Service manual

ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
L4202
47uH 0305
L4401
47uH 0305
L4203
47uH 0305
L4206
47uH 0305
L4207
47uH 0305
L4402
47uH
0305
W870
W802
W929
W928
W867
W869
W852
W865
C4230
1025V KA
C4242
10025V YK
C4246
2216V KA
C4407
1016V V-S
C4401
10
16V V-S
C4404
10
16V V-S
C4402
10
16V V-S
C4260
10016V V-S
C4252
10016V V-S
C4261
10016V V-S
C4232
1025V KA
C4406
47
16V
V-S
C4408
1016V V-S
C4403
10
16V V-S
C4412
10016V YK
C4229
47P CH
C4215
1B
C4220
1B
C4210
470P CH
C4213
470P CH
C4214
47P CH
C4231
1B
C4201
1B
C4202
1B
C4203
0.01 B
C4205
470P CH
C4227
1B
C4217
47P CH
C4208
47P CH
C4225
1B
C4218
1B
C4221
1B
C4207
470P CH
C4224
1B
C4222
1B
C4223
47P CH
C4206
470P CH
C4256
33P CH
C4238
470PCH
C4243
0.01 B
C4247
0.01 B
C4240
1B
C4415
47P CH
C4405
0.01
B
C4251
1B
C4413
0.1 B
C4414
470P CH
C4211
47P CH
C4226
1B
C4233
1B
C4216
1B
C4228
470P CH
C4456
47P CH
C4416
47P CH
C4250
1B
C4265
47P CH
C4264
47P CH
C4239
470P CH
C4286
10P CH
C4471
2.2 B
C4469
2.2 B
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
R4256
390
R4216
820
R4223
1K
R4405
1K
R4404
1K
R4419
1K
R4418
100
R4416
100
R4417
100
R4220
100
R4231
5.6K
R4228
390
R4225
390
R4213
680
R4214
390
R4409
820
R4410
1K
R4211
10K
R4411
1M
R4403
1M
R4406
1M
R4412
1M
R4219
100
R4401
220 1/4W
R4402
330 1/4W
R4212
3.9K 1/4W
R4407
1M
R4408
1M
R4234
100
R4230
5.6K
R4233
100
R4209
3.9K 1/4W
R4210
10K
L4204
33uH
Q4206
KTC3875S_Y_RTK
BUFFER
Q4205
KTC3875S_Y_RTK
BUFFER
Q4203
KTC3875S_Y_RTK
BUFFER
D4211
UDZS12B
D4208
UDZS12B
D4210
UDZS12B
D4212
UDZS12B
D4202
UDZS12B
D4203 UDZS12B
IC4201 AN15853B-E1
AV SW IC
1 101112131415161718
19
2
20212223242526272829
3
303132333435
36
456789
S D
G
Q4208
KTK5132E
LEVEL SHIFT
S D
G
Q4210
KTK5132E
LEVEL SHIFT
CP4203
00_6232_029_006_800+
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
25
26
27
28
29
3
4
5
6
7
8
9
Q4233
KRC102SRTK
SW
D4209
1SS133
CP4201
A2001WV2-8P
1
2
3
4
5
6
7
8
CD4202
CU267901
CD4203
2H0T0801
CD4200
CU28A005
TR4204
W5T29X7.5X19
TR4202
W5T29X7.5X19
TR4201
W5T29X7.5X19
TR4205
ZCAT2436-1330A
TR3805
ZCAT2436-1330A
TR3806
ZCAT2436-1330A
TR4206
ZCAT2436-1330A
Q4410
KTA1504S_Y_RTK
BUFFER
Q4409
KTA1504S_Y_RTK
BUFFER
Q4401
KTA1504S_Y_RTK
BUFFER
Q4231
KRA103SRTK
SW
CAUTION: DIGITAL TRANSISTOR
IC4401 NJM2584AM(TE1)
COMPONENT1/2 YUV SW
1
10 11 12 13 14 15 16
2345678
9
IC4402
MM1501XNRE
PC/YUV Rch SW
123
456
CP4202_1 A2001WV2-6P
1
2
3
4
5
6
CAUTION: DIGITAL TRANSISTOR
