Tv Silvania 6313ce

SERVICE MANUALMain SectionI SpecificationsI Preparation for ServicingI Adjustment ProceduresI Schematic DiagramsI CBAsI Exploded ViewsI Parts List

When servicing the deck mechanism, refer to MK12.5 Deck Mechanism Section.

Deck Mechanism Part No.: N2226FT

13" COLOR TV/VCR COMBINATION

EWC1304 SC313E 6313CE

IMPORTANT SAFETY NOTICEProper service and repair is important to the safe, reliable operation of allFunai Equipment. The service procedures recommended by Funai anddescribed in this service manual are effective methods of performing serviceoperations. Some of these service special tools should be used when and asrecommended.

It is important to note that this service manual contains various CAUTIONSand NOTICES which should be carefully read in order to minimize the risk ofpersonal injury to service personnel. The possibility exists that improper ser-vice methods may damage the equipment. It also is important to understandthat these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE. Funai could notpossibly know, evaluate and advice the service trade of all conceivable waysin which service might be done or of the possible hazardous consequences ofeach way. Consequently, Funai has not undertaken any such broad evalua-tion. Accordingly, a servicer who uses a service procedure or tool which is notrecommended by Funai must first use all precautions thoroughly so that nei-ther his safety nor the safe operation of the equipment will be jeopardized bythe service method selected.

MAIN SECTION

13" COLOR TV/VCR COMBINATION

EWC1304/SC313E/6313CE

TABLE OF CONTENTSSpecifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1-1Important Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2-1Standard Notes for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3-1Preparation for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4-1Cabinet Disassembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5-1Electrical Adjustment Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6-1 Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7-1Mechanical Trouble Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7-7Power Supply Trouble Shooting Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7-9Schematic Diagrams / CBAs and Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8-1Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9-1Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10-1System Control Timing Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11-1IC Pin Function Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12-1Lead Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13-1Cabinet Exploded Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-1Packing Exploded Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-3Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15-1Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16-1

Main SectionI SpecificationsI Preparation for ServicingI Adjustment ProceduresI Schematic DiagramsI CBAsI Exploded ViewsI Parts List

1-1-1 T5553SP

SPECIFICATIONS*Mode---------SP mode unless otherwise specified*Test input terminal -------------Video input (1Vp-p) Audio input (-10dB) -----------------------Ant. input (80dBV) Video: 87.5% Audio: 25kHz dev (1kHz Sin)

Description Condition Unit Nominal Limit

1. Over Scan % 90 5

2. Linearity Horizontal % 15

Vertical % 10

3. High Voltage kV 22


1. Misconvergence Center m/m 0.3

Corner m/m 1.5

Side m/m 1.2

2. Tint Control Range deg 30

3. Contrast Control Range dB 12 8

4. Brightness APL 100% ft-L 55 40

5. Color Temperature K 9200


1. Horizontal Resolution (R/P) Line 230 2002. Jitter (Low) (R/P) S 0.05 0.23. S/N Chroma AM(SP) (R/P) dB 38 33 PM(SP) (R/P) dB 36 334. Wow & Flutter (RMS) (R/P) % 0.25 0.5


1. Video S/N dB 45 40

2. Audio S/N (W/LPF) dB 43 40

1-1-2 T5553SP

All items are measured across 8 resistor at speaker output terminal.

Note: Nominal specifications represent the design specifications. All units should be able to approximate these.Some will exceed and some may drop slightly below these specifications. Limit specifications represent the abso-lute worst condition that still might be considered acceptable. In no case should a unit fail to meet limit specifica-tions.


1. Audio Output Power (Max.) (R/P) W 1.0 0.82. Audio S/N (W/LPF) (R/P) dB 40 363. Audio Distortion (W/LPF) (R/P) % 3.0 5.04. Audio Freq. Response (-10dB Ref. 1KHz)

200Hz (R/P)8kHz (R/P)

dBdB

-2.00

-2.05.006.0

1-2-1 SFTY_2

IMPORTANT SAFETY PRECAUTIONSPrior to shipment from the factory, our products are strictly inspected for recognized product safety and electricalcodes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equallyimportant to implement the following precautions when a set is being serviced.

Safety Precautions for TV Circuit 1. Before returning an instrument to the custom-

er, always make a safety check of the entire instru-ment, including, but not limited to, the followingitems:

a. Be sure that no built-in protective devices are de-fective and have been defeated during servicing.(1) Protective shields are provided on this chassisto protect both the technician and the customer.Correctly replace all missing protective shields, in-cluding any removed for servicing convenience. (2)When reinstalling the chassis and/or other assem-bly in the cabinet, be sure to put back in place allprotective devices, including but not limited to,nonmetallic control knobs, insulating fishpapers,adjustment and compartment covers/shields, andisolation resistor/capacitor networks. Do not oper-ate this instrument or permit it to be operatedwithout all protective devices correctly in-stalled and functioning. Servicers who defeatsafety features or fail to perform safety checksmay be liable for any resulting damage.

b. Be sure that there are no cabinet openings throughwhich an adult or child might be able to insert theirfingers and contact a hazardous voltage. Suchopenings include, but are not limited to, (1) spacingbetween the picture tube and the cabinet mask, (2)excessively wide cabinet ventilation slots, and (3)an improperly fitted and/or incorrectly securedcabinet back cover.

c. Antenna Cold Check - With the instrument ACplug removed from any AC source, connect anelectrical jumper across the two AC plug prongs.Place the instrument AC switch in the on position.Connect one lead of an ohmmeter to the AC plugprongs tied together and touch the other ohmme-ter lead in turn to each tuner antenna input ex-posed terminal screw and, if applicable, to thecoaxial connector. If the measured resistance isless than 1.0 megohm or greater than 5.2 mego-hm, an abnormality exists that must be correctedbefore the instrument is returned to the customer.Repeat this test with the instrument AC switch inthe off position.

d. Leakage Current Hot Check - With the instru-ment completely reassembled, plug the AC linecord directly into a 120V AC outlet. (Do not use anisolation transformer during this test.) Use a leak-

age current tester or a metering system that com-plies with American National Standards Institute(ANSI) C101.1 Leakage Current for Appliancesand Underwriters Laboratories (UL) 1410, (50.7).With the instrument AC switch first in the on posi-tion and then in the off position, measure from aknown earth ground (metal water pipe, conduit,etc.) to all exposed metal parts of the instrument(antennas, handle brackets, metal cabinet, screwheads, metallic overlays, control shafts, etc.), es-pecially any exposed metal parts that offer an elec-trical return path to the chassis. Any currentmeasured must not exceed 0.5 milli-ampere. Re-verse the instrument power cord plug in the outletand repeat the test.

ANY MEASUREMENTS NOT WITHIN THE LIMITSSPECIFIED HEREIN INDICATE A POTENTIALSHOCK HAZARD THAT MUST BE ELIMINATEDBEFORE RETURNING THE INSTRUMENT TOTHE CUSTOMER OR BEFORE CONNECTINGTHE ANTENNA OR ACCESSORIES.

e. X-Radiation and High Voltage Limits - Becausethe picture tube is the primary potential source ofX-radiation in solid-state TV receivers, it is special-ly constructed to prohibit X-radiation emissions.For continued X-radiation protection, the replace-ment picture tube must be the same type as theoriginal. Also, because the picture tube shieldsand mounting hardware perform an X-radiationprotection function, they must be correctly in place.High voltage must be measured each time servic-

DEVICELEAKAGECURRENT

TESTER

ALSO TEST WITHPLUG REVERSEDUSING ACADAPTER PLUGAS REQUIRED

TEST ALL EXPOSEDMETAL SURFACES

READING SHOULDNOT BE ABOVE 0.5 mA

EARTHGROUND

BEINGTESTED

1-2-2 SFTY_2

ing is performed that involves B+, horizontal de-flection or high voltage. Correct operation of theX-radiation protection circuits also must be recon-firmed each time they are serviced. (X-radiationprotection circuits also may be called "horizontaldisable" or "hold down.") Read and apply the highvoltage limits and, if the chassis is so equipped,the X-radiation protection circuit specifications giv-en on instrument labels and in the Product Safety& X-Radiation Warning note on the service datachassis schematic. High voltage is maintainedwithin specified limits by close tolerance safety-re-lated components/adjustments in the high-voltagecircuit. If high voltage exceeds specified limits,check each component specified on the chassisschematic and take corrective action.

2. Read and comply with all caution and safety-relat-ed notes on or inside the receiver cabinet, on thereceiver chassis, or on the picture tube.

3. Design Alteration Warning - Do not alter or addto the mechanical or electrical design of this TV re-ceiver. Design alterations and additions, including,but not limited to circuit modifications and the ad-dition of items such as auxiliary audio and/or videooutput connections, might alter the safety charac-teristics of this receiver and create a hazard to theuser. Any design alterations or additions will voidthe manufacturer's warranty and may make you,the servicer, responsible for personal injury orproperty damage resulting therefrom.

4. Picture Tube Implosion Protection Warning -The picture tube in this receiver employs integralimplosion protection. For continued implosion pro-tection, replace the picture tube only with one ofthe same type number. Do not remove, install, orotherwise handle the picture tube in any mannerwithout first putting on shatterproof gogglesequipped with side shields. People not soequipped must be kept safely away while picturetubes are handled. Keep the picture tube awayfrom your body. Do not handle the picture tube byits neck. Some "in-line" picture tubes are equippedwith a permanently attached deflection yoke; be-cause of potential hazard, do not try to removesuch "permanently attached" yokes from the pic-ture tube.

5. Hot Chassis Warning - a. Some TV receiver chassis are electrically connect-

ed directly to one conductor of the AC power cordand maybe safety-serviced without an isolationtransformer only if the AC power plug is insertedso that the chassis is connected to the ground sideof the AC power source. To confirm that the ACpower plug is inserted correctly, with an AC volt-meter, measure between the chassis and a known

earth ground. If a voltage reading in excess of 1.0Vis obtained, remove and reinsert the AC powerplug in the opposite polarity and again measurethe voltage potential between the chassis and aknown earth ground.

b. Some TV receiver chassis normally have 85VAC(RMS) between chassis and earth ground re-gardless of the AC plug polarity. This chassis canbe safety-serviced only with an isolation transform-er inserted in the power line between the receiverand the AC power source, for both personnel andtest equipment protection.

c. Some TV receiver chassis have a secondaryground system in addition to the main chassisground. This secondary ground system is not iso-lated from the AC power line. The two ground sys-tems are electrically separated by insulationmaterial that must not be defeated or altered.

