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LCD COLOR TELEVISION
MODEL LC-32AD5E-BK
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored
to its original condition and only parts identical to those specified should be used.
CONTENTS
Page
· SERVICING NOTICES ON CHECKING .............................................................................. A1-1
· HOW TO ORDER PARTS .................................................................................................... A1-1
· IMPORTANT ......................................................................................................................... A1-1
· HOTEL MODE FUNCTION .................................................................................................. A1-2
· ABOUT LEAD FREE SOLDER (PbF) .................................................................................. A1-3
· PARENTAL CONTROL - RATING LEVEL ........................................................................... A1-3
· GENERAL SPECIFICATIONS .............................................................................................. A2-1~A2-6
· DISASSEMBLY INSTRUCTIONS ........................................................................................ B1-1~B2-2
· SERVICE MODE LIST .......................................................................................................... C-1
· WHEN REPLACING EEPROM (MEMORY) IC .................................................................... C-2
· SERVICING FIXTURES AND TOOLS ................................................................................. C-3
· INSTALL FOR WRITING TOOLS ......................................................................................... C-3
· RE-WRITE FOR DIGITAL SOFT FIRMWARE ..................................................................... C-4~C-13
· ELECTRICAL ADJUSTMENTS ............................................................................................ D-1~D-7
· TROUBLESHOOTING GUIDE ............................................................................................. E-1~E-7
· BLOCK DIAGRAM ................................................................................................................ F-1~F-14
· PRINTED CIRCUIT BOARDS .............................................................................................. G-1~G-10
· SCHEMATIC DIAGRAMS .................................................................................................... H-1~H-40
· WAVEFORMS ...................................................................................................................... I-1, H-2
· MECHANICAL EXPLODED VIEWS ..................................................................................... J-1~J-4
· REPLACEMENT PARTS LIST ............................................................................................. K1-1~K2-12
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
ELECTRICAL ADJUSTMENTS
3. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION)
LCD PANEL
DIGITAL PCB
CD403
CD7204
CP3001
CP2203
CP6401
OPERATION PCB
CP4305
CP3603
CD4302
CP3601
J4301
CP4302
CP7201
FAN
POWER PCB
CP6001 CP102
CD3400
TU6002
CP3400
CP406 CP4202
J4203
CP411
CP3801
J4204
J4205
CP412
CP3802 J4206
CP301 CP4301
CD301
J401
AC IN MAIN PCB
CD3805
SPEAKER
CD4301
OS2201
CP2201
REMOCON PCB
D-7
TROUBLESHOOTING GUIDE
POWER DOES NOT TUNER ON
Is F401 broken? Yes
Change F401.
No
Is there voltage at pin No Check IC401 and peripheral
10 of IC401 at 18.9V? circuit.
Yes
Is there voltage at pin No Check IC402 and peripheral
4 of IC402 at 15.1V? circuit. Or change IC402.
Yes
Change MAIN PCB.
E-1
TROUBLESHOOTING GUIDE
THE PICTURE DOES NOT
APPEAR (1)
No
Is CD7204 connected? Connected CD7204.
Yes
Is there signal No
Change CP7201.
at CP7201 ?
Yes
Check IC803.
Or change SCALER PCB.
E-2
TROUBLESHOOTING GUIDE
THE PICTURE DOES NOT
APPEAR (2)
No Check IC4205 and
Is there signal at at
IC4205 ? peripheral circuit.
Yes
Check IC803 and
peripheral circuit.
E-3
TROUBLESHOOTING GUIDE
THE PICTURE DOES NOT
APPEAR. (DIGITAL)
No Change DIGITAL TUNER
Does an error
message display MODULE.
Yes
Is there signal at pins No Change DIGITAL TUNER
2 and 3 of CP2402? MODULE.
Yes
Check SUB POWER PCB.
E-4
TROUBLESHOOTING GUIDE
THE COLOR DOES NOT
APPEAR
No
Is setting of color
Change the setting of color.
normal?
Yes
No
Is the color signal Receive the color signal.
received?
Yes
Check IC803 and peripheral
circuit.
E-5
TROUBLSHOOTING GUIDDE
ON SCREEN DISPLAY DOES
NOT APPEAR
Is there signal at No Check IC101 and
pins 2, 4 of IC101? peripheral circuit.
Yes
Is there color signal No Check IC803 and peripheral
at pins 83 and 84 of
circuit.
IC803 ?
Yes
Change MAIN PCB.
