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© 2004 Panasonic Communications Co., Ltd. Allrights reserved. Unauthorized copying anddistribution is a violation of law.
KX-FT906HG-BKX-FT908HG-B(Black Version)
(for Hungary )
Thermal FAX with Digital Answering System
IMPORTANT INFORMATION ABOUT LEAD FREE, (PbF), SOLDERINGIf lead free solder was used in the manufacture of this product the printed circuit boards will be marked PbF.
Standard leaded, (Pb), solder can be used as usual on boards without the PbF mark.
When this mark does appear, please read and follow the special instructions described in this manual on the use of PbF and howit might be permissible to use Pb solder during service and repair work.
ORDER NO. KMF0411828C2
1 INTRODUCTION 3
1.1. TRANSLATION LISTS 3
1.2. ABOUT LEAD FREE SOLDER (PbF: Pb free) 5
1.3. SAFETY PRECAUTIONS 7
1.4. INSULATION RESISTANCE TEST 7
1.5. FOR SERVICE TECHNICIANS 7
1.6. BATTERY CAUTION 7
1.7. AC CAUTION 8
1.8. PERSONAL SAFETY PRECAUTIONS 8
1.9. SERVICE PRECAUTIONS 9
2 FEATURES AND SPECIFICATIONS 10
2.1. FEATURES 10
2.2. OPTIONAL ACCESSORIES 10
2.3. SPECIFICATIONS 11
3 INSTALLATION 12
3.1. LOCATION OF CONTROLS 12
3.2. CONNECTIONS 14
3.3. INSTALLATION 15
4 MAINTENANCE 20
4.1. MAINTENANCE ITEMS AND COMPONENT LOCATIONS
20
4.2. JAMS 22
4.3. CLEANING 23
5 DISASSEMBLY INSTRUCTIONS 25
5.1. DISASSEMBLY FLOW CHART 25
6 DISASSEMBLY INSTRUCTIONS 27
6.1. HOW TO REMOVE THE PAPER STACKER 27
6.2. HOW TO REMOVE THE OPERATION PANEL BLOCK 28
6.3. HOW TO REMOVE THE OPERATION BOARD AND LCD
29
6.4. HOW TO REMOVE THE IMAGE SENSOR 30
6.5. HOW TO REMOVE THE THERMAL HEAD AND CUTTER
UNIT 31
6.6. HOW TO REMOVE THE DOCUMENT TRAY 32
6.7. HOW TO REMOVE THE BOTTOM FRAME 33
6.8. HOW TO REMOVE THE HANDSET CRADLE CABINET
AND SPEAKER 34
6.9. HOW TO REMOVE THE DIGITAL, ANALOG AND
POWER SUPPLY BOARD AND AC INLET 35
6.10. HOW TO REMOVE THE ROLLERS 36
6.11. HOW TO REMOVE THE MOTOR BLOCK 37
6.12. INSTALLATION POSITION OF THE LEAD WIRES 40
6.13. INSTALLATION OF THERMAL HEAD 41
7 TROUBLESHOOTING GUIDE 42
7.1. TROUBLESHOOTING SUMMARY 42
7.2. USER RECOVERABLE ERRORS 43
7.3. PROGRAMMING AND LISTS 45
7.4. TEST FUNCTIONS 48
7.5. TROUBLESHOOTING DETAILS 57
8 CIRCUIT OPERATIONS 109
8.1. CONNECTION DIAGRAM 109
8.2. GENERAL BLOCK DIAGRAM 110
8.3. CONTROL SECTION 112
8.4. FACSIMILE SECTION 119
8.5. SENSORS AND SWITCHES 129
8.6. MODEM SECTION 133
8.7. ANALOG UNIT BLOCK DIAGRAM 140
8.8. NCU SECTION 141
8.9. ITS (INTEGRATED TELEPHONE SYSTEM) AND
MONITOR SECTION 143
8.10. ATAS (AUTOMATIC TELEPHONE ANSWERING
SYSTEM) SECTION 143
8.11. OPERATION BOARD SECTION 145
8.12. LCD SECTION 146
8.13. POWER SUPPLY BOARD SECTION 147
9 REFERENCE MATERIAL DATA 150
9.1. TERMINAL GUIDE OF THE ICs TRANSISTORS AND
DIODES 150
9.2. HOW TO REPLACE THE FLAT PACKAGE IC 151
9.3. TEST CHART 155
10 FIXTURES AND TOOLS 157
11 CABINET, MECHANICAL 158
11.1. OPERATION PANEL SECTION 158
11.2. UPPER CABINET SECTION 159
11.3. LOWER CABINET 160
11.4. MOTOR SECTION 161
11.5. ACTUAL SIZE OF SCREWS 163
12 ACCESSORIES AND PACKING MATERIALS 164
13 REPLACEMENT PARTS LIST 165
13.1. CABINET AND ELECTRICAL PARTS 165
13.2. DIGITAL BOARD PARTS 166
13.3. ANALOG BOARD PARTS 168
13.4. OPERATION BOARD PARTS 169
13.5. POWER SUPPLY BOARD PARTS 170
13.6. FIXTURES AND TOOLS 171
14 MEMO 172
15 PRINTED CIRCUIT BOARD 173
15.1. DIGITAL BOARD (PCB1) 173
15.2. ANALOG BOARD (PCB2) 175
15.3. OPERATION BOARD (PCB3) 177
15.4. POWER SUPPLY BOARD (PCB4) 179
16 FOR THE SCHEMATIC DIAGRAMS 180
17 MEMO 181
18 SCHEMATIC DIAGRAM 182
18.1. DIGITAL BOARD (PCB1) 182
18.2. ANALOG BOARD (PCB2) 184
18.3. OPERATION BOARD (PCB3) 186
18.4. POWER SUPPLY BOARD (PCB4) 187
CONTENTS Page Page
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KX-FT906HG-B / KX-FT908HG-B
1 INTRODUCTION1.1. TRANSLATION LISTS
1.1.1. HELP FUNCTION
1.1.2. ERROR MESSAGES
1.1.2.1. DISPLAY
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KX-FT906HG-B / KX-FT908HG-B
1.1.2.2. REPORTS
1.1.3. OTHERS
4
KX-FT906HG-B / KX-FT908HG-B
1.2. ABOUT LEAD FREE SOLDER (PbF: Pb free)Note:
In the information below, Pb, the symbol for lead in the periodic table of elements, will refer to standard solder or solder thatcontains lead.
We will use PbF solder when discussing the lead free solder used in our manufacturing process which is made from Tin (Sn),Silver, (Ag), and Copper, (Cu).
This model, and others like it, manufactured using lead free solder will have PbF stamped on the PCB. For service and repairwork we suggest using the same type of solder although, with some precautions, standard Pb solder can also be used.
Caution
• • • • PbF solder has a melting point that is 50° ~ 70° F, (30° ~ 40°C) higher than Pb solder. Please use a soldering iron withtemperature control and adjust it to 700° ± 20° F, (370° ± 10°C). In case of using high temperature soldering iron, pleasebe careful not to heat too long.
• • • • PbF solder will tend to splash if it is heated much higher than its melting point, approximately 1100°F, (600°C).
• • • • If you must use Pb solder on a PCB manufactured using PbF solder, remove as much of the original PbF solder as possibleand be sure that any remaining is melted prior to applying the Pb solder.
• • • • When applying PbF solder to double layered boards, please check the component side for excess which may flow onto theopposite side (See figure, below).
1.2.1. SUGGESTED PbF SOLDER
There are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper,
(Sn+Ag+Cu), you can also use Tin and Copper, (Sn+Cu), or Tin, Zinc, and Bismuth, (Sn+Zn+Bi). Please check the manufac
turer’s specific instructions for the melting points of their products and any precautions for using their product with other
materials.
The following lead free (PbF) solder wire sizes are recommended for service of this product: 0.3mm, 0.6mm and 1.0mm.
5
KX-FT906HG-B / KX-FT908HG-B
1.2.2. HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED
P.C.Boards marked as “PbF” use Pb Free solder. (See the figure below.)
Pb Free is not used the Power Supply Board of this unit.
(Example : Digital Board)
6
KX-FT906HG-B / KX-FT908HG-B
1.3. SAFETY PRECAUTIONS 1. Before servicing, unplug the AC power cord to prevent an electric shock.
2. When replacing parts, use only the manufacturer´s recommended components.
3. Check the condition of the power cord. Replace if wear or damage is evident.
4. After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.
5. Before returning the serviced equipment to the customer, be sure to perform the following insulation resistance test to preventthe customer from being exposed to shock hazards.
1.4. INSULATION RESISTANCE TEST 1. Unplug the power cord and short the two prongs of the plug with a jumper wire.
2. Turn on the power switch.
3. Measure the resistance value with an ohmmeter between the jumpered AC plug and each exposed metal cabinet part
(screw heads, control shafts, bottom frame, etc.).
Note: Some exposed parts may be isolated from the chassis by design. These will read infinity.
4. If the measurement is outside the specified limits, there is a possibility of a shock hazard.
1.5. FOR SERVICE TECHNICIANSICs and LSIs are vulnerable to static electricity.
When repairing, the following precautions will help prevent recurring malfunctions.
1. Cover the plastic part´s boxes with aluminum foil.
2. Ground the soldering irons.
3. Use a conductive mat on the worktable.
4. Do not touch the IC or LSI pins with bare fingers.
1.6. BATTERY CAUTIONCAUTION
Danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent type recommended by themanufacturer. Dispose of used batteries according to the manufacturer’s Instructions.
The lithium battery is a critical component (type No. CR2032). Please observe for the proper polarity and the exact locationwhen replacing it and the exact location when replacing it and soldering the replacement lithium battery in.
Recommend Type Number:
CR2032 (BAT501) Manufactured by MATSUSHITA/SONY/TOSHIBA/HITACHI
7
KX-FT906HG-B / KX-FT908HG-B
1.7. AC CAUTIONFor safety, before closing the lower cabinet, please make sure of the following precautions.
1. The earth lead is fixed with the screw.
2. The AC connector is connected properly.
3. Wrap the earth lead around the core 5 times.
4. Wrap the AC lead around the core 4 times.
1.8. PERSONAL SAFETY PRECAUTIONS
1.8.1. MOVING SECTIONS OF THE UNIT
Be careful not to let your hair, clothes, fingers, accessories, etc., become caught in any moving sections of the unit.
The moving sections of the unit are the rollers and a gear. There is a separation roller and a document feed roller which are rotatedby the document feed motor. A gear rotates the two rollers. Be careful not to touch them with your hands, especially when the unitis operating.
8
KX-FT906HG-B / KX-FT908HG-B
1.8.2. LIVE ELECTRICAL SECTIONS
All the electrical sections of the unit supplied with AC power by the AC power cord are live.
Never disassemble the unit for service with the AC power supply plugged in.
CAUTION:
AC voltage is supplied to the primary side of the power supply unit. Therefore, always unplug the AC power cord beforedisassembling for service.
1.9. SERVICE PRECAUTIONS
1.9.1. PRECAUTIONS TO PREVENT DAMAGE FROM STATIC ELECTRICITY
Electrical charges accumulate on a person. For instance, clothes rubbing together can damage electric elements or change theirelectrical characteristics. In order to prevent static electricity, touch a metallic part that is grounded to release the static electricity.Never touch the electrical sections such as the power supply unit, etc.
9
KX-FT906HG-B / KX-FT908HG-B
2 FEATURES AND SPECIFICATIONS
2.1. FEATURESGeneral
• • • • Help function
Display: Refer to HELP FUNCTION (P.3)
− − − − HOW TO SET UP
− − − − DIRECTORY
− − − − AUTO ANSWER
− − − − CALLER ID
− − − − Telephone answering device operation
• • • • LCD (Liquid Crystal Display) readout
Facsimile
• • • • Resolution: Standard/Fine/Super Fine/Photo
• • • • Copier Function
• • • • Help Printout
• • • • Automatic Document Feeder (10 Sheets)
• • • • Easy-to-view LCD (15 Characters)
• • • • Broadcast (up to 10 Stations)
Integrated telephone system
• • • • One-touch dial (22 items)
• • • • Navigator directory (100 items)
• • • • Digital Duplex Speakerphone
Digital answering system
• • • • Voice Time/Day Stamp
• • • • Quick & Slow Playback Speeds
2.2. OPTIONAL ACCESSORIESModel No. Description Specifications
KX-A106 Standard thermal recording paper 216 mm × 30 m roll, with 25 mm core
Note:
Only use the included/specified recording paper, or else the print quality may be affected and/or excessive thermalhead wear may occur .
10
KX-FT906HG-B / KX-FT908HG-B
2.3. SPECIFICATIONSApplicable Lines: Public Switched Telephone NetworkDocument Size: Max. 216 mm in width
Max. 600 mm in lengthEffective Scanning Width: 208 mmRecording Paper Size: 216 mm × max. 30 m rollEffective Printing Width: 208 mmTransmission Time*1: Approx. 15 s/page (Original mode)*2
Scanning Density: Horizontal:
8 pels/mm
Vertical:
3.85 lines/mm — in standard resolution
7.7 lines/mm — in fine/photo resolution
15.4 lines/mm — in super fine resolutionHalftone Level: 64-levelScanner Type: Contact Image Sensor (CIS)Printer Type: Thermal PrintingData Compression System: Modified Huffman (MH), Modified READ (MR)Modem Speed: 9,600 / 7,200 / 4,800 / 2,400 bps; Automatic FallbackOperating Environment: 5—35°C, 20—80 % RH (Relative Humidity)Dimensions: Approx. height 120 mm × width 347 mm × depth 270 mmMass (Weight): Approx. 2.6 kg (KX-FT906HG-B) Approx. 2.7 kg (KX-FT908HG-B)Power Consumption: Standby: Approx. 3.0 W
Transmission: Approx. 25 W (When sending 20% black document)
Reception: Approx. 40 W (When receiving 20% black document)
Copy: Approx. 40 W (When copying the ITU-T No. 1 Test Chart)
Maximum: Approx. 125 W (When receiving a 100% black document)Power Supply: 220-240 V AC, 50/60 HzFax Memory Capacity: Approx. 20 pages of document memory (Based on the ITU-T No. 1 Test Chart in
standard resolution when no voice messages have been recorded.)Voice Memory Capacity*3: Approx. 20 minutes of recording time including greeting messages when no documents
are in memory.
*1 Transmission speed depends upon the contents of the pages, resolution, telephone line conditions and capability of the otherparty’s machine.
*2 Transmission speed is based upon the ITU-T No. 1 Test Chart. (Refer to ITU-T No.1 TEST CHART (P.155).) If the capability ofthe other party´s machine is inferior to your unit, the transmission time may be longer.
*3 Recording time may be reduced by the calling party’s background noise.
Note:
• • • • Any details given in these instructions are subject to change without notice.
• • • • The pictures and illustrations in these instructions may vary slightly from the actual product.
11
KX-FT906HG-B / KX-FT908HG-B
(1) Speaker
(2) Document guides
(3) Document tray
(4) Paper stacker (KX-FT908HG-B ONLY)The paper stacker may not be shown in all illustrations inthis operating instructions.
(5) Document exit
(6) Microphone
(7) Document entrance
(8) Cover open button
Note:
• • • • Remove all the blue shipping tapes beforeinstallation.
3 INSTALLATION3.1. LOCATION OF CONTROLS3.1.1. FRONT VIEW
12
KX-FT906HG-B / KX-FT908HG-B
(1) [TONE]
• • • • To change from pulse to tone temporarily during diallingwhen your line has rotary pulse services.
(2) [SLOW]
• • • • To slow down message playback.
(3) [QUICK]
• • • • To speed up message playback.
(4) [PLAY MESSAGES]
• • • • To play messages.
(5) [RECORD]
• • • • To record messages.
(6) [ERASE]
• • • • To erase messages.
(7) [BROADCAST]
• • • • To transmit a document to multiple parties.
(8) Station keys
• • • • To use the one-touch dial feature.
(9) [AUTO ANSWER]
• • • • To turn ON/OFF the auto answer setting.
(10) [CALLER ID]
• • • • To use Caller ID features.
(11) [STOP]
• • • • To stop an operation or programming.
(12) [FLASH]
• • • • To access special telephone services or for transferringextension calls.
(13) [REDIAL] [PAUSE]
• • • • To redial the last number dialled. If the line is busy whenyou make a phone call using the [DIGITAL SP-PHONE]button, the unit will automatically redial the number up to5 times.
• • • • To insert a pause during dialling
(14) [MUTE]
• • • • To mute your voice to the other party during aconversation. Press this button again to resume theconversation.
(15) [DIGITAL SP-PHONE]
• • • • For speakerphone operation.
(16) [MENU]
• • • • To initiate or exit programming.
(17) [NAVIGATOR] [VOLUME]
• • • • To adjust volume.
• • • • To search for a stored item.
• • • • To select features or feature settings duringprogramming.
• • • • To navigate to the next operation.
(18) [HELP]
• • • • To print helpful information for quick reference.
(19) [LOWER]
• • • • To select stations 12-22 for the one-touch dial feature.
(20) [MIC]
• • • • The built-in microphone.
(21) [FAX/START] [SET]
• • • • To start sending or receiving a fax.
• • • • To store a setting during programming.
(22) [COPY]
• • • • To copy a document.
3.1.2. CONTROL PANEL
13
KX-FT906HG-B / KX-FT908HG-B
3.2. CONNECTIONS
(1) Handset cord.
(2) Telephone line cord.
(3) Power cord (220-240 V AC, 50/60 Hz).
(4) Paper stacker. (KX-FT908HG-B ONLY)
(5) [EXT] jack
(6) Extension telephone (not included)
Caution:
• • • • When you operate this product, the power outlet should be near the product and easily accessible.
• • • • Be sure to use the telephone line cord included in this unit.
• • • • Do not extend the telephone line cord.
• • • • Keep the unit away from walls as far as possible to prevent a recording paper jam.
Note:
• • • • To avoid malfunction, do not position fax machine near appliance such as TVs or speakers which generate an intensemagnetic field.
• • • • If any other device is connected on the same line, this unit may disturb the network condition of the device.
14
KX-FT906HG-B / KX-FT908HG-B
3.3. INSTALLATION
3.3.1. INSTALLATION SPACE
The space required to install the unit is shown below.
The dimensions given are necessary for the unit to operate efficiently.
Note:
• • • • Avoid excessive heat or humidity.
• • • • Use the unit within the following ranges of temperature and humidity.
• • • • Ambient temperature: 5°C to 35°C
• • • • Relative humidity: 20% to 80% (without condensation)
• • • • Power cord length should be less than 5 meters. Using a longer cord may reduce the voltage or cause malfunctions.
• • • • Avoid direct sunlight.
• • • • Do not install near devices which contain magnets or generate magnetic fields.
• • • • Do not subject the unit to strong physical shock or vibration.
• • • • Keep the unit clean. Dust accumulation can prevent the unit from functioning properly.
• • • • To protect the unit from damage, hold both sides when you move it.
3.3.2. PAPER STACKER (KX-FT908HG-B ONLY)
Install the paper stacker.
15
KX-FT906HG-B / KX-FT908HG-B
1 Open the cover by pressing the cover open button ( ).
2 Install the recording paper.
3 Insert the leading edge of the paper into the opening above thethermal head ( ).
4 Pull the paper out of the unit.
• • • • Make sure that there is no slack in the paper roll.
5 Close the cover securely by pushing down on.
6 KX-FT906HG-BTear off the excess paper by pulling it towards you.
6 KX-FT908HG-BPress [FAX/START] to cut the paper.
Note: • • • • If the paper is secured with glue or tape, cut approximately
15 cm from the beginning of the roll before installing it.
• • • • When the power cord is connected, a message is printedeach time the cover is opened then closed. If the recordingpaper is installed upside down, the massage will not beprinted. Install the paper correctly.
3.3.3. RECORDING PAPER
16
KX-FT906HG-B / KX-FT908HG-B
3.3.4. DOCUMENTS THE UNIT CAN FEED
Note:
• • • • Remove clips, staples or other similar fasteners.
• • • • Do not send the following types of documents. (Make a copy of the document and send the copy.)
— Chemically treated paper such as carbon or carbon less duplicating paper
— Electrostatically charged paper
— Badly curled, creased or torn paper
— Paper with a coated surface
— Paper with a faint image
— Paper with printing on the opposite side that can be seen through the other side (i.e. newspaper)
• • • • Check that ink, paste or correction fluid has dried completely.
• • • • To transmit the document with a width of less than standard A4 size (210 mm), we recommend using a copy machine tocopy the original document onto A4 or letter-sized paper, then transmit the copied document.
17
KX-FT906HG-B / KX-FT908HG-B
The logo can be your company, division or name.
Refer to TRANSLATION LISTS (P.3)
3.3.5. SETTING YOUR LOGO
To enter your logoExample: “BI LL”
1. Press [2] 2 times.
2. Press [4] 3 times.
3. Press [5] 3 times.
4. Press [ ] to move the cursor to the next space and press[5] 3 times.
1 Press [MENU].
2 Press [SET].
3 Press [ ] or [ ] repeatedly to display the following. To correct a mistakePress [ ] or [ ] to move the cursor to the incorrect character,and make the correction.
To delete a characterPress [ ] or [ ] to move the cursor to the character you wantto delete and press [STOP].
To insert a character 1. Press [ ] or [ ] to move the cursor to the position to the
right of where you want to insert the character.
2. Press [MUTE] to insert a space and enter the character.4 Press [SET].
• • • • The underbar shows a position of the cursor.
5 Enter your logo, up to 30 characters. See the character table onpage 15 for details.
6 Press [SET]. • • • • The next feature will be displayed.
7 Press [MENU] to exit the program.
Note: • • • • Your logo will be printed on each page transmitted from
your unit.
18
KX-FT906HG-B / KX-FT908HG-B
To select characters using or
Instead of pressing the dial keys, you can select charactersusing or .
1. Press repeatedly to display the desired character.Characters will be displayed in the following order.
a. Uppercase letters
b. Number
c. Symbol
d. Lowercase letters
• • • • If you press , the order will be reversed.
2. Press [ ] to insert the character.
• • • • The character displayed in step 1 is inserted.
3. Return to step 1 to enter the next character.
3.3.5.1. TO SELECT CHARACTERS WITH THE DIAL KEYPAD
Pressing the dial keys will select a character as shown below.
19
KX-FT906HG-B / KX-FT908HG-B
4 MAINTENANCE4.1. MAINTENANCE ITEMS AND COMPONENT LOCATIONS
4.1.1. OUTLINE
MAINTENANCE AND REPAIRS ARE PERFORMED USING THE FOLLOWING STEPS.
1. Periodic maintenance
Inspect the equipment periodically and if necessary, clean any contaminated parts.
2. Check for breakdowns
Look for problems and consider how they arose.
If the equipment can be still used, perform copying, self testing or communication testing.
3. Check equipment
Perform copying, self testing and communication testing to determine if the problem originates from the transmitter, receiver orthe telephone line.
4. Determine causes
Determine the causes of the equipment problem by troubleshooting.
5. Equipment repairs
Repair or replace the defective parts and take appropriate measures at this stage to ensure that the problem will not recur.
6. Confirm normal operation of the equipment
After completing the repairs, conduct copying, self testing and communication testing to confirm that the equipment operatesnormally.
7. Record keeping
Make a record of the measures taken to rectify the problem for future reference.
4.1.2. COMPONENT LOCATIONS
20
KX-FT906HG-B / KX-FT908HG-B
4.1.2.1. MAINTENANCE LIST
NO. OPERATION CHECK REMARKS1 Document Path Remove any foreign matter such as paper. —2 Rollers If the roller is dirty, clean it with a damp cloth then dry
thoroughly.Refer to DOCUMENT FEEDER (P.23).
3 Platen Roller If the platen is dirty, clean it with a damp cloth then drythoroughly. Remove the paper and film cartridge beforecleaning.
—
4 Thermal Head If the thermal head is dirty, clean the printing surface with acloth moistened with denatured alcohol (alcohol withoutwater), then dry thoroughly.
Refer to THERMAL HEAD (P.24).
5 Sensors Document sensor (PS1), Read position sensor (sw44),Recording paper/cover open sensor(SW1), Jam sensor(SW3), Hook switch (SW2) Chloroform the operation ofthe sensors.
See COMPONENT LOCATIONS (P.20) andHOW TO REMOVE THE DIGITAL, ANALOGAND POWER SUPPLY BOARD AND ACINLET (P.35).
6 Glass If the glass is dirty, clean with a dry soft cloth. Refer to DOCUMENT FEEDER (P.23).7 Abnormal, wear and tear
or loose partsReplace the part. Check if the screws are tight on all parts. —
4.1.2.2. MAINTENANCE CYCLE
No. Item Cleaning Cycle ReplacementCycle Procedure
1 Separation Roller (Ref. No. 141) 3 months 7 years* (10,000 documents) Refer to HOW TO REMOVE THE MOTORBLOCK (P.37).
2 Separation Rubber (Ref. No. 11) 3 months 7 years (10,000 documents) Refer to COMPONENT LOCATIONS (P.20).3 Feed Rollers (Ref. No. 9) 3 months 7 years (10,000 documents) Refer to DISASSEMBLY INSTRUCTIONS
(P.25).4 Thermal Head (Ref. No. 95) 3 months 7 years (10,000 documents) Refer to HOW TO REMOVE THE
THERMAL HEAD AND CUTTER UNIT(P.31).
5 Platen Roller (Ref. No. 54) 3 months 7 years (10,000 documents) Refer to HOW TO REMOVE THE ROLLERS(P.36).
6 Pickup Roller (Ref. No. 46) 3 months 7 years (10,000 documents) Refer to HOW TO REMOVE THE ROLLERS(P.36).
* These values are standard and may vary depending on usage conditions.
21
KX-FT906HG-B / KX-FT908HG-B
1 Open the cover by pressing the cover open button ( ).
2 KX-FT906HG-Bskip to step 3KX-FT908HG-BLift the green lever. • • • • The paper cutter will be released
3 Remove the recording paper.
4 Cut off the wrinkled portion.
5 Install the recording paper and close the cover securely bypushing down on both sides.
4.2. JAMS
4.2.1. RECORDING PAPER JAMS
When the recording paper has jammed in the unit
The display will show the following.
Refer to TRANSLATION LISTS (P.3)
22
KX-FT906HG-B / KX-FT908HG-B
4.2.2. DOCUMENT JAMS - SENDING
1 Open the cover by pressing the cover open button ( ) andremove the jammed document carefully ( ).
2 Close the cover securely by pushing down on both sides.
Note: • • • • Do not pull out the jammed paper forcibly before
opening the front cover.
4.3. CLEANING
4.3.1. DOCUMENT FEEDER
Clean the document feeder when:
- Documents frequently misfiled.
- Smudges or black/white lines appear on the originaldocument when transmitting or copying.
1 Disconnect the power cord and the telephone line cord.
2 Open the cover by pressing the cover open ( ) button.
3 Clean the document feeder rollers ( ) and rubber flap ( )with a cloth moistened with isopropyl rubbing alcohol, and let allparts dry thoroughly. Clean the white plate ( ) and scannerglass ( ) with a soft and dry cloth.Caution:
Do not use paper products, such as paper towels ortissues.
4 Connect the power cord and the telephone line cord.
5 Close the cover securely by pushing down on both sides.
23
KX-FT906HG-B / KX-FT908HG-B
4.3.2. THERMAL HEAD
If smudges or black/white lines appear on a copied/receiveddocument, check whether there is dust on the thermal headand head cover. Clean them to remove the dust.
1 Disconnect the power cord and the telephone line cord.
2 Open the cover by pressing the cover open button ( ) andremove the recording paper.
3 Clean the thermal head ( ) and head cover ( ) with a clothmoistened with isopropyl rubbing alcohol, and let all parts drythoroughly.
Caution:To prevent a malfunction due to static electricity, do notuse a dry cloth and do not touch the thermal headdirectly.
