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SERVICE MANUAL JD-TV9021 (3Y03 CHASSIS)
Design and specifications are subject to change without prior notice. ( ONLY REFERRENCE)
ENGINEER BY: CHECKED BY: PPROVED BY: _______________
Contents
Safety Notice...............................................................Technical specification
...........................................................................................................
............................................................
......................................................................................................
Operation Instructions..............................................................................................
...........................................................
2..................................................3
Chassis Block Diagram..................................................4IC Block Diagram .......................................................5-7Transistor mark 8Chassis wiring diagram 9PCB Top layer 10-11Service Adjustments ................................................ 12-18Purity and Convergence Adjustment ............................19Control Location 20Input and Output Terminals 21
22-23Mechanical Disassemblies 24Cabinet parts List 25 Circuit Diagram..............................................................26
Safety Notice
-2-
SAFETY PRECAUTIONS
1:An isolation transformer should be connected in the power line between the receiver and the AC line when a service is performed on the primary of the converter transformer of the set.2:Comply with all caution and safety-related notes provided on the cabinet back, inside the cabinet, on the chassis or the picture tube.3:When replacing a chassis in the cabinet, always be certain that all the protective devices are installed properly,such as,control knobs, adjustment covers or shields, barriers,isola- tion resistor-capacitor networks etc.. Before returning any television to the customer,the service technician must be sure that it is completely safe to operate without danger of electrical shock.
X-RADIATION PRECAUTION
The primary source of X-RADIATION in television receiver is the picture tube. The picture tube is specially constructed to limit X-RADIATION emissions. For continued X-RADIATION protection, the replacement tube must be the same type as the original including suffix letter. Excessive high voltage may produce potentially hazardous X-RADIATION. To avoid such hazards, the high voltage must be maintained within specified limit. Refer to this service manual, high voltage adjustment for specific high voltage limit. If high voltage exce-eds specfied limits, take necessary corrective action. Carefully follow the instructions for+B1 volt power supply adjustment, and high voltage check to maintain the high voltage within the specified limits.
PRODUCT SAFETY NOTICE
Product safety should be considered when a component replacement is made in any area of a receiver. Components indicated by mark in the parts list and the schematic diagram designate components in which safety can be of special significance. It is particularly recommended that only parts designated on the parts list in this manual be used for com-ponent replacement designated by mark . No deviations fromresistance wattage or vol-tage ratings may be made for replacement items designated by mark .!
!
!
-3-
L A
7681
4
LC863224A-5V23
TU
NE
RS
AW
.FIL
PR
E.A
MP
R G
B Y
La42
85
EE
PR
OM
SD
A/S
CL
22-25
14-1
7
RG
B A
MP
CR
T
La78
40
V-O
UT
H-O
UT
H-F
BP
FB
P
TV-AUDIO
AV1/
AV2
AU
DIO
IN
VID
EO
-IN
VID
EO
-OU
T
HE
F4O
52B
P
HE
F4O
53B
P
PO
WE
R
110V
(B
+)
21V
5V9V
19-2
1
24V
9V/1
2V
V.S
YN
H.S
YN
SDA
SCLR
F-A
GC
AF
C
VID
EO
11 1
241
40
2328
27
40 10
29 30 212019 14
SP
EA
KE
R-L
SP
EA
KE
R-R
I c40
1
AV1/
AV2
VID
EO
IN
Ic40
0
IC40
3
I c30
1
I c20
1
Ic001Ic00
2
VE
RT
ICA
LD
EF
LE
CT
ION
HO
RIZ
ON
TAL
DE
FE
CT
ION
FO
UC
S
SC
RE
EN
27
28
4
5
6
2
Chassis Block Diagram
-4-
IC Block Diagram
-5-
IC 201 (IIC BUS SINGLE CHIP VIF,SIF,VIDEO CHROMA) LA76814K
LA7
681
4K
BLO
CK
DIA
GR
AM
FBP
IN
REF
HO
R
GN
D
V/C
GN
D
EX
T-V
IN
[Y-IN
]
INT
-V I
N
[S-C
IN