6. Observe original lead dress. Take extra care to as-sure correct lead dress in the following areas: a.near sharp edges, b. near thermally hot parts-besure that leads and components do not touch ther-mally hot parts, c. the AC supply, d. high voltage,and e. antenna wiring. Always inspect in all areasfor pinched, out of place, or frayed wiring. CheckAC power cord for damage.

7. Components, parts, and/or wiring that appear tohave overheated or are otherwise damagedshould be replaced with components, parts, or wir-ing that meet original specifications. Additionally,determine the cause of overheating and/or dam-age and, if necessary, take corrective action to re-move any potential safety hazard.

8. Product Safety Notice - Some electrical and me-chanical parts have special safety-related charac-teristics which are often not evident from visualinspection, nor can the protection they give neces-sarily be obtained by replacing them with compo-nents rated for higher voltage, wattage, etc.. Partsthat have special safety characteristics are identi-fied by a ( # ) on schematics and in parts lists. Useof a substitute replacement that does not have thesame safety characteristics as the recommendedreplacement part might create shock, fire, and/orother hazards. The Product's Safety is under re-view continuously and new instructions are issuedwhenever appropriate. Prior to shipment from thefactory, our products are strictly inspected to con-firm with the recognized product safety and electri-cal codes of the countries in which they are to besold. However, in order to maintain such compli-ance, it is equally important to implement the fol-lowing precautions when a set is being serviced.

1-2-3 SFTY_2

Precautions during Servicing A. Parts identified by the ( # ) symbol are critical for

safety.Replace only with part number specified.

B. In addition to safety, other parts and assembliesare specified for conformance with regulations ap-plying to spurious radiation. These must also bereplaced only with specified replacements.Examples: RF converters, RF cables, noise block-ing capacitors, and noise blocking filters, etc.

C. Use specified internal wiring. Note especially: 1) Wires covered with PVC tubing 2) Double insulated wires 3) High voltage leads D. Use specified insulating materials for hazardous

live parts. Note especially: 1) Insulation Tape 2) PVC tubing 3) Spacers 4) Insulators for transistors. E. When replacing AC primary side components

(transformers, power cord, etc.), wrap ends ofwires securely about the terminals before solder-ing.

F. Observe that the wires do not contact heat produc-ing parts (heatsinks, oxide metal film resistors, fus-ible resistors, etc.)

G. Check that replaced wires do not contact sharpedged or pointed parts.

H. When a power cord has been replaced, check that5~6 kg of force in any direction will not loosen it.

I. Also check areas surrounding repaired locations. J. Use care that foreign objects (screws, solder drop-

lets, etc.) do not remain inside the set. K. Crimp type wire connector

When replacing the power transformer in setswhere the connections between the power cordand power transformer primary lead wires are per-formed using crimp type connectors, in order toprevent shock hazards, perform carefully and pre-cisely the following steps.Replacement procedure

1) Remove the old connector by cutting the wires ata point close to the connector. Important: Do not re-use a connector (discard it).

2) Strip about 15 mm of the insulation from the endsof the wires. If the wires are stranded, twist thestrands to avoid frayed conductors.

3) Align the lengths of the wires to be connected. In-sert the wires fully into the connector.

4) Use the crimping tool to crimp the metal sleeve atthe center position. Be sure to crimp fully to thecomplete closure of the tool.

L. When connecting or disconnecting the VCR con-nectors, first, disconnect the AC plug from AC sup-ply socket.

1-2-4 SFTY_2

Safety Check after ServicingExamine the area surrounding the repaired locationfor damage or deterioration. Observe that screws,parts and wires have been returned to original posi-tions. Afterwards, perform the following tests and con-firm the specified values in order to verify compliancewith safety standards.

1. Clearance DistanceWhen replacing primary circuit components, confirmspecified clearance distance (d) and (d') between sol-dered terminals, and between terminals and surround-ing metallic parts. (See Fig. 1)

Table 1 : Ratings for selected area

Note: This table is unofficial and for reference only.Be sure to confirm the precise values.

2. Leakage Current TestConfirm the specified (or lower) leakage current be-tween B (earth ground, power cord plug prongs) andexternally exposed accessible parts (RF terminals,antenna terminals, video and audio input and outputterminals, microphone jacks, earphone jacks, etc.).Measuring Method : (Power ON)Insert load Z between B (earth ground, power cordplug prongs) and exposed accessible parts. Use anAC voltmeter to measure across both terminals of loadZ. See Fig. 2 and following table.

Table 2 : Leakage current ratings for selected areas

Note: This table is unofficial and for reference only. Be sure to confirm the precise values.

AC Line Voltage Region Clearance Distance (d) (d')110 to 130 V USA or CANADA

3.2 mm (0.126 inches)

Chassis or Secondary Conductor

dd'

Primary Circuit Terminals

Fig. 1

Fig. 2

AC Voltmeter(High Impedance)

Exposed Accessible Part

B One side of Power Cord Plug Prongs

Z

AC Line Voltage Region Load Z Leakage Current (i) Earth Ground (B) to:

110 to 130 V USA or CANADA0.15F CAP. & 1.5k

RES. connected in parallel

i0.5mA rms Exposed accessible parts

1-3-1 SFTY_Z13N

STANDARD NOTES FOR SERVICINGCircuit Board Indications1. The output pin of the 3 pin Regulator ICs is indi-

cated as shown:

2. For other ICs, pin 1 and every 5th pin is indicatedas shown:

3. The 1st pin of every pin connector are indicated asshown:

Instructions for Connectors1. When you connect or disconnect FFC cable (con-

nector), be sure to disconnect the AC cord.2. FFC cable (connector) should be inserted parallel

into the connector, not at an angle.

[ CBA= Circuit Board Assembly ]

How to Read the Values of the Rect-angular Type Chip ComponentsExample:(a) Resistor

(b) Capacitor

Caution:Once chip parts (Resistors, Capacitors, Transistors,etc.) are removed, they must not be reused. Alwaysuse a new part.

Pb (Lead) Free SolderPb free mark will be found on PCBs used Pb freesolder. (Refer to figure.) For PCBs with Pb freemark, be sure to use Pb free solder. For PCBswithout Pb free mark, use standard solder.

Replacement Procedures for Leadless (Chip) ComponentsThe Following Procedures are Recom-mended for the Replacement of the Lead-less Components Used in this Unit.1. Preparation for replacementa. Soldering Iron

Use a pencil-type soldering iron (less than 30watts).

b. SolderEutectic solder (Tin 63%, Lead 37%) is recom-mended.

c. Soldering timeDo not apply heat for more than 4 seconds.

Top View

Out In

Bottom ViewInput

5

10

Pin 1

Pin 1

FFC Cable

Connector

CBA

* Be careful to avoid a short circuit.

(Top View)

473= 473 = 47 [k]

(Top View)= Not Shown

Pb free mark

1-3-2 SFTY_Z13N

d. PreheatingLeadless capacitor must be preheated beforeinstallation. (130C~150C, for about two minutes.)

Notes:a. Leadless components must not be reused after

removal.b. Excessive mechanical stress and rubbing for the

component electrode must be avoided.2. Removing the leadless componentGrasp the leadless component body with tweezersand alternately apply heat to both electrodes. Whenthe solder on both electrodes has melted, removeleadless component with a twisting motion.

Notes:a. Do not attempt to lift the component off the board

until the component is completely disconnectedfrom the board by the twisting action.

b. Take care not to break the copper foil on the printedboard

3. Installing the leadless componenta. Presolder the contact points of the circuit board.b. Press the part downward with tweezers and solder

both electrodes as shown below.

Note:Do not glue the replacement leadless component tothe circuit board.

How to Remove / Install Flat Pack ICCaution:1. The Flat Pack-IC shape may differ by models. Use

an appropriate hot-air flat pack-IC desolderingmachine, whose shape matches that of the FlatPack-IC.

2. Do not apply the hot air to the chip parts around theFlat Pack-IC for over 6 seconds as damage mayoccur to the chip parts. Put Masking Tape aroundthe Flat Pack-IC to protect other parts from dam-age. (Fig. S-1-2)

3. The Flat Pack-IC on the CBA is affixed with glue, sobe careful not to break or damage the foil of eachpin or solder lands under the IC when removing it.

1. RemovalWith Hot - Air Flat Pack - IC Desoldering Machine:a. Prepare the Hot - Air Flat Pack - IC Desoldering

Machine, then apply hot air to Flat Pack - IC (about5~6 seconds). (Fig. S-1-1)

b. Remove the Flat Pack- IC with tweezers whileapplying the hot air.

With Soldering Iron:a. Using desoldering braid, remove the solder from all

pins of the Flat Pack - IC. When you use solder fluxwhich is applied to all pins of the Flat Pack - IC, youcan remove it easily. (Fig. S-1-3)

b. Lift each lead of the Flat Pack - IC upward one byone, using a sharp pin or wire to which solder willnot adhere (iron wire). When heating the pins, usea fine tip soldering iron or a hot air DesolderingMachine. (Fig. S-1-4)

With Iron Wire:a. Using desoldering braid, remove the solder from all

pins of the Flat Pack - IC. When you use solder fluxwhich is applied to all pins of the Flat Pack - IC, youcan remove it easily. (Fig. S-1-3)

b. Affix the wire to a workbench or solid mountingpoint, as shown in Fig. S-1-5.

c. Pull up on the wire as the solder melts so as to liftthe IC leads from the CBA contact pads, whileheating the pins using a fine tip soldering iron orhot air blower.

Chip

Tweezers

Soldering Iron

Soldering IronTweezers

Solder

Soldering Iron

Presolder

1-3-3 SFTY_Z13N

Note:When using a soldering iron, care must be takento ensure that the Flat Pack - IC is not being heldby glue, or when it is removed from the CBA, itmay be damaged if force is used.

2. Installationa. Using desoldering braid, remove the solder from

the foil of each pin of the Flat Pack - IC on the CBA,so you can install a replacement Flat Pack - ICmore easily.

b. The "I" mark on the Flat Pack - IC indicates pin 1(See Fig. S-1-6). Make sure this mark matches the1 on the CBA when positioning for installation.Then pre - solder the four corners of the Flat Pack-IC (See Fig. S-1-7).

c. Solder all pins of the Flat Pack - IC. Make sure thatnone of the pins have solder bridges.