4 Connect the power cord and the telephone line cord.
5 Install the recording paper and close the cover securely bypushing down on both sides.
24
KX-FT906HG-B / KX-FT908HG-B
5 DISASSEMBLY INSTRUCTIONS5.1. DISASSEMBLY FLOW CHART
5.1.1. UPPER CABINET SECTION
CROSS REFERENCE:
A-1: HOW TO REMOVE THE PAPER STACKER (P.27)
A-2: HOW TO REMOVE THE OPERATION PANEL BLOCK (P.28)
A-3: HOW TO REMOVE THE OPERATION BOARD AND LCD (P.29)
A-4: HOW TO REMOVE THE IMAGE SENSOR (P.30)
A-5: HOW TO REMOVE THE THERMAL HEAD AND CUTTER UNIT (P.31)
A-6: HOW TO REMOVE THE DOCUMENT TRAY (P.32)
25
KX-FT906HG-B / KX-FT908HG-B
5.1.2. LOWER CABINET SECTION
CROSS REFERENCE:
A-1: HOW TO REMOVE THE PAPER STACKER (P.27)
A-2: HOW TO REMOVE THE OPERATION PANEL BLOCK (P.28)
B-1: HOW TO REMOVE THE BOTTOM FRAME (P.33)
B-2: HOW TO REMOVE THE HANDSET CRADLE CABINET AND SPEAKER (P.34)
B-3: HOW TO REMOVE THE DIGITAL, ANALOG AND POWER SUPPLY BOARD AND AC INLET (P.35)
B-4: HOW TO REMOVE THE ROLLERS (P.36)
B-5: HOW TO REMOVE THE MOTOR BLOCK (P.37)
26
KX-FT906HG-B / KX-FT908HG-B
6 DISASSEMBLY INSTRUCTIONS6.1. HOW TO REMOVE THE PAPER STACKER
27
KX-FT906HG-B / KX-FT908HG-B
6.2. HOW TO REMOVE THE OPERATION PANEL BLOCK
28
KX-FT906HG-B / KX-FT908HG-B
6.3. HOW TO REMOVE THE OPERATION BOARD AND LCD
29
KX-FT906HG-B / KX-FT908HG-B
6.4. HOW TO REMOVE THE IMAGE SENSOR
30
KX-FT906HG-B / KX-FT908HG-B
6.5. HOW TO REMOVE THE THERMAL HEAD AND CUTTER UNIT
31
KX-FT906HG-B / KX-FT908HG-B
6.6. HOW TO REMOVE THE DOCUMENT TRAY
32
KX-FT906HG-B / KX-FT908HG-B
6.7. HOW TO REMOVE THE BOTTOM FRAME
33
KX-FT906HG-B / KX-FT908HG-B
6.8. HOW TO REMOVE THE HANDSET CRADLE CABINET AND SPEAKER
34
KX-FT906HG-B / KX-FT908HG-B
6.9. HOW TO REMOVE THE DIGITAL, ANALOG AND POWER SUPPLYBOARD AND AC INLET
35
KX-FT906HG-B / KX-FT908HG-B
6.10. HOW TO REMOVE THE ROLLERS
36
KX-FT906HG-B / KX-FT908HG-B
6.11. HOW TO REMOVE THE MOTOR BLOCK
37
KX-FT906HG-B / KX-FT908HG-B
CROSS REFERENCE:
HOW TO REMOVE THE THERMAL HEAD AND CUTTER UNIT (P.31)
38
KX-FT906HG-B / KX-FT908HG-B
39
KX-FT906HG-B / KX-FT908HG-B
6.12. INSTALLATION POSITION OF THE LEAD WIRES
40
KX-FT906HG-B / KX-FT908HG-B
6.13. INSTALLATION OF THERMAL HEAD
41
KX-FT906HG-B / KX-FT908HG-B
7 TROUBLESHOOTING GUIDE
7.1. TROUBLESHOOTING SUMMARY
7.1.1. TROUBLESHOOTING
After confirming the problem by asking the user, troubleshoot according to the instructions and observe the following precautions.
7.1.2. PRECAUTIONS
1. If there is a problem with the print quality or the paper feed, first check if the installation space and the print paper meets thespecifications, the paper selection lever/paper thickness lever is set correctly, and the paper is set correctly without any slack.
2. Before troubleshooting, first check that the connectors and cables are connected correctly (not loose).
If the problem occurs randomly, check it very carefully.
3. When connecting the AC power cord with the unit case and checking the operation, exercise utmost care when handling electricparts in order to avoid electric shocks and short-circuits.
4. After troubleshooting, double check that you have not forgotten any connectors, left any loose screws, etc.
5. Always test to verify that the unit is working normally.
7.1.3. WHEN YOU DON´T KNOW HOW TO OPERATE THE UNIT, USE THE HELPFUNCTION
• • • • How to use:
1. press repeatedly until the desired item is displayed.
2. press .
42
KX-FT906HG-B / KX-FT908HG-B
• • • • There is something wrong with the unit.
[This error is displayed when the thermal head does notwarm up. Check the thermistor on the thermal head andconnector lead.]
• • • • This message appears when the gear is not in an idle state.Check the GEAR BLOCK and Handset JACK UNIT.
(Refer to GEAR SECTION (P.125).)
• • • • The cover is open. Close it.
• • • • The unit has run out of recording paper. Install a recordingpaper(Refer to RECORDING PAPER JAMS (P.22).)
• • • • The document was not fed into the unit properly. Re-insertthe document. If misfeeding occurs frequently, clean thedocument feeder rollers and try again.
(Refer to DOCUMENT FEEDER (P.23).)
• • • • Attempted to send a document longer than 600 mm. Press[STOP] to remove the document. Divide the document intotwo or more sheets and try again.
• • • • The memory (telephone numbers, parameters, etc.) hasbeen erased. Re-program.
• • • • There is no space to store new items in navigator directory.Erase unnecessary items.
• • • • The unit has a document in memory. See the otherdisplayed message instructions to print out the document.
• • • • There is no memory available to receive fax documents andrecord voice messages. Print out the documents in memoryor erase unnecessary messages.
• • • • The other partyís fax machine is busy or has run out ofrecording paper. Try again.
• • • • Your TAD/FAX greeting message is not recorded. Record amessage.
• • • • The voice guidance feature is set to OFF. Activate feature#47 (Refer to SERVICE FUNCTION TABLE (P.46). Thepre-recorded greeting message will be used.
• • • • Your transfer greeting message is not recorded. Record amessage.
• • • • he voice guidance feature is turned OFF. Activate feature#47 (Refer to SERVICE FUNCTION TABLE (P.46). Thepre-recorded greeting message will be used.
• • • • A recording paper jam occurred. Clear the jammed paper.(Refer to RECORDING PAPER (P.16).)
• • • • The recording paper is not installed correctly. Install thepaper correctly.(Refer to RECORDING PAPER (P.16).)
• • • • The other partyís fax machine does not offer the pollingfunction. Check with the other party.
• • • • The other party´s fax machine is busy or has run out ofrecording paper. Try again.
• • • • The document is jammed. Remove the jammed document.(Refer to DOCUMENT JAMS - SENDING (P.23).)
• • • • Press [STOP] to eject the jammed document.
7.2. USER RECOVERABLE ERRORSIf the unit detects a problem, one or more of the following messages will appear on the display.
The explanations given in the [ ] are for servicemen only.
Refer to TRANSLATION LISTS (P.3)
43
KX-FT906HG-B / KX-FT908HG-B
• • • • A transmission error occurred. Try again.
• • • • The unit is too hot. Stop using the unit for a while and let theunit cool down.
44
KX-FT906HG-B / KX-FT908HG-B
7.3. PROGRAMMING AND LISTSThe programming functions are used to program the various features and functions of the machine, and to test the machine.Programming can be done in both the on-hook and off-hook conditions. This facilitates communication between the user andthe service while programming the machine.
7.3.1. OPERATION
There are 2 basic categories of programming functions, the User Mode and the Service Mode. The Service Mode is further brokendown into the normal and special programs. The normal programs are those listed in the Operating Instructions and are availableto the user. The special programs are only those listed here and not displayed to the user. In both the User and Service Modes,there are Set Functions and Test Functions. The Set Functions are used to program various features and functions, and the TestFunctions are used to test the various functions.The Set Functions are accessed by entering their code, changing the appropriate value, then pressing the SET key.The Test Functions are accessed by entering their code and pressing the key listed on the menu. While programming, to cancelany entry, press the STOP key.
7.3.2. OPERATION FLOW
Refer to TRANSLATION LISTS (P.3)
45
KX-FT906HG-B / KX-FT908HG-B
7.3.3. SERVICE FUNCTION TABLE
Code Function Set Value Effective Range Default Remarks501 Setting the pause time 001~600 X 100 msec 001~600 050 Selects the pause time in 100 msec steps.502 Setting the flash recall time 01~99 X 10 msec 01~99 10 Selects the line break time during flashing in 10
msec steps.503 Setting the pulse dial
speed1:10pps 2:20pps 1, 2 1 Sets the pulse dial speed.
510 VOX time 1:6 sec 2:4 sec 1, 2 1 Setting of the end of call confirmation time byVOX.
514 Bell detection time X 100 msec 1~9 6 ----------520 Setting the CED frequency 1:2100Hz 2:1100Hz 1, 2 1 When international communications cannot be
performed smoothly select 1100Hz. Howeversome exchange system should not beaccopted (1100Hz on CED). (Refer to "5. Unitcan copy, but cannot transmit/receive longdistance or international communications" inDEFECTIVE FACSIMILE SECTION (P.67).)
521 Setting the internationalline mode
1:ON 2:OFF 1, 2 1 Selects the international line mode during FAXcommunication. (Refer to "5. Unit can copy, butcannot transmit/receive long distance orinternational communications" in DEFECTIVEFACSIMILE SECTION (P.67).)
522 Setting the return to defaultmode
1:ON 2:OFF 1, 2 1 Set the resolution and contrast conditions forFAX or copy to the default settings.
523 Receive equalizer select 1:0km 2:1.8km3:3.6km 4:7.2km
1~4 1 When the telephone station is far from the unitor reception cannot be performed correctly,adjust accordingly.
524 Transmission equalizerselect
1:0km 2:1.8km3:3.6km 4:7.2km
1~4 1 When the telephone station is far from the unitor reception cannot be performed correctly,adjust accordingly.
533 Setting the number of timethat message transfer isredialed
00~99 00~99 03 times Selects the number of times that messagetransfer is redialed (not including the firstdialing).
534 Setting the messagetransfer/paper call redialinterval
001~999 sec 001~999 065 sec Sets the interval of message transfer/pager callredial.
544 Selecting the documentfeed position (KX-FT906HG-B)
01~99 step 01~99 48 When the ADF function is incorrect, adjust thefeed position. (8 step = 1mm) If it is difficult tofeed documents, raise the set value. If multidocument feed occurs, lower the set value.
544 Selecting the documentfeed position (KX-FT908HG-B)
01~99 step 01~99 50 When the ADF function is incorrect, adjust thefeed position. (8 step = 1mm) If it is difficult tofeed documents, raise the set value. If multidocument feed occurs, lower the set value.
550 Memory clear Refer to TEST FUNCTIONS (P.48)551 ROM version and sum check Refer to TEST FUNCTIONS (P.48)552 DTMF signal tone test 1:ON 2:OFF 1, 2 2 Refer to TEST FUNCTIONS (P.48)553 Setting the FAX monitor
function1: OFF 2:PHASE B3:ALL
1, 2, 3 1 Sets whether to monitor the line signal with theunit´s speaker during FAX communication ornot.
554 Modem test Refer to TEST FUNCTIONS (P.48)555 Scanner test Refer to TEST FUNCTIONS (P.48)556 Motor test Refer to TEST FUNCTIONS (P.48)557 LED test Refer to TEST FUNCTIONS (P.48)558 LCD test Refer to TEST FUNCTIONS (P.48)559 Setting the document jam
detection1:ON 2:OFF 1, 2 1 Selects the jam detection of a document during
FAX transmission/copying.560 Cutter selection (KX-
FT908HG-B)1:ON 2:OFF 1, 2 1 Turns OFF the cutter function.
561 KEY test Refer to TEST FUNCTIONS (P.48)562 Cutter test (KX-FT908HG-
B)Refer to TEST FUNCTIONS (P.48)
570 Setting the % break 1:61% 2:67% 1, 2 2 Sets the % break of pulse dialing.571 Setting the number of
times that ITS is redialed00~99 00~99 10times Selects the number of times that ITS is redialed
(not including the first dial).572 Setting the ITS redial
interval001~999 sec 001~999 065 sec Sets the interval of ITS redialing.
573 Setting of number of ringsfor REMOTE TURN ON
01~99 01~99 10 times Sets the number of rings before the unit startsto receive a document in the TEL mode.
580 TAM continuous tonedetection
1:ON 2:OFF 1, 2 1 ON: Stops TAM operation when Dial tone, etc.are detected.
590 Setting the number of FAXredial times
00~99 00~99 05 times Selects the number of redial times during FAXcommunication (not including the first dial).
46
KX-FT906HG-B / KX-FT908HG-B
Code Function Set Value Effective Range Default Remarks591 Setting the FAX redial
interval001~999 sec 001~999 065 sec Sets the FAX redial interval during FAX
communication.592 Designation of CNG
sending1: OFF 2:ALL 3:AUTO 1, 2, 3 2 Lets you select the CNG output during FAX
transmission. ALL: CNG is output at phase A.AUTO: CNG is output only when automaticdialing is performed. OFF: CNG is not output atphase A.
593 Setting the intervalbetween CED and the 300bps signal
1: 75 msec 2:500msec 3:1000 msec
1, 2, 3 1 Sets the interval between the CED signal andsubsequent 300 bps signal. (Refer to "5. Unitcan copy, but cannot transmit/receive longdistance or international communications" inDEFECTIVE FACSIMILE SECTION (P.67).)
594 Setting the overseas DISdetection
1: Detects on the 1sttime.2: Detects on the2nd time.
1, 2 1 Sets the recognition format of the DIS signal.1:Detects the first DIS signal sent from thereceiver during FAX transmission. 2:Ignoresthe first DIS signal sent from the receiver duringFAX transmission. (Refer to "5. Unit can copy,but cannot transmit/receive long distance orinternational communications" in DEFECTIVEFACSIMILE SECTION (P.67).)
595 Setting an acceptablereception error value
001~999 X number oftimes
001~999 100 Sets the number of acceptable error lines whenthe FAX reconstructs the received data.
596 Setting the transmit level - 15~00 15~00 10 Selects the FAX transmission level.598 Receiving Sensitivity - 43dBm 20~48 42 (Refer to "5. Unit can copy, but cannot
transmit/receive long distance or internationalcommunications" in DEFECTIVE FACSIMILESECTION (P.67).)
710 Memory clear exceptHistory data
To reset the value to the default one, exceptHistory data. Please restart a power supplyafter clearing a memory.
717 Transmit speed select 1:9600BPS2:7200BPS3:4800BPS4:2400BPS
1~4 1 Adjusts the speed to start training during FAXtransmission.
718 Receive speed select 1:9600BPS2:7200BPS3:4800BPS4:2400BPS
1~4 1 Adjusts the speed to start training during FAXreception.
719 Ringer off in TEL/FAXmode
1:ON 2:OFF 1, 2 1 Sets the ringer switch off when a call isreceived in the TEL/FAX mode.
721 Pause tone detect 1:ON 2:OFF 1, 2 1 Selects the tone detection for pauses in dialing.722 Redial tone detect 1:ON 2:OFF 1, 2 1 Selects the tone detection mode after redialing.731 CPC mode 1:A 2:B 3:OFF 1, 2, 3 1 Set the CPC signal detection mode from the
converter.763 CNG detect time 1:10 sec 2:20 sec
3:30 sec1, 2, 3 2 Selects the CNG detection time of friendly
reception.771 T1 timer 1:35 sec 2:60 sec 1, 2 2 Sets a higher value when the response from
the other party needs more time during FAXtransmission.
774 T4 timer 00~99 00~99 00775 Monitoring of message
transfer1:ON 2:OFF 1, 2 2 If set to ON a message can be monitored from
this unit´s SP-PHONE when transferring amessage.
784 Voice prompt test Refer to TEST FUNCTIONS (P.48)815 Sensor check Refer to TEST FUNCTIONS (P.48)841 Digital SP-Phone check Refer to DIGITAL SPEAKERPHONE (P.153).874 DTMF on time 060~200 ms 060~200 090 ----------875 DTMF off time 060~200 ms 060~200 090 ----------882 Journal 3 list Refer to JOURNAL 3 (P.87).
47
KX-FT906HG-B / KX-FT908HG-B
7.4. TEST FUNCTIONSTest Mode Type of Mode Code Function
Operation after codeinput
PRINT TEST Service Mode “8” “5” Prints a test pattern and checks the thermal head for abnormalities (missing dots,etc), and also checks the operation of the reception motor.(Refer to PRINT TESTPATTERN (P.49).)
START
MOTOR TEST Service Mode “5” “5” “6” Rotates the transmission and reception motors to check the operation of themotors.0.....Stop1.....Turn forward TX roller at 400pps 2-2 phase2.....Turn forward TX roller at 400pps 1-2 phase3.....Turn forward RX roller at 400pps 2-2 phase4.....Turn forward RX roller at 400pps 1-2 phase5.....Turn forward TX/RX roller at 400pps 1-2 phase6.....Reverse the motor at 400pps 1-2 phase7.....Set the cam gear to the home position8.....Set the cam gear to the RX mode9.....Set the cam gear to the copy modepress the STOP button to cancel.
START
MODEM TEST Service Mode “5” “5” “4” Sends four kinds of FAX signals to check the sending function of the modem.1)1100 Hz: Consecutive signal of EOM for tonal2)2100 Hz: G2 carrier signalConsecutive of CED signal
3)G3,V29 training signal [modulation wave of carrier signal (1700 Hz )]
START
ROM CHECK Service Mode “5” “5” “1” Indicates the version and checks the sum of the ROM.START
SCAN CHECK Service Mode “5” “5” “5” Turns on the LEDs of the image sensor and operates the read systems. Refer toREAD SECTION (P.106)START
LCD CHECK Service Mode “5” “5” “8” Check the LCD indication.Illuminates all the dots to check if they are normal.Refer to OPERATION PANEL SECTION (P.165)START
DTMF SINGLE TEST Service Mode “5” “5” “2” Outputs the DTMF as single tones. Used to check the frequencies of theindividual DTMF tones. Refer to DTMF SINGLE TONE TRANSMIT SELECTION(P.49).
1....ON2....OFF
KEY CHECK Service Mode “5” “6” “1” Checks the button operation.Indicates the button code on the LCD while the button is pressed. Refer toBUTTON CODE TABLE (P.49).Refer to OPERATION PANEL SECTION (P.165)
START (any key)
CUTTER TEST Service Mode “5” “6” “2” Checks the cutter operation. (KX-FT908HG-B ONLY)START
FACTORY SET Service Mode “5” “5” “0” To reset the value to the default one, except time/day (#001), logo (#002), Faxno. (#003), History and Directory data.Please restart a power supply after clearing a memory.
START
VOICE PROMPT TEST Service Mode “7” “8” “4” You can hear the voice prompt from speaker afer pressing “START”keySTART
SENSOR CHECK &VOX CHECK
Service Mode “8” “1” “5” CHECK THE SENSOR OPERATIONAfter entering this mode, perform the copy operation.For each sensor’s operation, refer to SENSORS AND SWITCHES(P.129).Do Sn Pa : LCD DISPLAY
Do: Document set sensor:Paper inserted. Turns on when a document is inserted.
Sn: Read position sensor.:At the read position, turns on when the front cover is opened and thesensor lever is pressed directory.
Pa: Recording Paper Sensor:Set Recording Paper. Turns on and off when the cassette lock lever ispushed down and up.
START
LED CHECK Service Mode “5” “5” “7” Turn on the message LED.START
DIGITALSPEAKERPHONE RX& TX CHECK
Service Mode “8” “4” “1” Please refer to DIGITAL SPEAKERPHONE (P.153)SPEAKERPHONE
48
KX-FT906HG-B / KX-FT908HG-B
When set to ON (=1), the 12 keys and transmissionfrequencies are as shown.
key High Frequency (Hz) key Low Frequency (Hz)“1” 697 “5” 1209“2” 770 “6” 1336“3” 852 “7” 1477“4” 941 “8” 1633
When set to OFF (=2), the 12 keys and transmissionfrequencies are as shown.
High (Hz) 1209 1336 1477Low (Hz)697 “1” “2” “3”770 “4” “5” “6”852 “7” “8” “9”941 “ ” “0” “#”
7.4.1. DTMF SINGLE TONE TRANSMIT SELECTION
Note:
After performing this check, do not forget to turn the setting off.
Otherwise, dialing in DTMF signal will not work.
7.4.2. BUTTON CODE TABLE
Code Button Name Code Button Name Code Button Name03 AUTO ANSWER 1D LOWER 00 NO INPUT04 FAX/START 31 1 01 STOP05 MENU 32 2 5A STATION 107 HELP 33 3 5B STATION 208 SP-PHONE 34 4 5C STATION 309 COPY 35 5 5D STATION 40A MUTE 36 6 5E STATION 50B PREV 37 7 5F STATION 60C NEXT 38 8 60 STATION 70D VOLUME 39 9 61 STATION 80E VOLUME 3A 0 62 STATION 914 RECORD 3B 63 STATION 1016 ERASE 3C # 64 STATION 1118 PLAY MESSAGE 3D REDIAL/PAUSE1C CALLER ID 3E FLASH
Note:
These codes (00, 01) are only for the data in the History Report.
7.4.3. PRINT TEST PATTERN
49
KX-FT906HG-B / KX-FT908HG-B
7.4.4. REMOTE PROGRAMMING
If, after the call is connected, the customer describes the situation and it is determined that the problem can be corrected bymaking parameter changes, this function makes it possible to change parameters such as the user code and service code fromanother fax (using DTMF tones). Therefore, travel to the customer´s location is not required. However, it is not possible tochange all the parameters remotely (Refer to PROGRAM MODE TABLE (P.51)). The function used to accomplish this isremote programming.
First, in order to check the current status of the service code parameter, out put the setup list (code: 991) and service list (code:999) from the customer´s fax machine. Based on this, the parameters for the desired codes can be changed. The procedurefor changing and listing parameters is described on ENTERING THE REMOTE PROGRAMMING MODE AND CHANGINGSERVICE CODES (P.50). Also, before exiting the remote programming mode, it is advisable to obtain a new list to confirm thatonly the desired parameters were changed.
Hint:
Since the connected telephone is in use during the remote programming mode, it may be helpful to ask the customer to switchto the speakerphone (except for a digital speakerphone). This frees the customer from the need to remain right next to the faxwhile you are making parameter settings. When finished, inform the customer. Also note that in very noisy locations where theDTMF tones are not audible, the remote programming function will not work.
7.4.4.1. ENTERING THE REMOTE PROGRAMMING MODE AND CHANGING SERVICECODES
CROSS REFERENCE:
PROGRAM MODE TABLE (P.51)
50
KX-FT906HG-B / KX-FT908HG-B
7.4.4.2. PROGRAM MODE TABLE
Code Function Set Value Default Remote setting001 Set the date and time mm/dd/yy AM/PM --------- NG002 Your logo --------- --------- NG003 Your FAX number --------- --------- NG004 Print transmission report ERROR/ON/OFF ERROR OK005 Auto answer 1:TEL/FAX / 2:FAX ONLY / 3:TAD/FAX TAD/FAX OK006 TAD/FAX ring count 1~4:TOLL SAVER/RINGER OFF 2 OK007 FAX ring count 1 to 4 rings 2 ring OK009 TEL/FAX delayed ring 1 to 4 rings 2 ring OK010 Recording time VOX/1 MIN VOX OK011 Remote ANS ID --------- ID=111 NG013 Dialing mode 1:PULSE / 2:TONE TONE OK022 Journal auto print 1:ON 2:OFF ON OK023 Overseas mode 1:ON 2:OFF OFF OK025 Delayed send 1:ON 2:OFF OFF NG026 Auto caller ID list 1:ON 2:OFF ON OK030 Silent FAX recognition ring 3 to 9 rings 3 rings OK036 RCV reduction 1:ON 2:OFF ON OK039 LCD contrast NORMAL/DARKER NORMAL NG041 FAX activation code 1:ON 2:OFF ON/ID=*#9 NG042 Message alert 1:ON 2:OFF OFF OK043 REC. time alert 1:ON 2:OFF OFF OK046 Friendly reception 1:ON 2:OFF ON OK047 Voice guidance 1:ON 2:OFF ON OK048 Language 1:HUNGARIAN / 2:ENGLISH ENGLISH OK049 Auto disconnect 1:ON 2:OFF ON/ID=*0 NG054 Common greeting MSG. REC. time 16s/60s 16s OK058 Original setting NORMAL/LIGHT/DARKER NORMAL OK059 Print contrast NORMAL/DARKER NORMAL OK060 Message transfer 1:ON 2:OFF OFF NG061 Transfer greeting CHECK/RECORD/ERASE CHECK NG067 ICM monitor 1:ON 2:OFF ON OK070 Pager call 1:ON 2:OFF OFF NG076 Connecting tone 1:ON 2:OFF ON OK080 Set the default YES/NO NO NG501 Pause time set 001~600 X 100 msec 050 OK502 Flash time set 01~99 X 10 msec 10 OK503 Dial speed set 1:10pps 2:20 pps 10 OK510 Vox time 1:6sec 2:4sec 6sec OK514 Bell detection time 1~9 x 100msec 6 x 100msec OK520 CED frequency select 1:2100Hz 2:1100Hz 2100 OK521 International mode select 1:ON 2:OFF ON OK522 Auto standby select 1:ON 2:OFF ON OK523 Receive equalizer select 1:0km 2:1.8km 3:3.6km 4:7.2km 0km OK524 Transmission equalizer select 1:0km 2:1.8km 3:3.6km 4:7.2km 0km OK533 Setting the number of times that message transfer is redialled. 00~99 03 OK534 Setting of the message transfer/pager call redial interval 001~999 065 OK544 Document feed position adjustment value set (KX-FT906HG-B) 01~99 step 48 OK544 Document feed position adjustment value set (KX-FT908HG-B) 01~99 step 50 OK550 Memory clear Press "START". --------- NG551 ROM check Press "START". --------- NG552 DTMFsignal tone test 1:ON 2:OFF OFF NG553 Monitor on FAX communication select 1:OFF 2:P-B 3:ALL OFF OK554 Modem test Press "START". --------- NG555 Scanner test Press "START". --------- NG556 Motor test Press "START". --------- NG557 LED test Press "START". --------- NG558 LCD test Press "START". --------- NG559 Document jam detection select 1:ON 2:OFF ON OK560 Cutter selection (KX-FT908HG-B ONLY) 1:ON 2:OFF ON OK561 Key test Press any key. --------- NG562 Cutter test (KX-FT908HG-B ONLY) "START" push --------- NG570 Break % select 1:61% 2:67% 67% OK571 ITS auto redial time set 00~99 10 OK572 ITS auto redial line disconnection time set 001~999 set 065 OK573 Remote turn-on ring number set 01~99 10 OK
51
KX-FT906HG-B / KX-FT908HG-B
Code Function Set Value Default Remote setting580 TAM continuous tone detection 1:ON/2:OFF ON OK590 FAX auto redial time set 00~99 05 OK591 FAX auto redial line disconnection time set 001~999 065 OK592 CNG transmit select 1:OFF/2:ALL/3:AUTO ALL OK593 Time between CED and 300 bps 1:75/2:500/3:1s 75 ms OK594 Overseas DIS detection select 1:1st/2:2nd 1st OK595 Receive error limit value set 001~999 100 OK596 Transmit level set 15~00 10 OK598 Receiving Sensitivity 20~48 42 OK710 Memory clear except History data --------- --------- NG717 Transmit speed select 1:9600/2:7200/3:4800/4:2400bps 9600bps OK718 Receive speed select 1:9600/2:7200/3:4800/4:2400bps 9600bps OK719 Ringer off in TEL/FAX mode 1:ON/2:OFF ON OK721 Pause tone detect 1:ON/2:OFF ON OK722 Redial tone detect 1:ON/2:OFF ON OK731 CPC mode 1:A / 2:B / 3:OFF A OK763 Friendly reception CNG detection select 1:10S/2:20S/3:30S 20S OK771 T1 timer 1:35 sec/2:60 sec 60 sec OK774 T4 timer 00~99 X 100ms 00 OK775 Monitoring of message transfer 1:ON/2:OFF OFF OK815 Sensor check Press "START". --------- NG841 Digital SP-Phone RX & TX check 1: SP-Phone --------- NG874 DTMF ON time 060~200 ms 090ms OK875 DTMF OFF time 060~200 ms 090ms OK882 Journal 3 1: START --------- NG991 Transmit basic list 1: START --------- OK992 Transmit advanced list 1: START --------- OK994 Transmit journal report 1: START --------- OK999 Transmit service list 1: START --------- OK
OK : Can set the value by the remote programming feature or print a list.
NG : Cannot set the value.
Note:
Note: Refer to SERVICE FUNCTION TABLE (P.46) for descriptions of the individual codes.
For example, the "004 Transmission report mode" set value "1:ERROR/2:ON/3:OFF" number corresponds to the numberdialled.
52
KX-FT906HG-B / KX-FT908HG-B
7.4.5. USER MODE (The list below is an example of the SYSTEM SETUP LIST the unitprints out.)
7.4.5.1. KX-FT906HG-B
Note:
The above values are the default values.