]
V/C
VC
C
VC
O
CO
IL
EX
T-A
UD
IO
IN
SVO
10p
330
0.47u
10u
10K
7.5K
330p
4.7K
MetalF il m(1%)
0.47u
3K 0.01
24K
24K
0.4
7u
0.01u
16p
1u
10K
680K
2.2u
1u
1u
1K 1K
1000p
1000p
54
50
53
52
51
49
48
47
46
45
44
43
42
41
40
37
36
35
34
33
32
31
30
29
28
39
38
10u
330
1000p
1K
15
uH
1K
0.01u
47u V
C
SAW
FIL
TE
R
AU
DIO
OU
TP
RF
IF IN
IF
VC
C
AF
ABL
R
IN
G
IN
B
IN
FB
IN
VC
C
(912V)
R
OU
T
G
OU
T
B
OU
T
VER
OU
T
HO
R
VC
C(9
V)
HO
R
OU
T
0.01u( )
0.022u( )
30K
0.0
1u
100
1u
100K 100K
1K
1K 100
100
BU
S
DA
TA
BU
S
CL
OC
K
0.33u( ) 0.33u( )
10u
0.01u
0.015u
3K 1u
150
0.1u( )
150
10u
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
1
2
3
4
5
6
7
8
9
100
Sync
Out
0.1u
0.01u
0.1u( )
0.1u( )
56p
0.01u
5.6k
Vc
c
BPF
SPL
L
BPF
FM
DET
SW
DC
V
OL
IF
AG
C
RF
A
GC
VID
EO
D
ET
TRA
P
VID
EO
A
MP
A2C
PL
L
LIM
A
MP
VIF
IF V
cc
5V
AFT
BU
S A
BL
C
LA
MP
OSD
C
ON
TRA
ST
BRIG
HT
CL
AM
P
CL
AM
P
VID
EO
SW
TRA
P
DEL
AYL
INE
PE
AK
ING
C
ORIN
G
BL
AC
K
STRET
CH
SYN
C
SEP
SW
DR
IVE
/CU
TOFF
OSD
SW
FBP
HO
R
VC
O
1/2
56
HO
R
C/D
AFC
1
AF
C2
PH
ASE
S
HIF
TER
HO
R
OU
T
HO
R
Vc
c
VER
RA
MP
VER
C
/D
VER
SE
P
RG
B
MA
TR
IX
CO
NT
RA
ST
BRIG
HT
BPF
(ON
/OFF
)
DEM
O
CO
LO
R
CL
AM
P
VC
O
TIN
T
APC
1
AC
C
KIL
LER
XRA
Y
IC Block Diagram
-6-
IC301<Vertical Output> LA7840
7654321
GN
D
Ve
r.O
UTP
UT
OU
TPU
T STA
GE V
cc
NO
N IN
V.I
NPU
T
INV
ER
TIN
O IN
PU
T
Vc
c
PU
MP U
P O
UT
PUMP UP
AMP
THERMALPROTECTION
-+
IC 403(3W AUDIO OUTPUT)LA 4285
+
1 2 6543 1097 8VCCINT
+
EXT
PREGND
INT/EXT SM
EVRCONT
++
6
++
D.C.
++++
PWR NF
PWRGND
++
RL 8
+ -
EVR
5V
IC Block Diagram
-7-
IC602<POWER > STR-G6653
Comp2
Vth(2)
Vth(1)
Comp1
GND
O.C.P/F.B
DRIVELATCHO.V.P
REG.
T.S.D
VIN4
START
O.S.C
-+
-+
5
2S
1D
3
Comp2
IC603<PHOTO TRANSISTOR> TLP621
TLP621
1
2 3
4
1:ANODE2:CATHODE3:EMITTER4:COLLECTOT
1
INPUT
2
OUTPUT SERIES PASSELEMENT
SOAPROTECTION
REFERENCE VOLTAGE
ERRORAMPLIFIER
THERRMALPROTECTION
STARTING CIRCUIT
CURRENTGENERATOR
REFERENCE VOLTAGE
3GND
IC203,Q609,IC601&IC302<REGULATORS> L7800 SERIES
B C E
C BE
C2482
C BE
C1815
C BEC BE
A1015
PNP NPN
C2120
C BE
PNP
C2717
CB E
NPN
L7805
INPUT
GND
OUTPUT
L7812
INPUT
GND
OUTPUT
L7809
INPUT
GND
OUTPUT
NPNPNP
Transistor Mark
-8-
A9
66
D2499
Chassis wiring diagram
-9-
CN 301TO CRT BOARD
CN 302
CN 405TO FRONT AV
CN 601AC IN
FOCUS
SCREEN
CN 301BFROM CN 301
CN 201BFROM CN 201
CN 001TO CONTROL
CN 201TO CRT BOARD
CN401TO SPEAKER
MAIN PCB Top Layer
-10-
CRT, FRONT AV&CONTROL PCB Top Layer
FRONT AV & CONTROL PCB TOP LAYER
-11-
Service Adjustments
-12-
Please notice the following before alignment and equipment
1. Don’t short any two soldering points, which should not be shorted and don’t touch any components, which should not be touched.
2. Please pull out plug before equipment. 3. For safety reasons, all components equipped or replaced should be identical with BOM. 4. Must be warm up for 30 minutes or more and degauss CRT thoroughly with demagnetizer before
alignment. The data of EEPROM must be stored before the adjustment for main chassis. And EEPROM must be corrected by the correct file “3Y03_ROM_CORRECT.hex” to avoid signal of CH6 weaken. R.bias,
G.bias, B.bias, R.drv, G.drv, B.drv should be set to proper values. Sub_bright is set to 63 usually.
Tools and equipments for adjustment
1. small “-“ screwdriver 2. screwdriver without inductance 3. Pattern Generator 4. DC Regulated power supply 5. Digital Voltmeter 6. Sweep Signal Generator 7. 20MHz 2-channel Oscilloscope
Signal condition
ITEMS LOGO PICTURE CARRIER
PATTERN SYSTEM SOUND MODE
REMARK
1 CH14 471.25 MHZ COLOR BAR NTSC/M MONO 1KHz
2 CH3 61.25 MHz GRAY SCALE NTSC/M BTSC
0.3k,3kHz
3 CH8 181.25 MHz MONOSCOPE NTSC/M MONO MUSIC
4 CH12 205.25 MHz CROSS HATCH NTSC/M MONO 1KHz
Adjust for main chassis PIF Adjustment (45.75MHz)
a. Tuner AGC connects to GND. Pattern Generator outputs 45.75MHz I.F. signal (70dbµV)and connects to SAW filter
output terminal through a capacitor . b. Connect Digital voltmeter across C227. DC Regulated power supply positive terminal output +14V to C617. c. Adjust L203 coil to obtain 3.6V Digital voltage meter reading.
NOTE: To cancel this adjustment , L203 can be adjusted before inserted to the chassis with a special equipment.