AT+3.3V
AT+5V
P.CON+9V
GND
P.CON+5V
YUV1/YUV2_Y
DTUNER_PR
DTUNER_Y
SIDE_S_SW
DTUNER_PB
SIDE/DVD_Y
DTUNER_PR
YUV1/YUV2_PR
IR-THROUGH
DTUNER_PB
SIDE/DVD_C
DTUNER_CVBS
DTUNER_H
YUV1/YUV2_Y
YUV1/YUV2_PB SW_YUV_PR
YUV1/YUV2_PB
YUV1/YUV2_PR SW_YUV_PB
SIDE/DTUNER_V_IN
YUV1_A_IN_L SW_YUV_Y
YUV1_A_IN_R
YUV2_A_IN_L
DTUNER_H
YUV2_A_IN_R
S_SW_1
DTUNER_RESET
DTUNER_Y
S_SW_2
DTUNER_TX
S1_Y_IN
AUDIO_MUTE_L
S1_C_IN
DTUNER_POWER
S2_Y_IN
SIDE_A_IN_L
DTUNER_SD_H
S2_C_IN
DTUNER_RX
SIDE_A_IN_R
AV1_IN
TUNER_VIDEO
AV2_IN
DTUNER_CVBS
AV1_A_IN_L
S2_C_IN
AV1_A_IN_R
S2_Y_IN
S_SW_2
SW_CVBS
YUV2_A_IN_L
YUV2_A_IN_R
SCL
TUNER_VIDEO
SDA
SW_AUDIO_R[JACK]
SW_AUDIO_L[JACK]
SIDE/DTUNER_V_IN
STEREO_RESET
REMOCON_IN
SW_AUDIO_L[PC]
STANDBY_LED
SW_AUDIO_R[PC]
SIDE_S_SW
SIDE_A_IN_R
SIDE_A_IN_L
S_SW_1
DTUNER_H
SIDE/DVD_C SDA
AUDIO_MUTE_L
YUV1_A_IN_R SCL
DTUNER_RX
SIDE/DVD_Y
DTUNER_TX
DTUNER_RESET
YUV1_A_IN_L
AV2_IN
SW_AUDIO_R[PC]
SW_AUDIO_L[PC]
S1_C_IN
STEREO_RESET
AV1_A_IN_R
S1_Y_IN
DTUNER_POWER
AV1_A_IN_L
DTUNER_SD_H
AV1_IN
IR-THROUGH
STANDBY_LED
REMOCON_IN
GND
H-2H-1
PCBD20
CMF083
(AV PCB)
AV SWITCH2 SCHEMATIC DIAGRAM
NC DVD/AV3_SW
2.5
1.8
0
0
2.5
1.8
2.0
0
FROM/TO IR PASS THROUGH
D_L1_Vin
Vcc
BIAS
GND
SCL
SDA
6dB
6dB
Vref
+
6dB
D_SW_1
NC
4.7
4.7
4.5
0
5.4
7.5
4.7
7.5
5.4
0
0
5.4
7.5
5.4
0
5.4
7.5
4.5
4.7
4.6
4.7
0
3.5
3.5
0
4.7
7.5
5.7
4.5
5.7
4.5
4.5
9.0
5.3
5.0
SW_CVBS
SW_Y
SW_C
SW_A_L
TUNER_V
SIDE_A_IN_L
SIDE_C_IN
SIDE_Y_IN
3.35.0
3.3
8.9
1.5
2.1
8.9
1.5
2.1
8.9
1.8
2.4
YUV1_A_IN_R
YUV1_A_IN_L
S1_Y_IN
S1_C_IN
AV1_A_IN_R
AV1_A_IN_L
YUV2_A_IN_L
YUV2_A_IN_R
SW_A_R
AV1_IN
AV2_IN
S2_Y_IN
S2_C_IN
IN3A
OUT1
IN1B
NC
GND2
OUT2
OUT3
NC
IN3B
GND3
IN2A
CTL
V+
IN2B
GND1
IN1A
S_SW_1
S_SW_2
NC
GND
GND
SIDE_A_IN_R
SIDE_A_IN_L
SIDE_V_IN
SIDE_S_C
SIDE_S_Y
SIDE_S_L
IR-THROUGH
P.ON LED
AT+5V
GND
STANDBY LED
REMOCON IN
SIDE_V_IN
SIDE_A_IN_R
4.5
FROM/TO TUNER
FROM/TO AV JACK2
FROM/TO STEREO
5.0
3.3
3.3
FROM/TO TUNER
FROM/TO POWER
FROM/TO AV JACK
FROM/TO TUNER/OUT JACK
FROM/TO TUNER/OUT JACK
(CP803)
FROM/TO SCALER
5.0 5.0
0
0
5.0
0
8
9
10
(CP4200)
FROM/TO OPERATION/SIDE JACK/
FILTER/POWER SWITCH
FROM/TO IR PASS THROUGH
(CP2251)
Vcc
V.OUT GND
Vin1
0
5.0
3.3
Vin2
SW1
9.0
NC
NC
NC
SWITCH_VIDEO_C
GND
SWITCH_VIDEO_Y
GND
SWITCH_CVBS
GND
SDA1
SCART_AUDIO_SW
STEREO_RESET
SW_AUDIO_L(PC)
GND
GND
GND
SCL1
GND
SW_AUDIO_R(PC)
SCART3_SW
GND
GND
DTUNER_H
DTV_MUTE_L
GNP/INV_DET
DTUNER_RX
DTUNER_TX
DTUNER_RESET_L
DTUNER_POWER
DTUNER_SD_H