Fig. S-1-1

Fig. S-1-2

Hot-airFlat Pack-ICDesolderingMachineCBA

Flat Pack-IC

Tweezers

Masking Tape

Fig. S-1-3

Flat Pack-IC Desoldering Braid

Soldering Iron

Fig. S-1-4

Fine TipSoldering Iron

SharpPin

Fig. S-1-5

To Solid Mounting Point

Soldering Iron

Iron Wire

or

Hot Air Blower

1-3-4 SFTY_Z13N

Instructions for Handling SemiconductorsElectrostatic breakdown of the semiconductors mayoccur due to a potential difference caused by electro-static charge during unpacking or repair work.

Ground for Human BodyBe sure to wear a grounding band (1M) that is prop-erly grounded to remove any static electricity that maybe charged on the body.

Ground for Work BenchBe sure to place a conductive sheet or copper platewith proper grounding (1M) on the work bench orother surface, where the semiconductors are to beplaced. Because the static electricity charge on theclothing will not escape through the body groundingband, be careful to avoid contacting semiconductors toclothing.

Fig. S-1-6

Example :

Pin 1 of the Flat Pack-ICis indicated by a " " mark.

Fig. S-1-7

Presolder

CBA

Flat Pack-IC

CBA

Grounding Band

Conductive Sheet orCopper Plate

1M

1M

CBA

1-4-1 T5553PFS

PREPARATION FOR SERVICINGHow to Enter the Service ModeCaution: 11. Optical sensors system are used for Tape Start and

End Sensor on this equipment. Read this pagecarefully and prepare as described on this pagebefore starting to service; otherwise, the unit mayoperate unexpectedly.

Preparing: 11. Cover Q202 (START SENSOR) and Q201 (END

SENSOR) with Insulation Tape or enter the servicemode to activate Sensor Inhibition automatically.

Note: Avoid playing, rewinding or fast forwarding thetape to its beginning or end, because both Tape EndSensors are not active. How to Enter the Service Mode1. Turn power on.2. Use service remote control unit and press WAKE-

UP/SLEEP key. (See page 1-6-1)3. When entering the service mode, one of the num-

ber (1, 2 or 4) will display at corners of the screen.4. During the service mode, electrical adjustment

mode can be selected by remote control key (ser-vice remote control unit).Details are as follows.

Caution: 21. The deck mechanism assembly is mounted on the

Main CBA directly, and SW211 (REC-SAFETYSW) is mounted on the Main CBA. When deckmechanism assembly is removed from the MainCBA due to servicing, this switch can not be oper-ated automatically.

Preparing: 21. To eject the tape, press the STOP/EJECT button

on the unit (or Remote Control).2. When you want to record during the Service mode,

press the Rec button while depressing SW211(REC-SAFETY SW) on the Main CBA.

Key Adjustment Mode

MENU

Picture adjustment mode: Press the MENU button to change from BRT (Bright), *CNT (Contrast), *COL (Color), *TNT(Tint) and *V-T. Press CH UP/DOWN key to display Initial Value. *Marked items are not necessary to adjust normally.

0

C-Trap and Y DL Time TV/Y DL Time EXT/Y SW LPF/Black Stretch Off/ Black Stretch CONT/C. Angle adjustment mode: See adjustment instructions page 1-6-2 and 1-6-3.

1 No need to use.

2 H adjustment mode: See adjustment instructions page 1-6-2.3 No need to use.

4Auto record mode: Perform recording (15 Sec.)-->Stop-->Rewind (Zero return) automatically.

5Head switching point adjustment mode: See adjustment instructions page 1-6-6.

6 No need to use.

7Purity check mode: Shows Red, Green, Blue or White cyclically on the screen each time the "7" key is pressed.

8 H. Shift adjustment mode: See adjustment instructions page 1-6-4.

9 V.size/V. shift adjustment: See adjustment instructions page 1-6-4.

VOL pInitial Setting mode: See adjustment instructions page 1-6-1.Cut-off Adjustment mode: See adjustment instructions page 1-6-4.

Key Adjustment Mode

MAIN CBA

Q201(END SENSOR)

SW211(REC-SAFETY SW)

Q202(START SENSOR)

1-5-1 T5500DC

CABINET DISASSEMBLY INSTRUCTIONS1. Disassembly FlowchartThis flowchart indicates the disassembly steps for thecabinet parts and the CBA in order to gain access toitem(s) to be serviced. When reassembling, follow thesteps in reverse order. Bend, route and dress thecables as they were.Caution !When removing the CRT, be sure to discharge theAnode Lead of the CRT with the CRT Ground Wirebefore removing the Anode Cap.

2. Disassembly Method

(1): Order of steps in Procedure. When reassembling,follow the steps in reverse order. These numbersare also used as the Identification (location) No. ofparts in Figures.

(2): Parts to be removed or installed.(3): Fig. No. showing Procedure of Part Location.(4): Identification of part to be removed, unhooked,

unlocked, released, unplugged, unclamped, ordesoldered.S=Screw, P=Spring, L=Locking Tab, CN=Connec-tor, *=Unhook, Unlock, Release, Unplug, or Desol-der2(S-2) = two screws (S-2)

(5): Refer to the following Reference Notes in theTable.

Reference Notes in the Table1. Removal of the Rear Cabinet.

Remove screws 4(S-1) and (S-2).Caution !Discharge the Anode Lead of the CRT with the CRTGround Wire before removing the Anode Cap.2. Removal of the Tray Chassis.

Discharge the Anode Lead of the CRT with theCRT Ground Wire before removing the Anode Cap.Disconnect the following: Anode Cap, CN505, CRTCBA, CN601, CN571 and CN801. Then, pull theTray Chassis backward.

3. Removal of the Deck Unit. Remove screws 7(S-3), (S-4) and (S-5). Then, des-older connectors (CL201, CL401, CL402, CL403)and lift up the Deck Unit.

4. Removal of the Main CBA. Remove screws 5(S-6) and (S-7). Then, pull up theMain CBA.

5. Removal of the CRT. Remove screws 4(S-8) and pull the CRT backward.

ID/LOC.No.

PART

REMOVAL

Fig.No.

REMOVE/*UNHOOK/UNLOCK/RELEASE/UNPLUG/DESOL-DER

Note

[1] Rear Cabinet 1, 2 4(S-1), (S-2) 1

[2] Tray Chassis 3, 5Anode Cap, CN505, CRT CBA, CN601, CN801, CN571

2

[3] Deck Unit 3, 57(S-3), (S-4), (S-5), Desolder (CL201, CL401, CL402, CL403)

3

[4] Main CBA 3, 5 5(S-6), (S-7) 4[5] CRT 4 4(S-8) 5(1)

(2)

(3)

(4)

(5)

[5] CRT

[4] Main CBA

[3] Deck Unit

[2] Tray Chassis

[1] Rear Cabinet

1-5-2 T5500DC

S-1

[1] REAR CABINET

S-1

S-2

Fig. 1

Fig. 2

[1] REAR CABINET

S-1

S-2

S-1S-1

S-1

1-5-3 T5500DC

Fig. 3

[2] TRAY CHASSIS

[3] DECK UNIT

S-3S-3

S-3

[4] MAIN CBA

S-6

S-5 S-4

S-6

S-6

S-6

S-7

1-5-4 T5500DC

Fig. 4

S-8

S-8

S-8

S-8

ANODE CAP.

[5] CRT

CRT CBA

1-5-5 T5500DC

Fig. 5

CL502A

CL501A

SCREEN

CN505

CN801 CN601

CN571

FOCUS CRT CBA

AC CORD

CL403

FE HEAD

CYLINDER ASSEMBLY

ACE HEADASSEMBLY

CAPSTANMOTOR

DECK UNIT

MAIN CBA

CL401

CL502B

CL201

CL402

CL501B

CRT

ANODE

GND

TO SPEAKER

TO DEGAUSS COIL

1-6-1 T5553EA

ELECTRICAL ADJUSTMENT INSTRUCTIONSGeneral Note: "CBA" is abbreviation for "Circuit Board Assembly."NOTE: Electrical adjustments are required after replacing cir-cuit components and certain mechanical parts.It is important to perform these adjustments only afterall repairs and replacements have been completed.Also, do not attempt these adjustments unless theproper equipment is available.

Test Equipment Required1. NTSC Pattern Generator (Color Bar W/White Win-

dow, Red Color, Dot Pattern, Gray Scale, Mono-scope, Multi-Burst)

2. AC Milli Voltmeter (RMS)3. Alignment Tape (FL8A, FL8N), Blank Tape4. DC Voltmeter5. Oscilloscope: Dual-trace with 10:1 probe,

V-Range: 0.001~50V/Div,F-Range: DC~AC-60MHz

6. Frequency Counter7. Plastic Tip Driver

How to make service remote controlunit:1. Prepare remote control unit. (Part No. N0107UD or

N0150UD) Remove 3 screws from the back lid.(Fig. 1-1)

2. Remote control unit: Part No. N0107UDAdd J1 (Jumper Wire) to the remote control CBA.(Fig. 1-2)

Remote control unit: Part No. N0150UDCut off pin 10 of the remote control microprocessorand short circuit pins 10 and 17 of the microproces-sor with a jumper wire.

Note: The remote control with the unit cannot be usedas service remote control unit.

How to Set up the Service mode:Service mode:1. Use the service remote control unit.2. Turn the power on. 3. Press "WAKE-UP/SLEEP" button on the service

remote control unit.

1. DC 105V (+B) AdjustmentPurpose: To obtain correct operation.Symptom of Misadjustment: The picture is dark andunit does not operate correctly.

Note: D613 Cathode (+B), C613(-) (GND), VR601 --- Main CBA

1. Connect the unit to AC Power Outlet.2. Connect DC Volt Meter to D613 Cathode (+B) and

C613(-) (GND).3. Adjust VR601 so that the voltage of D613 Cathode

(+B) becomes +1050.5V DC. 2. Initial SettingGeneral 1. Enter the Service mode. (See page 1-4-1) 2. Press "VOL p" button on the service remote control

unit. Display changes "C/D," "7F," "FM," "ACCESSCODE," "9V," and "RC5" cyclically when "VOL p"button is pressed.