Service Adjustments
-13-
B+ adjustment a. Disconnect horizontal load. Connect a bulb (100 W) AC 250V across C321. b. Add 220V AC 50HZ to CN601 and switch on power switch. c. Test the voltage with digital voltage meter between C321 two terminals. d. Adjust VR601 to obtain +110V¡À0.5V.
AGC alignment a. Receive 60dB RF signal. Connect Digital voltmeter positive terminal to tuner AGC terminal and negative terminal
to GND. b. Press “MENU” key, then press “Q.VIEW” key, “MUTE” key in turn on telecontroller. TV SET will go to factory mode.
Press “TIMER” key to go to the next factory menu. Go to MENU5 status by this means. Press “MENU” key to exit factory mode.
c. Select RF.AGC by pressing “CH+” and “CH-“keys. Adjust “VOL+” and “VOL-“ keys to obtain 4V Digital voltage meter reading.
COMPLETE MACHINE GENERAL ADJUSTMENT Go to factory mode according to 4-2-2 before warm up line Focus Adjustment
a. Receive monoscope pattern. b. Set TV to work in dynamic status. c. Adjust the focus knob of FBT to get the clearest picture.
Screen Voltage Adjustment a. Check the R.bias, G.bias, B.bias, R.drv, G.drv, B.drv and sub_bright. Go to factory mode “MENU2” status
according to 4-2-2. Usually G.bias should be same as the value of auto white balance equipment. And SUB_BRIGHT is 63.
b. Set Cross_BW ‘3”. Then the picture will be a white “+”. Cross_BW is in factory menu 3. c. In menu 5, select SUBB.ADJ and set it to “1”. Adjust the screen knob of FBT to get a faintness “+”.
d. Restore the SUBB.ADJ to “0” and CROSS.BW to “0” .
White Balance Adjustment (Applied in factory) a. Set TV AV status in custom mode(Or other mode need for the adjustment) . Receive black white pattern. b. Insert six-row-wire into CN002.Press adjustment keys, and then go to automatic white balance adjustment. c. PIN DISCRIPTIONN OF CN002:
1£ºSDA£¬ 2£ºSCL£¬ 3£ºGND£¬ 4£ºGND£¬ 5£ºSCL£¬ 6£ºSDA¡£ d. After adjusting well, pull out six-row-wire.
Ver tical size and pincushion adjustment
Service Adjustments
-14-
White balance adjustment (Applied when servicing) a. Set TV AV status and receive GREY SCAL.
b. The one sampling tube of CRT color analyzer (CA-100) covers on GREY signal and the another covers on white signal.
c. Go to factory mode “MENU2”. Obtain GREY signal X=281 and y=311 by adjusting R-CUT and B-cut. Obtain white signal X=281 and y=311 by adjusting R-DRV and B-DRV. Obtain both X=281 and Y=311 by adjusting the two status repeatedly.
Sub_bright adjustment
Receive the gray scale . Get into the menu5 of factory mode. Set SUBB.ADJ to “1”. Then adjust the SUB..BRI option to get a scale to be seen a little brightness(Only two rows can be seen).
Vertical Size and PinCushion Adjustment a. Receive monoscope pattern. Set TV standard status. Adjust V.size to obtain picture’s vertical redisplay ratio more
than 90% in factory mode “MENU1”. b. Receive cross hatch pattern. Set TV standard status. Adjust V.LINE and V.SC to obtain picture’s vertical pin
cushion a good status in factory mode “MENU1”. c. Receive cross hatch pattern. Set TV standard status. In factory mode “MENU1” adjust V.POS to obtain picture’s
vertical center at the center of CRT screen.
Horizontal Center Adjustment and horizontal position of OSD adjustment a. Receive monoscope PATTERN. Set TV standard status. Adjust H.PHASE in menu 1 to obtain horizontal center
at the center of CRT screen. b. Adjust the “OSD.HPOS” to get right display position.
SUB.TINT ADJUSTMENT Receive the color bar signal of NTSC system. Set the picture mode at normal mode. Adjust the ‘SUB.TINT’ option
in menu5 at sevice mode to get the right hue .
MTS ADJUSTMENT
Receive the RF CROSS-TALK signals , but FM with BTSC .Enter into the factory mode. Set ADJ.FREQ to 1 in
“9852 AUTO.ADJ”. Wait 1 second . Quit factory menu after “ADJUSTING ” change to “0” .
COLOR PURITY ADJUSTMENT
a. Before color purity adjustment, Warm up the TV set over 15 minutes and fully degauss.
b. Receive pure white signal in AV status and set the TV receiver dynamic.
c. Go to factory mode “MENU2”. After write down the values of R-BIAS and B-BIAS, set the values of R-BIAS and
B-BIAS zero.
d. Loosen the clamp screw of the deflection yoke and pull the deflection yoke towards color purity magnetic loop.
e. Adjust color purity magnetic loop to make the green area at the center of CRT screen.
f. Slowly push the deflection yoke toward the front of CRT and set it where a uniform green field is obtained.
Tighten the clamp screw of the deflection yoke.
g. Restore the values of R-BIAS, G-BIAS and B-BIAS.
CONVERGENCE ADJUSTMENT
a. Receive a dotted pattern. Set the TV receiver dynamic.
b. Loose the convergence magnet clamper and align red with blue dots at the center of the screen by rotating (R, B)
static convergence magnets.
c. Align Red/Blue with green dots at the center of the screen by rotating (RB-G) static convergence magnet.
d. Remove the DY wedges and slightly tilt the deflection yoke horizontally and vertically to obtain the good overall
convergence. Fix them after the good overall convergence got.
e. Fix the convergence magnets by turning the clamper.
f. If purity error is found, follow “PURITY ADJUSTMENT” instructions.