E-6
TROUBLESHOOTING GUIDE
THE SCREEN HAS A VERTICAL
LINE OR A HORIZONTAL LINE.
Is there a normal
No
waveform at pins 184,
Change V2301.
187 and 190 of IC803?
Yes
Change IC803.
E-7
TUNER/SCART1/SCART2/RCA AUDIO OUT BLOCK DIAGRAM
TU6002 TUNER
AGC 4 RF_AGC
SCL 9 Q6001,6002 IC6001 BUS_SW SCALER/SUB
SDA 10 15 SCL F_SCL 1 F_SCL
MICON
14 SDA F_SDA 13 F_SDA
CVBS 15 D_TUNER_SCL 2 D_TUNER_SCL
D_TUNER_SDA 12 D_TUNER_SDA
IF AGC 18
SCALER/ SUB MICON SOUND AMP/
DIF1 19 DIF1
HEADPHONE
DIF2 20 DIF2
IF_AGC JACK/
IC4201 TUNER_OUT_CVBS_SW COMPONENT
6 TU_TUNER_CVBS_IN D_TUNER_CVBS_IN 4 D_TUNER_CVBS
2 OUT
J4206 SW_CVBS_(TU/D_TU)
R_OUT 1 SC1_A_OUT_R
L_OUT 3 SC1_A_OUT_L
SCART1_Y_IN
L_IN 2
R_IN 6
IC4204 SCART1/2_RGB_SW
21-B_IN 7 8 SCART1_B_IN SW_SCART_R/C_OUT 3 SW_SCART_R/C
21-G_IN 11 11 SCART1_G_IN SW_SCART_G_OUT 5 SW_SCART_G
SCART 1 21-R_IN 15 16 SCART1_R_IN SW_SCART_B_OUT 6 SW_SCART_B
(21-C_IN)
21-Y_IN 16 1 SCART2_R/C_IN
9 SCART2_B_IN
FOR_VCR 8 14 SCART2_G_IN
SCART1_SW
TUNER OUT 19
VIDEO IN 20 IC4203 SCART1/2_AUDIO_Lch_SW
4 SC2_A_IN_L A_L_OUT 2 SW_A_L
R_OUT 22 SC2_A_OUT_R (SCALER IC803 21pin) 6 SC1_A_IN_L
L_OUT 24 SC2_A_OUT_L (SCALER IC803 22pin)
L_IN 23 IC4202 SCART1/2_AUDIO_Rch_SW SCALER/ SUB
R_IN 27 4 SC2_A_IN_R A_R_OUT 2 SW_A_R MICON
6 SC1_A_IN_R
21-B_IN 28
21-G_IN 32 IC4206 SCART1/2_VIDEO_SW
SCART2 21-R_IN 36 4 SCART2_V_IN V_OUT 2 SW_SCART_CVBS/Y
(21-C_IN) 6 SCART1_V_IN
21-Y_IN(FB) 37 SCART2_FB(Y_IN)
FOR_VCR 29 SCART2_SW
MONITOR OUT 40 SC2_CVBS_OUT
VIDEO IN 41
J4204 AV_AUDIO_OUT/S-TERMINAL_JACK
S_JACK_C/ S_JACK_Y
CVBS_IN
VIDEO_A_L
VIDEO_A_R
AUDIO_OUT_JACK_L
AUDIO_OUT_JACK_R
F-1 F-2
POWER/REGULATOR BLOCK DIAGRAM
CP3801
SOUND+B 1 SOUND+B
SOUND+B 2
IC3801 REG
SW+12V 8 P.CON+9V
SW+12V 9
AT+5V 14 AT+5V
AT+5V 15
P.CON+5V 20 P.CON+5V
P.CON+5V 21
SW+3.3V 22 SW+3.3V
SW+3.3V 23
SW+12V
Q3805/Q3804 SW_TR
P.CON+12V_DTV
Q3202
AT+3.3V
IC3203
IC3205 5V_REG
P.CON+5V
D3804
IC3203 REG
AT+1.8V_1
D3204
IC3204 REG
AT+1.8V_2
D3205
Q3806 SW
IC3201 3.3V_REG
HDMI+3.3V
D3202
Q3205 SW
HDMI_VNREG+5V
F-3 F-4
SCALER/SUB MICON BLOCK DIAGRAM
CP7201 LCD PANEL
CP3802
LCD+B 8
LCD+B 9
LVDS+/- V2301
DTV_H
DTV_LPM_CTL_H
LPM_INT
DTV_RESET
SOUND AMP/ DTV_TX/RX
HEADPHONE JACK/ DTV_TX/RX