3. To set each data value shown below, press "CH o/ p" buttons on the service remote control unit. 7F --- Set to "FF."FM --- Set to "OFF."ACCESS CODE --- Set to "OFF."9V --- Set to "OFF."RC5 --- Set to "OFF."

Note: C/D data value does not need to be adjusted atthis moment.

SCREW

Fig. 1-1Remote control unit (Bottom)

J 1

Fig. 1-2Remote control CBA

J 1

Fig. 1-2Remote control CBA

Test point Adj. Point Mode InputD613

Cathode(+B)

C613(-)(GND)

VR601 --- -----

Tape M. EQ. Spec.

---

DC VoltmeterPlastic Tip Driver +1050.5V DC

1-6-2 T5553EA

3-1. H AdjustmentPurpose: To get correct horizontal position and size ofscreen image.Symptom of Misadjustment: Horizontal position andsize of screen image may not be properly displayed.

Note: R583 --- Main CBA1. Connect Frequency Counter to R583.2. Set the unit to the VIDEO mode and no input is

necessary. Enter the Service mode. (See page 1-4-1.)

3. Operate the unit for at least 20 minutes.4. Press "2" button on the remote control unit and

select H-Adj mode. (Press "2" button, then displaywill change H-Adj and AGC.)

5. Press "CH o / p" buttons on the remote controlunit so that the display will change "0" to "7." At this moment, choose display "0" to "7" when theFrequency counter display is closest to15.734kHz300Hz.

6. Turn the power off and on again.

3-2. C-Trap AdjustmentPurpose: To get minimum leakage of the color signalcarrier.Symptom of Misadjustment: If C-Trap Adjustment isincorrect, stripes will appear on the screen.

Note: J271 (B-Out)--- Main CBA1. Connect Oscilloscope to J271.2. Input a color bar signal from RF input.

Enter the Service mode. (See page 1-4-1.) 3. Press "0" button on the remote control unit and

select C-TRAP mode. 4. Press "CH o / p" buttons on the remote control

unit so that the carrier leakage B-Out (3.58MHz)value becomes minimum on the oscilloscope.


Test point Adj. Point Mode Input

R583 CH o / p buttons Video ---

Tape M. EQ. Spec.

--- Frequency Counter 15.734kHz300Hz

Test point Adj. Point Mode InputJ271

(B-OUT)CH o / p buttons --- Color Bar

Tape M. EQ. Spec.

---

OscilloscopePattern Generator ---

Figure

minimum

Fig. 2

1-6-3 T5553EA

3-3. Y DL Time TV/Y DL Time EXT/Y SW LPF/Black Stretch Off/ Black Stretch CONT/C. Angle Adjustment

Purpose: To get minimum leakage of the color signalcarrier.Symptom of Misadjustment: If Y DL Time Adjust-ment is incorrect, stripes will appear on the screen.1. Enter the Service mode. (See page 1-4-1.) 2. Y DL Time TV Adjustment: Press "0" button on

the service remote control unit twice to show "D-TTV" on the display.Y DL Time EXT Adjustment: Press "0" button onthe service remote control unit three times to show"D-T EXT" on the display.Y SW LPF Adjustment: Press "0" button on theservice remote control unit four times to show "YSW" on the display.Black Stretch Off Adjustment: Press "0" buttonon the service remote control unit five times toshow "B-S" on the display.Black Stretch CONT Adjustment: Press "0" but-ton on the service remote control unit six times toshow "BS2" on the display.C. Angle Adjustment: Press "0" button on the ser-vice remote control unit seven times to show "C-ANG" on the display.

3. Y DL Time TV Adjustment: Select "2" by pressing"CH o / p" buttons on the service remote control.Y DL Time EXT Adjustment: Select "2" by press-ing "CH o / p" buttons on the service remote con-trol.Y SW LPF Adjustment: Select "1" by pressing"CH o / p" buttons on the service remote control.Black Stretch Off Adjustment: Select "OFF" bypressing "CH o / p" buttons on the service remotecontrol.Black Stretch CONT Adjustment: Select "0" bypressing "CH o / p" buttons on the service remotecontrol.C. Angle Adjustment: Select "103" by pressing"CH o / p" buttons on the service remote control.

"0" button

C-TRAP Adjustment (Factory mode)CH buttonC-TRP 0 C-TRP 1

buttonCH

Y DL Time TV AdjustmentCH buttonD-T TV 0 D-T TV 1

buttonCH

"0" button

Y DL Time EXT AdjustmentCH buttonD-T EXT 0 D-T EXT 1

buttonCH

"0" button

Y SW LPF Adjustment"0" button

CH buttonY SW

buttonCH

0 Y SW

"0" button

1

Black Stretch Off AdjustmentCH buttonB-S OFF

buttonCH

B-S 0

Black Stretch CONT AdjustmentCH buttonBS2 0

buttonCH

"0" button

BS2 1

C. Angle AdjustmentCH buttonC-ANG 103

buttonCH

"0" button

C-ANG 95

1-6-4 T5553EA

4. V. Size AdjustmentPurpose: To obtain correct vertical height of screenimage.Symptom of Misadjustment: If V. Size is incorrect,vertical height of image on the screen may not beproperly displayed.

1. Enter the Service mode. (See page 1-4-1.) Press "9" button on the remote control unit andselect V-S mode. (Press "9" button then display willchange to V-P and V-S).

2. Input monoscope pattern.3. Press "CH o / p" buttons on the remote control

unit so that the monoscope pattern is 905% of dis-play size and the circle is round.

5. V. Shift AdjustmentPurpose: To obtain correct vertical position of screenimage.Symptom of Misadjustment: If V. position is incor-rect, vertical position of image on the screen may notbe properly displayed.

1. Enter the Service mode. (See page 1-4-1.) Press "9" button on the remote control unit andselect V-P mode. (Press "9" button then display willchange to V-P and V-S).


unit so that the top and bottom of the monoscopepattern are equal to each other.

6. H. Shift AdjustmentPurpose: To obtain correct horizontal position andsize of screen image.Symptom of Misadjustment: Horizontal position andsize of screen image may not be properly displayed.

1. Enter the Service mode. (See page 1-4-1.) Press "8" button on the remote control unit andselect H-P mode.


unit so that the left and right side of the monoscopepattern are equal to each other.


7. Cut-off AdjustmentPurpose: To adjust the beam current of R, G, B, andscreen voltage.Symptom of Misadjustment: White color may bereddish, greenish or bluish.


---

CH o / p buttons --- Monoscope

Tape M. EQ. Spec.

--- Pattern Generator 905%


---


Tape M. EQ. Spec.



---


Tape M. EQ. Spec.



--- Screen-Control Ext.Black

Raster / White Raster

Tape M. EQ. Spec.

--- Pattern Generator See Reference Notes below

Figure

PATTERN GENERATOR

EXT. INPUT

Fig. 3

1-6-5 T5553EA

Notes: Screen Control FBT --- MAIN CBA F.B.T= Fly Back Transformer Use the Remote Control Unit1. Degauss the CRT and allow CRT to operate for 20

minutes before starting the alignment.2. Set the screen control to minimum position. Input

the Black raster signal from RF input.3. Enter the Service mode. (See page 1-4-1.)

Dimmed horizontal line appears on the CRT. 4. Press the "VOL p" button.

(Press "VOL p" then display will change CUT OFF/DRIVE adjustment).

5. Choose CUT OFF/DRIVE mode then press "1" but-ton. This adjustment mode is CUT OFF (R).

6. Press the "CH o / p" button until the horizontal linebecomes white.

7. Choose CUT OFF/DRIVE mode then press "2" but-ton. This adjustment mode is CUT OFF (G). Press"CH o / p" until the horizontal line becomes white.

8. Choose CUT OFF/DRIVE mode then press "3" but-ton. This adjustment mode is CUT OFF (B). Press"CH o / p" until the horizontal line becomes white.

9. Input the White Raster Signal from Video In.10.Choose CUT OFF/DRIVE mode then press "4."

Adjust the RED DRIVE as needed with the "CH o /p" buttons to get the following value, X= 286, Y=294.

11.Choose CUT OFF/DRIVE mode then press "5."Adjust the BLUE DRIVE as needed with the "CH o/ p" buttons to get the following value, X= 286.

12.Turn the power off and on again.

8. Sub-Brightness AdjustmentPurpose: To get proper brightness.Symptom of Misadjustment: If Sub-Brightness isincorrect, proper brightness cannot be obtained byadjusting the Brightness Control.

Note: SYMPTE Setup level --- 7 IRE1. Enter the Service mode. (See page 1-4-1.)

Then input SYMPTE signal from RF input. 2. Press MENU button. (Press MENU button then dis-

play will change BRT, CNT, COL, TNT and V-T).Select BRT and press "CH o / p" buttons so thatthe bar is just visible (See above figure).



---

CH o / p buttons ---

SYMPTE 7.5IRE

Tape M. EQ. Spec.

---

PatternGenerator See below

Figure

BlackWhite

This barjustvisible

Fig. 4

1-6-6 T5553EA

9. Focus AdjustmentPurpose: Set the optimum Focus.Symptom of Misadjustment: If Focus Adjustment isincorrect, blurred images are shown on the display.

Note: Focus VR (FBT) --- MAIN CBA FBT= Fly Back Transformer1. Operate the unit more than 30 minutes.2. Face the unit to the East and degauss the CRT

using a Degaussing Coil.3. Input the monoscope pattern.4. Adjust the Focus Control on the FBT to obtain clear

picture.

10. Head Switching Position AdjustmentPurpose: Determine the Head Switching Point duringPlayback.Symptom of Misadjustment: May cause HeadSwitching Noise or Vertical Jitter in the picture.Note: Unit reads Head Switching Position automati-cally and displays it on the screen (Upper Left Corner).1. Insert the test tape (FL8A, FL8N).2. Set the unit to the stop condition.3. Enter the Service mode. (See page 1-4-1.)4. Press "PAUSE" button on the remote control unit.5. Confirm that indication of OSD is 6.5H.

11. CCS Text Box LocationWhen replacing the CRT, the CCS Box might not stayin appropriate position. Then, replace micro computer.Note: This adjustment automatically done by themicrocomputer.