Purity Magnet
RB-G RB
Magnet Clamper
Static Magnet
Ver tical size and pincushion adjustment
Service Adjustments
-15-
Ver tical size and pincushion adjustment
Service Adjustments
APPENDIX
FACTORY MENU DISCRIPTION
MENU1 VALUE DISCRIPTION
1 V.SIZE 101 Align vertical amplitude
2 V.POS 32 Align vertical DC bias
3 V.LINE 16 Align vertical linearity
4 V.SC 0 Align vertical S-correction
5 H.PHASE 8 Align sync to flyback phase
6 H.BLK.RL 4 H-blanking Control(Width /Phase)
7 H.FREQ 22 Align ES Sample horizontal frequency
MENU2
1 V.KILL 0 Disable vertical output
2 R.B 138 Align Red out DC level
3 G.B 182 Align Green out DC level
4 B.B 148 Align Blue out DC level
5 R.D 67 Align Red out AC level
6 G.D 8 Align Green out AC level
7 B.D 45 Align Blue out AC level
MENU3
1 RG.GAM 1 Disable R/G gamma correction (0/ON; 1/OFF)
2 B.GAM 3 Select and Disable B gamma correction(0~2/ON;3/OFF)
3 R.B.ANG 1 Adjust the demodulation angle of R-Y and B-Y
4 AT.FLESH 0
5 GRAY.MODE 0 Select Test mode (0/White; 1/Gray)
6 CROSS.BW 0 Service Test mode (0/TV; 1/Black; 2/White; 3/Crosshatch)
7 AFC.GAIN 0 Select Horiz. 1st loop gain & H-sync gate on/off(0/auto;1/enforce)
8 H.BLK.SW 0 H BLK R&L selection(0/right side blanking can be adjusted;1/left)
MENU4
1 FILT.SYS 1 Select Y/C filter mode(0,2/3.58 unsymm.; 1,3/3.58 sym.; 4~7/no filt)
2 CORING 1 Enable Luminance coring( 0/Off; 1/ON)
3 OSD.CONT 1
4 OSD.HPOS 30 Align the horizontal position of OSD
5 BLK.STR.D 0 Disable black stretch
6 BRIABL.T 0 Align brightness ABL threshold
MENU5
1 RF.AGC 31 Align RF AGC threshold
-16-
Ver tical size and pincushion adjustment
Service Adjustments
-17-
OPTION
1 2 AV.CH 3 Select AV numbers(0/ No AV;1/1 AV; 2,3/2AV)
2 SRH.SPEED 0 Select auto search speed(0/fastest, 7/lowest)
3 TDA9852 1 Disable 9852(0/disable; 1/able)
4 TUN.AS.V 1 Select the Tuner address(0/Tuner pin3 to ground;1/pin3 not used)
9852 AUTO.ADJ
1 ADJ.FREQ 0 Disable auto adjusting(0/disable; 1/get into autoadjust mode)
2 ADJUSTING 0
3 FM.LVL 16
4 76075.VOL 0
5 L3-L0 0 input level adjust
6 TC2-TC0 0 timing current alignment data
7 A14-A10 0 stereo alignment data for wideband expander
8 A24-A20 0 stereo alignment data for spectral expander
TDA1
1 VOL.RIGHT 125 volume control right
2 VOL.LEFT 125 volume control left
3 GMU 0 mute control for all outputs (general mute )
4 AVLON 0 auto volume control (with 0.1Vrms-1.1Vrms input to get constant output
0.2Vrms)
5 LOFF 0 switch loudness on/off
6 CCD 0
7 SC2-SC0 2 selection between line in and line out
8 SAP.ID 0
TDA2
1 STERO.ID 1
2 TZCM 0 zero cross mode in volume operation
3 LMU 0 mute control for line out
4 EF2-EF0 0 selection between mono, stereo linear, spatial stereo and pseudo mode
5 L3-L0 0 input level adjust
6 A14-A10 0 stereo alignment data for wideband expander
7 A24-A20 0 stereo alignment data for spectral expander
8 STS 0 stereo level switch
-18-
White Balance address
White Balance address
Data Name E2PROM Address LA76814 ADDRESS
#1011 1010B bright 12H #0001 0100B
contrast 11H #0001 0101B color 10H #1011 1010B
Sub-bright 24H #0001 0011B R.B 1EH #0000 1101B G.B 1FH #0000 1110B B.B 20H #0000 1111B R.D 21H #0001 0000B G.D 22H #0001 0000B B.D 23H #0001 0010B
TDA3
1 ADJ 0 stereo adjust on/off
2 AT1-AT2 0 attack time at AVL
3 TC2-TC0 0 timing current alignment data
4 WR.ERR 0
5 RD ERR 0
6 MANU ADJ 0
7 STEREO 0 mode selection for line out
8 SAP 0 mode selection for line out
Ver tical size and pincushion adjustment
Service Adjustments
COLOR PURITY ADJUSTMENT
(1) Before color purity adjustment,warm up the TV set over 15 minutes and fully degauss.(2) Receive pure white signal in AV status and set the TV receiver dynamic.(3) Go to factory mod MENU2. After write down the values of R-BIAS and B-BIAS, set the values of R- BIAS and B-BIAS zero.(4) Loosen the clamp screw of the deflection yoke and pull the deflection yoke towards color purity Magnetic loop.(5) Adjust color purity magnetic loop to make the green area at the center of CRT screen.(6) Slowly push the deflection yoke toward the front of CRT and set it where a uniform green field is Obtained. Tighten the clamp screw of the deflection yoke.(7) Restore the values of R-BIAS,G-BIAS AND B-BIAS.
