Hitachi 22LD3750DC Service Manual page 33

1
12V_STBY
R372
12V_STBY
12 22k
2
R371
12V_STBY
12 22k
3
C561
3
2
R337 100n
4
Q140 C497 C243 1
MUTE 12 2 16V
10k
BC848B
12 12
1
100n 100n
16V 16V
R373
12V_STBY 12
22k
R374
12
22k
3
R336
Q139
ON/OFF 2
12 10k
BC848B
1
F140 R271 L101
+8V 12
12 10R 12 12
600R 150u
C240 C424
2 2
100n 4n7
1 1
16V 50V
D114
12
1N4148
Q105
BC817-25
R158
12
75k
C244 C245
U712
2 2
100n 100n
LM1117
1 16V 1 16V
3 2
3V3_STBY IN OUT
1V8_STBY
C158 C155
GND VOUT
1 1
100u 100u
1 4
6V3 6V3
2 2
C262 C261
2 U707 2
100n 100n
LM1117
1 1
16V 16V
3 2
12V_STBY
IN OUT 5V_STBY
C160 C159
GND VOUT
1 1
100u 100u
1 4
6V3 6V3
2 2
R478
12 220R
R477
12 680R
INVERTER SOCKET
1V8_STBY
11 3V3_STBY
1 TP179
10 5V_STBY
AN/DIG_DIM
C248
2
9 12V_STBY
100n
1 TP180
1
8
BKL_ON/OFF
C249
2
7
100n
1
16V
6
5
4
L112
C503
2
+3V3
3 100n 12
10u
1
16V
2 +12V
C139
1
1 470u
16V
2
CN118
ADAPTER SOCKET
1
DC_12V 12
2
7A/32VDC
JK107
3
FS103
12 DC_IN_12V
4
7A/32VDC
5
No. 0249
+12V_AUDIO_LIPS
Q181
IRF7314
8
12V_STBY
FS101 D119 D120
5V_STBY
12 12 12 +12V_AUDIO
7
4A/24VDC 1N4001 1N4001
C498
2
100n
6
1
FS102 16V
12
+12V
5
4A/24VDC
R144
12 47R +33V
C449
C323
1
2
C322
L102 33n 3u3
1 50V
50V 2
12 3
150u
33n
50V
C131
2
820p
3
1
50V
2
C425
2
1
4n7
1
50V
R194
3V3_STBY
12 4k7 ON/OFF_NOT
3
R330
Q145
ON/OFF 2
12 10k
BC848B
1
U703
LM1117
F111
3 2
+12V 12
IN OUT +8V
26R
C540
C499 GND VOUT C506
1
2 2
100n 100u 100n
1 4
1 16V 1
16V 2 16V
C469 R272
C505
1
2
22u 100n 12 270R
16V 1
2 16V R368
12 1k5
1 TP147 +1V8 1 TP148 L111
+8V 12
10u
1 TP146 +3V3 1 TP149
C541
1
100u
1 TP166 +5V TP110 2 16V
1
TP167 +8V TP142
1 1
+12V_AUDIO TP144 L109
1
+5V
12
10u
+12V TP145
1 C542
1
100u
+33V 16V
1 TP143 2
L108
+5V
12
10u
C543
1
+3V3_HDMI 100u
16V
C556 2
C555
1
2
100u 100n
16V 1
2 16V
PANEL_VCC
3V3_STBY
R334
CN125 CN124
12
10k
1 1
FS106 PROTECT
2 2
DC_IN_12V
3
R335
Q144
3 3 2 12
10k
BC848B
4 4 1
5 5
C500
C255
2 1 8
100n BS SS
S220 12
12 1 C377
16V U696
C428
S218 100n
2 7
2
12 10n IN EN
16V
S219
12
1 C369
12 C134 16V MP1593 R255
1 1n
3 6
470u SW COMP 12 5k6
50V
12
16V
2 R338
8n2
45
GND FB 12 10k
50V
R470 R289
12 12
2k 15k
L107
12
22u
D121
2
12
1
SS33
D1
5V_STBY 12
C504
2
1N4148 100n
1 16V
C253
1 8
2
100n BS SS
S134
1 12
16V U697 ON/OFF
C645 C378
2 2 7 2
12V_STBY
10n IN EN 1n
1 1 C370
C140 16V MP1593 50V R256
1
3 6
470u SW COMP 12 5k6
12
16V
2 R344
8n2
45
GND FB 12 10k
50V
R171 R382
12 3k9 12 27k
L106
12
22u
D122
C254
2
12 100n
1
SS33 16V
1 TP139
Q183
FDC642P
PANEL_VCC
1 6
PVCC_ON/OFF
C246
2 5
2
100n
1
16V
R131
34
12
910R
C135
3 1
470u
R329
Q137
2 16V
12 10k 2
BC848B
C112
2
1
1U
1
16V
C142 C257
2
2 Q182
470u 100n
FDS4935
1 1
16V 16V
1 8
DC_12V
C258
2
100n
C560
2 2 7
1
100n 16V
1
R376 16V 12V_STBY
3 6
DC_12V
12 22k C141
1
R375 470u
4
5
SOFT_SW 16V
12 22k 2
F165
IDTV POWER
+5V 12
+8V_IF +5V_SPDIF
60R
C242 C562 C558
1
2 2
10u
100n 100n
1 1
16V 2 25V 16V
FS105
+12V
+5V_HP 12 +12V_MODULE
C260 4A/24VDC
2
100n
1
16V
DVD POWER
CN101
+12V_MODULE
+5V_TUNER 1
C547
C259
1
2
100n 100u 2
1 16V
16V 2
BAW56
D142
S168
12 +33V
2 1
R331
12
10k +12V
3V3_STBY
1
R332
Q167
12
10k
2 3
BC858B
3
12
+8V
C241 D118
2
100n BAW56
1 16V
Power
S221
12V_STBY 12
S222
5V_STBY 12
C496
2
100n
1
16V
FS104
12
3V3_STBY
C256 C442 4A/24VDC
3
2
100n 22u R341
1
16V 16V 12 2
10k
1
S223
12V_STBY 12
S224
5V_STBY 12
2
1
+5V
C443
2
22u
1
16V
R342
ON/OFF 12
10k
L104
12 +3V3
22u
L117 5V_STBY
12 +5V
22u
R544
ON/OFF
12 10k
CN108
1
+12V_MODULE
2
3
4
Q193
NTGS3446
1 6
1V8_STBY
1V8_STBY
2 5
R235
34
12 100R +1V8
C156
1
100u
C144
1
10u 2 6V3
2 16V
Q141
BC848B
Q192
FDC642P
1 6
C495
100n +3V3
2 5
16V
34
3V3_STBY
C145 C157
1 1
10u 100u
16V 6V3
2 2
3
Q142
2
BC848B
1
Q194
FDC642P
1 6
C620
2
100n +5V
2 5
1
16V
34
5V_STBY
C599 C600
1 1
10u 100u
16V 6V3
2 2
3
Q196
2
BC848B +5V_ONLY LIPS
1
LIPS OPTION CONNECTOR
CN131
1
ON/OFF_NOT
C622
2
2
SOFT_SW 100n
1 16V
3 BKL_ON/OFF
4 AN/DIG_DIM
C621
2
C102
5 100n
1
16V
12
6
220u
16V
7 +12V
8 +12V_AUDIO_LIPS
9
10 5V_STBY
11
12
13