53
KX-FT906HG-B / KX-FT908HG-B
7.4.5.2. KX-FT908HG-B
Note:
The above values are the default values.
54
KX-FT906HG-B / KX-FT908HG-B
7.4.6. SERVICE MODE SETTINGS (Example of a printed out list)
7.4.6.1. KX-FT906HG-B
55
KX-FT906HG-B / KX-FT908HG-B
7.4.6.2. KX-FT908HG-B
56
KX-FT906HG-B / KX-FT908HG-B
7.5. TROUBLESHOOTING DETAILS
7.5.1. OUTLINE
Troubleshooting guide provides a logical path of deduction to assist in locating a fault and suggests methods of restoring the unitto full working condition. Use the reported symptoms of the fault to determine the best troubleshooting method. Even difficult faultscan be tracked to a specific block or area, for example, the "Digital Board" or "Image Sensor".A variety of fault descriptions from customers often point to the same area and, for this reason, careful analysis of the reported
symptoms is required. After every repair, test all functions to ensure no problems are evident.
7.5.2. STARTING TROUBLESHOOTING
Select the appropriate troubleshooting method according to the symptoms.
CROSS REFERENCE:
SIMPLE CHECK LIST (P.58)
DIGITAL BOARD SECTION (P.88)
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KX-FT906HG-B / KX-FT908HG-B
7.5.3. TROUBLESHOOTING ITEMS TABLE
FUNCTION SYMPTOM REFERENCEPrinting Skewed receiving image See SKEWED RECEIVING IMAGE (P.64)
Expanded print See EXPANDER PRINT (WHEN PRINTING) (P.65)Image is distorted See IMAGE IS DISTORTED (WHEN PRINTING) (P.63)Black or White vertical lines appear. See BLACK OR WHITE VERTICAL LINES APPEAR (P.64)
ADF(Auto Document Feeder)
No feed See NO DOCUMENT FEED (P.59)Paper jam See DOCUMENT JAM (P.60)Multiple feed See MULTIPLE FEED (P.61)Skew See SKEW (P.62)
Abnormal mechanical sound Abnomal sound from the product See WHEN COPYING OR PRINTING, AN ABNORMAL SOUNDIS HEARD FROM THE UNIT (P.65)
Power supply Voltage output is abnormal. See POWER SUPPLY BOARD SECTION (P.102)Operation panel keys are not accepted. See OPERATION BOARD SECTION (P.105)
Sensor If the electric circuit is the cause, “REMOVEDOCUMENT” will be displayed.
See SENSOR SECTION (P.106)
CommunicationFAX, TEL
(Analog/Digital board)
Cannot communicate by fax. See DEFECTIVE ITS (INTEGRATED TELEPHONE SYSTEM)SECTION (P.101)
Error code is displayed. See HOW TO OUTPUT THE JOURNAL REPORT: (P.77)Cannot talk. See ANALOG BOARD SECTION (P.99)DTMF tone doesn’t work.Handset/Monitor sound, volume
7.5.3.1. SIMPLE CHECK LIST
SERIAL NO. DATEFUNCTION JUDGEMENT REFERENCE
FAX operation Transmission OK / NG
Receiving OK / NG
Copy operation FINE mode OK / NG
PHOTO mode OK / NG
Telephone operation Handset transceiver / receiver OK / NG
Monitor sound OK / NG
Ringer sound OK / NG
Dial operation OK / NG
Volume operation OK / NG
Operation Panel Key check OK / NG Service code #561(Refer to TEST FUNCTIONS (P.48).)
LCD check OK / NG Service code #558(Refer to TEST FUNCTIONS (P.48).)
LED check OK / NG Service code #557(Refer to TEST FUNCTIONS (P.48).)
Sensor Sensor check OK / NG Service code #815(Refer to TEST FUNCTIONS (P.48).)
Clock OK / NG Is the time kept correctly?Check with another clock.
External Telephone Handset transceiver/receiver OK / NG
Remote control OK / NG Change to FAX receiving by pressing * 9.(Refer to code no. 041.on PROGRAM MODETABLE (P.51).)
Note:
• • • • Check according to the sevvice code referring to the TEST FUNCTIONS (P.48).
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KX-FT906HG-B / KX-FT908HG-B
7.5.4. ADF (AUTO DOCUMENT FEED) SECTION
7.5.4.1. NO DOCUMENT FEED
CROSS REFERENCE:
DIGITAL BOARD SECTION (P.88)
POWER SUPPLY BOARD SECTION (P.102)
SENSOR SECTION (P.106)
TEST FUNCTIONS (P.48)
DISASSEMBLY INSTRUCTIONS (P.27)
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KX-FT906HG-B / KX-FT908HG-B
7.5.4.2. DOCUMENT JAM
CROSS REFERENCE:
SENSOR SECTION (P.106)
DISASSEMBLY INSTRUCTIONS (P.27)
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KX-FT906HG-B / KX-FT908HG-B
7.5.4.3. MULTIPLE FEED
When using thick paper etc., If the document will not feed.
CROSS REFERENCE:
DISASSEMBLY INSTRUCTIONS (P.27)
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KX-FT906HG-B / KX-FT908HG-B
7.5.4.4. SKEW
CROSS REFERENCE:
DISASSEMBLY INSTRUCTIONS (P.27)
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KX-FT906HG-B / KX-FT908HG-B
7.5.4.5. IMAGE IS DISTORTED (WHEN PRINTING)
CROSS REFERENCE:
READ SECTION (P.106)
THERMAL HEAD SECTION (P.108)
TEST FUNCTIONS (P.48)
DISASSEMBLY INSTRUCTIONS (P.27)
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KX-FT906HG-B / KX-FT908HG-B
7.5.4.6. BLACK OR WHITE VERTICAL LINES APPEAR
CROSS REFERENCE:
DIGITAL BOARD SECTION (P.88)
TEST FUNCTIONS (P.48)
7.5.4.7. SKEWED RECEIVING IMAGE
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KX-FT906HG-B / KX-FT908HG-B
7.5.4.8. EXPANDER PRINT (WHEN PRINTING)
CROSS REFERENCE:
DISASSEMBLY INSTRUCTIONS (P.27)
7.5.4.9. WHEN COPYING OR PRINTING, AN ABNORMAL SOUND IS HEARD FROM THEUNIT
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KX-FT906HG-B / KX-FT908HG-B
CROSS REFERENCE:
DISASSEMBLY INSTRUCTIONS (P.27)
7.5.5. COMMUNICATION SECTION
Find the problem in the table shown below, and refer to the corresponding troubleshooting procedure in DEFECTIVEFACSIMILE SECTION (P.67).
No. Symptom Content Possible cause1 The paper is not fed properly when faxing.
(Copying is also not possible.)Troubleshooting Problem with the feeding
mechanism.2 The fax usually transmits successfully but sometimes
fails. (Copying is possible.)Troubleshooting Problem with the service line or
with the receiver´s fax.3 The fax receives successfully one time and fails another.
(Copying is possible.)Troubleshooting Problem with the service line or
with the transmitter´s fax.4 The fax completely fails to transmit or receive.
(The unit can copy documents.)Troubleshooting Problem with the electric circuit.
5 The fax fails either to transmit or receive when making along distance or an international call.(The unit can copy documents.)
Detailed description of thepossible causes (Similar totroubleshooting items No.2and No.3.)
Problem with the service line.
6 No.1-No.5 The troubleshootingprocedure for each errorcode will be printed on thecommunication resultreport.
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KX-FT906HG-B / KX-FT908HG-B
Refer to TRANSLATION LISTS (P.3)
7.5.5.1. DEFECTIVE FACSIMILE SECTION
7.5.5.1.1. TRANSMIT PROBLEM
CROSS REFERENCE:
ADF (AUTO DOCUMENT FEED) SECTION (P.59)
OPERATION BOARD SECTION (P.105)
67
KX-FT906HG-B / KX-FT908HG-B
Refer to TRANSLATION LISTS (P.3)
7.5.5.1.2. SOMETIMES THERE IS A TRANSMIT PROBLEM
68
KX-FT906HG-B / KX-FT908HG-B
7.5.5.1.3. RECEPTION PROBLEM
Confirm the following before starting troubleshooting.Is the recording paper installed properly?
There is the receiving problem when sometimes the below errors may be occurred.
OUT OF PAPERCHHECK COVERUNIT OVERHEATED (If it doesn´t return automatically, COVER OPEN, etc., reset the unit.)CHECK DOCUMENT
Please refer to USER RECOVERABLE ERRORS (P.43) for the above items.Also, when a hardware deformity occurs, please check each sensor.
69
KX-FT906HG-B / KX-FT908HG-B
7.5.5.1.4. THE UNIT CAN COPY, BUT CANNOT TRANSMIT/RECEIVE
70
KX-FT906HG-B / KX-FT908HG-B
7.5.5.1.5. UNIT CAN COPY, BUT CANNOT TRANSMIT/RECEIVE LONG DISTANCE ORINTERNATIONAL COMMUNICATIONS
The following 2 causes can be considered for this.
Cause 1:
The other party is executing automatic dialling, the call has been received by this unit, and the CED or DIS signal responsetime is too long. (In most cases, this unit detects the CNG signal and can respond to the CED or DIS.) (According to the ITU-T standard, the communication procedure is stopped when there is no response from the other party within 35 sec, so thatthe other party releases the line.)
(Cause and Countermeasure)
As shown in the chart above, the total handshaking time must be reduced. Long distance connection and linking of severalstations means the line connection time cannot be reduced. Accordingly, the following countermeasures should be attempted.(A) The TEL/FAX DELAYED RING count should be 1. (User parameter: code No. 78)(B) As the 35 sec. count starts directly after dialing or directly after the START button has been pressed for models with aSTART button, the other party should be called manually, if possible.Another possibility is entering two pauses at the end of the auto dial number on the transmission side. Then the count start timewill be delayed for 2 pauses (about 10 sec.).
Cause 2:
Erroneous detection due to an echo or echo canceler.
(Echo/Echo Canceler)
The signal from FAX1 reaches FAX2 via the stations 1 and 2, but the reflection signal at station 2 also returns via station1(echo). As the distance between station 1 and station 2 is far, the echo returns to FAX 1 a max. of 600 msec aftertransmission. There is a possibility that this signal is detected erroneously as the signal from FAX2. For a normal call, there isa possibility that the echo of their own voice will make the call difficult to understand. For this reason, each station (station 1,station 2) attaches echo cancellers (S1, S2) for international lines or long distance lines. For the echo canceller, the level of thetransmission signal from FAX 1 is compared with the level of the reception signal from FAX2. When the S1 is closed and S2is open, so that the echo does not return to FAX1.
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KX-FT906HG-B / KX-FT908HG-B
(Causes and Countermeasures)
Fig. a (Overlapping the Echo of the DIS signal and DCS signal)
Fig. b (Countermeasure by Changing the CED Frequency)
No. Countermeasure Side Echo Communication Problem Example Countermeasure Service Code1 Sending side Some time is needed to compare the level
of the receiving and sending signals for theecho canceler. The header of the trainingsignal lacks due to a switching delay toclose S1.
Add a dummy signal to the beginningof the training signal.
Service code (521)(International mode select)
This countermeasurebecomes the default value.
2 Receiving side The echo canceler function stopsaccording to a CED signal frequency of2100Hz (S1 and S2 are both ON), a DISsignal is returned as an echo, and a DCSsignal from the sending side overlaps theDIS echo. Then the receiving side FAXcannot retrieve the DCS signal.(Refer to Fig. a)
Change to a 1100Hz CED signalfrequency. (Refer to Fig. b)
Service code (520)(CED frequency select)
Receiving side Change the regular rime of 75 msecbetween the CED signal and DIS signalto 500 msec. This will give at least 250msec to recover the echo canceleroperation. (Refer to Fig. c)
Service code (593)(Time between CED and 300
bps)
Sending side The sending side FAX sends a DCSsignal not after receiving the 1st DISsignal but after receiving the 2nd DISsignal. (Refer to Fig. d)
Service code (594)(Overseas DIS detection
select)
3 Sending side Communication failure occurs in a longdistance communication on the telephoneline without an echo canceler.
or
There are some cases (e.g. Mobil comms.)which cause the collision of TX / RX signalsdue to the delay / echo and noise of thenetwork / terminal. (Refer to Fig. e)
Decrease the transmission level from -10 dBm to -15 dBm and the echo levelwill decrease.
Service code (596)(Transmit level set)
4 Sending sideReceiving side
Decrease the receiving sensitivity from-13 dBm to about -32 dBm so an echosignal will not received.
Service code (598)(Receiving sensitivity)
5 Sending sideReceiving side
Set additional Pause time (Servicemode: code No. 774) in between theoriginal and its repeated signals, toprevent the collision of the signals atboth end.
Service code (774)(T4 timer)
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KX-FT906HG-B / KX-FT908HG-B
Fig. c (Countermeasure by Changing the Interval Between CED andDIS)
Fig. d (C3ountemeasure by Ignoring the 1st DIS)
<TX side signal> <RX side signal> <Countermeasure>2nd / 3rd DCS / Training & delayed CFR / FTT at TX side2nd / 3rd EOP / EOM / MPS & delayed MCF / PIP / PIN / RTP / RTN at TX sidedelayed DCS & 2nd / 3rd / --- DIS at RX side
(Fig. e)
7.5.5.1.6. THE UNIT CAN COPY, BUT THE TRANSMISSION AND RECEPTION IMAGE AREINCORRECT
(Long distance or international communication operation)
This symptom highly depends on the transmission and reception capability of the other FAX unit and the line conditions.
The countermeasures for this unit are shown below.
Transmission Operation:
Set the transmitting speed to 4800BPS (service mode: code No. 717) or select the overseas mode.
Reception Operation:
If 80% or more of the reception is incorrect, set the receiving speed to 4800BPS. (Service mode: code No. 718)
• • • • Refer to SERVICE FUNCTION TABLE(P.46).
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KX-FT906HG-B / KX-FT908HG-B
1. Equipment
• • • • 1 jig
• • • • 1 PC (with LINE IN)
• • • • 1 audio cord (mini jack supported)
• • • • 2 tel cords
Parts No. Parts Name &Description
Qt’y
PQJJ1T004Z JACK1, JACK2 2PQJJ1D010Z PIN JACK 1ECQE2155KForECQE2E155KC
CAPACITOR 2
MA4020 DIODE 2
7.5.5.1.7. HOW TO RECORD FAX SIGNAL BY USING PC
Recording FAX signal is one of the useful analysis measures to solve communication problems.
The way of recording easily by using PC is shown as follows.
2. Setting up
FAX SIGNAL RECORDING JIG
3. Connecting PC and JIG
4. PC setting and recording
1. Set LINE IN to be valid in the volume control setting.
Refer to the PC instruction book.
2. Start up the PC software “ SOUND RECORDER”. (This software is bundled to Windows OS, which can create WAV file.)
Set the audio format “ PCM 22.050kHz, 8bit, mono”.
3. Click the record button and start recording after acquisition the signal.
Note:
• • • • Not to be wind wave patterns on the wave monitor.
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KX-FT906HG-B / KX-FT908HG-B
• • • • Please compress the recording data when you send attaching to E-Mail because the data size will be so heavy.
• • • • Any software which can create WAV files is available.
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KX-FT906HG-B / KX-FT908HG-B
1. Equipment
• • • • 1 jig
• • • • 1 PC (with LINE IN)
• • • • 1 audio cord (mini jack supported)
• • • • 2 tel cords
Parts No. Parts Name &Description
Qt’y
PQJJ1T004Z JACK1, JACK2 2PQJJ1D010Z PIN JACK 1ECQE2155KForECQE2E155KC
CAPACITOR 2
MA4020 DIODE 2
7.5.5.1.8. HOW TO RECORD FAX SIGNAL BY USING PC
Recording FAX signal is one of the useful analysis measures to solve communication problems.
The way of recording easily by using PC is shown as follows.
2. Setting up
FAX SIGNAL RECORDING JIG
3. Connecting PC and JIG
4. PC setting and recording
1. Set LINE IN to be valid in the volume control setting.
Refer to the PC instruction book.
2. Start up the PC software “ SOUND RECORDER”. (This software is bundled to Windows OS, which can create WAV file.)
Set the audio format “ PCM 22.050kHz, 8bit, mono”.
3. Click the record button and start recording after acquisition the signal.
Note:
• • • • Not to be wind wave patterns on the wave monitor.
• • • • Please compress the recording data when you send attaching to E-Mail because the data size will be so heavy.
• • • • Any software which can create WAV files is available.
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KX-FT906HG-B / KX-FT908HG-B
Error code table:
Refer to TRANSLATION LISTS (P.3)
TRANS=TRANSMISSION RECEP=RECEPTION
7.5.5.1.9. HOW TO OUTPUT THE JOURNAL REPORT:
1. Press repeatedly until the following is displayed.
2. Press .
3. Press or until the “ JOURNAL REPORT ” is displayed.
4. The report is printed out.
(1) CODE (2) RESULT (3) MODE SYMPTOM Counter-measure*
PRESSED THE STOP KEY SND & RCV Communication was interrupted by the STOP button.DOCUMENT JAMMED SND The document paper is jammed.NO DOCUMENT SND No document paper.PRINTER OVERHEATED RCV The thermal head is overheated.PAPER OUT RCV Out of thermal paper or the cover is open.
28 COMMUNICATION ERROR SND & RCV -40 OTHER FAX NOT RESPOND SND Transmission is stopped when the T1 TIMER expires.41 COMMUNICATION ERROR SND DCN is received after DCS transmission. 142 COMMUNICATION ERROR SND FTT is received after transmission of a 2400BPS training signal. 243 COMMUNICATION ERROR SND No response after post message is transmitted three times. 344 COMMUNICATION ERROR SND RTN and PIN are received. 446 COMMUNICATION ERROR SND No response after FTT is transmitted. 548 COMMUNICATION ERROR SND No post message. 649 COMMUNICATION ERROR SND RTN is transmitted. 750 COMMUNICATION ERROR SND PIN is transmitted (to PRI-Q). 851 COMMUNICATION ERROR SND PIN is transmitted. 852 OTHER FAX NOT RESPOND SND Reception is finished when the T1 TIMER expires. 853 ERROR-NOT YOUR UNIT RCV DCN is received after transmission of NSC and DTC. 954 ERROR-NOT YOUR UNIT RCV DCN is received after transmission of NSC . 1057 COMMUNICATION ERROR SND 300bps error 1158 COMMUNICATION ERROR RCV DCN is received after FTT transmission. 1259 ERROR-NOT YOUR UNIT SND DCN responds to a post message. 1364 COMMUNICATION ERROR SND Polling is not possible. 1468 COMMUNICATION ERROR RCV No response at the other party after MCF or CFR is transmitted. 1570 ERROR-NOT YOUR UNIT RCV DCN is received after CFR transmission. 1372 COMMUNICATION ERROR RCV The carrier is cut when the image signal is received. 13FF COMMUNICATION ERROR SND & RCV Modem error. 12
a. Change the TX speed/RX speed. (Service code: 717/718, refer to SERVICE FUNCTION TABLE (P.46).)
b. Change the transmit level. (Service code: 596, refer to SERVICE FUNCTION TABLE (P.46).)
If the problem remains, see the next page.
77
KX-FT906HG-B / KX-FT908HG-B
Countermeasure
78
KX-FT906HG-B / KX-FT908HG-B
79
KX-FT906HG-B / KX-FT908HG-B
80
KX-FT906HG-B / KX-FT908HG-B
81
KX-FT906HG-B / KX-FT908HG-B
82
KX-FT906HG-B / KX-FT908HG-B
83
KX-FT906HG-B / KX-FT908HG-B
84
KX-FT906HG-B / KX-FT908HG-B
85
KX-FT906HG-B / KX-FT908HG-B
Example:
7.5.6. OTHER
[HISTORY]
No. Display Function1 DATA Date and time which are set by a user for the first time after purchase. TIME is
the expiration from the first power on after purchase.2 KEY OPERATION Indicate 2-digit codes. (Refer toBUTTON CODE TABLE (P.49).1st.50: History
of the key operation from 1st to 50th after purchase. Last.50: History of the last50 key operations.
3 NUMBER of COPY The number of pages copied..4 NUMBER of RX The number of pages received.5 NUMBER of TX The number of pages sent.
CROSS REFERENCE:
BUTTON CODE TABLE (P.49)
7.5.7. SPECIAL SERVICE JOURNAL REPORTS
Journal 3 shown below, which are special journals giving the additional detailed information about the latest 35 communications,can be printed by Service Code 882. Remote printing function for the journal reports (JOURNAL and JOURNAL 3) is alsoavailable for service technicians. (Refer to REMOTE PROGRAMMING (P.50).) The JOURNAL report only gives you basicinformation about a communication, but the JOURNAL 3 report provide different information on the same item (communication).
HOW TO READ JOURNAL REPORTS:
1. Look at NO. 01 in the JOURNAL. If you want to know about the details about that item, see NO. 01 in the JOURNAL 3. Youcan get the following information.
* MODE: Fax transmission* TX SPEED: 9.6 kbps* RESOLUTION: standard* ENCODE: MH* MAKER CODE: 79
For further details, see JOURNAL 3 (P.87).
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KX-FT906HG-B / KX-FT908HG-B
7.5.7.1. JOURNAL 3
Descriptions:
1. ENCODE
Compression Code: MH/MR
2. MSLT
MSLT means Minimum Scan Line Time. Used only at the factory.
3. RESOLUTION (RESOL)
Indicates the resolution of the communication. If multiple pages are transmitted or received, it indicates the last page´sresolution. If there is a communication error, “?” is displayed.
4. SPEED
Indicates the speed of communication. If multiple pages are transmitted or received, it indicates the last page´s communicationspeed. If there is a communication error, “?” is displayed.
5. RCV-TRIG. (CNT.)
Indicates the trigger that causes the unit to switch to the fax receive mode. The available options are listed in JOURNAL 3 in2.4.7.2. PRINTOUT EXAMPLE. The values in parentheses indicate how many times the trigger has been used. (For example,“0003” means three times.)
No. Display Function1 FAX MODE Means the unit received a fax message in the FAX mode.2 MAN RCV Means the unit received a fax message by manual operation.3 FRN RCV Means the unit received a fax message by friendly signal detection.4 RMT DTMF Means the unit detected DTMF (Remote Fax activation code) entered remotely.5 PAL DTMF Means the unit detected DTMF (Remote Fax activation code) entered by a parallel connected telephone.6 TURN-ON Means the unit started to receive after 15 rings. (Remote Turn On: Service Code #573)7 TIME OUT Means the unit started to receive after Ring Time Out in the EXT-TAM or TEL/FAX mode.8 IDENT Means the unit detected Ring Detection.9 TEL/FAX Means the unit detected the CNN while it was sending the Dummy Ring Back Tone in the TEL/FAX mode.
NO RESPONSE DISAPPEARED ON JOURNAL
The “NO RESPONSE DISAPPEARED ON JOURNAL” displays the information about the last 10 communications terminatedby “No Response”. (Some of the communications terminated by “No Response” were not displayed in the JOURNAL.)When afax transmission cannot be performed because the other party´s unit is set to the TEL mode, “No response” will be printed.
6. EQM
EQM means Eye Quality Monitor. Used only at the factory.
7. ERROR LINE(RX)
When an error occurs while receiving a fax, this shows the number of error lines.
8. MAKER CODE
This shows a 2 digit code of the other partyís fax machine brand.
0E: “KX” model00: Unknown79: “UF” model19: “Xerox” model
7.5.7.2. PRINTOUT EXAMPLE
87
KX-FT906HG-B / KX-FT908HG-B
7.5.8. DIGITAL BOARD SECTION
One of most difficult problems to deal with is when the system will not boot up.
The symptom: No response when the power is turned on. (No LCD display, keys are not accepted.)
Note:
1. Electrical continuity may have existed at the factory check, but a faulty contact occurred as a result of vibration, etc.,during transport.
2. Solder waste remaining on the board may get caught under the IC during transport, causing a short circuit.
Before we begin mass production, several hundred trial units are produced at the plant, various tests are applied and anymalfunctions are analyzed. (In past experiences, digital IC (especially SRAM and ROM) malfunctions are extremely rare afterinstallation in the product.)This may be repaired by replacing the IC, (ASIC etc.). However, the real cause may not have been an IC malfunction but asoldering fault instead.Soldering faults which are difficult to detect with the naked eye are common, particularly for an ASIC and RA (Resistor Array).But if you have an oscilloscope, you can easily determine the problem site or IC malfunction by checking the main signal lines.Even if you don´t have such a measuring instrument, by checking each main signal line and resoldering it, in many cases theproblem will be resolved.An explanation of the main signals (for booting up the unit) is below.
What are the main signals for booting up the unit?
Please refer to the DIGITAL BLOCK DIAGRAM (P.89).The ASIC (including the CPU) (IC1) controls all the other digital ICs. When the power is turned on, the ASIC (CPU) retrievesthe operation code stored in the ROM (IC2), then follows the instructions for controlling each IC. All ICs have some innerregisters that are assigned to a certain address.It is the address bus by which the ASIC (CPU) designates the location inside each IC. And the data bus reads or writes the datain order to transmit the instructions from the ASIC (CPU) to the ICs.These signal lines are all controlled by voltages of 5V/3.3V (H) or 0V (L).
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KX-FT906HG-B / KX-FT908HG-B
The signal lines that must be normal for the system to boot upare listed here [List 1].
For signal lines other than these, even if they malfunction theydo not directly affect booting up the system.
7.5.8.1. DIGITAL BLOCK DIAGRAM
89
KX-FT906HG-B / KX-FT908HG-B
90
KX-FT906HG-B / KX-FT908HG-B
Normal Wave Patterns
Remarks:
When you use an oscilloscope to judge whether a signal to be tested is normal or NG, perform the signal check in exactly thesame order as in [List 1]. (If the ASIC fails to access the ROM, the ASIC cannot access SRAM normally.)
The digital circuit actually operates according to the timing combinations of these signals. If the timing of these signals is evenslightly delayed, the circuit will not work. Nor will it if the IC is defective and the output voltage level is not normal although thetiming of these signals is accurate enough to meet the specifications. (Make sure that your oscilloscope is calibrated beforestarting a test.)
Therefore, it is imperative to confirm whether each IC outputs the signal at the correct level. (See the I/O Pin No. Diagram.)The signal level should be constantly output at between 3.3V (H) and 0V (L) as described earlier.
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KX-FT906HG-B / KX-FT908HG-B
Note:
Simply check the output level and make sure if the IC repeatedly outputs the signal at between 3.3V (H) and 0V (L).
I/O and Pin No. Diagram
92
KX-FT906HG-B / KX-FT908HG-B
93
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After the power is turned on, the ASIC (CPU) initializes and checks each IC.
The ROM, SRAM, and Modem are checked.
If initialization fails for the ICs, the system will not boot up.
CROSS REFERENCE:
NG EXAMPLE (P.96)
CHECK THE STATUS OF THE DIGITAL BOARD (P.97)
94
KX-FT906HG-B / KX-FT908HG-B
7.5.8.2. FLASH MEMORY (IC6)
If the unit is working correctly but the TAM fanction can not work, you should check the Flash Memory.
95
KX-FT906HG-B / KX-FT908HG-B
7.5.8.3. NG EXAMPLE
96
KX-FT906HG-B / KX-FT908HG-B
7.5.8.4. CHECK THE STATUS OF THE DIGITAL BOARD
First, please check voltages and oscillation whether they are correct as follows.
97
KX-FT906HG-B / KX-FT908HG-B
98
KX-FT906HG-B / KX-FT908HG-B
7.5.9. ANALOG BOARD SECTION
The analog parts check is actually different from the digital parts check. The signal route is determined by the purpose of thecheck. For example, the handset TX route begins from the handset microphone and is output in the telephone line. In this route,it is mainly an analog signal. Tracing the signal can be done easily using an oscilloscope. Each route is shown on the CHECKSHEET (P.99) here. If there is a problem with the unit (for example, you cannot communicate with the H/S, etc.), trace the signalin the area and determine the cause.
7.5.9.1. CHECK SHEET
Note:
: Inside the digital board[ ]: Inside the operation board
99
KX-FT906HG-B / KX-FT908HG-B
Note:
: Inside the digital board[ ]: Inside the operation board
100
KX-FT906HG-B / KX-FT908HG-B
7.5.9.2. DEFECTIVE ITS (INTEGRATED TELEPHONE SYSTEM) SECTION
101
KX-FT906HG-B / KX-FT908HG-B
7.5.10. POWER SUPPLY BOARD SECTION
1. Key components for troubleshooting
Check the following parts first: F101, D101-D104, C106, Q101, PC101 and IC101.