CONVERGENCE ADJUSTMENT
(1) Receive a dotted pattern. Set the TV receiver dynamic.(2) Loose the convergence magnet clamperrrrr and align red with blu dots at the center of the screen by rotating(R,B) static convergence magnets.(3) Align Red/Blue with green dots at the center of the screen by rotating(RB-G) static convergence magnet.(4) Remove the DY wedges and slightly tilt the deflection yoke horizontally and vertically to obtain the good
Purity Magnet
RB-G RB
Magnet Clamper
Static Magnet
Purity and Convergence Adjustment
-19-
Control Location
-20-
1. Remote Sensor
2. Power Indicator
3. Main Switch
4. Speakers
5. Program Down & Up Button
6. Volume Down & Up Button
7. Menu Button
8. AV/TV Button
9. Front AV In (Option)
10. Audio/Video - In/Out Jack
11. AC Power Cord
12. Terminal Antenna (75 Ohm)
32 15 86 74 9 4
10 1211
(STEREO)
(MONO)
Input and Output Terminals
-21-
VIDEO AND AUDIO INPUT/OUTPUT TERMINALS
1. Video / Audio input for playback for VCR.
2. Video / Audio output for TV monitor output.
*Please keep AC cord unplugged when connecting TV system.
R R
LL
VIDEOVIDEO AUDIOAUDIO
AV-IN AV-OUT
NOTE:
This is a mono CTV even though there are R & L audio input & output jack. These
audio R/L input terminals are parallel connected inside and make mixed monaural
sound output .There are same monaural audio output come from R/L output terminals.
OUT IN
VIDEO VIDEOAUDIO AUDIO
(STEREO)
(MONO)
Operation Instructions
-22-
Video Menu Time Menu Setup Menu Exit Menu
1.Enter the video menu , you can select the picture quality instantly among four preset modes and one user-set mode.(User-set mode) Custom Standard Sports Movies Mild
*You can adjust CONTRAST ,BRIGHT , SHARPNESS , COLOR and TINT items by pressing the VOL. +/- buttons . The adjusted level is stored in Custom mode.
Turn the TV set on, then power indicator will light up. After a few seconds , the currently program number is displayed on the top right -hand corner of the screen.
MENU BUTTON1.Press this button to select menu. VIDEO, TIME, and SETUP menu can be selected cyclically.
2.After enters each menu, you can select the desired adjusting item by the PROG.+/- buttons, and adjust the item by the VOL. +/- buttons.
*When you select a item, symbols¡° / ¡± will display both sides of the item.
Video menu
Video
Time
Setup
CustomContrastBrightSharpnessColorTint
1616
1616
-15
Video
Time
Setup
ClockTimerTV OnTV Off
Off--:--
--:----:--
Time menu
Video
STSAP
MonoOn
Audio menu(option)
1.ST: Press the VOL.+/-buttons can select the stereo mode , the order shown below: Mono Spatial Linear Psuedo
2.SAP: You can adjust the SAP ON to SAP OFF by the VOL+/-buttons ,. You can use the Second Audio Program when you select the SAP ON . 3.BALANCE: Press the VOL+/-buttons can adjust the left or right volume balance . * The MTS/SAP function is only an option for some models.
Audio
Time
Setup
Balance 00
Audio Menu
Audio
Audio
(Option)
1.CLOCK: Press the VOL.- button to set hour, and the VOL.+ button set minute .
2.TIMER£ º When you select the "Timer ON" mode, you can set the time of TV ON or TV OFF. *TV On: The TV will automatically turn on at the preset time. TV Off: The TV will automatically turn off at the preset time.
-23-
Operation Instructions
1.SYSTEM you can switch two signals :CABLE and ANTENNA .2. CHANNEL Select the cable signal ,there are 01~125 channels Select the antenna signal , there are 02~69 channels .3.SKIP Select "Skip ON" by VOL.+/- Buttons to skip unnecessary program number.4.AUTO SEARCH Press VOL.+/-buttons to start auto searching. 5.FINE TUNE In areas of inferior broadcast conditions where adjustment is necessary for
PRESET MENU , CCD MENU AND V-CHIP MENU
Preset
System
Channel
Skip
Auto Search
Fine Tune
Antenna
03
Off
Closed
Caption
Mode
Channel
Field
Off
Capt.
1
Caption
1
CCD MENU
PRESET MENU
1.CAPTION Set the caption OFF or ON .2.MODE Select the caption mode or teletext mode .3.CHANNEL Select channel 1 or channel 2 .4.FIELD Select field 1 or field 2 .
V-Chip
Input Pwd
V-CHIP MENU
Input the password¡° 9999 ¡±to call up V-Chip, MPAA and TVPG item.
V-ChipV-Chip OnMPAA PGTVPG TV-14
1.V-CHIP Set the V-Chip OFF or ON .2.MPAA movie rating Select the type of program3.TVPG(TV Parental Guidelines) Parents can guide their children watching some programmes by the item.
1.After enters the setup menu, you press the PROG+/-buttons to select PRESET MENU, CCD MENU and V-CHIP MENU.