COMPONENT JACK D_TUNER_AUDIO_L 10 106 91/92 102 88 87 128 15 SW_A1_R
D_TUNER_AUDIO_R 9 129 16 SW_A1_L HDMI/D-SUB
131 ~ 135 172/173/174 VGA-R/G/B
SW_Y/D_Y 137 ~ 141 SDA/SCL
SW_PB/D_PB 179~181
SW_PR/D_DR CP4301 REMOCON_PCB
REMOCON
AUDIO_OUT_JACK_L/R 25/26 MAIN MICON/SCALER 89
IV803 EPG_LED 100
VIDEO_A_L/R 13/14 VCT6973G-FA-B3-000 STAND_BY_LED 117
S_JACK_Y/C 184/187
SW_CVBS(TU/D_TU) 191 79 X801
SC1_A_OUT_R 23 78 20.25MHz
SC2_A_OUT_L 24 CP4305 OPERATION_PCB
SCART1_Y_IN 175
SC2_A_OUT_R 21 KEY_A/B/C159/160/162
SC2_A_OUT_L 22
SW_SCART_R/C 178
SW_SCART_G 177
SW_SCART_B 176
TUNER/ 48 ~73
SCART1/ SW_A_R 11 DEN/DCLK IC801 256K EEPROM
SCART2/ RCA SW_A_L 12 DRI0~7/DGI0~7/DBI0~7 84 5 SDA
AUDIO OUT SW_SCART_CVBS/Y 189 83 6 SCL
SCART2_FB(Y_IN) 183 195 8 38 39 40
M24256-BWNM6TP
SC2_CVBS_OUT
1
IC802 SYSTEM RESET DEN/DCLK
DRI0 7/DGI0 7/DBI0 7
IC101 SUB MICON R5F21244SNFP IC105 RESET HDMI/D-SUB
8 1 HDMI I2S
SCART1_SW 42
SCART2_SW 43
9
RF AGC 41 X101 16MHz
11 Q101/Q102
HP_IN 25 F.SDA 4
F.SCL 2
23 24
RS232_RXD RS232_TXD
IC102
CP102 ISL83220ECVZ-T
MD24-95V-EC 9 11
RS232_RXD 2 8
RS232_TXD 3 13
SOUND AMP/
HEADPHONE JACK/ F.SDA
COMPONENT JACK F.SCL
F-5 F-6
HDMI/D-SUB BLOCK DIAGRAM
SW_A1_R
SW_A_L
IC4304 VGA-R/VGA-G
J4301 AUDIO_MINI_PIN_JACK YUV/DVI_Rch_SW VGA-B
PC/DVI1_A_IN_R SDA/SCL
DVI2_A_R H-SYNC SCALER/ SUB
V-SYNC MICON
PC/DVI1_A_IN_L DEN/DCLK
DVI2_A_L DRI0~7/DGI0~7/DBI0~7
HDMI_I2S
IC4303 IC3605 HDMI_I/F SiI9025CTU
J4202 AUDIO_IN_JACK YUV/DVI_Lch_SW 110~144
YUV_A_R
YUV_A_L Q4303
COAXIAL
CP4302 D-SUB_CONNECTOR VGA-R
VGA-G Q4306 96
VGA-B X3602 28.322MHz
97
SDA DDHS
SCL
VGA_VS
IC3601 1.8V_REG POWER/
VGA_HS 94 REGULATOR
HDMI_VNREG+5V
2
3
DDVS
31 39, 40, 43, 44, 58, 59, 62, 63
32 47, 48, 51, 52 66, 67, 70, 71 29 30
DIGITAL
DIGITAL SIGNAL
D_TUNER_SPDIF IC3606 SIGNAL IC3609
2K EEPROM 2K EEPROM
BR24L02F-WE2 BR24L02F-WE2
15 15
16 16
HDMI CONNECTOR HDMI CONNECTOR
CP3601 CP3603
F-7 F-8
SOUND AMP/HEADPHONE JACK/COMPONENT JACK BLOCK DIAGRAM
IC4205 D.TUNER/YUV_SW
J4203 COMPONENT_JACK
8
11
Y_IN 16 3 SW_Y/D_Y
PR_IN 5 SW_PB/D_PB
PB_IN 1 6 SW_PR/D_PD
9 DTV_LPM_CTL_H
14 D_TUNER_AUDIO_L
D_TUNER_AUDIO_R
DTV_TX/RX SCALER/ SUB
DTV_RESET MICON
LPM_INT
SP_AUDIO_OUT_L