This comes from our experience with experimental tests. For example: power supply and lightning surge voltage test,withstanding voltage test, intentional short circuit test, etc.
Caution:
If you find a melted fuse in the unit, do not turn on the power until you locate and repair the faulty parts (except for the fuse);
otherwise the fuse will melt again and you cannot pinpoint the faulty point.
In most cases, the symptom is that nothing is output. It is more likely that the fault is in the primary side rather than thesecondary side. Check the primary side first.
102
KX-FT906HG-B / KX-FT908HG-B
2. Troubleshooting Flow Chart
103
KX-FT906HG-B / KX-FT908HG-B
3. Broken parts repair details
(D101, D102, D103, D104)
Check for a short-circuit in terminal 4. If D101, D102, D103 and D104 are short-circuits, F101 will melt (open).
In this case, replace all of the parts (D101, D102, D103, D104, F101).
(Q101)
The worst case of Q101 is a short-circuit between the Drain and Gate because damage expands to the peripheral circuit ofQ101.
This is due to a very high voltage through the Gate circuit which is composed of R128, R109, D106 and IC101.
You should change all of the parts listed as follows.
F101, Q101, R128, R109, D106, IC101
(D201)
If D201 is broken, the oscillation circuit in the power supply cannot operate. Check it with an electric tester.
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KX-FT906HG-B / KX-FT908HG-B
7.5.11. OPERATION BOARD SECTION
7.5.11.1. NO KEY OPERATION
CROSS REFERENCE:
TEST FUNCTIONS (P.48)
7.5.11.2. NO LCD INDICATION
CROSS REFERENCE:
TEST FUNCTIONS (P.48)
105
KX-FT906HG-B / KX-FT908HG-B
Refer to TRANSLATION LISTS (P.3)
Refer to TRANSLATION LISTS (P.3)
7.5.12. SENSOR SECTION
Refer to 6.5. SENSORS AND SWITCHES for the circuit descriptions.
7.5.12.1. CHECK THE DOCUMENT SENSOR (PS1)................."CHECK DOCUMENT"
7.5.12.2. CHECK THE READ POSITION (SW44)................."REMOVE DOCUMENT"
7.5.13. READ SECTION
Refer to SCANNING BLOCK (P.123).
106
KX-FT906HG-B / KX-FT908HG-B
CROSS REFERENCE:
TEST FUNCTIONS (P.48)
107
KX-FT906HG-B / KX-FT908HG-B
7.5.14. THERMAL HEAD SECTION
Refer to THERMAL HEAD (P.121).
CROSS REFERENCE:
SUPERVISION CIRCUIT FOR THE THERMAL HEAD TEMPERATURE (P.118)
THERMAL HEAD (P.121)
108
KX-FT906HG-B / KX-FT908HG-B
8 CIRCUIT OPERATIONS
8.1. CONNECTION DIAGRAM
109
KX-FT906HG-B / KX-FT908HG-B
8.2. GENERAL BLOCK DIAGRAMThe control section will be explained as shown in the block diagram.
1. ASIC (IC1)
Composed mainly of an address decoder, modem control section, CPU and RTC.
Controls the general FAX operations.
Controls the operation panel I/F.
Controls the thermal head I/F and CIS I/F.
Executes image processing.
TAM monitor and the H/S volume.
I/O ports
2. ROM (IC2)
Contains all of the program instructions for unit operations.
3. Static RAM (IC4)
This memory is used mainly for the parameter working storage area.
4. MODEM (IC5)
Modem for the FAX.
5. Read Section
Contact Image Sensor (CIS) to read transmitting documents.
6. Thermal Head
Contains heating elements for dot matrix image printing.
7. Motor driver (IC7)
Drives the motor.
8. Analog board
Composed of an ITS circuit and NCU circuit.
9. Sensor Section
Composed of a document sensor, recording paper sensor, motor position sensors, read position sensor.
10. Power supply switching board section
Supplies +5V and +24V to the unit.
11. FLASH MEMORY (IC6)
Saves TAM voice data.
110
KX-FT906HG-B / KX-FT908HG-B
8.2.1. GENERAL BLOCK DIAGRAM
111
KX-FT906HG-B / KX-FT908HG-B
8.3. CONTROL SECTION
8.3.1. BLOCK DIAGRAMA
0-17
D0-
D7 RD
RO
M4M
bit
A0-
14
D0-
D7 WR
SR
AM
1Mbi
t
RD
RD
WR TX
RX
TX
RX
H/S
RX
SP
-OU
T
TO
OP
ER
AT
ION
PA
NE
L
TO
SP
EA
KE
R
TO
AN
ALO
G B
OA
RD
AN
ALO
G P
OR
TC
ON
TR
OL
KR
XD
, KT
XD
, KLA
TC
H, K
SC
LK, K
ST
AR
T
32.2
56M
Hz
MO
DE
M
64kb
itS
RA
M
PR
INT
ER
CO
NT
RO
LR
TC
TO
NE
AS
IC IC
1
VO
LA
/DIM
AG
EP
RO
CE
SS
ING
MO
TO
RI/F
MO
TO
RD
RIV
ER
IC7
RE
SE
TIC
3
TO
MO
TO
R
T2-
T5
256k
bit
RO
MO
P-P
AN
EL
I/F
OS
C
24M
Hz
CP
U
+24
V
+24
V
+5V
XRESETI
XWDERR
D0-7
A0-17
WR
RDT
O C
IS
TO
T
HE
RM
AL
HE
AD
ST
B1,
2, 3
, TH
LAT
TH
CLK
, TH
DA
T
AN
ALO
GS
WQ
11
FE
T
LED
ON
CLK
, SIG
TH
ON
32.7
68kH
z
Q7
CIS
ON
KX
- F
T90
6/90
8HG
-B D
IGIT
AL
BO
AR
D: B
LOC
K D
IAG
RA
M
SP
-AM
PIC
12
CN
9
IC6
A0-
A12
D0-
D7
WR
FLA
SH
4Mbi
t
RD
IC4
IC2
IC5
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KX-FT906HG-B / KX-FT908HG-B
8.3.2. ASIC (IC1)
This custom IC is used for general FAX operations.
1. CPU
This model uses a Z80 equivalent CPU operating at 8MHz.Many of the peripheral functions are handled by custom designed LSIs. As a result, the CPU only needs to process the result.
2. RTC
Real time clock.
3. DECODER
Decodes the address.
4. ROM/RAM I/F
Controls the SELECT signal of ROM or RAM and bank switching.
5. CIS I/F
Controls document reading.
6. IMAGE DATA RAM
This is inside the ASIC and has 8KB which is used for image processing.
7. THERMAL HEAD I/F
Transmits the recorded data to the thermal head.
8. MOTOR I/F
Controls the motor which feeds the document and feeds the reading document.
9. OPERATION PANEL I/F
Control port for Operation Panel.
10. I/O PORT
I/O Port Interface (for analog board port control).
11. ANALOG BLOCK
Electronic volume for the handset and TAM monitor.Sends beep tones, etc.
Descriptions of Pin Distribution (IC1)
NO. SIGNAL I/O POWER SUPPLIEDVOLTAGE
DESCRIPTION
1 VSSA GND POWER SOURCE (ANALOG GND)2 VDDA 3.3 3.3V POWER SOURCE (ANALOG +3.3V)3 AIN1 A 3.3V CIS IMAGE SIGNAL INPUT (SIG)4 AIN2 A 3.3V THERMISTOR TEMPERATURE WATCH INPUT5 AIN3 A 3.3V LINE VOLTAGE DETECTION SIGNAL INPUT (DCIN)6 AMON A 3.3V ANALOG SIGNAL MONITOR TERMINAL7 VSS GND POWER SOURCE (GND)8 X32OUT O 3.3V/BATT RTC (32.768KHz) CONNECTION9 X32IN I 3.3V/BATT RTC (32.768KHz) CONNECTION
10 VDD (3.3V / B) ----- POWER SOURCE (+3.3V/LITHIUM BATTERY)11 XBACEN I 3.3V/BATT BACKUP ENABLE12 XRAMCS O 3.3V/BATT XRAMCS13 VDD (3.3V / B) ----- POWER SOURCE(+3.3V / LITHIUM BATTERY)14 VDD (2.5V/B) ----- POWER SOURCE (+2.5V / LITHIUM BATTERY)15 FTG O 3.3V SH SIGNAL OUTPUT FOR CIS (SI)16 F1 O 3.3V 01 SIGNAL OUTPUT FOR CIS (CLK)17 F2/OP O 3.3V OUTPUT PORT (CISON)18 FR/OP O 3.3V OUTPUT PORT (MDMRST)19 CPC I 3.3V INPUT PORT (CPC)20 RVN I 3.3V INPUT PORT (CISSEL)21 IRDATXD/IOP I 3.3V INPUT PORT (JAM)22 IRDARXD/IOP80 O 3.3V OUTPUT PORT (HSTX MUTE)23 TXD/IOP I 3.3V INPUT PORT (BELL)24 RXD/IOP I/O 3.3V PORT (TELRXEN)25 XRTS/IOP I 3.3V INPUT PORT (PSHORT)26 XCTS/IOP I/O 3.3V PORT (MDMTXEN)27 VDD (2.5V) ----- POWER SOURCE (+2.5V)28 TONE1 A 3.3V TONE OUTPUT
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KX-FT906HG-B / KX-FT908HG-B
NO. SIGNAL I/O POWER SUPPLIEDVOLTAGE
DESCRIPTION
29 TONE2 A 3.3V TONE OUTPUT30 VOLUREF A 3.3V ANALOG REF VOLTAGE31 VOLUOUT A 3.3V VOLUME OUTPUT32 VOLUIN A 3.3V VOLUME INPUT33 XNMI I 3.3V HIGH FIXED34 FMEMDO/IOP O 3.3V OUTPUT PORT (CIS ON)35 VDD (3.3V) ----- POWER SOURCE (+3.3V)36 VSS GND POWER SOURCE (GND)37 VSS GND POWER SOURCE (GND)38 VDD (3.3V) ----- POWER SOURCE (+3.3V)39 MIDAT/IOP I/O 3.3V PORT (TONE1EN)40 MICLK/IOP O 3.3V OUTPUT PORT (TONE2EN)41 MILAT/IOP I/O 3.3V PORT (HSRXEN)42 20KOSC/IOP O 3.3V OUTPUT PORT (DATA)43 XWAIT I 3.3V INPUT PORT (HOOK)44 HSTRD/IOP I 3.3V INPUT PORT (TEST)45 HSTWR/IOP I/O 3.3V PORT (CD)46 XOPRBE O 3.3V OPEN47 ADR15 O 3.3V CPU ADDRESS BUS 15 (NOT USED)48 ADR14 O 3.3V CPU ADDRESS BUS 14 (NOT USED)49 ADR13 O 3.3V CPU ADDRESS BUS 13 (NOT USED)50 VDD (2.5V) ----- POWER SOURCE (+2.5V)51 XOUT O 3.3V SYSTEM CLOCK (24MHz)52 XIN I 3.3V SYSTEM CLOCK (24MHz)53 VSS GND POWER SOURCE (GND)54 VDD (3.3V) ----- POWER SOURCE (+3.3V)55 XTEST O 3.3V 24MHz CLOCK56 TEST1 I 3.3V HIGH FIXED57 TEST2 I 3.3V HIGH FIXED58 TEST3 I 3.3V HIGH FIXED59 TEST4 I 3.3V HIGH FIXED60 XMDMINT I 3.3V MODEM INTERRUPT61 XMDMCS O 3.3V MODEM CHIP SELECT62 XRAS/IOP I/O 3.3V PORT (SPMUTE)63 XCAS1/IOP I 3.3V INPUT PORT (PAPER)64 XCAS2/IOP I 3.3V INPUT PORT (PDWN)65 XRESCS2 O 3.3V FLASH CHIP SELECT (XRESCS2)66 DB3 I/O 3.3V CPU DATA BUS 367 DB2 I/O 3.3V CPU DATA BUS 268 DB4 I/O 3.3V CPU DATA BUS 469 DB1 I/O 3.3V CPU DATA BUS 170 DB5 I/O 3.3V CPU DATA BUS 571 VDD (3.3V) ----- POWER SOURCE (+3.3V)72 VSS GND POWER SOURCE (GND)73 VSS GND POWER SOURCE (GND)74 VDD (3.3V) ----- POWER SOURCE (+3.3V)75 DB0 I/O 3.3V CPU DATA BUS 076 DB6 I/O 3.3V CPU DATA BUS 677 DB7 I/O 3.3V CPU DATA BUS 778 XROMCS O 3.3V ROM (IC502) CHIP SELECT79 RD O 3.3V CPU RD80 WR O 3.3V CPU WR81 ADR0 O 3.3V CPU ADDRESS BUS 082 ADR1 O 3.3V CPU ADDRESS BUS 183 ADR2 O 3.3V CPU ADDRESS BUS 284 ADR3 O 3.3V CPU ADDRESS BUS 385 ADR4 O 3.3V CPU ADDRESS BUS 486 ADR5 O 3.3V CPU ADDRESS BUS 587 VSS GND POWER SOURCE (GND)88 VDD (2.5V) ----- POWER SOURCE (+2.5V)89 ADR6 O 3.3V CPU ADDRESS BUS 690 ADR7 O 3.3V CPU ADDRESS BUS 791 ADR8 O 3.3V CPU ADDRESS BUS 892 ADR9 O 3.3V CPU ADDRESS 993 ADR10 O 3.3V CPU ADDRESS 1094 ADR11 O 3.3V CPU ADDRESS 11
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KX-FT906HG-B / KX-FT908HG-B
NO. SIGNAL I/O POWER SUPPLIEDVOLTAGE
DESCRIPTION
95 ADR12 O 3.3V CPU ADDRESS 1296 RBA0 O 3.3V ROM/RAM BANK ADDRESS 097 RBA1 O 3.3V ROM/RAM BANK ADDRESS 198 RBA2 O 3.3V ROM/RAM BANK ADDRESS 299 RBA3 O 3.3V ROM/RAM BANK ADDRESS 3100 RBA4 O 3.3V ROM/RAM BANK ADDRESS 4101 RBA5 O 3.3V ROM/RAM BANK ADDRESS 5102 RBA6/IOP96 O 3.3V OUTPUT PORT (NC)103 STB1 O 3.3V STROBE SIGNAL OUTPUT TO THERMAL HEAD104 STB2 O 3.3V STROBE SIGNAL OUTPUT TO THERMAL HEAD105 STB3 O 3.3V STROBE SIGNAL OUTPUT TO THERMAL HEAD106 XRESET I 3.3V RESET INPUT107 VDD (3.3V) ----- POWER SOURCE (+3.3V)108 VSS GND POWER SOURCE (GND)109 VSS GND POWER SOURCE (GND)110 VDD (3.3V) ----- POWER SOURCE (+3.3V)111 XORESET O 3.3V NOT USED112 VDD(5V) ----- POWER SOURCE (+5V)113 VSS GND POWER SOURCE (GND)114 XRESETI I 3.3V RESET INPUT115 WDERR O 3.3V WATCHED ERROR OUTPUT SIGNAL116 THDAT O 3.3V RECORDED IMAGE OUTPUT (XTHDAT)117 THCLK O 3.3V CLOCK OUTPUT FOR DATA TRANSFER (XTHCLK)118 THLAT O 3.3V PULSE OUTPUT FOR DATA LATCH (XTHLAT)119 STBNP I 3.3V INPUT PORT (MOT-POS)120 RM0/IOP O 3.3V MOTOR A PHASE121 RM1/IOP O 3.3V MOTOR B PHASE122 RM2/IOP O 3.3V MOTOR /A PHASE123 RM3/IOP O 3.3V MOTOR /B PHASE124 RXE/IOP O 3.3V MOTOR ENABLE125 TMO O 3.3V OUTPUT PORT (THON)126 VDD (2.5V) ----- POWER SOURCE (+2.5V)127 VSS GND POWER SOURCE (GND)128 TM1/IOP O 3.3V OUTPUT PORT (NC)129 TM2/IOP O 3.3V OUTPUT PORT (CISON)130 TM3/IOP O 3.3V OUTPUT PORT (RLY)131 TXE/IOP I 3.3V INPUT PORT (CUT_POS)132 KSTART O 3.3V OPERATION PANEL CONTROL133 KLATCH O 3.3V OPERATION PANEL CONTROL134 KSCLK O 3.3V OPERATION PANEL CONTROL135 KTXD O 3.3V OPERATION PANEL CONTROL136 KRXD I 3.3V OPERATION PANEL CONTROL137 FMEMCLK/IOP O 3.3V OUTPUT PORT (OPRESET)138 FMEMDI/IOP O 3.3V OUTPUT PORT (DR)139 ADSEL1 O 3.3V CHANNEL SELECT SIGNAL FOR AIN2140 VDDA (2.5V) 2.5V POWER SOURCE (ANALOG +2.5V)141 VREFB A 3.3V A/D CONVERTER´S ZERO STANDARD VOLTAGE
OUTPUT142 VCL A 3.3V ANALOG PART STANDARD VOLTAGE SIGNAL143 VREFT A 3.3V A/D CONVERTER´S FULL SCALE VOLTAGE
OUTPUT144 VSSA GND POWER SOURCE (ANALOG GND)
115
KX-FT906HG-B / KX-FT908HG-B
8.3.3. ROM (IC2)
This 512 KB ROM (OTPROM or MASKROM) has 32 KB of common area and bank area (BK4~BK 63).The capacity of each bank is 8 KB.
The addresses of the common area are from 0000H to 7FFFH, and addresses 8000H to 9FFFH are for the bank area.
8.3.4. RAM (IC4)
This 128 KB RAM has 8 KB of common area and bank area (BK0, BK1).The capacity of each bank is 12 KB.The addresses of the common area are from D000H to EFFFH, and addresses A000H to CFFFH are for the bank area.
8.3.5. RESET CIRCUIT (WATCH DOG TIMER)
The output signal (reset) from pin 4 of the voltage detect IC (IC3) is input to the ASIC (IC1) 114 pin.
1. During a momentary power interruption, a negative reset pulse of 50~70 msec is generated and the system is reset completely.
2. The watch dog timer, built-in the ASIC (IC1), is initialized by the CPU about every 1.5 ms.
When a watch dog error occurs, pin 115 of the ASIC (IC1) becomes low level.
The terminal of the ´WDERR´ signal is connected to the reset line, so the ´WDERR´ signal works as the reset signal.
116
KX-FT906HG-B / KX-FT908HG-B
8.3.6. SRAM and RTC BACK UP CIRCUIT
1. Function
This unit has a lithium battery (BAT1) which works for the RAM (IC4) and Real Time Clock (RTC, Integrated into ASIC:IC1).The user parameter for auto dial numbers, the transmission ID, the system setup date and so on are stored in the RAM (IC4).The RTC continues functioning, even when the power switch is OFF, backed up by a lithium battery.
2. Circuit Operation
When the power is turned ON, power is supplied to RAM (IC4) and RTC (IC1).At this time, the voltage at pin 32 of RAM and pin 14 of RTC (IC1) is +3.3V. When the power is turned OFF, the battery suppliesthe power to RAM and RTC through J1, R48, D3. At that time, the voltage at pin 32 of RAM and pin 14 of IC1 are about +2.5V.When the power is OFF and the +5V and +3.3V voltages decrease, IC3 detects them and LOW is input to pin 114 of IC1. Pin111 of IC1 outputs the reset signals. Pin 32 of RAM (IC4) and pin 11 of IC1 become low, then RAM and RTC (IC1) go into theback up mode, when the power consumption is lower.
117
KX-FT906HG-B / KX-FT908HG-B
8.3.7. SUPERVISION CIRCUIT FOR THE THERMAL HEAD TEMPERATURE
1. Function
The thermistor changes the resistor according to the temperature and uses the thermistor´s characteristics.The output of pin 139 of IC1 becomes a low level.Then when it becomes a high level, it triggers point (A).In point (C), according to the voltage output time, the thermal head´s temperature is detected.
After the thermal head temperature is converted to voltage in (B), it is then changed to digital data in the A/D converter insideIC1. The CPU decides the strobe width of the thermal head according to this value. Therefore, this circuit can keep the thermalhead at an even temperature in order to stabilize the printing density and prevent the head from being overheated.
118
KX-FT906HG-B / KX-FT908HG-B
8.4. FACSIMILE SECTION
8.4.1. IMAGE DATA FLOW DURING FACSIMILE OPERATION
COPY (Fine, Super-Fine, Photo)
1. Line information is read by CIS, via route (1), and is input to IC1.
2. In IC1, the data is adjusted to a suitable level for A/D conversion in the Analog Signal Processing Section, and via route (2)it is input to A/D conversion (8 bit). After finishing A/D conversion, the data is input to the Image Processing Section via route(3). Then via routes (4) and (5), it is stored in RAM as shading data.
3. The draft´s information that is read by CIS is input to IC1 via route (1). After it is adjusted to a suitable level for A/Dconversion via route (2), the draft´s information is converted to A/D (8 bit), and it is input to the Image Processing Section.The other side, the shading data which flows from RAM via routes (6) and (7), is input to the Image Processing Section.After finishing the draft´s information image processing, white is regarded as "0" and black is regarded as "1".Then via routes (4) and (5), they are stored in RAM.
4. The white/black data stored as above is input to the P/S converter via routes (6) and (8).The white/black data converted to serial data in the P/S converter is input to the Thermal Head via route (9) and is printedout on recording paper.
Note:
Standard: Reads 3.85 times/mm
Fine: Reads 7.7 times/mm
Super-Fine: Reads 15.4 times/mm
Transmission
1. Same processing as COPY items 1) - 3).
2. The data stored in RAM of IC1 is output from IC1 via routes (6) and (10), and is stored in the system bus.Via route (11), it is stored in the communication buffer inside RAM (IC4).
3. While fetching data stored in the communication buffer synchronous with the modem, the CPU inputs data to the modemalong route (12).It is converted to serial analog data and forwarded over telephone lines via the NCU Section.
Reception
1. The serial analog image data is received over telephone lines and input to the modem IC (IC5) via the NCU section, whereit is demodulated to parallel digital data. The balance data is sent to the modem. Then the CPU stores the data in thecommunication buffer of RAM (IC4) along route (11).
2. The data stored in RAM (IC4) is decoded by the CPU via route (12), and is stored in RAM by routes (13) and (5).
3. Same processing as COPY item 4).
119
KX-FT906HG-B / KX-FT908HG-B
8.4.2. BLOCK DIAGRAM
120
KX-FT906HG-B / KX-FT908HG-B
8.4.3. THERMAL HEAD
1. Function
This unit utilizes state of the art thermal printer technology.The recording paper (roll paper) is chemically processed. When the thermal head contacts this paper it emits heat momentarily,and black dots (appearing like points) are printed on the paper. If this continues, letters and/or diagrams appear, and the originaldocument is reproduced.
2. Circuit Operation
There are 27 driver ICs aligned horizontally on the thermal head and each one of these ICs can drive 64 heat emitting registers.This means that one line is at a density of 64×27=1728 dots=(8 dots/mm).White/Black (white=0, black=1) data in one line increments is synchronized at IC1 pin 117 (THCLK), and sent from IC1 pin 116(THDAT) to the shift register of the ICs. The shift registers of the 27 ICs are connected in series, and upon the shift of dotincrement 1728, all the shift registers become filled with data, and a latch pulse is emitted to each IC from IC1 pin 118(THLAT).With this latch pulse, all the contents of the shift registers are latched to the latch registers. Thereafter, through theaddition of strobes from the IC1 pins (103 - 105) only black dot locations (=1) among latched data activates the driver, and thecurrent passes to heat the emitting body causing heat emission.Here, the three line strobes, STB1 to STB3, impress at intervals of 9.216 msec, as required for one-line printout.The sequence is shown on the next page. [Moreover, for the strobe width, the thermistor value inside the thermal head is
detected according to IC1 pin 4. (See BLOCK DIAGRAM (P.120).) Depending on that value, the strobe width is recorded inROM (IC2).Accordingly, the strobe width is determined.When the thermal head is not used, the IC1 (125, THON) becomes low, Q3 turns OFF, Q2 turns OFF, and the +24 V powersupply for the thermal head driver is not impressed to protect the IC.
121
KX-FT906HG-B / KX-FT908HG-B
122
KX-FT906HG-B / KX-FT908HG-B
8.4.4. SCANNING BLOCK
The scanning block of this device consists of a control circuit and a contact image sensor made up of a celfoc lens array, an LEDarray, and photoelectric conversion elements.
When an original is inserted and the start button pressed, pin 17 of IC1 goes to a high level and the transistor Q11 turns on andpin 129 of IC1 goes to a low level and the transistor Q7 turns on. This applies voltage to the LED array to light it and the voltage(+3.3V) of CIS turns on. The contact image sensor is driven by each of the FTG-F1 signals output from IC1, and the original imageilluminated by the LED array undergoes photoelectric conversion to output an analog image signal. The analog image signal isinput to the system LSI (IC1) on AIN1 (pin 3 of IC1) and converted into 8-bit data by the A/D converter inside IC1. Then this signalundergoes digital processing in order to obtain a high-quality image.
123
KX-FT906HG-B / KX-FT908HG-B
8.4.5. STEPPING MOTOR DRIVE CIRCUIT
1. Function
One individual stepping motor is used for transmission and reception. It feeds the document or recording paper synchronizedfor reading or printing.
2. Circuit Operation
During motor drive, gate array IC1 pin 124 becomes a high level, and Q4 and Q1 go ON as a result. +24 V is supplied to themotor coil.Stepping pulses are output from gate array IC1, causing driver IC7 to go ON. The motor coil is energized sequentially in 2 phaseincrements or 1-2 phase increments, which causes a 1-step rotation. A 1-step rotation is 0.13mm of recording paper ordocument paper. The timing chart is below.
Stepping Motor Phase PatternFunction Mode Phase Pattern Speed
Copy Fine/Photo 1-2 432 ppsSuper Fine 1-2 216 pps
FAX STD 2 432 ppsFine/Photo 1-2 432 ppsSuper Fine 1-2 216 pps
——— Paper Feed 2 432 pps
When the motor is OFF, gate array IC1 pin 124 becomes a low level and Q4 and Q1 also turns OFF. Instead of +24V, +5V issupplied through D1 so that the motor is held in place.
124
KX-FT906HG-B / KX-FT908HG-B
8.4.6. GEAR SECTION
This section shows how the motor-driven gear mechanism works in the main operations: FAX transmission, FAX reception themotor and copying.
8.4.6.1. MODE SELECTION
When the motor attached to the Drive Motor Gear rotates counterclockwise (CCW), Swing Gear A engages the CAM and the CAMturns counterclockwise to select a mode. (See Fig. A.) There are three mode options controlled by the Switch: A: Transmit mode,B: Receive mode and C: Copy mode. In Fig. B, you can see which mode is selected by the position of the rib in the CAM.
125
KX-FT906HG-B / KX-FT908HG-B
8.4.6.2. MODE OPERATION
Once a mode is selected, the Drive Motor Gear rotates clockwise (CW) and then the Swing Gear A-1 controls the mode operation.
A: Transmit mode
Swing Gear A-1 engages G6 and conveys its drive power to the Separation Roller Gear for pre-feeding documents.
B: Receive mode
Swing Gear B engages G8 and conveys its drive power to the Platen Roller Gear for printing the received data.
C: Copy mode
Swing Gear A-1 and B engage Gears 6 and 8 respectively and drive both the Separation Roller Gear and the Platen Roller Gearfor feeding documents and recording paper in the copying operation.
8.4.6.3. MECHANICAL MOVEMENTS IN THE MAIN OPERATIONS
8.4.6.3.1. IDLE STATUS
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KX-FT906HG-B / KX-FT908HG-B
8.4.6.3.2. SCANNING
CROSS REFERENCE:
SENSOR SECTION (P.106)
8.4.6.3.3. PRINTING
Note:
See SENSORS AND SWITCHES (P.129)
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KX-FT906HG-B / KX-FT908HG-B
8.4.6.3.4. COPYING
CROSS REFERENCE:
SENSOR SECTION (P.106)
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KX-FT906HG-B / KX-FT908HG-B
All of the sensors and switches are shown below.
8.5. SENSORS AND SWITCHES
Sensor CircuitLocation
Sensor Sensor or Switch Name Message Error
DIGITAL CN5 Motor Position [CALL SERVICE 2]CN6 Cutter Position [PAPER JAMED]
ANALOG SW1 Cover Open and Paper set [CHECK COVER] and [OUT OF PAPER]SW2 Hook SW ————SW3 JAM set [PAPER JAMED]
Operation Panel SW44 Document Read Position [REMOVE DOCUMENT]PS1 Document set [CHECK DOCUMENT]
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KX-FT906HG-B / KX-FT908HG-B
8.5.1. MOTOR POSITION SENSOR
This sensor is a detection switch for recording the position of the CAM.