2.Select the Language item by the PROG+/-buttons, and press the VOL.+/-buttons to select the desired language . The screen menu is automatically displayed in that language.The order shown below: English Espanol Portugues
Setup menu
Video
Time
Setup
PresetCaptainV-ChipLanguage
Audio
Content-V BContent-S BContent-L BContent-D B
Mechanical Disassemblies
-24-
CABINET BACK REMOVAL1. Refer to Figure 1,remove 9 screws.2. Pull off cabinet back and remove.
CHASSIS REMOVAL1. Remove cabinet back.2. Discharge the picture tube anode(2nd anode lead) to the dag coating (picture tube grounding lead).3. Disconnect Degaussing coil socket(KE),Picture tube socket, Deflection yoke connector (KDY), Speaker connectors(KL and KR), and 2nd anode lead.4. Remove chassis completely by sliding it straight back.
CAUTION: Do not disturb the deflection yoke or magnet assembly on the picture tube Neck. Care must be taken to keep these assemblies intact, unless picture tube is being replaced. Discharge the picture tube to the coating before handing the Tube.1. Remove chassis, referring to Chassis Removal instructions. 2. Place cabinet front face down on the soft surface.3. Remove the screw on each corner of the picture tube and GENTLY lift the picture tube out of the cabinet.4. Install a replacement picture tube in reverse order. Properly install the degaussing coil and picture tube grounding lead on the picture tube. See Figure 2.
PICTURE TUBE REMOVAL
Note: If the Picture Tube is being replaced, mount the Degaussing Coil on the picture tube. See following..
DEGAUSSINGCOIL
DEGAUSSINGCOIL HOLDER
To CRT Unitground
PICTURE TUBEGROUNDING LEAD
DEGAUSSINGCOIL SOCKET
Cabinet Parts List
Key No. Part No. Description
1 SK140121NZM001(2) SPEAKER GRILLE(L&R)-SILVER BLUE #Sb001 (PVC) 2 SK100121NZM002 FRONT CABINET-METAL SILVER GREY #MSG001 W/AV (O-R-L-V) 3 SK100721NZM002 FRONT LENS (REMOTE CONTROL WINDOW) 4 FRONT LENS (LED WINDOW) 5 Sk190100821210 POWER KNOB SPRING - DIA.0.6SPRING WIRE 6 SK100425TM0002 SIDE AV JACK BRACKET-DARK GREY #DG001(ABS) 7 SK100821NZM001 CONTROL KEY KNOB-ELECTROPLATING SILVER(ABS) 8 SK060121NZM001 BACK LABEL SKYWORTH OVERSEAS ENG 9 SK100221NX0001 BACK CABINET-DARK GREY #DG001 10 SK1015HS080002 BOTTOM CABINET - NORMAL GREY #NG001(ABS) 11 SK1016HS080003 BATTERY DOOR-NORMAL GREY #NG001(ABS) 12 SK1014HS080012 TOP CABINET - NORMAL GREY #NG001(ABS)
SK100721NZM002
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,, ,,
11
10
12
,, ,,
-25-
54 371 6 128 9
C412
4.7U
/50V
WRITE1
IDsecam2
3
IDscart4
VOL5
COB.F6
POWER7
TUNE8
GND9
XTF110
XTF211
VDD12
KEY13
AFT14
PGCin15
OPT16
RESET17
FIL18
OPTselect19
Vsyn20
Hsyn21 R 22
G 23
B 24
BLK 25
26
DATA 27
CLK 28
IICDATA 29
IICCLK 30
SAFTY 31
BALANCE 32
SD 33
REMOTE 34
M_TRAP 35
S_VHS 36
AV1 37
AV2 38
MUTE 39
UHF 40
V_H 41
V_L 42
IC001LA8633XX
R030 330
R029 330
R031 330
R103120K
R10733K
C110330U/16V
C1081U/50V
C1044.7U/50V
1 2 3 4 5 6 7 8 9 10 11
TUNER
AD
D
RFA
GC
NC
SCL
SDA
VCC
VCC NC
33V IF1
IF2
SAW101
45B
C1140.01U
D007 1N4148
C1090.01U
C1070.01U
C1110.01U
C010
0.01
U
C001
0.01
U
C00715P
C00815P
C0110.01U
C2030.022U
C2060.01U
C0160.1U
C239 0.22U
C2190.33U
C4270.015UF
C2385n6
C215
0.022U
C2310.1U
C4010.1U/M
C222 0.01U
C2140.01U
C246
0.01U
C2420.001U
R0134.7K