The following 2 adjustments normally are notattempted in the field. They should be doneonly when replacing the CRT then adjust as apreparation.

12.Purity AdjustmentPurpose: To obtain pure color.Symptom of Misadjustment: If Color Purity Adjust-ment is incorrect, large areas of color may not beproperly displayed.

* This becomes RED COLOR if push 7KEY with aservice mode.

1. Set the unit facing east.2. Operate the unit for over 30 minutes before adjust-

ing.3. Fully degauss the unit using an external degauss-

ing coil.4. Set the unit to the AUX mode which is located

before CH2 then input a red raster from video in.5. Loosen the screw on the Deflection Yoke Clamper

and pull the Deflection Yoke back away from thescreen. (See Fig. 6.)

6. Loosen the Ring Lock and adjust the Purity Mag-nets so that a red field is obtained at the center ofthe screen. Tighten Ring Lock. (See Fig. 5,6.)

7. Slowly push the Deflection Yoke toward the bell ofthe CRT and set it where a uniform red field isobtained.

8. Tighten the clamp screw on the Deflection Yoke.

Test point Adj. Point Mode Input--- Focus Control --- Monoscope

Tape M. EQ. Spec.

--- Pattern Generator See below.Test point Adj. Point Mode Input

---

Deflection Yoke Purity Magnet --- *Red Color

Tape M. EQ. Spec.

--- Pattern Generator See below.

Figure

BLUEGREEN RED

Fig. 5

1-6-7 T5553EA

13. Convergence AdjustmentPurpose: To obtain proper convergence of red, greenand blue beams.Symptom of Misadjustment: If Convergence Adjust-ment is incorrect, the edge of white letters may havecolor edges.

1. Set the unit to the AUX mode which is locatedbefore CH2 then input a Dot or crosshatch pattern.

2. Loosen the Ring Lock and align red with blue dotsor Crosshatch at the center of the screen by rotat-ing (RB) C.P. Magnets. (See Fig. 7.)

3. Align red / blue with green dots at the center of thescreen by rotating (RB-G) C.P. Magnet. (See Fig. 8.)

4. Fix the C.P. Magnets by tightening the Ring Lock.5. Remove the DY Wedges and slightly tilt the Deflec-

tion Yoke horizontally and vertically to obtain thebest overall convergence.

6. Fix the Deflection Yoke by carefully inserting the DYWedges between CRT and Deflection Yoke.


---

C.P. Magnet (RB),C.P. Magnet (RB-G),

Deflection Yoke---

Dot Pattern or

Crosshatch

Tape M. EQ. Spec.

--- Pattern Generator See below.

Figure

DY WEDGE

DEFLECTION YOKE

C.P. MAGNET

RING LOCK

SCREW

SCREW RB-GRBPURITYCRT

COIL

COIL CLAMPER

C.P. MAGNET CLAMPER

Fig. 6

Fig. 7

Fig. 8

B

G

R R

G

B

C.P. MAGNET (RB)

RB

GRBG

C.P. MAGNET (RB-G)

1-7-1

BLOCK DIAGRAMSServo/System Control Block Diagram

T5500BLS

CONT

ROL

HEA

D

CL40

2 A

C HE

AD A

SSEM

BLY

MA

IN C

BA

KEY

1

ST-S

ENS.

T-R

EEL

KEY

0

DV-

SYNC

C-SY

NCC-

SYNC

V-EN

V

REM

OTE

CTL(+

)

RES

ET

RO

TA

D-R

EC-H

D-R

EC-H

REC

-SAF

ETY

A-M

UTE

SCL

SDA

A-M

UTE

CTL(-

)

DV-

SYNC

V-EN

VR

OTA

END

-SEN

S.

IC20

1(S

ERVO

/SYS

TEM

CONT

ROL)

14 9495 9 7 80 34

15101374 3344657265

RS2

01R

EMOT

ESE

NSO

R

CTL

AMP

OUT

97

AL+5

V

D20

3S-

LED

CTL

TP20

1

(DEC

K A

SSEM

BLY)

END

-SEN

S.T-

REE

LST

-SEN

S.Q2

02Q2

06Q2

01

Q205

RES

ETTI

MER

+5V

SP-M

UTE

SP-M

UTE

12

SW21

1R

EC SAFE

TY

TO

VID

EO B

LOCK

TO AUDI

O B

LOCK

KEY

SWIT

CH

KEY

SWIT

CH

SW20

1

SW20

4,SW

206

SCL

(MEM

ORY)

SDA

6 5

REC

LED

22R

EC L

ED23

P-D

OW

N84

P-O

N-H

P-D

OW

NP-

ON-

H31

D20

4R

ECAL

+5V

LD-S

W1

I2 C-O

PEN

4571

SW21

2LD

-SW

CS7

TO

POW

ER S

UPPL

Y BL

OCK

SW20

5,SW

207

SW

210

SDA

SCL

TO

CHRO

MA

/TUN

ERBL

OCK

SDA

SCL

IC20

2

WF3

22

CTL(+

)1

1CT

L(-)

M

M

LOAD

ING

MO

TOR

CYLI

NDER

ASS

EMBL

YCA

PSTA

N M

OTO

R

SENS

OR

CBA

(ST-

SENS

OR)

SENS

OR

CBA

(END

-SEN

SOR)

DR

UMM

OTO

R

PG SENS

OR

CL20

1

C-FG

C-CO

NT

D-P

FG907687

LD-C

ONT

82D

-CO

NT77

P-O

N+12

VP-

ON+

5V

MCA

PSTA

NM

OTO

RC-

F/R

66

D/L

+12V

DEF

+B

AFT-

INAF

T-IN

8IF

-MUT

EIF

-MUT

E21

1P-

ON+

12V

2P-

ON+

5V(2)

3C-

FG4

C-F/

R5

C-CO

NT6

FG-G

ND7

LD-C

ONT

8D

-CO

NT9

D-P

FG10

M-G

ND11

D/L

+12V

12D

/L+1

5V

26FM

/TV-

SWFM

/TV-

SW

YCA-

SOUT

YCA-

SCLK

YCA-

CS686970

YCA-

SCLK

YCA-

CSYC

A-SO

UT

RF-

SW18

RF-

SW

1-7-2 T5500BLV

Video Block Diagram

LUM

INAN

CESI

GNA

L PR

OCE

SS

MA

IN C

BA

(D

ECK

ASSE

MBLY

)

V(R)

V-CO

MV(

L)

CL40

11 2 3

VID

EOAG

CR

P

FBC

Y/C

MIX

CCD

1HD

ELAY

R P

YNR

/CO

MB

FILT

ER

CHRO

MIN

ANCE

SIG

NAL

PRO

CESS

IC40

1(V

IDEO

SIG

NAL P

ROCE

SS/ H

EAD

AMP)

26

REC

VID

EO S

IGNA

L PB

VID

EO S

IGNA

LM

ODE

: SP/

REC

57

QV/Q

H

6dB

AMP

TO SERV

O/S

YSTE

MCO

NTRO

L BL

OCK

TO SERV

O/S

YSTE

MCO

NTRO

L BL

OCK

RF-

SW

RF-

SW

59V-

ENVT

P202

DV-

SYNC

DV-

SYNC

53 24

YCA-

SCLK

3637

3934

Q402

BUFF

ER

54YC

A-SO

UT

55YC

A-CS

SERI

ALI/F

VCA

CLAM

P

69 70

SP HEAD

AMP

727374

V-EN

V

RO

TA

C-RO

T/RF

-SW

WF1

JK70

1FR

ONT

V-IN

42 30

TO

CHRO

MA/

TUNE

RBL

OCK

32TU

-VID

EOLI

NE-

VID

EO

WF4

TUNE

R

LIN

E

Q401

TP30

1V-

OUT

BUFF

ER

VID

EO

WF5

TP40

2V-

ENV

14 WF6

4950

X401

3.58

MHz

VXO

WF2

VID

EO (R

) HEA

D

VID

EO (L

) HEA

D

1-7-3

Audio Block Diagram

T5500BLA

BLO

CK D

IAG

RAM

FO

R SE

CTIO

N 2

(DEC

K ME

CHAN

ISM)

MA

IN C

BA

PB-A

UDIO

SIG

NAL

REC

-AUD

IO S

IGNA

L

IC30

1(CHR

OM

A/DE

FLEC

TIO

N SI

GNA

L PR

OCE

SS)

IC40

1

Mod

e : S

P/RE

C

BIAS

OSC

Q872

P-O

N+5VP-

ON+

5V

Q871

Q873

Q874

Q875

(AUD

IO S

IGNA

L PR

OCE

SS)

IC80

1 (A

MP)

SPEA

KER

1SP

-GND

2

JK80

1EA

RPH

ONE

JAC

K

SP80

1SP

EAKE

R

CN80

1CL

802

SP-M

UTE

TU-A

UDIO

TO CHRO

MA/

TUNE

RBL

OCK

TP40

1A-

OUT

AUDI

O

HEA

D

AC H

EAD

ASSE

MBL

Y

A-CO

MA-

PB/R

ECCL

402

AUDI

O

ERAS

EH

EAD

AE-H

AE-H

/FE-

H

2 1FE

-HFE

-H-G

NDFU

LL

ERAS

EH

EAD

CL40

3

3 4 6

FE

HEA

D U

NIT

SERI

AL

I/FAU

DIO

ATT

SDA

SCL

TO SERV

O/S

YSTE

M

CONT

ROL

BLO

CK

TUNE

R

REC

AMP

AUTO

BIAS

LIN

EAM

PM

UTE

PRALC

TUNE

R

LIN

E

D-R

EC-H

A-M

UTE

TO

SERV

O/

SYST

EM

CONT

ROL

BLO

CK

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EQ AMP

SP/L

P-O

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5

24 14 15 26 21

LIN

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R

106

89

58

11

5

43

7876 2

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E/S

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P6

1

JK70

2FR

ONT

A-IN

WF9

TO

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O/S

YSTE

M

CONT

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CK

1-7-4

Chroma/Tuner Block Diagram

T5500BLC

X301

3.58

MHz

CL50

2B

SAW

FILT

ER

SF00

1

IC30

1(C

HRO

MA/

DEFL

ECTI

ON

SIG

NAL

PRO

CESS

)

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1

IF

AGC

SDA

SCL

FSC

111 5 4 8

IC20

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M CO

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SD-G

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-B

59 5860626364

OSD

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TU-A

UDIO

IF-M

UTE

TO A

UDIO

BLO

CK

TO SERV

O/ S

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M

CONT

ROL

BLO

CK

TU V

IDEO

TO V

IDEO

BLO

CK

LIN

E-VI

DEO

TO VID

EO B

LOCK

VID

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BL

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CL50

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TO CRT/

H.V.