Digital BoardSignal (IC1-119 Pin)
Home position Low levelOther High level
8.5.2. CUTTER POSITION SENSOR
Digital BoardSignal (IC1-131 Pin)
Home position Low levelOther High level
8.5.3. RECORDING PAPER SENSOR (SW1)
When there is no recording paper, the plate is separated from the switch lever and the switch turns off. Pin 63 of IC1 becomes ahigh level. When there is recording paper, the plate pushes the switch lever and the switch turns ON. Pin 63 of IC1 becomes a lowlevel.
Analog BoardSignal (IC1-63 Pin)
Paper Low levelNo paper High level
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KX-FT906HG-B / KX-FT908HG-B
8.5.4. HOOK SWITCH (SW2)
When the handset is lifted, the switch turns ON, and the signal at pin 43 of IC1 becomes low.
When the handset is returned, the switch turns OFF, and the signal at pin 43 of IC1 becomes high.
Digital BoardSW Signal
ON-Hook OFF High level (IC1-43 pin)OFF-Hook ON Low level
8.5.5. JAM SENSOR (SW3)
The JAM sensor is a detection switch for determining whether the recording paper edge is in the correct position or not. If therecording paper cannot be detected correctly at the JAM sensor position even when recording paper is present, then JAM isdisplayed. If the recording paper is at the sensor position, then the switch turns on the IC1-21pin switches to a high level.
Analog BoardSignal (IC1-21 Pin)
Paper Low levelNo paper High level
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KX-FT906HG-B / KX-FT908HG-B
8.5.6. DOCUMENT TOP SW (SW44)
When a document is brought to the read position, the SW becomes ON, and the input signal of IC1-16 pin (Operation) becomesa low level. When there is no document at the read position, the SW becomes OFF, and the input signal of IC1-16 pin (Operation)becomes a high level.
Operation BoardSignal (IC1-16 pin)
Out of the Read Position High levelAt the Read Position Low level
8.5.7. DOCUMENT SET SENSOR (PS1)
When a document is set, the shelter plate closes the sensor light, the photo transistor becomes OFF, and the input signal of theIC1-15 pin (Operation) becomes a high level. When there is no document, the shelter plate passes the sensor light, the phototransistor becomes ON, and the input signal of the IC1-15 pin (Operation) becomes a low level. (When checking this sensor, theIC1-41 pin becomes a low level.)
Operation BoardPhoto transistor Signal (IC1-15 Pin)
No document ON Low levelSet document OFF High level
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KX-FT906HG-B / KX-FT908HG-B
8.6. MODEM SECTION
8.6.1. FUNCTION
The unit uses a 1 chip modem (IC5), enabling it to act as an interface between the control section for FAX sending andreceiving, and the telephone line. During a sending operation, the digital image signals are modulated and sent to the telephoneline. During a receiving operation, the analog image signals which are received via the telephone line are demodulated andconverted into digital image signals. The communication format and procedures for FAX communication are standardized byITU-T. This 1 chip modem (IC5) has hardware which sends and detects all of the necessary signals for FAX communication andDTMF.It can be controlled by writing commands from the ASIC (IC1) to the register in the modem (IC5).
This modem (IC5) also sends DTMF signals, and detects busy tones, dial tones and DTMF.
Overview of Facsimile Communication Procedures (ITU-T Recommendation):
1. ON ITU-T (International Telecommunications´ Union.)
The No. XIV Group of ITU-T, one of the four permanent organizations of the International Telecommunications Uniib (ITU),investigates and make recommendations on international standards for facsimiles.
2. Definition of Each Group
• • • • Group I (G1)
A-4 size documents without using formats which reduce the band width of a signal sent over telephone lines.Determined in 1968.Transmission for about 6 minutes at scanning line density of 3.85 lines/mm.
• • • • Group II (G2)
Using reduction technology in the modulation/demodulation format, an A-4 size document is sent at an official scanning linedensity of 3.85 lines/mm for about 3 minutes.Methods to suppress redundancy are not used.Determined in 1976.
• • • • Group III (G3)
A method of suppressing redundancy in the image signal prior to modulation is used. An A-4 size document is sent withabout one minute.Determined in 1980.
• • • • Group IV (G4)
Transmission is via the data network. A method is provided for suppressing redundancy in signals prior to transmission, anderror-free reception of transmission is possible.The scope of these facsimile applications is not limited simply to transmission of written statements. Through symbioticlinkages with other communication methods, it can be expected to expand to include integrated services.
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KX-FT906HG-B / KX-FT908HG-B
3. Facsimile Call Time Series
As shown in the following diagram, the facsimile call time series is divided into five phases.
Phase A : Call setting
Call setting can be manual/automatic.
Phase B : Pre-message procedure
Phase B is a pre-processing procedure and sequence for confirming the status of the terminal, transmission route, etc. and forterminal control. It implements the terminal preparation status, determines and displays terminal constants, confirmssynchronization status, etc. and prepares for transmission of facsimile messages.
Phase C : Message transmission
Phase C is the procedure for transmitting facsimile messages.
Phase D : Post message procedure
Phase D is the procedure for confirming that the message is completed and received. For continuous transmission, phase Bor phase C are repeated for transmission.
Phase E : Call retrieval
Phase E is the procedure for call retrieval, that is for circuit disconnection.
4. Concerning Transmission Time
Transmission Time = Control Time + Image Transmission Time + Hold Time
Transmission time consists of the following.
Control time:
This is time at the start of transmission when the functions at the sending and receiving sides are confirmed, thetransmission mode is established, and transmission and reception are synchronized.
Image transmission time:
This is the time required for the transmission of document contents (image data). In general, this time is recorded in thecatalog, etc.
Hold time:
This is the time required after the document contents have been sent to confirm that the document was in fact sent, and tocheck for telephone reservations and/or the existence of continuous transmission.
5. Facsimile Standards
ItemTelephone Network Facsimile
G3 MachineConnection Control Mode Telephone Network Signal ModeTerminal Control Mode T. 30 BinaryFacsimile Signal Format DigitalModulation Mode PSK (V. 27 ter) or QAM (V. 29)Transmission Speed 300 bps (Control Signal)
2400, 4800, 7200, 9600 bps (FAX Signal)Redundancy CompressionProcess(Coding Mode)
1 dimension: MH Mode2 dimension: MR Mode (K=2.4)
Resolution Main Scan: 8 pel/mmSub Scan: 3.85, 7.7l/mm
Line Synchronization Signal EOL Signal1 Line Transmission Time[ms/line]
Depends on the degree of data reduction.Minimum Value: 10, 20Can be recognized in 40ms.
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KX-FT906HG-B / KX-FT908HG-B
6. Explanation of Technology
a. G3 Communication Signals (T. 30 Binary Process)
For G3 facsimile communication, this is the procedure for exchanging control signals between the sending and receivingmachines both before and after transmission of image signals.Control signals at 300 bps FSK are: 1850 Hz...0, 1650Hz...1.An example of the binary process in G3 communication is shown below.
Explanation of Signals
Control signals are comprised mainly of 8-bit identification signals and of the data signals added to them. Data signals areadded to DIS and DCS signals.
Signal.....DIS (Digital Identification Signal)Identification Signal Format.....00000001
Function:Notifies the capacity of the receiving unit. The added data signals are as follows.
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KX-FT906HG-B / KX-FT908HG-B
(Example)
Bit No. DIS/DTC DCS1 Transmitter - T.2 operation2 Receiver - T.2 operation Receiver - T.2 operation3 T.2 IOC = 176 T.2 IOC = 1764 Transmitter - T.3 operation5 Receiver - T.3 operation Receiver - T.3 operation6 Reserved for future T.3 operation features.7 Reserved for future T.3 operation features.8 Reserved for future T.3 operation features.9 Transmitter - T.4 operation
10 Receiver - T.4 operation Receiver - T.4 operation11, 12(0, 0)(0, 1)(1, 0)(1, 1)
Data signaling rateV.27 ter fall back modeV.27 terV.29V.27 ter and V.29
Data signaling rate2400 bit/s, V.27 ter4800 bit/s, V.27 ter9600 bit/s, V.297200 bit/s, V.29
13 Reserved for the new modulation system.14 Reserved for the new modulation system.15 Vertical resolution = 7.7 line/mm Vertical resolution = 7.7 line/mm16 Two-dimensional coding capability Two-dimensional coding
17, 18(0, 0)
(0, 1)
(1, 0)
(1, 1)
Recording width capabilities1728 picture elements along scan line length of215 mm ± 1%1728 picture elements along scan line length of215 mm ± 1% and2048 picture elements along scan line length of255 mm ± 1% and2432 picture elements along scan line length of303 mm ± 1%1728 picture elements along scan line length of215 mm ± 1% and2048 picture elements along scan line length of255 mm ± 1%Invalid
Recording width1728 picture elements along scan line length of215 mm ± 1%2432 picture elements along scan line length of303 mm ± 1%
2048 picture elements along scan line length of255 mm ± 1%
Invalid19, 20(0, 0)(0, 1)(1, 0)(1, 1)
Maximum recording length capabilityA4 (297 mm)UnlimitedA4 (297 mm) and B4 (364 mm)Invalid
Maximum recording lengthA4 (297 mm)UnlimitedB4 (364 mm)Invalid
Signal.....DCS (Digital Command Signal)Identification Signal Format.....X1000001
Function:Notifies the capacity of the receiving machine obtained at DIS and announces the transmission mode of the sender. The addeddata signals are as follows.
(Example)
Bit No. DIS/DTC Standard setting DCS21, 22, 23(0, 0, 0)(0, 0, 1)(0, 1, 0)(1, 0, 0)(0, 1, 1)(1, 1, 0)(1, 0, 1)(1, 1, 1)
Minimum scan line time capability of the receiver20 ms at 3.85 l/mm: T7.7 = T3.8540 ms at 3.85 l/mm: T7.7 = T3.8510 ms at 3.85 l/mm: T7.7 = T3.855 ms at 3.85 l/mm: T7.7 = T3.8510 ms at 3.85 l/mm: T7.7 = 1/2 T3.8520 ms at 3.85 l/mm: T7.7 = 1/2 T3.8540 ms at 3.85 l/mm: T7.7 = 1/2 T3.850 ms at 3.85 l/mm: T7.7 = T3.85
Minimum scan line time20 ms40 ms10 ms5 ms
0 ms24 Extend field 1 Extend field25 2400 bit/s handshaking 0 2400 bit/s handshaking26 Uncompressed mode 0 Uncompressed mode27 Error correction mode 0 Error correction mode28 Set to "0". 0 Frame size 0 = 256 octets 1 = 64 octets29 Error limiting mode 0 Error limiting mode30 Reserved for G4 capability on PSTN 0 Reserved for G4 capability on PSTN31 Unassigned 032 Extend field 1 Extend field33(0)(1)
Validity of bits 17, 18Bits 17, 18 are validBits 17, 18 are invalid
0 Recording widthRecording width indicated by bits 17, 18Recording width indicated by this field bitinformation
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KX-FT906HG-B / KX-FT908HG-B
Bit No. DIS/DTC Standard setting DCS34 Recording width capability 1216 picture elements along
scan line length of 151 ± mm 1%0 Middle 1216 elements of 1728 picture elements
35 Recording width capability 864 picture elements alongscan line length of 107 ± mm 1%
0 Middle 864 elements of 1728 picture elements
36 Recording width capability 1728 picture elements alongscan line length of 151 ± mm 1%
0 Invalid
37 Recording width capability 1728 picture elements alongscan line length of 107 ± mm 1%
0 Invalid
38 Reserved for future recording width capabilities. 039 Reserved for future recording width capabilities. 040 Extend field 1 Extend field41 Semi super time / mm 142 Semi super time / mm 043 Super time 044 Inch 045 mm 146 MSC/SF 047 Select Polling 048 EXT 0
Note 1 - Standard facsimile units conforming to T.2 must have the following capability: Index of cooperation (IOC)=264.
Note 2 - Standard facsimile units conforming to T.3 must have the following capability: Index of cooperation (IOC)=264.
Note 3 - Standard facsimile units conforming to T.4 must have the following capability: Paper length=297 mm.
Signal Identification Signal Format FunctionTraining 1 ——————— A fixed pattern is transmitted to the receiving side at a speed
(2400 to 9600 bps) designated by DCS, and the receiving sideoptimizes the automatic equalizer, etc., according to this signal.
TCF(Training Check)
——————— Sends 0 continuously for 1.5 seconds at the same speed as thetraining signal.
CFR(Confirmation to Receive)
X0100001 Notifies the sending side that TCF has been properly received. IfTCF is not properly received, FTT (Failure To Train) X0100010 isrelayed to the sender. The sender then reduces the transmissionspeed by one stage and initiates training once again.
Training 2 ——————— Used for reconfirming the receiving side like training 1.Image Signal Refer to the next page. ———————RTC(Return to Control)
——————— Sends 12 bits (0...01 × 6 times) to the receiver at the same speedas the image signal and notifies completion of transmission of thefirst sheet.
EOP(End of Procedure)
X1110100 End of one communication
MCF(Message Confirmation)
X0110001 End of 1 page reception
DCN(Disconnect)
X1011111 Phase E starts.
MPS(Multi-Page Signal)
X1110010 Completion of transmission of 1 page. If there are still moredocuments to be sent, they are output instead of EOP. After MCFreception, the sender transmits an image signal of the secondsheet.
PRI-EOP(Procedural Interrupt-EOP)
X1111100 If there is an operator call from the sender, it is output after RTC.
PIP(Procedural Interrupt Positive)
X0110101 This is output when an operator call is received.
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KX-FT906HG-B / KX-FT908HG-B
b. Redundancy Compression Process Coding ModeThis unit uses one-dimensional MH format.
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KX-FT906HG-B / KX-FT908HG-B
8.6.2. MODEM CIRCUIT OPERATION
The modem (IC5) has all the hardware satisfying the ITU-T standards mentioned previously.
When the ASIC IC1 (61) is brought to a low level, the modem (IC5) is chip-selected and the resistors inside IC are selected by theselect signals from ASIC (IC1) ADR0-ADR4. The commands are written through the data bus, and all the processing is controlledby the ASIC (IC1) according to ITU-T procedures. The INT signal dispatched from IRQ1, 2 (pins 108 and 121 of IC5) to ASIC (IC1)when the transmission data is accepted and the received data is demodulated, the ASIC (IC1) implements post processing. Thismodem (IC5) has an automatic application equalizer.
With training signal 1 or 2 during G3 reception, it can automatically establish the optimum equalizer. The modem (IC5) operatesusing the 32.256 MHz clock (X3).
1. Facsimile Transmission
The digital image data on the data bus is modulated in the modem (IC5), and sent from pin 69 via analog SW (IC10) and theNCU section to the telephone line.
Refer to CHECK SHEET (P.99)
2. Facsimile Reception
The analog image data which is received from the telephone line passes through the NCU section and enters pin 60 of themodem (IC5). The signals that enter pin 60 of the modem (IC5) are demodulated in the board to digital image signals, thenplaced on the data bus.
In this case, the image signals from the telephone line are transmitted serially. Hence, they are placed on the bus in 8 bit units.Here, the internal equalizer circuit reduces the image signals to a long-distance receiving level.
This is designed to correct the characteristics of the frequency band centered about 3 kHz and maintain a constant receivingsensitivity. It can be set in the service mode.
Refer to CHECK SHEET (P.99)
3. DTMF Transmission (Monitor tone)
The DTMF signal generated in the modem (IC5) is output from pin 69, and is then sent to the circuit on the same route as usedfor facsimile transmission.
Refer to CHECK SHEET (P.99)
(DTMF Monitor Tone)
Refer to CHECK SHEET (P.99)
4. Busy/Dial Tone Detection
The path is the same as FAX receiving. When it is detected, the carrier detect bit of the register in the modem (IC5) becomes1, and this status is monitored by the ASIC (IC1).
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KX-FT906HG-B / KX-FT908HG-B
8.7. ANALOG UNIT BLOCK DIAGRAM
+ -
+
-
+ -
+ -+ -
+ -
PA
PE
RR
LY
SP
MU
TE
5VA
5VA
5VA
24V
5VD
PC
4
RLY
1S
A1
SA
2
PC
2
T2
5VD
CDIC
121
FC
22
FC
13
VIN
V02
GN
D
VC
C
V01
4
8 7 6 5
5VA
2.0V
Ref
12V
2V
24V
A
TO
NE
2
PA
PE
R
5VD
+24
V
HO
OK
H/S
RX
TE
L R
X E
NB
HO
OK
5VD
H/S
RX
EN
B
MD
M T
X E
NB
TO
NE
1 E
NB
Ana
log
Dig
ital
LIN
E R
X
TO
NE
1
VO
LOU
TA
SIC
IC1
VO
LIN
SP
KR
M
SP
KR
P
LIN
EO
UT
SIA
IC5
2.0V
MIC
-
CN
3
SP
CN
9
SP
+H
/SS
P-
MIC
+
IC2
IC10
Ref
LIN
EIN
MIC
M
MIC
P
5VA
5V
Q1
OP
-PA
NE
L
MIC
24V
12V
24V
Ref
SP
KR
M
SP
KR
P
LIN
EO
UT
PIA
MIC
RE
F
LIN
EIN
MIC
M
MIC
P
12V
IC3
+
-
+ -
+ -
Line
CN
4
CP
C
BELL
JAM
JAM
5VD
+ ~
- ~+ -
H/S
TX
MU
TE
2V
RLY
KX
-FT
906/
908H
G-B
AN
ALO
G B
OA
RD
: BLO
CK
DIA
GR
AM
+ -
NC
EX
TT
EL
CN
5
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KX-FT906HG-B / KX-FT908HG-B
8.8. NCU SECTION
8.8.1. GENERAL
This section is the interface between the telephone line. It is composed of bell detection circuit, pulse dialing circuit, CPC detectioncircuit, line amplifier, sidetone circuits and Remote FAX activation circuit.
8.8.2. LINE RELAY (RLY1)
1. Circuit Operation
Normally, this relay switches to the external telephone side (Break) and switches to the open side (make) when the unit startsfacsimile communication.
[IC1 (130) High Level → CN2 (7)] → CN1 (7) → Q10 ON → RLY1 (make)
8.8.3. BELL DETECTION CIRCUIT
1. Circuit Operation
The signal waveform for each section is indicated below. The signal (low level section) input to pin 23 of ASIC IC1 on the digitalboard is read.
TEL LINE → PC2 (1, 2 - 4) → CN1(11) → [CN2(11) → IC1(23)]
8.8.4. PULSE DIALING
[IC1 (130) High Level → CN2 (7)] → CN1 (7) → Q10 ON → RLY1 (make)
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KX-FT906HG-B / KX-FT908HG-B
8.8.5. LINE AMPLIFIER AND SIDE TONE CIRCUITS
1. Circuit Operation
The reception signal received as output from line transformer T2 is given as input to C17, R13, IC3(2, 3) and IC3(1).Then it isinput to the reception system at an amplifier gain of 2.5 dB from pin (2).The transmission signal is input from CN1 pin (5), and output to the TEL line through C29, R29, R28 and T2. Without a sidetone circuit, the transmission signal would return to the reception amplifier via C29 and R28. Here, the signal output from CN1pin (5) passes through C29, R24, R18, C23 and R23, and enters the amplifier IC3 pin (3). This is used to cancel the returnportion of the transmission signal. This is the side tone circuit.
8.8.6. CPC (CALLING PARTY CONTROL) DETECTION CIRCUIT
1. Function
This circuit detects the signal (cuts the current) output from the converter when the other party finishes ICM recording
and goes into the ON-HOOK status.
TAD detects this signal and disconnects the line. When the TAD is operating, pin (4) of PC4 becomes a low level.
While detecting the CPC signal, pin (4) of PC4 becomes a high level. When the CPC signal is detected, the TAD operation
stops and the line is disconnected.
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KX-FT906HG-B / KX-FT908HG-B
8.9. ITS (INTEGRATED TELEPHONE SYSTEM) AND MONITOR SECTION
8.9.1. GENERAL
The general ITS operation is performed by the modem IC5. The alarm tone, the key tone, the calling tone and the beep are outputfrom the ASIC IC1 (digital board).
8.9.2. SPEAKER PHONE CIRCUIT
1. Function
The circuit controls the automatic switching of the transmitted and received signals, to and from the telephone line, when theunit is used in the hands-free mode.
2. Circuit Operation
The speakerphone can only provide duplex.
3. Signal path
Refer to CHECK SHEET (P.99)
8.9.3. HANDSET CIRCUIT
1. Function
This circuit controls the conversation over the handset, i.e. the transmitted and received voices to and from the handset.
2. Signal path
Refer to CHECK SHEET (P.99)
8.9.4. MONITOR CIRCUIT FOR EACH SIGNALS
1. Function
This circuit monitors various tones, such as 1 DTMF tone, 2 Alarm/Beep/Key tone/Bell 3 Dummy ring back tone.
2. Signal path
Refer to CHECK SHEET (P.99)
8.10. ATAS (AUTOMATIC TELEPHONE ANSWERING SYSTEM) SECTION 1. Function
The ATAS main operation is performed by the special IC5 (MODEM). IC6 (FLASH MEMORY)´s control signals are input fromASIC IC1.
a. Greeting/Message Recording
b. ICM Recording
c. Greeting/Message/ICM play to speaker
d. Greeting/Message/ICM play to Tel Line
e. Vox Detection
2. Signal Path
Refer to CHECK SHEET (P.99)
8.10.1. REMOTE RECEIVING
1. Function
This is the parallel connection DTMF signal for the TEL mode between a and b. When the other party is a FAX, the unit changesto FAX receiving.
2. Signal Path
Refer to CHECK SHEET (P.99)
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KX-FT906HG-B / KX-FT908HG-B
8.10.2. CIRCUIT DIAGRAM
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KX-FT906HG-B / KX-FT908HG-B
8.11. OPERATION BOARD SECTIONThe unit consists of an LCD (Liquid crystal display), KEYs and LED (light-emitting diode). They are controlled by the Gate Array(IC1) and ASIC (IC1: on the DIGITAL BOARD). The key matrix table is shown below.
IC1
ASIC
DIGITAL BOARD OPERATION BOARD
READ POSITION SENSORDOCUMENT SENSOR
CN7 CN1
(Chip on board type)
GATE ARRAYIC1
CN2
7X5KEYS
MATRIX
LED
KSL0~4
XLED13, 14 SW41SW42
XLED11,12XLED 15
LCD
LED5
KIN0KIN2~7
KX-FT906/908HG-B OPERATION BOARD: BLOCK DIAGRAM
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KX-FT906HG-B / KX-FT908HG-B
8.12. LCD SECTIONThe Gate Array (IC1) works only for writing the ASCII code from data bus (D4-D7). V0 is supplied for the crystal drive. R13 andR14 are density control resistors. Consequently, in this unit, the timing (positive clock) is generated by the LCD interfacecircuitry in the gate array (IC1).
Density Normal DarkLED1 (IC1-22pin) H L
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KX-FT906HG-B / KX-FT908HG-B
8.13. POWER SUPPLY BOARD SECTIONThis power supply board uses the switching regulator method.
InputCircuit
ACInput
Surgeabsorbercircuit
G
H
5V
24V
Kick-onVoltageCircuit
E
IC101
F
GND
ControlCircuit
R136R137
ConverterCircuit
C
D5VOutputCircuit
24VOutputCircuit
+
-
RectifierCircuit
A
B
C106
Error DetectingCircuit
Surgeabsorbercircuit
・O.C.L・Over voltage
Q101
A-B Voltage Wave Form
C-D Voltage Wave Form
E-FG-H Voltage Wave Form
0
0
0
Block Diagram
[Input Circuit]
The input current goes into the input rectifier circuit through the filter circuit. The filter circuit decreases the noise voltage and thenoise electric field strength.
[Rectifier Circuit]
The input current is rectified by D101,D102,D103 and D104 and charges C106 to make DC voltage. Then it supplies power to theconverter circuit.
[Kick-on voltage circuit]
Bias is applied to the Q101 gate via this circuit when the AC power is turned on and Q101 begins operating.
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KX-FT906HG-B / KX-FT908HG-B
The following is an overview of how the power supply unit is controlled.
The control method of this power supply unit is pulse width modulation.
When Q1 is ON, the energy is charged in the transfer primary coil according to E1. When Q1 is OFF, the energy is output from thesecondary transfer as follows.
L → D1 → Load → L
Then the power is supplied to the Load. When Q1 is ON, power is not output from the secondary side. The output voltage is fedback in the control IC according to the error amp rectifier. Then depending on how TON is controlled, stabilization occurs. Also, whenthe current load becomes too large, in order to decrease the voltage output, the increase in is controlled and the output voltageis stabilized.
Therefore, basically the timing: Ton/Toff of Q1 controls the output voltage.
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KX-FT906HG-B / KX-FT908HG-B
[Surge Absorber Circuit]
This circuit is for absorbing surge voltage generated by the transformer.
[Control Circuit and Detecting Circuit]
The control circuit amplifies the output with increased voltage detected in the error detecting circuit. Then it drives the maintransistor.
In this power supply, the duty ratio is defined by changing the ON period of the main transistor.
This is shown as follows.
When the output voltage of the 24V circuit increases, the current of the photo coupler PC101 increases, the pulse width of theoutput control IC becomes narrower and the ON period of Q101 becomes shorter.
[Over Current Limiter (O.C.L)]
The highest drain current (Q101) is limited by a limiter circuit (IC101) of 24V. The 24V output is limited by this circuit.
[Over Voltage Circuit]
If the 24V output increases because the error detecting circuit or control circuit is broken, IC101 will recognize this signal and outputbecomes 0V.
Dummy load method (to quickly check the power supply output)
Refer to POWER SUPPLY BOARD SECTION (P.102).
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KX-FT906HG-B / KX-FT908HG-B
9 REFERENCE MATERIAL DATA
9.1. TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES
150
KX-FT906HG-B / KX-FT908HG-B
9.2.1.1. For Power Supply Board • • • • SOLDER
Sparkle Solder 115A-1, 115B-1 OR Almit Solder KR-19,KR-19RMA
• • • • Soldering iron
Recommended power consumption is between 30 W to 40W.
Temperature of Copper Rod 662 ± 50°F (350 ± 10°C)
(An expert may handle a 60~80 W iron, but a beginnermight damage the foil by overheating.)
• • • • Flux
HI115 Specific gravity 0.863
(Original flux should be replaced daily.)
9.2.1.2. For P.C.Board with “PbF”marking
• • • • PbF (: Pb free) Solder
• • • • Soldering Iron
Tip Temperature of 700°F ± 20°F (370°C ± 10°C)
Note: We recommend a 30 to 40 Watt soldering iron. Anexpert may be able to use a 60 to 80 Watt iron wheresomeone with less experience could overheat and damagethe PCB foil.
• • • • Flux
Recommended Flux: Specific Gravity → 0.82.
Type → RMA (lower residue, non-cleaning type)
Note: See ABOUT LEAD FREE SOLDER (PbF: Pb free)(P.5).
9.2. HOW TO REPLACE THE FLAT PACKAGE ICEven if you do not have the special tools (for example, a spot heater) to remove the Flat IC, with some solder (large amount),a soldering iron and a cutter knife, you can easily remove the ICs that have more than 100 pins.
9.2.1. PREPARATION
9.2.2. FLAT PACKAGE IC REMOVAL PROCEDURE
1. Put plenty of solder on the IC pins so that the pins can be completely covered.
Note:
If the IC pins are not soldered enough, you may give pressure to the P.C. board when cutting the pins with a cutter.
2. Make a few cuts into the joint (between the IC and its pins) first and then cut off the pins thoroughly.
3. While the solder melts, remove it together with the IC pins.
When you attach a new IC to the board, remove all solder left on the land with some tools like a soldering wire. If some solderis left at the joint on the board, the new IC will not be attached properly.
151
KX-FT906HG-B / KX-FT908HG-B
9.2.3. FLAT PACKAGE IC INSTALLATION PROCEDURE
1. Temporarily fix the FLAT PACKAGE IC, soldering the two marked pins.
*Check the accuracy of the IC setting with the corresponding solderingfoil.
2. Apply flux to all pins of the FLAT PACKAGE IC.
3. Solder the pins, sliding the soldering iron in the direction of the arrow.
9.2.4. BRIDGE MODIFICATION PROCEDURE
1. Lightly resolder the bridged portion.
2. Remove the remaining solder along the pins using a soldering iron as shown in the figure below.
152
KX-FT906HG-B / KX-FT908HG-B
9.2.5. DIGITAL SPEAKERPHONE
The digital speakerphone has different features from the analog speakerphone.