R06724K
RD5
6.8K
RD4
11K
R442100
RD6
4.7K
RD8
3K
R405100
RD7
4.3K
R021 33K
RD21
15K
R0344.7K
R036 10K
R037 10K
R0321.5K R033
8.2K
R065
4.7K
R04310K
R2262.2K
R402
20K
R052 100
R049
4.7K
R048
4.7K
R047
4.7K
R046
4.7K
R051 100
R200 470
R007
100K
R008100K
R209 470
R208 47
R2124.7K
R210
3K3
R243
1K
R24110K
R225 1K R229 1K
R255 100
R256 100
R254 100
C406
100U
/16V
C415220U/16V
C009330U/16V
C445
100U
/25V
C4461U/50V
C447220/25V
C448100U/25V
C205100U/16V
C221
2.2U/50V
C20747U/16V
C2161U/50V
C212470U/16V
C2301U/50V
C2321U/50V
C3151U/50V
C23310U/16V
C2470.47U/50V
C2090.47U
Q0082SC1815
Q0072SC1815
Q221
2SC1815
Q0062SA1015
X001
32.768K
X2013.579545M
SW005
VOL+
SW007
PROG+
SW004
MENU
SW003
SLEEP
SW002
SEARCH
SW00
1
AV/TV
ZD0033.6V
L20345.75M
R233390
R711
5K1
R709
1K
R712
5K1
BI0
1
BCO
M3
BI3
4
BI1
5
INH
BIT
6
VEE
7
GN
D8
CON
A9
CON
B10
AI3
11
AI0
12
ACO
M13
AI1
14
AI2
15
VD
D16
BI2
2
IC401HEF4052
R435100
R437 10K
R439 10K
R436 10K
R438 10K
R464
10K
R43310K
R43210K
R43410K
R43110K
C43447U/16V
C43347U/16V
C43147U/16V
C43247U/16V
AR OUT
AL OUT
V IN 1
AR IN 1
AL IN 1
V OUT
C403
4.7U
/50V
C414
10U
/16V
C408
10U
/16V
C407
10U
/16V
C409
1U/5
0V
C410
1U/5
0V
C3121U/250V
C30147U/50V
C30310U/250V
C4511U/50V
C405
47U
/16V
C402
2.2U
/50V
R3311K5/1W
R404150
R403
8.2K
R4012.2K
R4671.8K
R4664.7K
R237560K
R2071K
R2355K1
R236680
R3405.1K
R31522K 1W
R039
100
R3163.9/2W
R4092.2K
C413
0.1U
/C
C4110.047UF
C404
0.00
82U
F
C3110.47U 250V
C3100.056U/250V
C3160.033U/M
C3080.056U/M
C302
680P/500V
C318680P/500V
C317680P/500V
D304BA158
D010 1N4148
D008 1N4148
D009 1N4148
D306BA157
D310BA158
1 2 3
IC302LA7809
C314.0076/2KVC313
.0047/2KV
Q3022SD2499
R31022 1/2W
Q3012SC2482
C3090.0022U/1KV
C322560P/500V T301R308
2.7K 1/2W
CN302
R307100
C426
0.00
82U
F
C424
0.01
5UF
Q4612SC1815
R3091K 1W
R710
5K1
R46815K
R4411K
D305
BA158
D301BA158
R318100K
R3301.5K
R3035.1K
C3240.47U
C3262200U/25V
C3231U/50V
C328
100U
/16V
C304220U/50V
C325100/16V
R30147K
R32910K R324
3.9K
R31915K
R3201.2 2W
R3272.2 2W
Q1012SC2717
L30144UH
R114220
R109270
R11047
R1085.6K
L1020.82UH
R1111K
R1050
INT
1
GN
D2
EXT
3
SW4
VO
L5
66
NF
7
GN
D8
OU
T9
VCC
10
IC402LA4285
INT
1
GN
D2
EXT
3
SW4
VO
L5
66
NF
7
GN
D8
OU
T9
VCC
10
IC403LA4285
C43810UF/50V
C43710UF/50V
R0381M
C4521000UF/25V
R050
9K1
C0130.022U
Q4642SC1815
R326270 2W
R102
100
R101
100
C014
4.7U/50V
R311180 1W
R322
0.68 2W
R3065.1K 5W
SPEAKER
8R 3W
FROM CN201
FROM CN301
SCREEN
FOCUS
OU
TL1
LDL
2
VIL
3
EOL
4
CAV
5
Vre
f6
LIL
7
AV
L8
SOL
9
LOL
10
CTW
11
CTS
12
CW13
CS14
VEO
15
VEI
16
CNR
17
Cm18
Cdec
19
GN
D20
SDA
21SC
L22
Vcc
23
COM
P24
Vca
p25
Cp1
26
Cp2
27
Cph
28
Cad
j29
CER
30
Cmo
31
Css
32
LOR
33
SOR
34
AV
R35
LIR
36
Cps2
37
Cps1
38
EOR
39
VIR
40
LDR
41
OU
TR42
IC404TDA9852
C416
100U
/16V
C423
0.01
5UF
R4072.2K
C419
2.2U
/50V
C439
10U
/16V
C420
4.7U
/50V
C422
2.2U
/50V
C421
4.7U
/50V
C425
2.2U
/50V
C0122.2U/50V
R406100
R41020K
C417
0.47
U/M
C442
0.01U
C4180.22U/MX401
503F58
5V(2)
5V(1)
5V(1)
CN001 PIN3
5V(1)
5V(1)
5V(1)
9V(2)
9V(2)
9V(2)
B+
9V(2)
9V(2)
5V(2)
9V(2)
5V(2)
9V(2)
9V(2)
33V
AV1/2 SW
AV/TV SW
1
2
3
M001
PMA64xxM
5V(1)
BLK
OSD-B
OSD-G
OSD-R OSD-R
OSD-G
OSD-B
BLK
ABL
V-SYNC
IC201 PIN40
POWER
VOL
AFT
AR-
OU
T
AL-OUT
AR-IN
AL-IN
AV
1/2
SW
AV VOUT
VOUT
POWER
V-SYNC
V-IN
25V4
1
2
7
3
8
106
!