BL

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IVE

SDA

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IN

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TO SERV

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REC

VID

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LPB

VID

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ode

: SP

/REC

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18

34358931 131011121514

4 532 40 41

166202523

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IGEN

TM

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CHRO

MA

BPF

SYNC

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SIG

NAL

PRO

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CIRC

UIT

H-S

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CIRC

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KIN

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VXCO

CF03

1

CF03

2

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F/B

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SIG

NAL P

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SS)

VIF

AMP

VID

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DET VC

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5MH

z FI

LTER

LPF

IF A

GC

DET

EQ

AMP

RF

AGC

AMP

AFT

4.5M

Hz

TRAP

FM

DET

AF

AMP

16 1113

6

174

2 7

1 9

14

C-SY

NC

LIN

EVC

R

VCR

LIN

E

REDF

M/T

V-SW

WF7

1-7-5

CRT/H.V. Block Diagram

T5500BLCRT

PUM

P UP

AMP

THER

MAL

PROT

ECTI

ON

V-D

RIV

EH

-DR

IVE

GRE

EN A

MP

BLUE

AM

P

Q511

Q521

Q531

H.D

RIV

EQ5

72

Q571

T572

AFC

ACL

V- DR

IVE

H-

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IVE

L551

DEF

LECT

ION-

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IC55

1(V-

DEF

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ION

CONT

ROL)

T571

F.B.

T.AN

ODE

FOCU

SSC

REEN

MA

IN C

BA

CRT

CBA

R G B HEAT

ER

ANO

DE

GND

V501

CRT

GND

FOCU

SSC

REEN

JK50

1

CN50

5

CL50

1ACL

501B

REC

VID

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IGNA

LPB

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L

CN57

1

TO

CHRO

MA/

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R BL

OCK

FOCU

S VR

SCRE

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R

TO

CHRO

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R BL

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CL5

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+B

TO

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ER S

UPPL

Y BL

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D

EF+B

H.O

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T

V-RA

MP-

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5 4 3 1W

F12

WF1

5W

F14

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6

WF1

3

RED

AM

P

Mod

e : S

P/RE

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2A

VCC

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7 1

32

5

1 5 3 4

697108

11SFHV

33

HEA

TER

11

+16

0V

2R

ED3

GRE

EN4

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1-7-6

Power Supply Block Diagram

T5500BLP

6 4 2 1

12 11 10 9 7 8

LIN

EFI

LTER

BRID

GE

REC

TIFI

ER

T601

IC60

1ER

ROR

VOLT

AGE

DET

W60

1

F601

4A/1

25V

L601

D60

3 - D

606

SWIT

CHIN

G

Q604

VR60

1

DEG

AUSS

ING

COIL

CN60

1

Q601

+B

ADJ.

FEED

BACK

LIM

ITER

Q602

PS60

1

41

32

HOT

COLD

Q606

Q605

Q607

DG

601

AL+3

3V

P-O

N+5V

MA

IN C

BA

NOT

E :

The

volta

ge fo

r pa

rts in

hot

circ

uit i

s m

easu

red

usin

gho

t GND

as

a co

mm

on te

rmin

al.

4A/1

25V

TIM

ER+5

V

P-D

OWN

(TO P

IN84

OF

IC20

1)

P-O

N-O

N

P-O

N+5V

P-O

N+5V

P-O

N+8V

AL+1

2V

P-O

N+12

VAL

+5V

P-O

N-H

(TO P

IN31

OF

IC20

1)

+5V

REG

.

+5V

REG

.

+5V

REG

.

+5V

REG

.

+8V

REG

.

IC60

2Q6

08

Q611

Q610

Q609

Q612

+5.

7VR

EGUL

ATO

R

IC30

1

3027

+B DEF

+B

HO

T CI

RCUI

T. B

E CA

REFU

L.

FOR

CONT

INUE

D PR

OTE

CTIO

N AG

AINS

T RI

SK O

F FI

RE,

REP

LACE

ONL

Y W

ITH

SAM

E TY

PE 4

A, 1

25V

FUSE

.CA

UTIO

N:

ATT

ENTI

ON:

UT

ILIS

ER U

N FU

SIBL

E DE

REC

HANG

E DE

MM

E TY

PE D

E 4A

, 125

V.4A

/125

V

CAUT

ION

!Fi

xed

volta

ge ( o

r Auto

volta

ge se

lectab

le ) p

ower

supp

ly cir

cuit i

s use

d in t

his un

it.If

Mai

n Fu

se (F

601)

is blo

wn, c

heck

to se

e tha

t all c

ompo

nents

in th

e pow

er su

pply

circ

uit a

re n

ot d

efec

tive

befo

re y

ou c

onne

ct th

e AC

plu

g to

the

AC p

ower

sup

ply.

O

ther

wis

e it

may

cau

se s

ome

com

pone

nts

in th

e po

wer s

uppl

y cir

cuit

to fa

il.

+5V

REG

.Q6

13P-

ON+

5V

1-7-7 T5553MTI

MECHANICAL TROUBLE INDICATOR1, Each Malfunction IndicationIf the MONITOR is turned ON right after the Mechani-cal Malfunction occurs or POWER SAFETY is turnedON, display the following character to show Malfunc-tion after the EJECT display.

Example: If REEL Malfunction

2, Each Malfunction evaluationmethodP-SAFETY 1 protectIf P-SAFETY 1 port becomes continuously 2.5V ormore for 120 msec. (4 times 40 msec. interval), theunit shall immediately turn OFF the POWER/MONI-TOR and switch over to the Mechanical Malfunctionmode with POWER OFF.(To return from this mode shall become possible onlyby POWER Key as in the case of the Mechanical Mal-function).

POWER SAFETY1) POWER SAFETY 2

If P-SAFETY 2 port becomes continuously 2.5V orless for 120 msec. (4 times 40 msec. interval) whenP-ON-H port is ON, the unit shall be assumed to bethe Power Malfunction 2 and immediately turn OFFthe POWER/MONITOR and switch over theMechanical Malfunction mode with POWER OFF.(Shall not unload)(To return from this mode shall become possibleonly by POWER Key as in the case of the Mechan-ical Malfunction).* However the POWER SAFETY 2 function shall bedisabled during 500 msec. right after the P-ON-Hturns ON.

2) POWER SAFETY 3If P-SAFETY 3 port becomes continuously 2.5V orover for 120 msec. (4 times 40 msec. interval)when MONITOR is ON, P-SAFETY 3 function isavailable. After that, if P-SAFETY 3 port becomescontinuously 2.5V or less for 120 msec. (4 times 40msec. interval), the unit shall be assumed to be thePower Malfunction 3 and immediately turn OFF thePOWER/MONITOR and switch over the Mechani-cal Malfunction mode with POWER OFF.(Shall not unload)(To return from this mode shall become possibleonly by POWER Key as in the case of the Mechan-ical Malfunction).

Immediately preceding Malfunction Display character

REEL Malfunction RDRUM Malfunction DCASSETTE LOADING Mal-function C

TAPE LOADING Malfunction TP-SAFETY 2 2P-SAFETY 3 3P-SAFETY 1 1

EJECT R

1-7-8 T5553MTI

Mechanical Malfunction determination1) REEL Malfunction detection

Countermeasure for REEL and CAPSTAN motorrotation malfunction (Except CASSETTE LOAD-ING function)After the Malfunction detection with REEL/CAP-STAN sensor, the unit shall switch over to STOP(B) and be REEL Mechanical Malfunction.

a) If the T-REEL pulse is not impressed after a lapseof 5 sec. at SP, 10 sec. at LP, 14 sec. at SLP, ormore in the REEL Rotation Mode like PLAY/REC,FS/RS Mode, and the T-REEL or S-REEL pulse isnot impress after a lapse of 4 sec. or more in REELRotation Mode of FF/REW, it shall be assumed tostop the rotation and switch over to STOP (B) posi-tion, then POWER be turned OFF and the unit beREEL Mechanical Malfunction. (T-REEL and S-REEL for the models on S-REEL and only T-REELfor other models)

b) If the C-FG pulse is not impressed for a lapse of 1sec. or more during the CAPSTAN MOTOR rota-tion, it shall be MOTOR Rotation Malfunction(REEL Malfunction).

2) DRUM Malfunction detectionDetect the DRUM rotation at the D-FG input termi-nal. If the variation of D-FG input level is not detectedfor a lapse of 1 sec. or more when D-CONT is "H",it shall be assumed to be Rotation Malfunction andbe DRUM Malfunction. When detect Drum Malfunction, POWER shall beturned OFF after the unit switches over to STOP(B) Mode.

3) Countermeasure for TAPE LOADING MalfunctionDetect the Malfunction with the LOADING Switch.

a) TAPE LOADING MalfunctionIf LD-SW does not go to the established positionafter a lapse of 7 sec. or more from TAPE LOAD-ING or TAPE UNLOADING start, the LOADINGfunction shall immediately be stopped and POWERbe turned OFF, and inform the Timer about theLOADING Mechanical Malfunction.

b) LD-SW Position Malfunction at each modeWhen the unit operates at each mode, even if theLD-SW position changes from the established onein its mode, it keeps the function according to itsmode.

4) Countermeasure for CASSETTE LOADING Mal-function

a) CASSETTE IN operating MalfunctionIf LD-SW does not go to SB position after a lapseof 5 sec. or more from the CASSETTE insertionstart, the unit starts the CASSETTE OUT opera-tion. After switch over to CASSETTE OUT operation andthen a laps of 5 sec. or more from the CASSETTEOUT operation start, if LD-SW does not go to theEJ position or if START Sensor and END Sensordoes not turn "ON" at the EJ position, the unitstarts again to insert CASSETTE.(However in S-INH state, the START/END Sensorshall be disabled).

b) CASSETTE OUT operating MalfunctionAfter a lapse of 5 sec. or more from CASSETTEOUT operation start, if LD-SW does not go to theEJ position or if START Sensor and END Sensordoes not turn "ON" at the EJ position, the unitstarts to insert CASSETTE.(However in S-INH state, the START/END Sensorshall be disabled).