The analog speakerphone switches between Tx or Rx. Either Tx or Rx is able to pass through a telephone line or speaker,depending on the Tx and Rx signal (voice) level. The higher-level signal (either TX or RX) can pass through the route.
Therefore, you never hear the other party´s voice while you are talking. However, the digital speakerphone allows you to hearthe other party´s voice while you are talking. So both Tx and Rx are active at the same time. There is also a defference in thetroubleshooting procedures between the two types.
At the start of communication, during the initial 2~3 correspondences, the digital speakerphone performs half-duplex operation,alternating between transmission (Tx) and reception (Rx). Then duplex communication becomes available.
Learning occurs during the initial 2~3 correspondences in order to set the appropriate parameters for duplex communication.
You cannot check the digital speaker phone by the signal route test mentioned in the Analog Board Section because the levelis always changing as stated above.
Therefore, there is a service function for this troubleshooting. In this service mode, you can set the mute to either Tx or Rx. Thenyou can check the signal route of the speaker phone Tx or the speaker phone Rx without any disturbances.
153
KX-FT906HG-B / KX-FT908HG-B
Refer to ANALOG BOARD SECTION (P.99).
154
KX-FT906HG-B / KX-FT908HG-B
9.3. TEST CHART
9.3.1. ITU-T No.1 TEST CHART
155
KX-FT906HG-B / KX-FT908HG-B
9.3.2. ITU-T No.2 TEST CHART
156
KX-FT906HG-B / KX-FT908HG-B
10 FIXTURES AND TOOLS
157
KX-FT906HG-B / KX-FT908HG-B
11 CABINET, MECHANICAL
11.1. OPERATION PANEL SECTION
158
KX-FT906HG-B / KX-FT908HG-B
11.2. UPPER CABINET SECTION
159
KX-FT906HG-B / KX-FT908HG-B
11.3. LOWER CABINET
CROSS REFERENCE:
MOTOR SECTION (P.161)
160
KX-FT906HG-B / KX-FT908HG-B
11.4. MOTOR SECTION
11.4.1. KX-FT906HG-B
161
KX-FT906HG-B / KX-FT908HG-B
11.4.2. KX-FT908HG-B
162
KX-FT906HG-B / KX-FT908HG-B
11.5. ACTUAL SIZE OF SCREWS
163
KX-FT906HG-B / KX-FT908HG-B
12 ACCESSORIES AND PACKING MATERIALS
164
KX-FT906HG-B / KX-FT908HG-B
1. RTL (Retention Time Limited)
Note:
The marking (RTL) indicates that the Retention Time islimited for this item.
After the discontinuation of this assembly in production, theitem will continue to be available for a specific period oftime. The retention period of availability is dependent on thetype of assembly, and in accordance with the lawsgoverning parts and product retention.
After the end of this period, the assembly will no longer beavailable.
2. Important safety notice
Components identified by mark have specialcharacteristics important for safety. When replacing any ofthese components, use only manufacture´s specified parts.
3. The S mark means the part is one of some identical parts.For that reason, it may be different from the installed part.
4. ISO code (Example: ABS-HB) of the remarks columnshows quality of the material and a flame resisting gradeabout plastics.
5. RESISTORS & CAPACITORS
Unless otherwise specified;
All resistors are in ohms (Ω) K=1000Ω, M=1000kΩ
All capacitors are in MICRO FARADS (µF) P=µµF
*Type & Wattage of Resistor
13.1. CABINET AND ELECTRICALPARTS
13.1.1. OPERATION PANEL SECTIONRef.No.
Part No. Part Name & Description Remarks
1 PFGV1017Y COVER,TEL CARD
2 PFGD1051N TEL CARD
3 PFGP1272V PANEL, LCD (KX-FT906HG-B) PC-HB
3 PFGP1264N PANEL, LCD (KX-FT908HG-B) PC-HB
4 PFGG1209H1 GRILLE,OPERATION PANEL PS-HB
5 PFDE1224Z LEVER, DOCUMENT DETECTION POM-HB
6 PFUV1071X COVER, OPERATION PS-HB
7 PFUV1073Z1 COVER,HOLD
8 PFDG1123Z GEAR, PLATEN
Ref.No.
Part No. Part Name & Description Remarks
9 PFDJ1021Z PLATEN SPACER, R POM-HB
10 PFDN1033Z ROLLER, PLATEN
11 PFDJ1020Z PLATEN SPACER, L POM-HB
12 PFHX1743Z PLASTIC PARTS,SHEET
13 PFHG1064Z SEPARATION RUBBER
14 PFUS1523Z SPRING,DOCUMEN FEED
15 PFDG1170Z GEAR, PLATEN POM-HB
16 PFDN1044Z ROLLER, PLATEN
17 PFUS1286Z SPRING, OPERATION EARTH
18 PFJE1050Z LEAD WIRE
19 PQJM128Z BUILTIN-MICROPHONE
20 WLK26YB04AA LEAD, MIC (B)
21 WLK26YR04AA LEAD, MIC (R)
22 PFDG1015Y GEAR,DOCUMENT GUIDE POM-HB
23 PFUS1222Z SPRING
24 PFKR1074Z1 DOCUMENT GUIDE,R ABS-HB
25 PFKR1073Z1 DOCUMENT GUIDE,L ABS-HB
26 PFUS1170Z SPRING,DOCUMENT LEVER
27 PFHR1434Z GUIDE, LCD
28 PFBX1217Z1 BUTTON,DIAL
29 PFBX1216Z1 BUTTON,COPY STOP
30 PFBC1111Z1 BUTTON,START ABS-HB
31 PFKS1103Z1 DOCUMENT,TRY ABS-HB
32 PFHX1829Z SHEET OPE,LEAD
33 PFBX1218Z1 BUTTON,FUNCTION NAVI
34 PFQT1435V LABEL,FACEDOWN
13.1.2. UPPER CABINET SECTIONRef.No.
Part No. Part Name & Description Remarks
60 PFKM1049Y1 HANDSET CRADLE PS-HB
61 PFJS02Q64Z CONNECTOR,2PIN
62 PFAS50P006Z SPEAKER
63 PFKV1095Z1 COVER,CUTTER (KX-FT906HG-B) PS-HB
63 PFKV1026Y1 COVER,CUTTER (KX-FT908HG-B) PS-HB
64 PFQT2305T LABEL, CUTTER CAUTION (KX-FT906HG-B)
64 PFQT2235T LABEL, CUTTER CAUTION (KX-FT908HG-B)
65 Not Used (KX-FT906HG-B)
65 PFDX1025Z CUTTER UNIT (KX-FT908HG-B)
66 PFUS1179Z SPRING,LOOK LEVER
67 PFDE1137Y1 LEVER,LOCK ABS+GF2
68 PFHR1132Z COVER,HEAD
69 PFBH1011Z1 BUTTON,HOOK ABS-HB
70 PFDE1135Y HEAD GUIDE,L POM-HB
71 PFHX1752Z SHEET,HEAD
72 PFJHS023Z THERMAL HEAD
73 PFDE1136Y HEAD GUIDE,R POM-HB
74 PFJS12Q80Z CONNECTOR,THERMAL
75 PFUS1176Z SPRING,OPERATION COVER OPEN
76 PFUS1318Z SPRING,THERMAL HEAD
77 PFUS1256Z SPRING,EARTH CUTTER
78 PFUS1257Z SPRING,EARTH HEAD
79 PFGT2497Z-C NAME PLATE (KX-FT906HG-B)
79 PFGT2496Z-C NAME PLATE (KX-FT908HG-B)
80 PFQT2306Z LABEL,PAPER CAUTION (KX-FT906HG-B)
80 PFQT2233Z LABEL,PAPER CAUTION (KX-FT908HG-B)
81 PFDR1045Z ROLLER
82 PFDF1017Z SHAFT
83 PFUS1171Z SPRING,ROLLER
84 PFJS07P37Z CONNECTOR,7 PIN
85 PFUS1463Z SPRING,IMAGE SENSOR
86 N2GZBE000009 IMAGE SCANNER
87 PFQT1186R LABEL,CAUTION
13 REPLACEMENT PARTS LIST
165
KX-FT906HG-B / KX-FT908HG-B
13.1.3. LOWER CABINETRef.No.
Part No. Part Name & Description Remarks
100 PFHA1001Z RUBBER,LEG
101 PFMD1075Z FRAME,BOTTOM
102 PFDF1051Z SHAFT POM-HB
103 PFDE1133Z SPACER POM-HB
104 PFDR1015Z ROLLER SUPPORT
105 PFJS07P21Z CONNECTOR,7 PIN,LEAD POWER
106 PFHX1750Z SHEET,DIGITAL BORD
107 PFJS02Q82Z CONNECTOR,2 PIN
108 PQLB1E1 FERRITE CORE
109 PFJP03S04Z AC INLET
110 PQMX10010Z COVER,SUMI TUBE
111 KR06TT251508 LEAD WIRE,FERTH
112 WLR18YK30CM4 LEAD WIRE,EARTH
113 PFDE1097Z LEVER,PAPER SENSOR
114 PFUS1319Y SPRING,SENSOR
115 PFDE1134Z LEVER,JAM SENSOR PBT-VO
116 PQHR136Z CLAMPER
117 PFKM1131Y1 CABINET,BODY PS-VO
13.1.4. MOTOR SECTIONRef.No.
Part No. Part Name & Description Remarks
130 PFMH1084Z ANGLE, MOTOR PLATE
131 L6HAGCLK0002 MOTOR S
132 Not Used (KX-FT906HG-B)
132 PFHR1214Z ARM, CUTTER (KX-FT908HG-B)
133 Not Used (KX-FT906HG-B)
133 PFDG1174Y GEAR,CUTTER (KX-FT908HG-B) POM-HB
134 PFHX1413Z SPACER
135 PFDG1119Y GEAR POM-HB
136 PQST2A04Z SWITCH
137 PFJS03Q43Z CONNECTOR, 3 PIN
138 PFHR1218Z ARM POM-HB
139 PFDG1021Z GEAR,C POM-HB
140 PFUS1251Z SPRING,BACK
141 PFDG1167Z GEAR,MODE POM-HB
142 PFDG1168Z GEAR,MODE POM-HB
143 PFHR1216Z ARM POM-HB
144 PFUS1253Y SPRING,GEAR
145 PFDG1022Z GEAR,D POM-HB
146 PFUA1057Z CHASSIS,GEAR PBT-ABS
147 Not Used (KX-FT906HG-B)
147 PFUS1252Z SPRING,CUTTER (KX-FT908HG-B)
148 Not Used (KX-FT906HG-B)
148 PFHR1215Z ARM,CUTTER (KX-FT908HG-B) POM-HB
149 Not Used (KX-FT906HG-B)
149 PFJS03Q79Z CONNECTOR, 3 PIN (KX-FT908HG-B)
150 Not Used (KX-FT906HG-B)
150 PFDG1129Z GEAR S (KX-FT908HG-B) POM-HB
151 Not Used (KX-FT906HG-B)
151 PFDG1134Z GEAR,C (KX-FT908HG-B) POM-HB
152 Not Used (KX-FT906HG-B)
152 PFDG1173Z GEAR,CUTTER (KX-FT908HG-B) POM-HB
153 Not Used (KX-FT906HG-B)
153 PFDG1132Y GEAR,A (KX-FT908HG-B) POM-HB
154 PFDG1172Z GEAR,BASE POM-HB
155 PFHR1217Z ARM POM-HB
156 Not Used (KX-FT906HG-B)
156 PFHR1213Z ARM,CUTTER (KX-FT908HG-B) POM-HB
157 PFDG1171Z GEAR,SENDING POM-HB
158 PFDG1169Z GEAR POM-HB
159 PFHR1436Y COVER, GEAR CHASSIS
160 PFDG1362Z GEAR,D (KX-FT906HG-B)
13.1.5. ACCESSORIES AND PACKINGMATERIALS
Ref.No.
Part No. Part Name & Description Remarks
A1 PQJA10038Y POWER CORD
A2 PQJA10075Z TEL CORD
A3 PQJA10126X CURL CORD
A4 PQUS1524Z DOCUMENT STACKER
A5 PQHP10023Z THERMAL RECORDING PAPER
A6 PFJXE1001Z HANDSET
A7 PFQX2063Z INSTRUCTION BOOK
A8 PQQX9957Z PROTECTION PAPER
P1 PFZE1258Z-C GIFT BOX ASS´Y (KX-FT906HG-B)
P1 PFZE1262Z-C GIFT BOX ASS´Y (KX-FT908HG-B)
P2 PFPN1338Z CUSHION
P3 PFPN1337Z CUSHION
P4 PQPP10005Z PROTECTION COVER
P5 PFPH1030Z PACKING
13.2. DIGITAL BOARD PARTSRef.No.
Part No. Part Name & Description Remarks
PCB1 PFWP1FT906HG DIGITAL BOARD ASS`Y (RTL)(KX-FT906HG-B)
PCB1 PFWP1FT908HG DIGITAL BOARD ASS`Y (RTL)(KX-FT908HG-B)
PCB1-1 PFLP1551MLZ DIGITAL BOARD ASS`Y (RTL)(without ROM)
(ICS)
IC1 C1ZBZ0001896 IC
IC2 PFWIFT906HG IC (ROM) (KX-FT906HG-B)
IC2 PFWIFT908HG IC (ROM) (KX-FT908HG-B)
IC3 PFVII5510011 IC
IC4 C3BBHC000330 IC
IC5 PFVIR675814 IC
IC6 C3FBKC000108 IC
IC7 PFVIT2003APS IC S
IC8 PFVITVT245FT IC S
IC9 PQVINJM2904F IC S
IC10 PQVITC4066BF IC S
IC12 PQVIMC34119M IC S
(TRANSISTORS)
Q1 2SB1322 TRANSISTOR(SI) S
Q2 PFVTSI4431DY TRANSISTOR(SI) S
Q3 PQVTDTC143E TRANSISTOR(SI) S
Q4 PQVTDTC143E TRANSISTOR(SI) S
Q5 2SD1819A TRANSISTOR(SI) S
Q6 2SD1819A TRANSISTOR(SI) S
Q7 2SB1197K TRANSISTOR(SI) S
Q9 2SD1819A TRANSISTOR(SI) S
Q11 2SD1819A TRANSISTOR(SI) S
(DIODES)
D1 PFVDRMRLS245 DIODE(SI) S
D2 MA7200 DIODE(SI) S
D3 PFVDRMRLS245 DIODE(SI) S
D4 MA729 DIODE(SI) S
(CONNECTORS)
CN1 PQJP7G30Y CONNECTOR,7 PIN S
CN2 PQJP16A19Z CONNECTOR,16 PIN S
CN3 PQJP5G30Z CONNECTOR,5 PIN S
CN4 PQJP12G30Z CONNECTOR,12 PIN S
CN5 PQJP2G30Y CONNECTOR,2 PIN S
CN6 PQJP02G100Z CONNECTOR,2 PIN
CN7 PFJS12A13Z CONNECTOR,12 PIN
CN8 PQJP7G30Z CONNECTOR,7 PIN S
CN9 PQJP02G100Z CONNECTOR,2 PIN
(COILS)
166
KX-FT906HG-B / KX-FT908HG-B
Ref.No.
Part No. Part Name & Description Remarks
L1 PQLQR2KA20T COIL S
L6 PQLQR2KA20T COIL S
L9 J0JCC0000042 COIL S
L10 J0JCC0000042 COIL
L11 PQLQR2KA113 COIL S
L12 PQLQR2KA20T COIL S
L19 PQLQR2KA20T COIL S
L20 PQLQR2KA20T COIL S
(BATTERY)
BAT1 PFSU1004Z LITHIUM BATTERY !S
(COMPONENTS PARTS)
RA1 EXB38V101JV RESISTOR ARRAY S
RA2 EXB38V101JV RESISTOR ARRAY S
RA3 EXB38V101JV RESISTOR ARRAY S
RA4 EXB38V101JV RESISTOR ARRAY S
RA7 EXB38V101JV RESISTOR ARRAY S
RA8 EXB38V101JV RESISTOR ARRAY S
(CRYSTAL OSCILLATORS)
X1 H0A327200045 CRYSTAL OSCILLATOR
X2 H2D240500001 CRYSTAL OSCILLATOR
X3 H0D322500001 CRYSTAL OSCILLATOR S
(FUSES)
F1 PFRB0031125T FUSE S
F2 PFRB001251KC FUSE S
(RESISTORS)
L2 ERJ3GEY0R00 0
L3 ERJ3GEYJ101 100
L4 ERJ3GEYJ101 100
L5 ERJ3GEYJ101 100
L7 ERJ3GEYJ101 100
L8 ERJ3GEYJ101 100
L13 ERJ3GEY0R00 0
L14 ERJ3GEY0R00 0
L15 ERJ3GEY0R00 0
L17 ERJ3GEY0R00 0
L18 ERJ3GEY0R00 0
R1 ERJ3GEYJ472 4.7K
R2 ERJ3GEYJ472 4.7K
R3 ERJ3GEYJ102 1K
R4 ERJ3GEYJ102 1K
R7 ERJ3GEYJ271 270
R8 ERJ3GEYJ124 120K
R10 ERG2SJ152 1.5K
R11 ERJ3GEY0R00 0
R12 ERJ3GEYJ101 100
R13 ERJ3GEYJ101 100
R14 ERJ3GEYJ101 100
R15 ERJ3GEYJ101 100
R16 ERJ3GEYJ101 100
R17 ERJ3GEYJ101 100
R19 ERJ3GEYJ821 820
R20 ERDS1VJ152 1.5K S
R21 ERJ3GEYJ562 5.6K
R22 ERJ3GEYJ472 4.7K
R23 ERJ3GEYJ101 100
R24 ERJ3GEYJ101 100
R25 ERJ3GEYJ101 100
R26 ERJ3GEYJ101 100
R27 ERJ3GEYJ101 100
R28 ERJ3GEYJ472 4.7K
R29 ERJ3GEYJ223 22K
R30 ERJ3GEYJ433 43K
R31 ERJ3GEYJ4R7 4.7
R32 ERJ3GEYJ222 2.2K
R33 ERJ3GEYJ203 20K
R35 ERJ3GEYJ472 4.7K
R36 ERJ3GEYJ333 33K
Ref.No.
Part No. Part Name & Description Remarks
R38 ERJ3GEYJ101 100
R39 ERJ3GEYJ101 100
R40 ERJ3EKF1101 1.1K
R41 ERJ3EKF3602 36K
R42 ERJ3GEYJ101 100
R44 ERJ3GEYJ101 100
R46 ERJ3GEYJ334 330K
R47 ERJ3GEYJ475 4.7M
R48 ERJ3GEYJ222 2.2K
R49 ERJ3GEYJ101 100
R50 ERJ3GEYJ101 100
R51 ERJ3GEYJ471 470
R52 ERJ3GEYJ101 100
R54 ERJ3GEYJ101 100
R57 ERJ3GEYJ102 1K
R58 ERJ3GEY0R00 0
R59 ERJ3GEYJ470 47
R61 ERJ3GEYJ105 1M
R62 ERJ3GEYJ104 100K
R63 ERJ3GEYJ103 10K
R64 ERJ3GEY0R00 0
R65 ERJ3GEYJ101 100
R66 ERJ3GEYJ101 100
R67 ERG2SJ391 390
R68 ERJ3GEYJ222 2.2K
R69 ERJ3GEYJ473 47K
R70 ERJ3GEY0R00 0
R74 ERJ3GEYJ103 10K
R76 ERJ3GEYJ103 10K
R77 ERJ3GEYJ123 12K
R78 ERJ3GEYJ104 100K
R79 ERJ3GEYJ163 16K
R80 ERJ3GEYJ181 180
R81 ERJ3GEYJ222 2.2K
R82 ERJ3GEYJ472 4.7K
R83 ERJ3GEY0R00 0
R84 ERJ3GEYJ393 39K
R85 ERJ3GEY0R00 0
R88 ERJ3GEYJ123 12K
R89 ERJ3GEYJ822 8.2K
R9 ERJ3GEY0R00 0
R92 ERJ3GEYJ334 330K
R93 ERJ3GEYJ363 36K
R97 ERJ3GEYJ222 2.2K
R99 ERJ3GEYJ222 2.2K
R100 ERJ3GEYJ101 100
R101 ERJ3GEYJ101 100
R103 ERJ3GEYJ682 6.8K
R104 ERJ3GEYJ222 2.2K
R107 ERJ3GEYJ102 1K
R108 ERJ3GEYJ222 2.2K
R109 ERJ3GEYJ102 1K
R110 ERJ3GEYJ561 560
R111 ERJ3GEYJ103 10K
R112 ERJ3GEYJ272 2.7K
R113 PQ4R18XJ220 22 S
R114 ERJ3GEYJ334 330K
R115 ERJ3GEYJ102 1K
R116 ERJ3GEYJ153 15K
R117 ERJ3GEYJ103 10K
R118 ERJ3GEYJ103 10K
R121 PQ4R10XJ000 0 S
R122 ERJ3GEYJ124 120K
R123 ERJ3GEYJ124 120K
R124 ERJ3GEYJ273 27K
(CAPACITORS)
C1 ECUV1H102KBV 0.001
C3 ECUV1H102KBV 0.001
C7 ECUV1H102KBV 0.001
C9 ECUV1E104ZFV 0.1
C11 ECUV1E104ZFV 0.1
C12 PQCUV1H104ZF 0.1
167
KX-FT906HG-B / KX-FT908HG-B
Ref.No.
Part No. Part Name & Description Remarks
C13 ECEA0JKA101 100 S
C15 ECUV1H102KBV 0.001
C16 ECUV1E104ZFV 0.1
C17 ECUV1E104ZFV 0.1
C18 ECUV1E104ZFV 0.1
C19 ECUV1H101JCV 100P
C20 ECUV1E104ZFV 0.1
C23 ECUV1E104ZFV 0.1
C24 ECUV1E104ZFV 0.1
C25 ECUV1E104ZFV 0.1
C26 ECUV1H222KBV 0.0022
C27 ECUV1E104ZFV 0.1
C28 ECUV1E104ZFV 0.1
C29 ECUV1E104ZFV 0.1
C30 ECUV1C104KBV 0.1
C31 ECUV1E104ZFV 0.1
C32 ECUV1E104ZFV 0.1
C33 ECUV1C104KBV 0.1
C34 ECUV1H102KBV 0.001
C35 ECUV1H150JCV 15P
C36 ECUV1E104ZFV 0.1
C38 ECUV1E104ZFV 0.1
C39 ECUV1H120JCV 12P
C40 ECUV1E104ZFV 0.1
C41 ECUV1E104ZFV 0.1
C42 ECUV1E104ZFV 0.1
C43 ECUV1E104ZFV 0.1
C44 ECUV1E104ZFV 0.1
C45 ECUV1E104ZFV 0.1
C48 ECUV1E104ZFV 0.1
C49 ECUV1E104ZFV 0.1
C50 ECUV1E104ZFV 0.1
C51 ECUV1E104ZFV 0.1
C52 ECUV1E104ZFV 0.1
C55 ECUV1E104ZFV 0.1
C56 ECUV1C104KBV 0.1
C58 ECUV1C104KBV 0.1
C59 ECUV1H103KBV 0.01
C60 ECUV1C104KBV 0.1
C62 ECUV1H080DCV 8P
C64 ECUV1H472KBV 0.0047 S
C65 ECUV1C104KBV 0.1
C66 ECUV1H080DCV 8P
C67 ECUV1E104ZFV 0.1
C68 ECUV1H330JCV 33P
C70 ECUV1H681JCV 680P S
C71 ECUV1E104ZFV 0.1
C73 ECUV1E104ZFV 0.1
C74 ECUV1E104ZFV 0.1
C76 ECUV1E104ZFV 0.1
C78 ECEA0JKA470 47 S
C81 ECUV1E104ZFV 0.1
C82 ECUV1C104KBV 0.1
C84 ECUV1H101JCV 100P
C85 ECUV1E104ZFV 0.1
C86 ECUV1E104ZFV 0.1
C88 ECUV1E104ZFV 0.1
C90 ECUV1E104ZFV 0.1
C92 ECUV1C333KBV 0.033
C93 ECUV1E104ZFV 0.1
C94 ECUV1C104KBV 0.1
C95 ECUV1C104KBV 0.1
C96 ECUV1C104KBV 0.1
C97 ECUV1E104ZFV 0.1
C99 ECUV1E104ZFV 0.1
C100 ECUV1E104ZFV 0.1
C101 ECUV1C104KBV 0.1
C102 ECEA1CKA100 10 S
C103 ECEA1CKA100 10 S
C104 ECUV1H101JCV 100P
C105 ECUV1E104ZFV 0.1
C106 ECUV1E104ZFV 0.1
C107 ECUV1C333KBV 0.033
Ref.No.
Part No. Part Name & Description Remarks
C108 ECUV1C104KBV 0.1
C109 ECEA1CKA100 10 S
C110 ECEA1CKA100 10 S
C111 ECUV1E104ZFV 0.1
C112 ECUV1H102KBV 0.001
C113 ECEA1CKA100 10 S
C115 ECUV1C104KBV 0.1
C116 ECUV1H331JCV 330P S
C120 ECUV1E104ZFV 0.1
C123 ECEA1HKA4R7 4.7 S
C126 ECUV1H102KBV 0.001
C127 ECUV1C104KBV 0.1
C129 ECUV1C104KBV 0.1
13.3. ANALOG BOARD PARTSRef.No.
Part No. Part Name & Description Remarks
PCB2 PFLP1552HGZ ANALOG BOARD (RTL)
(ICs)
IC2 C0AABB000025 IC
IC3 C0ABEB000038 IC
(TRANSISTORS)
Q1 2SC4155S TRANSISTOR(SI) S
Q2 PQVTDTC114EU TRANSISTOR(SI) S
Q3 PQVTDTC114EU TRANSISTOR(SI) S
Q9 2SC4155R TRANSISTOR(SI) S
Q10 PQVTDTC143E TRANSISTOR(SI) S
Q11 PQVTDTC143E TRANSISTOR(SI) S
(DIODES)
D1 MA4047 DIODE(SI) S
D2 MA4056 DIODE(SI) S
D3 MA4056 DIODE(SI) S
D12 1SS119 DIODE(SI) S
D13 1SS119 DIODE(SI) S
D14 1SS119 DIODE(SI) S
(JACK AND CONNECTOR)
CN1 PQJS16A10Z CONNECTOR, 16 PIN S
CN3 PQJJ1TB18Z JACK S
CN4 PFJJ1T006Z JACK S
CN5 PFJJ1T006Z JACK S
(SWITCHES)
SW1 PFSH1A03Z PUSH SWITCH S
SW2 ESE14A211 PUSH SWITCH
SW3 PFSH1A03Z PUSH SWITCH S
(COILS)
L1 PQLQR2KA113 COIL S
L3 PQLQR2KA113 COIL S
L4 PQLQR2KA113 COIL S
L7 PQLQR2KA113 COIL S
L10 PQLQR2KA113 COIL S
L22 PQLQR1RS102 COIL S
L23 PQLQR1RS102 COIL S
L24 PQLQR1RS102 COIL S
L25 PQLQR1RS102 COIL S
L26 PQLQR2BT COIL S
L27 PQLQR2BT COIL S
L32 PQLQR2BT COIL S
L33 PQLQR2BT COIL S
(PHOTO ELECTRIC TRANSDUCERS)
PC2 PQVIPC814K PHOTO COUPLER !S
PC4 PFVITLP320 PHOTO COUPLER !S
(RELAY)
RLY1 PFSL003Z RELAY S
168
KX-FT906HG-B / KX-FT908HG-B
Ref.No.