T603 FBT
1
2
3
CN301R3170.68 2W
CN201
9V(2)
V-IN
AV V IN
AV V OUT
AUDIO L
VOL
AUDIO R
AR-OUT
AR OUT
AL-OUT
AL-OUT
SDA
SCLAUDIO R
AUDIO L
FM
C24139PF
L24115UH
C24539PF
C444220/25V SPEAKER
8R 3W
C6130.0022U/250V
1N5397 X4
L601DEG.COIL
AC110V
F601
T3.1
5A/A
C250
C602
.22/250V
CN601
C601A.0047
CN602
SCK473
R602
C601D.0047
C615680P/500V
C607
220U
/200
V
C610100UF/35V
C6234.7UF/160V
R601PTC
Q6012SC2482
Q6102SC1815
Q60978L09
Q6112SA966C617
2200U/25VR60739K/3W
D610BA158
D611BA158
D602IN4148
D604IN4148
D607BYW36
D640BA158
D608BA158
R61347/0.5W
R612 10K
R6112K2R610
680
R643
1K
R6421.2K
R62822
R6260
L601
C6090.0033/100V
IC603C611
0.1U/63V
C614
1000P
0.68/2W
R618
680P/500VC641
680P/500V
C619
100K/2WR644
10KR632
100U/160VC616
100U/160VC321
IC203L7805
T601
10KR629
0.22/1WR603
IN4148D609
1000U/25VC640
ZD6013V9
D601C
D601D
D601A
D601B
R6463K9
!
!
!
!
!
!
1
2
3
4
5
IC602
STR-G6653
OCP/FBCON
TRO
LBL
OCK
!
!
!
9V(2)
Q4622SC1815
R465
10K
AV
/TV
SW
R440100
AR IN
AL
IN
C004220P
R02222K
100PC005
RD3
22K
RD2
56K
VOL-
SW006
PROG-
SW008
RD92K
Q0032SA1015
R001 10K
R002
4K7
RD111K LED
A OUT1
FM OUT2
PIF AGC3
RF AGC4
IF IN5
IF IN6
IF GND7
IF VCC8
FM FIL9
AFT OUT10
BUS DATA11
BUS CLOCK12
ABL13
R IN14
G IN15
B IN16
FB IN17
VCC18
R OUT19
G OUT20
B OUT21
SYNC22
V OUT23
RAMP ALC24
H VCC25
H AFC FIL26
H OUT27 FBP IN 28
VCO IREF 29
NC 30
NC 31
OSD CON 32
H GND 33
XRAY 34
KILLER FIL 35
APC1 FIL 36
FSC OUT 37
XRAL 38
ACC FIL 39
V OUT 40
G V/C/B 41
EXT.V IN 42
VCC V/C/D 43
INT.V IN 44
BLACK S.F 45
TV OUT 46
FLL FIL 47
VCO 48
VCO 49
APC FIL 50
EXT.A IN 51
SIF OUT 52
SIF FIL 53
SIF IN 54
IC201LA76814
5V(2)R201
20KAFT
C237 100P
C236 100P
C240 10U/25V
9V(2)
C217 0.1U5V(2)9V(1)
R2141K
R2131K5
5V(2)
C2270.01U
R22222K
D221 IN4148R22110KC228
1000P
C23515P
4
6
5
1
3 7
9
12
11
10
T601R6052M2
R6082M2
L602
D6054148
B+
20V
5V(2)
VR601
2KB(H)
R6451K
!
R63010K
Q6022SC1815
C45310U/50V
3Y03 DIAGRAM
NTSC M
2001-09-27
TITLE:
SYSTEM:
P/N:
DATE:
C2240.001U
R40812/1W
ZD60215V
L N
!
!
!
!
11
22
33
44
55
66
77
IC301
LA7840
!
!
!
!
!
!
!
10
!
C6080.001U/2KV
0.22/1WR604
C605
680P/500V
IC004
33V 33V
R620150K 1/2W
R619
2.2 /2W
R625
15K 2W
20V
D401
4148
CPU PIN5
C6210.01U/50V
R653BA158
C618470U/25V0.1U
C612
0.01UC642
D2011N4148
R240
100K
C3270.1U
C320220U/16V
H-SYNC
CN201B
R511
2K7 1/2W
R514
15K/2W
Q5082SC1815
R52310K
C5050.01U
C503150P
1 BO
2 GO
3 RO
4 GND
5 +9V(2)
1 +180V
2 GND
3 HEATER
CRT PCB
C50710u/25V
W1
W2
W3
D5051N4148
Q503
2SC2482
D504
BA158
R5082K2
R503150
R524270
CN301B
R506390
V501 CRT
C5041000P/2KV
EHT
R510
2K7 1/2W
R513
15K/2W
C502150P
D5061N4148
Q502
2SC2482
R5072K2
R502
150
R505390
R5092K7 1/2W
R51215K/2W
C501150P
D5071N4148
Q501
2SC2482
R5042K2
R501150
R515390
C506470u/16V
R530150K/1W
C2430.047U/M
R719
1K
C450
0.022U
C440100P
C441
100P
C6300.01U
C62010U/50V
R6210 5V(1)
9V(1)
RR11
CR10.022U
5V(1)SW
5V(1) 5V(1)
AV V OUT
IC20
1 PI
N42
5V(2)
C4500.022U
C43510U/50V
Q4022SC1815
R44610K
9V(2)
C43610U/50V
Q401
2SC1815
R44510K
9V(2)
R4F1
75
FRO
NT
AV
(OPT
ION
)
R4134.7K
R4124.7K
J147
1K
ZD4018V2
L101100UH
R462
10K
R463
10K
R211
120
IC601L7805
R6222M7
R609
47
IC00224C04RD21
16K