When the unit switches over to CASSETTE inser-tion at CASSETTE IN or CASSETTE OUT Mal-function, if LD-SW does not go to the SB positionafter a lapse of 5 sec. or more from CASSETTEinsertion start, the function shall immediately bestopped and POWER be turned OFF, and the unitbe CASSETTE LOADING Malfunction.

c) When POWER is turned ON, if the CL position orGC position cannot be detected after 5 sec. LD-REV operation and 5 sec. LD-FWD operation, thefunction shall immediately be stopped and POWERbe turned OFF, and the unit be CASSETTE LOAD-ING Malfunction.

d) When POWER is turned ON without CASSETTE(EJ position) and LD-SW is monitored all the time,if the CL or GC position is detected continuously for1 sec. or more, the POWER shall be turned OFFand the unit be CASSETTE LOADING Malfunction.

Countermeasure for MechanicalMalfunctionIf the unit detects Mechanical Malfunction, turn thePOWER OFF. If the unit is Mechanical Malfunction,Key input except POWER key shall be disabled andCASSETTE insertion disabled. When POWER Key isentered, the POWER is turned ON and the unitswitches over the EJECT Mode. (Return with POWERON)

1-7-9 T5553TR1

Check Fuse (F601) is blown out or not. If fuse is blown out, do repair method #1

Check whether the primary rectifying DC of the Switching power supply has an output.(Reading should be about 168V.

Voltage of the 105V line higher than normal?

The transformer of the power supply makes a higher sound or the oscillation wave form is abnormal. (E.g. intermittent oscillation)Connect the positive probe of oscilloscope to the pin 16 of T601, then connect the negative probe to the pin 12. Observe the waveform and check to see if the waveform is out of limit of value shown in Fig.1.

There is no problem on the SW power supply

CHECK

#1

#2

#3

#4

Repair method

NO

NO

NO

YES

YES

YES

YES

NO

Power Supply Trouble Shooting Guide

It is highly recommended that a variable isolationtransformer which can monitor current be used.(Alternatively a variable AC source which monitorscurrent will do). Read directions below beforepower is added!

Repair method #1(Power must be off)Short circuit in the secondary side. check diode D613,D614, D616, D617 and D618, switching transistor(Q601), control transistor (Q602), diode and resistorreplace as necessary.Disconnect 105V diode (D613), 25V diode (D614), 8Vdiode (D616), 12V diode (D617), 12V diode (D618)and Check the load continuity of 105V line, 25V line,8V line, 12V line through a tester (resistance range).If the tester indicates a lower resistance value around0 ohm, the line is short-circuited.Before repairing the switching power supply, find outthe short-circuited area of such line and repair it.If the tester does not indicate any low resistance value(around 0 ohm), no load is short-circuited and there isno problem.

Check for any defective parts while the secondary rec-tifying diodes are disconnected (D613, D614, D616,D617 and D618) perform a diode check in both for-ward and reverse directions through a tester.

Fig.1

0V

Voltage approx. 5Vp-p

T=Approx. 6 to 14 sec

Oscilloscope setting: 1V/DIV. 2 sec./DIV

1-7-10 T5553TR1

Repair method #2Check the primary rectifying diodes (D603-D606) aspossible problems. Remove the above mentionedparts and check them. Perform check according to thestep 1 and 2 of repair method #1 and check for defectsfollowing parts, then if necessary replace with factoryoriginals.R602 is open or not.Q601, Q602, D607, D608 and D611 are short or not.Repair method #3The feedback circuit which is monitored by the outputof D613 105V may not work and this may be regardedas a possible cause, remove IC601 (Photo Coupler),diode (D620) and transistor (Q604) check for defects.Repair method #4Check control circuitly which is connecting to Pin 2and 1 of Switching Transformer T601.

1-8-1 SC_1

(Top View) (Bottom View)

(Bottom View)

Electrolytic Capacitor+

Transistor or Digital Transistor

NPN Transistor PNP Transistor

NPN Digital Transistor PNP DigitalTransistor

(Top View)

(Top View)E C B

E C B

Digital Transistor

CBA Symbols

Schematic Diagram Symbols

E C B

(Top View)

(Top View)E C B

E C B

SCHEMATIC DIAGRAMS / CBAS AND TEST POINTSStandard NotesWarningMany electrical and mechanical parts in this chassishave special characteristics. These characteristicsoften pass unnoticed and the protection afforded bythem cannot necessarily be obtained by using replace-ment components rated for higher voltage, wattage,etc. Replacement parts that have these special safetycharacteristics are identified in this manual and itssupplements; electrical components having such fea-tures are identified by the mark " # " in the schematicdiagram and the parts list. Before replacing any ofthese components, read the parts list in this manualcarefully. The use of substitute replacement parts thatdo not have the same safety characteristics as speci-fied in the parts list may create shock, fire, or otherhazards.

Capacitor Temperature Markings

Capacitors and transistors are represented by the fol-lowing symbols.

Note:1. Do not use the part number shown on these draw-

ings for ordering. The correct part number is shownin the parts list, and may be slightly different oramended since these drawings were prepared.

2. All resistance values are indicated in ohms (K=103,M=106).

3. Resistor wattages are 1/4W or 1/6W unless other-wise specified.

4. All capacitance values are indicated in F (P=10-6F).

5. All voltages are DC voltages unless otherwisespecified.

Mark Capacity change rateStandard

temperatureTemperature

range(B) 10% 20C -25~+85C(F) +30 -80% 20C -25~+85C

(SR) 15% 20C -25~+85C(Z) +30 -80% 20C -10~+70C

1-8-2 SC_2

LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ONTHE FOLLOWING PAGES:

1. CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAMETYPE_A,_V FUSE.ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MME TYPE DE_A,_V.

2. CAUTION: Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit.If Main Fuse (F601) is blown, first check to see that all components in the power supply circuit are not defectivebefore you connect the AC plug to the AC power supply. Otherwise it may cause some components in thepower supply circuit to fail.

3. Note:(1) Do not use the part number shown on the drawings for ordering. The correct part number is shown in the parts

list, and may be slightly different or amended since the drawings were prepared.(2) To maintain original function and reliability of repaired units, use only original replacement parts which are listed

with their part numbers in the parts list section of the service manual.

4. Wire Connectors(1) Prefix symbol "CN" means "connector" (can disconnect and reconnect).(2) Prefix symbol "CL" means "wire-solder holes of the PCB" (wire is soldered directly).

5. Note: Mark "" is a leadless (chip) component.

6. Mode: SP/REC

7. Voltage indications for PLAY and REC modes on the schematics are as shown below:

8. How to read converged lines

9. Test Point Information

2 31 5.0(2.5)

PLAY mode REC mode5.0

The same voltage forboth PLAY & REC modes Indicates that the voltageis not consistent here.

Unit: Volts

3

2

1

A B C D

1-B1

1-D3

AREA D3AREA B1

1-D3Distinction AreaLine Number(1 to 3 digits)Examples:

1. "1-D3" means that line number "1" goes to area "D3".2. "1-B1" means that line number "1" goes to area "B1".

: Indicates a test point with a jumper wire across a hole in the PCB.: Used to indicate a test point with a component lead on foil side.: Used to indicate a test point with no test pin.: Used to indicate a test point with a test pin.

A1

A2

A3

A4

B1

B2

B3

B4

C1

C2

C3

C4

D1

D2

D3

D4

E1

E2

E3

E4

F1

F2

F3

F4

Main 1/5 Schematic Diagram

1-8-3 1-8-4 T5500SCM1

MAIN 1/5Ref No. Position

IC201 C-2IC202 D-1

Q205 B-1Q206 D-3

CL201 F-4

TP201 B-4TP202 B-2

TEST POINTS

ICS

TRANSISTORS

CONNECTOR

G1

G2

G3

G4

H1

H2

H3

H4

I1

I2

I3

I4

J1

J2

J3

J4

K1

K2

K3

K4

L1

L2

L3

L4

REC Video SignalREC Audio Signal

PB Video SignalPB Audio Signal


1-8-5 1-8-6 T5500SCM2


IC401 H-2IC801 K-4

Q401 K-2Q402 K-3Q871 H-2Q872 H-1Q873 G-1Q874 G-1Q875 H-1

CL401 G-3CL402 L-1CL403 G-1CN801 K-4

TP301 K-2TP401 J-1TP402 J-1

TEST POINTS

CONNECTORS

ICS

TRANSISTORS

M1

M2

M3

M4

N1

N2

N3

N4

O1

O2

O3

O4

P1

P2

P3

P4

Q1

Q2

Q3

Q4

R1

R2

R3

R4

REC Video SignalREC Audio Signal

PB Video SignalPB Audio Signal


1-8-7 1-8-8 T5500SCM3


IC001 Q-2IC301 M-2

Q301 N-1

TP302 O-1

ICS

TRANSISTOR

TEST POINT

S1

S2

S3

T1

T2

T3

U1

U2

U3

V1

V2

V3

W1

W2

W3

X1

X2

X3


1-8-9 1-8-10 T5500SCM4

NOTE :The voltage for parts in hot circuit is measuredusing hot GND as a common terminal.

CAUTION: FOR CONTINUED PROTECTION AGAINST RISKOF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE.ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DEMME TYPE DE 4A, 125V.4A/125V

CAUTION !Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.If Main Fuse (F601) is blown, check to see that all components in the power supplycircuit are not defective before you connect the AC plug to the AC power supply.Otherwise it may cause some components in the power supply circuit to fail.