SP_AUDIO_OUT_R
DTV_H
AUDIO_MUTE
HP_MUTE
CP6001 (FROM/TO DIGITAL_PCB) HP_IN
A_OUT_L 1
A_OUT_R 2
LPM_INIT 3 IC301 SOUND_AMP
POWER_CTL 9
CVBS 5 2
TVTX 6 SP_L+/- CP301 SPEAKER
5
TVRX 8
SP_R+/-
RESET 10
Y 11 14
D.TUNER YUV
U 13
V 15
DTV-H 7
SPDIF 23
SCL/SDA 21/25
DIF1 27
DIF2 29 IC300 HEAD_PHONE_AMP J4205 HEAD_PHONE_JACK
IF_AGC 30
3 18
19
2
IF_AGC
DIF2 4
TUNER/SCART DIF1
1/SCART2/
RCA AUDIO
OUT D_TUNER_SCL
D_TUNER_SDA D_TUNER_SPDIF HDMI/D-SUB
D_TUNER_CVBS
F-9 F-10
DIGITAL_BLOCK DIAGRAM
30pinBOARD
A.B.E
to BOARD
DDR B FLASH CONNECTOR
256Mbit 16Mbit E 125622330K3
C.D.F IC2403 IC240
MEPGTS
Digital IF+/- OFDM CP6403
STV0362 1.AOUTR
12C 12C
IC4001 AUDIO OPEAMP 2.AOUTL
TXR TSH73CD 5.CVBS
AUDIO L+L- IC6406 6.TVTX
MPEG AUDIO R+R-
E
8.TVRX
STM5105
9.POWER CTL
IC2401
10.RESET
EEPROM64K
M24C4WMN6TP
IC2409 11. Y
13. U
G G 15 .V
17. 12V
18. 5V
20.22.24. 3.8V
Flash ROM Common Interface
Update (PCMCIA)
CP2402 CP3001/3002
7.DTV_H
3.LPM_INT
21.25. SCLT/SDAT
27.29 IF+/-
30. IF_AGC
23. SPDIF
A. 1.2V REG
B. 2.5V IC6401.6402
C. 1.0V IC6405.6407
D. 2.5V
REG
E. 3.3V
IC6403
F. 3.3V
IC6404
F-11 F-12
POWER(POWER PCB) BLOCK DIAGRAM
L403 12 11 10 9 8 7
L401 L402 1 3 4 5 6
CD3805 F401
3 4 3 4
AC IN CP411_11.SYS_POWER
1 2 1 2
J401
TRANSFORME SW CP411_20,21.P.CON
T402
D425
D427 1 CP411_16. POWER_FAIL
Q416
D430 +
D431 C424 8 CP411_14,15. AT+5V
3
2 3 SW CP412_1.DTV_H
1 4 5 IC406+Q41
AL101 CP411_22,23.SW+3.3V
RERAY D457 SR240-F RSS050P0
D408
RY40 2 POWER SW DC-DC
ALKS329 A60
4 1 IC402
REGULATO
3 D Vcc FB Vdd IC404 KIA431A-AT D462 SR240-F
5 4 2 1
IC410
POWER SW PS2561AL1-1-V(W) 1 3
IC401 MP2A5060 +
4 1
Vcc Q1 P.GND C405
3 2
1 1 8
TRANSFORME
T401
2 10 CP411_1,2. SOUND+B
7 17 CP406_1,2,3,4,5. +24V
3 12V
18
Q422
13 CP411_8,9. SW+12V
KTB1151
DC-DC
14
IC407 CP412_8,9. LCD+B
LA5779
CP412_6. PANEL_POWER_H
F-13 F-14
G-1
L4203 L4205
Q4204
C4277
SH4307
B4306
Q4205
SH4301
B303
B302
L4202 L4204
Q4309 Q4305
D4305 C4358
CP301
Q4208
R4327
L4206 L4211 D4212 B4309
Q4210
C4359 B4307
L4223
L4219
D4214
CP4301_1
IC4202
R4287
Q4308
R4268 W912 D4258 R4335 W819 B4318
B304
B301
L4232
C4374 D4255
R4264
C4285 C4379
Q4310
D4215
W826
R4261
L4224
R4276 D4213
IC4203
R4300
R4267
C4381 C384
R335