Part No. Part Name & Description Remarks
(VARISTORS)
SA1 PQVDDSS301L VARISTOR (SURGE ABSORBER) !S
SA2 J0LS00000024 VARISTOR (SURGE ABSORBER)
(TRANSFORMER)
T2 G4A1A0000151 TRANSFORMER
(RESISTORS)
L2 ERJ3GEY0R00 0
L5 ERJ3GEY0R00 0
L6 ERJ3GEY0R00 0
L8 ERJ3GEY0R00 0
L9 ERJ3GEY0R00 0
L11 ERJ3GEY0R00 0
L12 ERJ3GEY0R00 0
L13 ERJ3GEY0R00 0
L14 ERJ3GEY0R00 0
L15 ERJ3GEY0R00 0
L17 ERJ3GEY0R00 0
L18 ERJ3GEY0R00 0
L28 ERJ3GEY0R00 0
L29 ERJ3GEY0R00 0
L30 ERJ3GEY0R00 0
L31 ERJ3GEY0R00 0
R1 ERJ3GEYJ101 100
R2 ERJ3GEYJ103 10K
R3 ERJ3GEYJ101 100
R4 ERJ3GEYJ472 4.7K
R5 ERJ3GEY0R00 0
R6 ERJ3GEYJ472 4.7K
R7 ERJ3GEYJ101 100
R8 ERJ3GEYJ103 10K
R9 ERJ3GEYJ103 10K
R10 ERJ3GEYJ154 150K
R11 ERJ3GEYJ124 120K
R12 ERJ3GEYJ472 4.7K
R13 ERJ3GEYJ753 75K
R14 ERJ3GEY0R00 0
R15 ERJ3GEYJ753 75K
R16 ERJ3GEYJ273 27K
R17 ERJ3GEYJ683 68K
R18 ERJ3GEYJ753 75K
R20 ERJ3GEYJ224 220K
R21 ERJ3GEYJ224 220K
R22 ERJ3GEYJ393 39K
R23 ERJ3GEYJ472 4.7K
R24 ERJ3GEYJ124 120K
R25 ERJ3GEYJ364 360K
R26 ERJ3GEYJ103 10K
R28 ERDS2TJ221 220 S
R30 ERJ3GEYJ123 12K
R32 ERJ3GEYJ682 6.8K
R35 ERJ3GEYJ223 22K
R36 ERJ3GEYJ363 36K
R40 ERJ3GEY0R00 0
R44 ERJ3GEYJ222 2.2K
R45 ERJ3GEYJ222 2.2K
R47 ERDS1TJ183 18K S
R49 ERJ3GEYJ564 560K
R51 ERJ3GEYJ222 2.2K
R52 ERG2SJ121 120
R54 ERJ3GEYJ304 300K
R55 ERJ3GEYJ331 330
R56 ERJ3GEYJ304 300K
R57 ERDS1TJ103 10K S
R58 ERJ3GEYJ682 6.8K
R60 ERJ3GEY0R00 0
R61 ERJ3GEYJ123 12K
R63 ERJ3GEYJ332 3.3K
R64 ERJ3GEYJ332 3.3K
R65 ERJ3GEYJ473 47K
R66 ERJ3GEYJ220 22
R67 ERJ3GEYJ222 2.2K
Ref.No.
Part No. Part Name & Description Remarks
R68 ERDS2TJ221 220 S
R70 ERJ3GEYJ152 1.5K
R71 ERJ3GEYJ152 1.5K
R73 ERJ3GEYJ331 330
R79 ERJ3GEY0R00 0
R81 ERJ3GEYJ103 10K
R84 ERJ3GEYJ105 1M
(CAPACITORS)
C1 ECUV1H103KBV 0.01
C2 ECUV1H103KBV 0.01
C4 ECEA1HKA4R7 4.7 S
C5 ECUV1H103KBV 0.01
C6 ECEA0JKA470 47 S
C7 ECUV1E104ZFV 0.1
C8 ECUV1H121JCV 120P
C11 ECUV1C473KBV 0.047
C12 ECUV1C104KBV 0.1
C13 ECUV1H100DCV 10P
C14 ECUV1H392KBV 0.0039
C15 ECEA1CKA100 10 S
C17 ECUV1C393KBV 0.039
C19 ECUV1C683KBV 0.068
C20 ECUV1E104ZFV 0.1
C21 ECUV1C393KBV 0.039
C22 ECUV1H100DCV 10P
C24 ECUV1H390JCV 39P
C25 PQCUV1H104ZF 0.1
C26 ECUV1C223KBV 0.022
C29 ECEA1HKA4R7 4.7 S
C31 ECUV1C473KBV 0.047
C32 ECUV1C104KBV 0.1
C37 ECUV1E104ZFV 0.1
C38 ECUV1H101JCV 100P
C40 ECUV1C104KBV 0.1
C41 ECUV1H221JCV 220P S
C45 ECUV1H100DCV 10P
C48 ECQE2E105KZ 1 S
C51 ECUV1H472KBV 0.0047 S
C52 ECUV1H104KBV 0.1
C53 ECUV1H104KBV 0.1
C55 ECEA0JKA470 47 S
C56 ECUV1H103KBV 0.01
C58 ECEA1CKA100 10 S
C61 ECUV1H103KBV 0.01
C62 ECEA0JKA470 47 S
C63 ECUV1H103KBV 0.01
C65 ECUV1H103KBV 0.01
C74 ECUV1H103KBV 0.01
C76 ECUV1C104KBV 0.1
(THERMISTOR)
POS1 PFRT002 THERMISTOR !S
13.4. OPERATION BOARD PARTSRef.No.
Part No. Part Name & Description Remarks
PCB3 PFWP2FT907LA OPERATION BOARD KIT (RTL)
PCB3-1 PFSH1A003Z SWITCH (SW44)
(ICS)
IC1 C1ZBZ0002089 IC
(TRANSISTORS)
Q1 2SD1819A TRANSISTOR(SI) S
(DIODE)
LED1 LNJ801LPDJA DIODE(SI)
(LIQUID CRYSTAL DISPLAY)
CN1 PFJS12A13Z LIQUID CRYSTAL DISPLAY
CN2 PFAVM220 LIQUID CRYSTAL DISPLAY
169
KX-FT906HG-B / KX-FT908HG-B
Ref.No.
Part No. Part Name & Description Remarks
(PHOTO ELECTRIC TRANSDUCERS)
PS1 CNA1006N PHOTO SENSOR
(SWITCHES)
SW1 EVQ11Y05B SWITCH S
SW2 EVQ11Y05B SWITCH S
SW3 EVQ11Y05B SWITCH S
SW4 EVQ11Y05B SWITCH S
SW5 EVQ11Y05B SWITCH S
SW6 EVQ11Y05B SWITCH S
SW7 EVQ11Y05B SWITCH S
SW8 EVQ11Y05B SWITCH S
SW9 EVQ11Y05B SWITCH S
SW10 EVQ11Y05B SWITCH S
SW11 EVQ11Y05B SWITCH S
SW12 EVQ11Y05B SWITCH S
SW13 EVQ11Y05B SWITCH S
SW14 EVQ11Y05B SWITCH S
SW15 EVQ11Y05B SWITCH S
SW16 EVQ11Y05B SWITCH S
SW17 EVQ11Y05B SWITCH S
SW18 EVQ11Y05B SWITCH S
SW19 EVQ11Y05B SWITCH S
SW20 EVQ11Y05B SWITCH S
SW21 EVQ11Y05B SWITCH S
SW22 EVQ11Y05B SWITCH S
SW23 EVQ11Y05B SWITCH S
SW24 EVQ11Y05B SWITCH S
SW25 EVQ11Y05B SWITCH S
SW26 EVQ11Y05B SWITCH S
SW27 EVQ11Y05B SWITCH S
SW28 EVQ11Y05B SWITCH S
SW29 EVQ11Y05B SWITCH S
SW30 EVQ11Y05B SWITCH S
SW31 EVQ11Y05B SWITCH S
SW32 EVQ11Y05B SWITCH S
SW33 EVQ11Y05B SWITCH S
SW34 EVQ11Y05B SWITCH S
SW35 EVQ11Y05B SWITCH S
SW36 EVQ11Y05B SWITCH S
SW37 EVQ11Y05B SWITCH S
SW38 EVQ11Y05B SWITCH S
SW39 EVQ11Y05B SWITCH S
SW40 EVQ11Y05B SWITCH S
SW41 EVQ11Y05B SWITCH S
SW42 EVQ11Y05B SWITCH S
(RESISTORS)
R3 ERJ3GEYJ332 3.3K
R4 ERJ3GEYJ564 560K
R5 ERJ3GEYJ223 22K
R6 ERJ3GEYJ682 6.8K
R7 ERJ3GEYJ331 330
R8 ERJ3GEYJ331 330
R9 ERJ3GEYJ101 100
R10 ERJ3GEYJ472 4.7K
R11 ERJ3GEYJ331 330
R12 ERJ3GEYJ563 56K
R13 ERJ3GEYJ273 27K
R14 ERJ3GEYJ561 560
R17 ERJ3GEYJ271 270
R24 ERJ3GEY0R00 0
R25 ERJ3GEYJ4R7 4.7
R44 ERJ3GEY0R00 0
R45 ERJ3GEY0R00 0
R46 ERJ3GEY0R00 0
R47 ERJ3GEY0R00 0
R48 ERJ3GEY0R00 0
R49 ERJ3GEYJ101 100
R50 ERJ3GEYJ472 4.7K
R51 ERJ3GEYJ101 100
R52 ERJ3GEYJ472 4.7K
Ref.No.
Part No. Part Name & Description Remarks
R53 PQ4R18XJ000 0 S
(CAPACITORS)
C3 ECUV1E104ZFV 0.1
C5 ECEA0JKA221 220 S
C7 ECUV1H331JCV 330P S
C8 ECUV1H121JCV 120P
C9 ECUV1H331JCV 330P S
C10 ECUV1H681JCV 680P S
C11 ECUV1C104KBV 0.1
C12 ECUV1H103KBV 0.01
C13 ECEA0JKA470 47 S
C14 ECUV1H103KBV 0.01
C15 ECUV1E104ZFV 0.1
C16 ECUV1E104ZFV 0.1
C18 ECUV1C224ZFV 0.22 S
C19 ECUV1H103KBV 0.01
C22 ECUV1C103KBV 0.01
C23 ECUV1C103KBV 0.01
13.5. POWER SUPPLY BOARDPARTS
Ref.No.
Part No. Part Name & Description Remarks
PCB4 N0AC2GJ00004 POWER SUPPLY BOARD ASS´Y(RTL)
(ICs)
IC101 PQVIFA5511P IC
IC201 AN1431T IC
IC202 AN7805F IC
(TRANSISTOR)
Q101 2SK2647 TRANSISTOR(SI)
(DIODES)
D101 PFVD1N4005 DIODE(SI) S
D102 PFVD1N4005 DIODE(SI) S
D103 PFVD1N4005 DIODE(SI) S
D104 PFVD1N4005 DIODE(SI) S
D105 PFVDEG01C DIODE(SI) S
D106 1SS133 DIODE(SI)
D108 PFVDAU02Z DIODE(SI) S
D201 PFVDSF5LC20U DIODE(SI) S
D202 PFVDD1NL20U DIODE(SI) S
(COIL)
L101 ELF15N006A COIL
(COMPONENT PART)
L103 EXCELDR35 COMPONENT PART
(CONNECTORS)
CN301 PQJPB7BPHKL CONNECTOR,7 PIN
CN31 PQJP2D98Z CONNECTOR,2 PIN
(FUSE)
F101 PFBA2153.15 FUSE S
(PHOTO ELECTRIC TRANSDUCER)
PC101 0N3171 PHOTO COUPLER S
(THERMISTOR)
TH101 PFRT57235S80 THERMISTOR S
(TRANSFORMER)
T101 PFLTSRW226V TRANSFORMER S
(VARIABLE RESISTOR)
VR201 EVNDXAA03B53 VARIABLE RESISTOR
170
KX-FT906HG-B / KX-FT908HG-B
Ref.No.
Part No. Part Name & Description Remarks
(VARISTOR)
ZNR1 ERZV10DK751 VARISTOR
(RESISTORS)
J5 ERJ3GEY0R00 0
R101 ERDS1J105 1M
R102 ERDS2J394 390k
R103 ERDS2J394 390k
R106 ERG2SJ470 47
R107 ERG2DJ154E 150k
R108 ERDS2FJ150 15
R109 ERDS2TJ100 10
R121 ERJ3GEYJ103 10k
R122 ERJ3GEYJ271 270
R124 ERJ3GEYJ181 180
R126 ERJ3GEYJ823 82k
R127 ERJ3GEYJ182 1.8k
R128 ERJ6GEYJ101 100 S
R136 ERJ6GEYJ224 220k S
R137 ERJ6GEYJ224 220k S
R202 ERG2SJ332E 3.3k
R203 ERDS1FVJ470 47
R221 ERJ3GEYJ222 2.2k S
R222 ERJ3GEYJ222 2.2k S
R223 ERJ3GEYJ101 100 S
R224 ERJ3GEYJ273 27k S
R225 ERJ3GEYJ332 3.3k S
(CAPACITORS)
C101 ECQU2A224MV 0.22
C102 ECQU2A104MV 0.1
C103 PFKD2E3KH102 0.001 S
C105 PFKD2E3KH222 0.0022
C106 UEB2W560U 56 S
C108 ECKD3A102KBP 0.001
C109 PFCEA50YXA22 22
C110 PFKDEGA222M 0.0022 S
C119 ECKD3A470KBP 47p
C121 ECUV1H472KBV 0.0047
C122 ECUV1A224KBV 0.22
C123 ECUV1H103KBV 0.01
C124 ECUV1A474KBV 0.4 S
C125 ECUV1H471JCV 470p
C126 ECUV1H104KCV 0.1
C201 PFCEA35F471 470 S
C202 ECKN3A102KBP 0.001
C203 PFCEA16A470 470 S
C204 PFCEA35A47M 47 S
C205 PFCEA50A1M 1 S
13.6. FIXTURES AND TOOLSRef.No.
Part No. Part Name & Description Remarks
EC1 PQZZ7K5Z CONNECTOR, 7P
EC2 PFZZ16K5Z CONNECTOR, 16P
EC3 PQZZ2K1Z CONNECTOR, 2P
EC4 PFZZ5K13Z CONNECTOR, 5P
EC5 PFZZ12K4Z CONNECTOR, 12P
EC6 PQZZ2K12Z CONNECTOR, 2P
EC7 PQZZ12K4Z CONNECTOR, 12P
EC8 PQZZ2K13Z CONNECTOR, 2P
EC9 PFJE1050Z LEAD WIRE
KM79811245C0 BASIC FACSIMILE TECHNIQUE
(For training servicetechnicians)
Notes:
Tools and Extension Cords are useful for servicing.(They make servicing easy.)
171
KX-FT906HG-B / KX-FT908HG-B
14 MEMO
172
KX-FT906HG-B / KX-FT908HG-B
15 P
RIN
TE
DC
IRC
UIT
BO
AR
D15
.1.
DIG
ITA
LB
OA
RD
(PC
B1)
15.1
.1.
DIG
ITA
LB
OA
RD
:C
OM
PO
NE
NT
VIE
W
KX
-FT
906/
908H
G-B
: D
IGIT
AL
BO
AR
D :
CO
MP
ON
EN
T V
IEW
+24V
+5VD
R38R39
R42
109
144
+2.5
V/BA
TIN
L11C69
R124D4
C87
X3
AMO
N
R11
IC7
CN3 CN6 CN5
1
1
1 2 12CN7
L19
1
2
5
XRESET
98 1
16
C2R31
C22
L4
L6
C128
L9
32
Q1
E
E
R19
AB
Q4
R20
REF-CH
PCB-CH
AUTO
-CH
D2
D1
1
IC2
17
1 16
CN2
R27
R26
R25
R24
R52
R71
103 12810
265
C61
IC5
64IC
11
916
81
3938
1
R50
R70
R80
C64
C52
2011
110C21
+3.3VD
CN4
R16
R75
R73
R82C23F1
1.25
A
C100
C102
C99
C68
R83
C67
C9R6
9R6
8
R49
R23
R32
R35
L1L7
L5 L3L8 R7
C19
RA1
116
3217
3217
IC8
Q9
IC6
116
R113
IC4
IC1
C24
C25
C46
R51 R5
5
C36
R40
CLK
FTG
R65
R62
R76
C123
R107
C96
EYEX
YEY
ESYN
C+3
.3V/
BATI
N
EYEC
LK
R67
R66
R74
C57R72R64
R48
R104C106
C105
C60
R121+5VA
C104
C101
R108
R109
R105R106
R96
R95
R94
R90
C91
C94C95
C12221R119
C92R99
R103
L12 7
CN8
D3
C110
C109
C125
1
R60C53
C55
DG
R41R5
8R5
6C4
0R4
5R4
7
R46C32
R54
C56
R63SIG
R115
R28
136
377273
108
TEST
X1
RA9
C97
C89
R98
1613
54
IC3
J1DG
CN9
BATI
Q6
Q5
C47
PFUP
1393
ZPb
F
+2.5
V
XNMI
E
E
Q11E
E
Q7 E
RA2
RA3 RA
4
RA7
C116C115R78
R79121
R114
C59C58
R77C70
R84C72
R89R88
RA8
Q8
C62
C66
L10
R61
R59
ADR1
3AD
R14
ADR1
5
XCLK
X2
EQ
10E
E
C75
C113
C103
C78
L15
L13
C65
R81
IC9
1 458 C7
9L18
C73L1
4C1
3
L17
C80C8
2148
7 1
C84
R92
IC10
R97
Q12C12
C11
F20.25A
R10
CN1
17 R93
C10
PG
85
14Q
2
X4
KX-FT906HG-B / KX-FT908HG-B
173
15.1
.2.
DIG
ITA
LB
OA
RD
(PC
B1)
:B
OT
TO
MV
IEW
KX
-FT
906/
908H
G-B
: D
IGIT
AL
BO
AR
D :
BO
TTO
M V
IEW
Q3
E
C44
C35R37C39
12
34
56
78
9A
BC
DE
FG
HI
C38
C37
C33 C30R44
C15R30
R29
R33C26C20
C18
C50
C49C51
C8R21
R22
C4C6C129
C83
C77
L20
C16C34R36
C120
R17R15
R14R13R12
R102C98
R110R91
C111
C90C88
R100
C93
C71C63
C43
C48C41
C31C28
C17R5
R1R3C1
C7C5
R6
C114C27
C45
C42
R4R2
C3R8R57R43
C29L2
R9C54
C86C74
C117C76
R85
R111
R116
R117
R122R123
C124
R120C127C126
R118
C121
8 5
1 4
IC12
C112R112
R101C85
C81
C107C108
PFUP1393Z
MO
DEM3.3V
+3.3V/BATIN
+2.5V/BATIN
+2.5V
+3.3V
XTEST
RESET
PbF
KX-FT906HG-B / KX-FT908HG-B
174
15.2
. A
NA
LO
GB
OA
RD
(PC
B2)
15.2
.1.
AN
AL
OG
BO
AR
D:
CO
MP
ON
EN
TV
IEW
POS1
SA2
SA1
L34JJ
2
JJ3
L20
J24
J25 PC4
SW3
R52
F1
ZNR1
RLY1
T1
T2 PbF
J23
J22 J26
J27
J28
J1
J4
J3 J2
J6
J10
J14
J11
J12
CN1
116
J5
J9
J19
FLT3
1 4
85
J7
J8
J16
PFUP
1394
Z-UT
J15
J31
J17
J18
J33
J29
J32
AUTO
-CH
R83
D5 D4
R57
R85
R47
J21
J20
C30
C39
C10
C6
SW2
C62
CN3
C55
C58
C29
C15
C4
SW1
CN4
CN5
C48
T3
C50
C49
D12
D13
D6
D1
D15
D3
D14
D2
R43
EQ8
PC2
PC3
PC1
R28
R29
R68
PCB-
CH
KX
-FT
906/
908H
G-B
: A
NA
LOG
BO
AR
D :
CO
MP
ON
EN
T V
IEW
KX-FT906HG-B / KX-FT908HG-B
175
15.2
.2.
AN
AL
OG
BO
AR
D:
BO
TT
OM
VIE
W
C28C27
C31
AB
CD
EF
GH
I
L9
L4C7
5 8
14
L7R20
C16L6
R21
L5C20
R3C2 R6
R26
+24V
+24VA
+5V
+2.0V
GNDL2 C12
C25
Q1
R16R17
C11C24
Q10
EE
E
Q11R25
C22L3
C21R10
C8
C13
R18
R24
C19C18R23
PC4
123
4
IC3
C9R11
C17R13
L8C14R15
R44
R59 R31R53
R33
R1 R4
C76 R2
R84
C3 R9 R8 L14R60C74R61C43 4 1
85R64R56C46
L15R66
R65
C45
R49C38R45
C34R37R39
L13
L18L12C37
L10C52R63R36
R35R40R46
C51C40
R58
R34
R55
L24C65
C26
R30R32
R22L1
C1 R5
R81R38
C57
R79L23
L30
L31
L28
L29
L11
C32C41
L17C63
L22L25
R71C61
C53
R54R73
IC2
R51
R70
R27
C5R7R12R67
DA1R82
R80
L26
L27
R48
R14
C56
L32
L33
D16
PFUP1394Z-UTPbF
L21
L19
E
Q4
EQ2
EQ5
EQ3
E
Q6 E
Q7
E
Q9
16
1
PC2
D7
123
4
PC3
341
2
PC1
123
4
12
34
56
78
9
KX
-FT
906/
908H
G-B
: A
NA
LOG
BO
AR
D :
BO
TTO
M V
IEW
KX-FT906HG-B / KX-FT908HG-B
176
15.3
. O
PE
RA
TIO
NB
OA
RD
(PC
B3)
15.3
.1.
OP
ER
AT
ION
BO
AR
D:
CO
MP
ON
EN
TV
IEW
KX
-FT
906/
908H
G-B
: O
PE
RAT
ION
BO
AR
D :
CO
MP
ON
EN
T V
IEW
1
SW34
2
SW24
3
SW29
PLAY
SW12
J6
J7 J8
J1
RECO
RDSW
11
ERAS
ESW
17
SW36
4
SW32
5
SW22
6
SW27
7
SW31
8
SW21
9
SW26
SW35
SW33
FLAS
HM
UTE
SP-P
HONE
/MO
NITO
RRE
DIAL
/PAU
SE
SW23
SW28
SW18
0
SW25
#
SW30
J9 J10
J11
J12
J2
J16
J5
1 12CN1
J15J3J4
J13
J14
No 1
No 1
2
SW10
No 2
No 1
3
SW20
No 3
No 1
4
SW6
No 4
No 1
5
SW16
No 5
No 1
6
SW15
No 6
No 1
7SW
39
No 9
No 2
0
SW9
No 8
No 1
9
SW7
No 7
No 1
8
ONE
TO
UCH
DIAL
/ ST
ATIO
N KE
Y
CN2
110
SW8
SW42
LED1
No 1
0RECE
IVE
MO
DESW
41
CALL
ER-ID
SW2
STO
P
SW5
C13
FAX/
STAR
T/SE
TSW
3
COPY
PS1
No 2
1
SW37
No 1
1No
22
SW1
LOW
ER
SW19
UP/V
OL
+
SW14
< PR
EV
SW38
NEXT
>
SW4
DOW
N/VO
L -
NAVI
GAT
OR
SW40
HELP
12
34
56
78
9A
BC
DE
FG
HI
PCB-
CH
SW13
MEN
U
PbF
PFUP
1395
Z-UT
C5
KX-FT906HG-B / KX-FT908HG-B
177
15.3
.2.
OP
ER
AT
ION
BO
AR
D:
BO
TT
OM
VIE
W
KX
-FT
906/
908H
G-B
: O
PE
RAT
ION
BO
AR
D :
BO
TTO
M V
IEW
R11C22R49
C4
R24R48R46C20
IC1
2322
1211
144
34 33
C7C9C6
R45R44
C3
GND
R47C8
R53
FGR3C12C11R5
C10R4
Q1E
BLACKM
IC-M
IC+
R6R7
R8
C16 C19
R17
C15C23R51
R52
R13R15
R14
C17
R12
R10
R9C14
SW44
C18R25
R50
+5V
AG
RED
12
34
56
78
9A
BC
DE
FG
HI
PbFPFUP1395Z-UT
KX-FT906HG-B / KX-FT908HG-B
178
15.4
. P
OW
ER
SU
PP
LY
BO
AR
D(P
CB
4)
15.4
.1.
PO
WE
RS
UP
PL
YB
OA
RD
:C
OM
PO
NE
NT
VIE
W
SECO
NDAR
Y
PRIM
ARY
CAUT
ION
SRF1583EK
T3.15AH 250V
CN31
TH10
1
C106
ZNR1
01
L101
IC10
1
1
C109
C110
C206
C204
D202
R108
PC10
1IC
201
VR20
1Pb
FK
RA
ONL
Y W
ITH
SAM
E T
YPE
AND
RAT
ING
SO
F F
USE.
(F10
1)
R101
C101
F101
D104
D103
R103
L103
R105
D106
D105
D108
R106
T101
R107
R109R104
D102J1
J2
J3
J4
R102C102
C108
C119
C205C202
D201
R203
R202
IC202
C203C201
CN301
1 1
1 7
C105
C103 D101
D107
Q101S
DG
LN
FOR
CO
NTIN
UED
PRO
TECT
ION
AGAI
NST
RIS
K O
F F
IRE.
REP
LACE
KX
-FT
906/
908H
G-B
: P
OW
ER
SU
PP
LY B
OA
RD
:C
OM
PO
NE
NT
VIE
W
15.4
.2.
PO
WE
RS
UP
PL
YB
OA
RD
:B
OT
TO
MV
IEW
PRIMARY
SECONDARY
T3.15AH 250V 68-4
839A
F101
D104
D103
D102
D101 J1
J2
J3
J4
C202
R224D201
C102
C108
R104
R107
R109
R106
L103
D108
T101
C119
C221
C201
247CN301 1
5VG
NDG
ND
R203
R202C203
C106
D105
C123
C125
C124R127
R126
C121
R124
C105
R137
R103
R105
R128R122
R102
C103
R101
C101
ZNR101CN31
L N
TH10
1
R136
L101
R121
G DQ
101
S
R108
C205
IC20
1
R221
PC10
1
KA
R
D202
C206
C204
R222
R225
VR20
1
R223
C110
C122R129
IC10
15
8
1
C109
C126
J5
R125
D107D1
06
IC202
KX
-FT
906/
908H
G-B
: P
OW
ER
SU
PP
LY B
OA
RD
:BO
TTO
M V
IEW
KX-FT906HG-B / KX-FT908HG-B
179
16 FOR THE SCHEMATIC DIAGRAMSNote:
1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.
2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
180
KX-FT906HG-B / KX-FT908HG-B
17 MEMO
181
KX-FT906HG-B / KX-FT908HG-B
18 SCHEMATIC DIAGRAM
18.1. DIGITAL BOARD (PCB1)
(1)
(2)
(3)
(4)
(5)(6)
(7)(8)
(9)
(10)
(11)(12)(14)
(15)(16)
(17)
(18)(19)(20)
(21)(23)
(22)
(24)
(25)
(26)
(27)
(13)
+5VD+24V
C11
Z0.1
u
( )C10
C12
Z0.1
u
+5VA
C13
6.3V
100u
+5VD+24V
DG
+5VA
IC2
1VPP
2 A16
3 A15
4 A12
5 A7
6 A6
7 A5
8 A4
9 A3
10 A2
11 A1
12 A0 13D0 14D1 15D2
16GND
17D3 18D4 19D5 20D6 21D7
22 CE
23 A10
24 OE
25 A11
26 A9
27 A8
28 A1329 A14
30 A17
31PGM
32VCC
C9
Z0.1u
1.5K
2W
R10
BR
1
Q3
Q2
12345
678
R22 4.7K
( )
C4
NC
( )C8
NC
IC81 DIR
2 A1
3 A2
4 A3
5 A4
6 A5
7 A6
8 A7
9 A8
10 GND 11B8
12B7
13B6
14B5
15B4
16B3
17B2
18B1
19G
20VCC
R21
5.6K
+24V
( )
C6
NC
+5VD
+5VD
CN4
1COM
2COM
3GND
4GND
5+5V
6TM
7STB1
8STB2
9STB3
10THCLK
11THLAT
12THDAT
CN6
11
22
R6
NC
1KR4
CN5
11
22
1KR3
4.7KR2
+5VD
4.7KR1
+5VD
( )
( )
R5
NC
0L2
CN7
1FG
2MICIN
3NC
4AG
5+5V
6RESET
7DG
8SCLK
9START
10TXD
11LATCH
12RXD
R7
270BEADL1
L6 BEAD
+5VD
R51
470
Z0.1uC29
C23Z0.1u
(
)
J1
C16Z0.1u
XRESET
R29 22K
Z0.1uC44
(
)(
)
R56
BAT
1
ADR14
+5VD
0R58
+2.5V
R52
100
C28Z0.1u
+2.5V/BATIN
Q5
RA
1 100
1 2 3 45678
Z0.1
u
C51
+2.5V+2.5V/BATIN
C32
Z0.1
u
( )
C46
Q6
( )
C37
NC
( )C47
( )C22
XTEST
RA
4 100
1 2 3 45678
X1
32.768KHz
BR3
( )R37
ADR15
R46 330K
+3.3VD
C35
J15p
+3.3VD
C34
K10
00p
Z0.1uC20
+3.3VD
C25Z0.1u
C48Z0.1u
XNMI
Z0.1
u
C41
C33
K0.