VOLTAGE CHART (Power off mode)Ref. No. 1 4IC601 11.0 16.0

Ref. No.IC602

Ref. No.Q601

Ref. No.Q602Q604Q605Q606Q607Q608Q609Q610Q611Q612Q613

1.40

1.90

8.20.70

6.5

B0

7.80

30

G1.8

5.63.05.13.0

8.80

3.08.2

5.10

210.0

D137.0

C3.29.97.9

05.80.90.1

6.70

8.90

S0E0

1 2 33.0 0 1.8

MAIN 4/5Ref No. Position Ref No. Position

IC601 W-2 Q609 T-2IC602 T-3 Q610 T-2

Q611 T-1Q601 X-2 Q612 S-2Q602 W-2 Q613 S-1Q604 V-2Q605 U-2 CN601 X-1Q606 U-3Q607 U-2 VR601 V-2Q608 T-2

ICS

TRANSISTORS

TRANSISTORS

VARIABLE RESISTOR

CONNECTOR

Y1

Y2

Y3

Z1

Z2

Z3

AA1

AA2

AA3

BB1

BB2

BB3

CC1

CC2

CC3

DD1

DD2

DD3REC Video Signal PB Video Signal

1-8-11 1-8-12 T5500SCM5

Main 5/5 & CRT Schematic Diagram


IC551 Y-3

Q571 AA-2Q572 Z-3Q591 Z-2

CL501B BB-3CL502B BB-2CN571 Z-3

CONNECTORS

IC

TRANSISTORS

CRTRef No. Position

Q511 CC-2Q521 CC-2Q531 CC-2

CL501A BB-3CL502A BB-2CN505 DD-2

TRANSISTORS

CONNECTORS

WAVEFORMS

Z13WF1-9-1

WA

VEFO

RM N

OTE

SIN

PUT:

NTS

C CO

LOR

BAR

SIG

NAL

(WITH

1kHz

AUD

IO S

IGNA

L)BR

IGHT

NESS

, CO

LOR

AND

TINT

CO

NTRO

LS: C

ENTE

R PO

SITI

ON

CONT

RAST

CO

NTRO

L: A

PPRO

X 70

%

VOLT

AGES

SHO

WN

ARE

RANG

E O

F O

SCIL

LOSC

OPE

SET

TING

.

WF1

1DIV

: 2V

5

mse

cTP

202

RF-

SW

WF3

1DIV

: 1V

1

0mse

cTP

201

CTL

WF2

1DIV

: 0.2

V 0

.1s

ec

IC40

1 PI

N 49

WF4

1DIV

: 0.2

5V

20s

ec

IC40

1 PI

N 32

Uppe

r: W

F6 L

ower

: WF1

1DIV

: 0.2

V 2

DIV

: 5V

5m

sec

TP40

2 V

-EN

V

WF5

1DIV

: 0.5

V

20s

ec

TP30

1 V

-OUT

WF8

1DIV

: 0.5

V 0

.5m

sec

TP40

1 A

-OUT

WF7

1DIV

: 0.2

V 0

.5m

sec

IC00

1PIN

7

WF9

1DIV

: 0.5

V 0

.5m

sec

IC40

1 PI

N 9

WF1

11D

IV: 1

V

20

sec

IC30

1 PI

N41

WF1

01D

IV: 2

V

5m

sec

IC30

1 PI

N 9

WF1

21D

IV: 2

00V

20

sec

Q571

COL

LECT

OR

WF1

7

WF1

8

1DIV

: 1V

2

0se

cIC

201

PIN

58

1DIV

: 1V

5

mse

cIC

201

PIN

59W

F14

1DIV

: 20V

2

0se

cQ5

11 C

OLLE

CTOR

WF1

51D

IV: 2

0V

20

sec

Q521

COL

LECT

OR

WF1

61D

IV: 2

0V

20

sec

Q531

COL

LECT

OR

WF1

31D

IV: 1

0V

5m

sec

CN57

1 PI

N 5

WIRING DIAGRAM

T5500WI1-10-1

FULL

ERA

SE H

EAD

WIR

ING

DIA

GRA

M F

OR

SECT

ION

2 (D

ECK

MECH

ANIS

M)

CRT

CBA

BT5

500F

0101

1FO

CUS

SCRE

EN

GND

D.Y.

VDHD

CL40

3

CL50

1ACL

501B

MA

IN C

BAB

T550

0F01

011

CL50

2BCN

505

21CN6

01

W60

1

T571

FBT

CRT

1 2 3 4 5CN57

1

CL50

2A

ANO

DE

FE H

EAD

SP80

1SP

EAKE

R

CN80

1CL

802

AUDI

O H

EAD

CONT

ROL

HEAD

AC H

EAD

ASSE

MBL

Y

AUDI

O E

RASE

HEA

D

MLO

ADIN

GM

OTO

R

CYLI

NDER

ASS

EMBL

Y

CL20

1

CAPS

TAN

MO

TOR

MD

RUM

MO

TOR

PG SENS

OR

CL40

2

1FE

-H-G

ND2

FE-H

1P-

ON+

12V

2P-

ON+

5V(2)

3C-

FG4

C-F/

R5

C-CO

NT6

FG-G

ND7

LD-C

ONT

8D

-CO

NT9

D-P

FG10

M-G

ND11

D/L

+12V

12D

/L+1

5V

6AE

-H5

AE-H

/FE-

H4

A-CO

M3

A-PB

/REC

2CT

L(+)

1CT

L(-)

1SP

EAKE

R2

SP-G

ND

1G

ND2

RED

3G

REEN

4BL

UE

1G

ND2

RED

3G

REEN

4BU

LE

1+

160V

2G

ND3

HEA

TER

1+

160V

2G

ND3

HEA

TER

CL40

1VI

DEO

(L) H

EAD

VID

EO(R

) HEA

D

3V(

L)2

V-CO

M1

V(R)

SENS

OR

CBA

(END

-SEN

SOR)

BH

B30

0F01

014A

,B

SENS

OR

CBA

(ST-

SENS

OR)

BH

B30

0F01

014A

,B

1-11-1 T5553TI

SYSTEM CONTROL TIMING CHARTSChart 1

0.2S

1. EJECT (PO

WER

OFF) -> CASSETTE IN (PO

WER

ON) -> STO

P(B) -> STOP(A) -> PLAY -> RS -> FS -> PLAY -> STILL(N-CANCEL) -> PLAY -> STO

P(A)

EJECT

CASS.LOAD

ST-S "OFF"

RECSFT-SW

POWER

PLAY

REW

FF

PLAY

PLAY

STOP/EJECT

0.2S

STOP(B)

0.4S

0.2S

LD-FWD

STOP(A)

STOP(A)

LD-FWD

LD-REV

0.2S

LD-FWD

LD-FWD

LD-FWD

STILL

STILL

STILL

RS1(RS2)

FS1(FS2)

PLAY

PLAY

PLAY

LD-REV

LD-FWD

LD-FWD

LD-REV

LD-REV

LD-REV

0.2S

0.5S

PIN NO

.

CLEJ

SSSS

AUAU

TLLD

-SW

CL/SS

LD-CO

NT

C-DRIVE "Z"

ON

ON

C-F/R

DRUM

ROTATIO

N

P-ON

A-M

UTE-H

D-R

EC-H

D-PB

-H

PAUSEON

PAUSE

PAUSEON

PAUSEOFF

PAUSEOFF

AUAL

AUSF

SM

EJAURSSFSMTLFBALSB

1

8266316544

POWER

-OFF

STOP

PLAYRS

FSPLAY

STILLSTO

PPLAY

DISPLAY

SBTL

SBFB

SMSM

SFAL

ALRS

AUAL

SM

0.8S0.2S

0.3S

1.0S0.2S

+100mS(NTSC)after channel setting

+620mS(PAL)1.0S

0.12S0.8S

0.2S

1.2S0.2S

20mS0.4S

40mS

0.2S0.2S

0.2S0.2S

0.3S

NOISECANCEL

NOISECANCEL

6mS6mS

240mS80mS

NTSC6mS

6mS160mS

80mSPAL

>5.0S5.0S

SP MODELP/SLP MODE

0.3S

0.2S

20mS0.4S40mS

1-11-2 T5553TI

Chart 2

PIN NO

.

LD-SW

CL/SS

LD-CO

NT

C-DRIVE "Z"

ON

ON

C-F/R

DRUM

ROTATIO

N

P-ON

A-M

UTE-H

D-R

EC-H

D-PB

-H

EJAURSSFSMTLFBALSB

1

8266316544

DISPLAY

ST-S "ON"

REC

REW

FF

STOP/EJECT

0.5S

1.0S

0.2S

0.2S

0.5S

0.2S

0.5S

0.5S

0.5S

0.2S

0.2S

0.2S

1.5S

2.5S Short REV

1.0S

0.2S

0.2SLD-FWD

REV

LD-FWD

STOP(A)

STOP(A)

STOP(A)

CASS. UNLDEJECT

STOP(A)

LD-REV

FF

LD-REV

LD-REV

LD-FWD

LD-FWD

LD-FWD

LD-FWD

LD-FWD

LD-FWD

LD-FWD

REC PAUSE

REC

REC

REWLD-REV

LD-REV

LD-REV

LD-REV

LD-REV

LD-REV

LD-REV

PAUSE

REC or PAUSE

STOP/EJECT

STOP/EJECT

STOP/EJECT

2. STO

P(A) -> FF -> STOP(A) -> REW

-> STOP(A) -> REC -> PAUSE -> PAUSE or REC -> STO

P(A) -> EJECT

STOP

FF

STOP

REW

STOP

REC

REC

REC PAUSE

STOP

TLTL

SMSM

SFSF

ALAL

SMAL

ALAL

AUAU

SMTL

SBEJ

RSRS

SMSM

SFFB

SMAU

AUSS

SSSS

SFAU

ALAL

AUSS

FBCL

SFFB

SMFB

SFAU

AUFB

SF

1.0S1.2S

0.2S

40mS

0.4S

0.2S

0.4S20mS

40mS

0.2S

20mS

0.2S

0.4S1.5S(NTSC)1.0S(PAL)

40mS

20mS0.1S

1-12-1 T5500PIN

IC PIN FUNCTION DESCRIPTIONSIC201 (TV/VCR Micro Controller)

H 4.5V, L 1.0VPin No.

IN/OUT

SignalName Function

1 IN LD-SW Loading Switch Input2 - NU Not Used

3 IN P-SAFETY 2 Power Supply Failure Detection 2

4 IN P-SAFETY 3 Power Supply Failure Detection 35 IN KEY0 Key 0 Input6 IN KEY1 Key 1 Input7 IN END-SENS End-Sensor8 IN AFT-IN AFT Input9 IN ST-SENS Start-Sensor10 IN V-ENV Video Envelope Input11 - NU Not Used12 OUT SP-MUTE Speaker Mute Output13 OUT DV-SYNC Artific

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Tv Silvania 6313ce