1u
D3
+3.3V/BATIN +3.3V/BATIN
R48
2.2K
R30
43K
C50Z0.1u
( )C21
+3.3VD
C26
K22
00p
C39
J12p
R40
F1.1
K
Z0.1u
C17
R47 4.7M
R354.7K
1KR57
C19
J100
pC
18
Z0.1
u
ADR13
R33
20K
+5VD
+2.5V
C30
K0.1u
R36 33
K
RA
3 100
1 2 3 45678
Z0.1uC31
R55
C40
Z0.1
u
+3.3VA
C38
Z0.1
u
C49
Z0.1u
IC31 VOUT2 VDD3 GND 4VDET
5CE
( )R45
IC1
1V
SS
A2
VD
DA
3.3
3A
IN1
4A
IN2
5A
IN3
6A
MO
N7
VS
SA
8X
32
OU
T9
X3
2IN
103
.3V
/BAT
TIN
11X
BA
CK
EN
12X
RA
MC
S13
3.3
V/B
AT
TO
UT
142
.5V
/BAT
TIN
15F
TG
16F
117
F2
/OP
18FA
/OP
19C
PC
/IP
20R
VN
/IP
21IR
DAT
XD
/IO
P8
122
IRD
AR
XD
/IO
P8
023
TX
D/I
OP
30
24R
XD
/IO
P3
125
XR
TS
/IO
P3
226
XC
TS
/IO
P3
327
VD
D2
.5V
28T
ON
E1
29T
ON
E2
30VO
L1RE
F31
VOL2
OUT
32V
OL
3IN
33X
NM
I34
FMEND0/IOP26
35V
DD
3.3
V36
VS
S
37VSS38
VDD3.3V
39
MIDAT/IOP45
40
MICLK/IOP46
41MILAT/IOP474220KOSC/IOP5643XWAIT/IOP6044XHSTRD/IOP4045XHSTWR/IOP4146XDPRBE/MUX/OP5347ADR15/OP48ADR14/OP49ADR13/OP50VDD2.5V51XOUT52XIN53VSS54VDD3.3V55XTEST56TEST157TEST258TEST359TEST460XMDMINT61XMDMCS62XRAS/IOP4263XCAS1/IOP4364XCAS2/IOP4465XRESCS2/OP7166DB367DB268DB469DB170DB571VDD3.3V72VSS
73V
SS
74VD
D3.
3V75
DB
076
DB
677
DB
778
XR
0M
CS
79X
RD
80X
WR
81A
DR
082
AD
R1
83A
DR
284
AD
R3
85A
DR
486
AD
R5
87V
SS
88V
DD
2.5
V89
AD
R6
90A
DR
791
AD
R8
92A
DR
993
AD
R1
094
AD
R1
195
AD
R1
296
RB
A0
97R
BA
198
RB
A2
99R
BA
310
0R
BA
410
1R
BA
5/O
P10
2R
BA
6/I
OP
96
103
ST
B1
104
ST
B2
105
ST
B3
106
XR
ES
ET
107
VD
D3
.3V
108
VS
S
109 VSS110 VDD3.3V111 XDRESET112 VDD5.0V113 VSS114 XRESETI115 XWDERR116 THDAT117 THCLK118 THLAT119 STBNP120 RM0/IOP00121 RM1/IOP01122 RM2/IOP02123 RM3/IOP03124 RXE/IP04125 TM0/IOP10126 VDD2.5V127 VSS128 TM1/IOP11129 TM2/IOP12130 TM3/IOP13131 TXE/IP14132 KSTART133 KLATCH134 KSCLK135 KTXD136 KRXD137 FMEMCLK/IOP24138 FMEMDI/IOP25139 ADSEL1140 VDDA2.5V141 VREFB142 VCL143 VREFT144 VSSA
C36
Z0.1
uR
32 2.2K
+3.3VD
C43
Z0.1
u
C24Z0.1u
R41
F36K
AMONC15
K1000p
R31
4.7
+3.3VD
+5VA
( )
C80
NC
( )
C83
NC
+2V
0L15
6.3V
47u
C78
0.25A
F2
12K
R88
8.2K
R89( )
C77 NC
+3.3V/BATIN
100
R44
R49
100
+3.3VD
100
R43
100R23
F1
1.25
A
Q4
R20
1.5K 1/2W
+24V
Q1
R11 0
CN3
1COM
2NB
3NA
4B
5A
+5VD
D2
BR4
IC7
1
2
3
4
5
6
7
8GND9
10
11
12
13
14
15
16
R19
820
D1
( )C
5
NC
Z0.1
u
C45
Z0.1
u
C42
Z0.1uC27
+3.3V/BATIN
100R54+5VD
4.7K
R28
K10
00p
C7
( )
R34NC
100L8
100L5
100L4
100L7
K10
00p
C1
( ) NCC2
( )Q12
( )C114 NC
TEST
1KR11
5
+3.3VD
B
A
+24V1
Z0.1u
C120
R42
100
R39
100
R38
100
R27 100
R24 100
R25 100
R26 100
R16100
R13100
R17100
R15
100
R12100
R14100
PG
PGPG
PG
IC41 NC2 A163 A144 A125 A76 A67 A58 A49 A310 A211 A112 A013 I/O114 I/O215 I/O316 GND 17I/O4
18I/O519I/O620I/O721I/O822CE1
23A10
24OE
25A11
26A9
27A8
28A13
29R/W
30CE2
31A15
32VDD
PG
100L3
RA
2 100
1 2 3 45678 R
5010
0
BEADL19
( )
C12
8
NC
BEADL20
CN1
1+5V
2DG
3PG
4PG
5+24V
6+24V
7+24V
XSTB2XSTB1
PWDN
FT
G
XTHDAT
XTHLAT
XSTB3
/MDMCS
XTHCLK
D[0]D[1]D[2]D[3]D[4]D[5]D[6]D[7]
D[0]D[1]D[2]
D[3]D[4]D[5]D[6]D[7]
A[0]A[1]A[2]A[3]A[4]A[5]A[6]A[7]A[8]A[9]A[10]A[11]A[12]RBA[0]RBA[1]RBA[2]RBA[3]RBA[4]
RB
A[5
]
THON
TONE1ENTONE2ENHSRXEN
RXERM[3]RM[2]RM[1]RM[0]
MOT_POS
A[0]A[1]A[2]A[3]A[4]A[5]A[6]A[7]
A[8]A[9]
A[10]
A[11]
RBA[3]
RBA[0]RBA[1]
RBA[2]RBA[4]
/CD
DATA
DCLK
KRXDKTXD
KSTARTKLATCHKSCLK
CIS
SE
L
CIS
LED
F1SIG
CISON
CP
C
HS
TX
MU
TE
BE
LLT
ELR
XE
NP
SH
OR
TM
DM
TX
EN
THON
RLYCUT_POS
/MD
MR
ST
SPMUTE
PCONT
PCONT
OPRESET/DR
RM[2]
RM[0]
RB
A[5
]
RB
A[3
]
A[0
]
A[2
]
A[4
]
A[6
]
A[8
]
A[1
0]
A[1
2]
RB
A[1
]
MOT_POS
CUT_POS
KSCLK
PAPER
KRXD
OPRESET
KSTART
XSTB1
XSTB2
XSTB3
XTHCLK
XTHLAT
XTHDAT
RB
A[4
]
RB
A[2
]
RB
A[0
]
A[1
1]
A[9
]
A[7
]
A[5
]
A[3
]
A[1
]
KLATCH
KTXD
MA
[1]
MA
[2]
MA
[3]
MA
[4]
MA
[0]
RM[3]
RM[1]
RXE
JAM
HOOK
TO POWER UNIT
TO THERMAL HEAD
CUTTORPOSITIONSENSOR
MOTORPOSITIONSENSOR
XWDERR
TO MOTOR
MOTOR BLOCK
THERMAL HEAD BLOCK
4M ROM1M SRAM
OPE-PANEL BLOCK
+5VD TO +3.3VD +3.3VD TO +2.5V +3.3V/BATIN TO +5VA TO +2V+2.5V/BATIN
T5
T4
T3
T2
PRINTING23~24V
STB1
STB2
STB3
LATCH5V
0V
WATCHDOG ERROR
0V (WATCH DOG ERROR OCCUR)
CLOCK
5V0V
THERMALHEAD TEMP
32.768kHz
24MHz
182
KX-FT906HG-B / KX-FT908HG-B
(1)
(2)
(3)
(4)
(5)(6)
(7)(8)
(9)
(10)
(11)(12)(14)
(15)(16)
(17)
(18)(19)(20)
(21)(23)(22)
(24)
(25)
(26)
(27)
(13)
FAX TX
FAX RX
KX-FT906/908HG-B : DIGITAL BOARD (PCB1)
( )
C57 NC
C55
Z0.1
u
100K
R62
R64
0
10KR76
10K
R63
( )R72
NC
+24V1
( )
C53 NC
R66
100
R67
390
2W
BR
2
R65
100
+3.3VD
CN8
1S
IG
2G
ND
3+
3.3
V
4S
I
5C
LK
6G
_L
ED
7V
_L
ED
+3.3VD
R74 10K
Q11
(
)R
60 NC K0.
1u
C56
IC6
1 A11
2 A9
3 A8
4 A135 A14
6 A17
7WE8VDD
9A18
10 A16
11 A15
12 A12
13 A7
14 A6
15 A5
16 A4
17 A3
18 A2
19 A1
20 A0 21D022D123D2
24VSS
25D326D427D528D629D7
30 CE
31 A10
32 OE
+3.3VD
Z0.1
u
C52
R59 47
R61
1M
24.00MHzX2
R10
7
1K
R10
42.
2K
0
R70
Z0.1
uC
71
+5VD
C11
3
16V
10u
R10
8
2.2K
EY
EX
Y
+5VD
R83 0
+5VA
C10
0
Z0.1
u
R11
056
0
R10
9
1K
L11
Z0.1
uC
86
C10
2
16V
10u
C68
J33p
C10
9
16V
10u
(
)R
71
6.8K
R103
( )C75
C66 D8p
C10
1K
0.1u
K0.1u
C96
( )
C63
Q10
C10
8K
0.1u
C11
1
Z0.1
u
Z0.1uC74
C81
Z0.1u
C67
Z0.1
u
C11
0
16V
10u
R11
3
22
C10
7K
0.03
3u
C10
6
Z0.1
u
L12
X3
32.256MHz
C10
3
16V
10u
EY
EC
LK
C10
4
J100
p
(
)N
C
R73
R80180
RA
710
01 2 3 4
5678
R101 100
C76Z0.1u C
93Z0
.1u
RA
810
01 2 3 4
5678
R85 0
L10
C85
Z0.1
u
( )( )
Q8
+3.3VD
( )C69
R11
110
K
R100 100
R11
2
2.7K
K10
00p
C11
2
2.2K
R99
C92 K0.
033u
C94
K0.
1u
R82 4.7K
XCLK
(
)R
75
EY
ES
YN
C
Z0.1
uC
88
C10
5
Z0.1
u
C62 D8p
C99
Z0.1
u
K0.
1u
C95
IC11 NC
1IN
+
2IN
-
3G
S
4V
Ref
5C
AP
6O
SC
1
7O
SC
2
8V
SS
9D
CLK
10
DATA
11
DR
12
CD
13
PW
DN
14
IC1
15
IC2
16
VD
D
R96
(
)
(
)
(
)
(
)(
)
R90
( )C87
IC101
2
3
4
5
6
7 VSS 8
9
10
11
12
13
14VDD
( )X4
R95
+5VA
+5VA
R91
R94
( )C89
+5VA
R102
(
)(
)
R10
5
+5VA
Z0.1uC97
( )C98
( )
( )R98
10KRA9
1 2 3 45678
( )
C91
NC
R10
6
+24V1
SIG
FTG CLK
K10
00p
C3
0
R9
120K
R8
A B
IC91
2
3
4 5
6
7
8
0
L18
36K
R93
+2V
39K
R84
K0.
1u
C82
0L1
3
K0.01u
C59
( )C61
( )C72
+2V0
L14
2.2K
R81
K0.1uC58
16K
R79
+5VA
12KR77
K0.1u
C65
J100
pC
84
47K
R69
0L1
7
330K
R92
K0.1uC60
100K
R78
C73
Z0.1
u
2.2K
R97
( )
C79
2.2K
R68
Q9
( )
C54 NC
Q7
L9
C90
Z0.1
u
K0.
1u
C11
5
330K
R11
4
K33
0p
C11
6
( )
C11
7
NC
IC5
1
SR4IN/RESERVED
2
SR3OUT/RESERVED
3E
YE
SY
NC
4E
YE
CLK
5R
XD
6S
R1IO
7N
C8
EY
EX
Y9
SR
4O
UT
10V
DD
111
RLS
D12
DC
LK
13E
N85
14G
PI0
15R
TS
16D
GN
D1
17T
XD
18S
A1C
LK
19R
S4
20R
S3
21R
S2
22R
S1
23R
S0
24Y
CLK
25IA
CLK
26IA
1C
LK
27C
TR
LS
IN_S
/NC
28R
ES
ER
VE
D/N
C29
SO
UT
_S
/NC
30S
IN_S
/NC
31F
SY
NC
_S
/NC
32IA
RE
SE
T_S
/NC
33A
GN
D1
34LI
NE
IN_S
/NC
35M
ICP
_S
/NC
36M
ICM
_S
/NC
37M
ICB
IAS
_S/N
C
38N
C
39NC40VREF_S/NC41VC_S/NC42VAA_S/NC43LINEOUT_S/NC44NC45AGND246SPKRP_S/NC47SPKRM_S/NC48AVDD_S/NC49RESERVED/NC50ICLK_S/NC51MCLK_P52CTRLSIN_P53RESERVED54SOUT_P55SIN_P56FSYNC_P57IARESET_P58AGND359NC60LINEIN_P61MICP_P62MICM_P63MICBIAS_P64NC
65N
C66
VR
EF
_P
67V
C_P
68V
AA
_P
69LIN
EO
UT
_P
70A
GN
D4
71S
PK
RP
_P
72S
PK
RM
_P
73A
VD
D_P
74N
C75
ICLK
_P
76M
CLK
_S
/NC
77V
DD
278
D7
79D
680
D5
81D
482
D3
83D
284
DG
ND
285
VD
D3
86D
187
DG
ND
388
D0
89C
SB
R90
WR
ITE
91C
S92
RE
AD
93G
PI2
94G
PI3
95G
PI4
96G
PI5
97G
PI6
98G
PI7
99G
PO7
100
VDD
410
1G
PO6
102
GPO
5
103 RESERVED104 GPO4105 GPO3106 DGND4107 CTS108 IRQ1109 GPO2110 GPO1111 GPO0112 VDD5113 VGG114 DGND5115 RESET116 XTALI117 XTALO118 RESERVED119 XCLK120 GPI1121 IRQ2122 SR3IN123 RESERVED124 RESERVED125 DGND6126 DVAA127 AGND5128 RESERVED
15KR116 10KR117
10KR118
(
)(
)
NC
R11
9
NC
R12
0
0R
121
( )
NC
C12
1
( )
NC
C12
2
50V
4.7u
C12
3
( )
C12
4
( )
NC
C12
5
IC121 CD
2 FC2
3 FC1
4 VIN 5VO1
6VCC
7GND
8VO2
K1000pC126
+5VA
CN9
1
2
K0.1uC127
CN2
1 +24V
2 DG
3 +5V
4 PAPER
5 LINETX
6 TONE1
7 RLY
8 CPC
9 JAM
10 P_SHORT
11 BELL
12 HOOK
13 LINERX
14 MONRX
15 H/STX_MUTE
16 H/SRX
C64
K47
00p
J680
pC
70
120K
R12
2
1
120K
R12
3
1
27KR124
K0.1u
C129
D4
A[10]
RBA[1]
RBA[4]
A[9]
D[3]A[2]
RBA[3]
D[0]
A[5]D[6]
A[11]
A[0]
RBA[2]
A[12]
D[7]A[7]
D[1]
A[3]
RBA[5]
A[6]
D[2]
A[8]
RBA[0]
A[1]
A[4] D[4]D[5]
D[2
]
MA
[4]
MA
[3]
D[3
]
D[0
]
MA
[2]
D[1
]
MA
[0]
D[4
]M
A[1
]D
[5]
D[7
]D
[6]
TELRXEN
TONE1EN
DC
LK
HSRXEN
/CD
MDMTXEN
PW
DN
DAT
A
/DR
CIS
LED
CIS
SE
L
/MDMRST
/MDMCS
HOOK
F1
FT
G
CIS
ON
SIG
TON
E2E
N
D[7]
D[6]
D[0]
D[5]D[1]D[4]D[2]D[3]
SPMUTE
HSTXMUTE
BELL
PSHORT
JAM
CPC
RLY
PAPER
TO CIS
4M FLASHfor VOICE
TAD MODEL ONLY
FM209 OR FM209VS
TAD MODEL ONLY
TO ANALOG
CIS BLOCK
CIS LED ARRAYON: 3.3VOFF: 0V
CIS PowerON: 0VOFF: 3.3V
32.256MHz
2.1V
183
KX-FT906HG-B / KX-FT908HG-B
18.2. ANALOG BOARD (PCB2)
FAX TX Signal
FAX RX Signal
+5V
+5V
+2.0V
+5V
+24V
+5V
+12V
PC1NC ( )A
KE
C
+5V
+5V
+24VA
5
67
12
34
8
+12V
+24VA +24V
+2.0V
C16
(
)N
C
C1K0.01u
C21K0.039u
C14
K3900p
C3
NC
(
)
C18 NC
(
)
K0.1u
C12
C17K0.039u
C8
J120p
C31
K0.
047u
C7
Z0.
1u
J39pC24
C28 NC
(
)
C2
K0.01u
C5
K0.01u
C27 NC
(
)
C19
K0.
068u
K0.022u
C26
C34 NC
(
)
C9( )NC
C13
D10p
C20
Z0.
1u
C25
Z0.1u
K0.047u
C11
D10
p
C22
50V
4.7u
C29
C15
16V
10u
C30
NC( )
C6
6.3V
47u C
10 NC
(
)
50V4.7u
C4
L1
11A102
L2
0
L7
11A102
L6 0
L80
L411A102
L5
0
L3
11A102
L9
0
12KR30
R33
NC( )
R12
4.7KR3
100
R27
NC (
)
R8
10K
39K
R22
R24
120K
R21
220K
R44.7K
R15
75K
0
R5
R37 NC
(
)
R40
0
R31
NC( )
R11 120K
R26
10K
R7
100
R46 NC
(
)
R9
10K
360KR25
R28
220
1/4W
R20
220K
R29 0
R23
4.7K
27K
R16
R14
0
22K
R35
R64.7K
R38 NC
(
)
R1
100
R1875K
R1375K
R10
150K
4.3K
R34
68K
R17
6.8K
R32
D3
5.6V
D2
5.6VD1 4.7V
Q1
Q6NC
( )
Q2
Q3
Q5NC
( )
Q7NC
( )
Q4NC
( )
SW2
1 234
T2
( )NC
1234
6
T1
1
234
5
CN1
1+24V
2AG
3+5V
4PAPER
5LINETX
6TONE1
7RLY
8CPC
9JAM
10P_SHORT
11BELL
12HOOK
13LINERX
14MONRX
15H/STX_MUTE
16H/SRX
SW11234
SW31234
(
) D15
NC
R2 10K
Immunity countermeasure part
IC3-1
IC3-2
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(14)
(13)
+2V
FAX TX
+12V
JAM SWNO PAPER: 5V PAPER: 0VPEPAR SW
NO PAPER: 5VPAPER: 0V
HOOK SWON-HOOK: 5V
OFF-HOOK: 0V
2V
BELL DETECT5V0V
184
KX-FT906HG-B / KX-FT908HG-B
FAX TX Signal
FAX RX Signal
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(14)
(13)
2.5V
0V5V
CPC DETECT
RLY1-1
35
4
+5V
RLY1-2
12
+24V
+5V
+5V
PC2AK
KAE
C
+2.0V
5
67
+5V
PC3NC ( )
A
KE
C
+5V
12
34
8
+2.0V+5V
CN4
1 a
2 b
CN5
1 b
2 a
C65
K0.
01u
C56
K0.01u
C52 K0.1u
C46
(
)N
C
Z0.1u
C37
250V1u
C48
C53 K0.1u
C41
J220p
C49
NC( )
C45
D10PK0.1u
C32
C61
K0.
01u
C50
NC( )
C51
K4700p
(
)
C43 NC
J100pC38
C40
K0.1u
(
)C
57 NC
C63
K0.
01u
C39 NC
(
)
C62
6.3V
47u
C55
6.3V
47u
C58
16V10u
L15
0
L120
L10
11A102
L11
0
L30 0
L24 BEAD
L29 0
L19( )
NC
L28 0
L26
21A601
21A601
21A601
L32
L22 BEAD
L130
L33
L31 0
L25 BEAD
L23 BEAD
L21( )
NC
L14 0
L170
L18
0
L27
21A601
JJ2
JJ3
R57
10K 1/2W
R70
1.5K
22
R66
R672.2K
12K
R61
R47
18K
1/2
W
R55
330
R59 NC
(
)
R63 3.3K
R44
2.2K
R52
120 2W
R512.2K
R54
300K
R56
300K
R64 3.3K36K
R36
R43 NC
(
)
R65
47K
R39
NC( )
2.2K
R45
R48
NC( )
R71
1.5K
560KR49
330
R73
R58
6.8K
R53 NC
(
)
R68
220 1/4W
D12
D6
NC( )
D14
D13
D7 NC
( )1
2 3
4
D4
0
D5
0
0
F1
POS1
SA2
3000V
SA
130
0V/3
10V
ZNR1
NC(
)
Q8NC
( )
Q9
Q10
L20
NC
( )1
2 3
4
FLT3NC 1
2
3
45
6
7
8CN3
1 HSMIC-
2 HSSP-
3 HSSP+
4 HSMIC+
0R79
K0.01u
C74
Q11
K0.1u
C76
(
)R
80 NC
10K
R81
( )R82
NC( )R83
NC
T3 NC
( )1
2 3
45
DA1 NC
( )
1A 2K
1K2A
1MR84
0
R60
PC41
23
4
L340
(
)D
16
(
)N
C
R85
IC2-2
IC2-1
KX-FT906/908HG-B : ANALOG BOARD (PCB2)
185
KX-FT906HG-B / KX-FT908HG-B
18.3
. O
PE
RA
TIO
NB
OA
RD
(PC
B3)
( )
SW
44
1 234
C4
Z0.1u( )
R11330
R4
560K
R8
330
+5V
0R
44
+5V
R24
00R
46
C15
Z0.1u
+5V
R15( )
NC
R14
560
( )K330p C6
C12
K0.01u
0R
48
C3
Z0.1u
R25
4.7
+5V
Q1
+5V
R5
22K
R1256K
R9
100
C18
Z0.22u
C11
K0.
1u
+5V
C16
Z0.1u
C13
6.3V47u
FG
R7
330
PS
1A K
C E
LED1
C5
6.3V220u
0R
45
C19
K0.01u
R6
6.8K
R13
27K
+5V
C9
K330p
( )C20J120p
+5V
C10
K68
0p
CN2
1DG
2+5V
3V0
4RS
5RWB
6E
7D4
8D5
9D6
10D7
R17
270
R10
4.7K
+5V
IC1
1KSL22LED63KIN14LED75XLED86XLED97KIN28KIN39XLED1010KSL311KIN4
12
KIN
51
3K
IN6
14
KIN
71
5X
LE
D1
21
6X
LE
D1
11
7V
DD
-17
18
VS
S-1
81
9X
LE
D1
32
0X
LE
D1
42
1X
LE
D1
52
2L
ED
1
23 RS24 RWB25 E26 D427 D528 D629 D730 RESET31 SCLK32 RXD33 TXD
34
LAT
CH
35
STA
RT
36
LE
D2
37
LE
D3
38
LE
D4
39
VS
S-3
94
0V
DD
-40
41
LE
D5
42
KIN
04
3K
SL
04
4K
SL
1
C14
K0.01u
R3
3.3K
C17
Z0.22u( )
+5V
SW
1
LO
WE
R
SW
2
ST
OP
SW
3
CO
PY
SW
4
DO
WN
/VO
L -
SW
5
FAX
/STA
RT
/SE
T
SW
6
No
4/
No
15
SW
7
No
7/
No
18
SW
8
No
10
/ N
o 2
1
SW
9
No
8/
No
19
SW
10
No
2/
No
13
SW
11
RE
CO
RD
SW
12
PL
AY
SW
13
ME
NU
SW
14
< P
RE
V
SW
15
No
6/
No
17
SW
16
No
5/
No
16
SW
17
ER
AS
E
SW
18
SP
-PH
ON
E/M
ON
ITO
R
SW
19
UP
/VO
L +
SW
20
No
3/
No
14
SW
21
8
SW
22
5
SW
23
RE
DIA
L/P
AU
SE
SW
24
2
SW
25
0
SW
26
9
SW
27
6
SW
28
MU
TE
SW
29
3
SW
30
#
SW
31
7
SW
32
4
SW
33
FL
AS
H
SW
34
1
SW
35
*
SW
36
No
1/
No
12
SW
37
No
11
/ N
o 2
2
SW
38
NE
XT
>
SW
39
No
9/
No
20
SW
40
HE
LP
SW
41
CA
LL
ER
-ID
SW
42
RE
CE
IVE
MO
DE
K0.01u C22
K0.01u C23
+5V 4.7K R50
4.7K R52+5V
100
R49
100
R51
MIC
+
MIC
-
CN
1
1T
xD
2L
atc
h
3R
xD
4S
tart
5S
CL
K
6D
G
7R
ese
t
8+
5V
9A
G
10
NC
11
MIC
IN
12
FG
C8
J120p
0R
47
C7
K330p
0 R53
KSL0
KSL1
KSL2
KSL4
KSL3
KS
L0
KIN0
KS
L3
KIN7
KIN6
KS
L4
KS
L2KIN5
KIN4
KIN3
KIN2
KIN1
KIN0
KIN1
KIN2KIN3
KIN4
KIN5KIN6KIN7
KS
L1K
SL1
DO
CU
ME
NT
TO
P S
W
DO
CU
ME
NT
S
ET
SW
TO L
CD
TO D
IGIT
AL
TO M
IC
KX
-FT
906/
908H
G-B
: O
PE
RA
TIO
N B
OA
RD
(P
CB
3)
0V3.
3V
+2.5
V
5V 0V
PA
PE
R 5
V 0V
NO
PA
PE
R 5
V
LC
DC
ON
TR
AS
T
PA
PE
R 0
VN
O P
AP
ER
5V
LE
D O
N :
0V
OF
F :
5V
KX-FT906HG-B / KX-FT908HG-B
186
18.4
. P
OW
ER
SU
PP
LY
BO
AR
D(P
CB
4)
D10
3D
104
C106
56/450
C203
470/16
C119 R106
47p 47/2
R13
622
0K
R13
722
0K
R102
390K
R103
390K
R121
10K
C108
1000P/1K
C201
470/35
R202
3.3K/2
R225VR201R224
27K 5K 3.3K
R222
R221
2.2K
2.2KPC101
D105
L103
R10
9
10
C105
2200pF
R126
82K
C122
0.22/10C123
0.01
C109
22/50
D10
2
C10
2
0.1 C
103
1000
p
L101
ZN
R10
1
R10
1
1M 1
/2
750V
LN
CN
311
GN
D
R12
7
PC
101
C12
4
0.47
/10
1.8K
C10
1
0.22
F101
T3.15A250V
D10
1
R10
5
0.22
/2
C12
1
4700
p
C12
547
0p
45
36
27
18
R12
2
270
(D10
7)(R
125)
IC10
1
D10
8R
108
15
IC20
2R128
100
D106
Q10
1
G
(R10
4)
R10
715
0K/2
T10
1T
RA
NS
D20
11
24V
224
V
324
V
4G
ND
CN
301
5G
ND
6G
ND
75V
C20
2
1000
p/1K D
202
(C20
6)
C11
0
(C221)
2200
p
R22
3
IC20
1
C20
5
1/50
100
D S
R203
471/2
C204
47/35
TH
101
R12
4
180
C126
0.1/50
Cyc
le =
15.
4 µs
-55V25
V
0V
Cyc
le =
15.
4 µs
-20V10
V
0V
Cyc
le =
15.
4 µs
-40V20
V
0V
Cyc
le =
15.
4 µs
500V
0V
KX-F
T906
/908
HG-B
: PO
WER
SUP
PLY
BOAR
D (P
CB4)
Cyc
le =
15.
4 µs
6V
0V
KX-FT906HG-B / KX-FT908HG-B
187
188
KX-FT906HG-B / KX-FT908HG-B
K.NKXFT906HGBKXFT908HGB