Hitachi 22LD3750DC Service Manual page 33
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Also See for 22LD3750DC:
- Instructions for use manual (70 pages) ,
- Instructions for use manual (71 pages) ,
- Service manual (37 pages)
Table of Contents
Q181
IRF7314
1
12V_STBY
R372
12V_STBY
12
22k
2
R371
12
12V_STBY
22k
3
C561
3
2
R337
100n
4
Q140
MUTE
2
C497
C243
1
12
10k
16V
BC848B
12
12
1
100n
100n
16V
16V
R373
12V_STBY
12
22k
R374
12
22k
3
R336
Q139
ON/OFF
12
2
10k
BC848B
1
F140
R271
L101
L102
+8V
12
12
10R
12
12
600R
150u
150u
C240
C424
2
2
100n
4n7
1
1
16V
50V
D114
3
12
1N4148
Q105
BC817-25
1
R158
12
75k
C244
C245
U712
2
2
100n
100n
LM1117
1
1
16V
16V
3
2
3V3_STBY
IN
OUT
1V8_STBY
C158
C155
GND
VOUT
1
1
100u
100u
1
4
2
6V3
2
6V3
C262
C261
2
U707
2
100n
100n
LM1117
1
16V
1
16V
+12V
3
2
12V_STBY
IN
OUT
5V_STBY
C160
C159
1
GND
VOUT
1
100u
100u
1
4
6V3
6V3
2
2
R478
12
220R
R477
12
680R
INVERTER SOCKET
1V8_STBY
1
11
3V3_STBY
1
1
TP179
5V_STBY
10
AN/DIG_DIM
1
C248
2
12V_STBY
9
100n
1
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
FS106
DC_12V
12
2
7A/32VDC
JK107
3
FS103
12
DC_IN_12V
4
7A/32VDC
5
No. 0249
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+12V_AUDIO_LIPS
8
12V_STBY
FS101
D119
D120
12
12
5V_STBY
12
+12V_AUDIO
7
4A/24VDC
1N4001
1N4001
C498
2
100n
6
1
FS102
16V
12
+12V
5
4A/24VDC
5V_STBY
12V_STBY
R144
12
47R
+33V
C449
C323
1
2
C322
33n
3u3
1
50V
50V
2
12
3
33n
50V
C131
2
820p
1
50V
2
C425
2
4n7
1
50V
PVCC_ON/OFF
R194
3V3_STBY
12
4k7
ON/OFF_NOT
3
R330
Q145
ON/OFF
2
12
10k
BC848B
1
U703
LM1117
F111
3
2
12
IN
OUT
+8V
26R
C499
C540
C506
GND
VOUT
1
2
2
100u
100n
100n
1
4
1
16V
1
16V
2
16V
C469
R272
C505
1
2
22u
100n
12
270R
2
16V
1
16V
SOFT_SW
R368
12
1k5
+1V8
TP147
1
TP148
L111
+8V
12
+8V_IF
10u
TP146
+3V3
1
TP149
C541
C242
1
2
100u
100n
+5V
16V
1
TP166
TP110
2
16V
1
+8V
TP167
1
TP142
+12V_AUDIO
TP144
L109
1
+5V
12
+5V_HP
10u
+12V
1
TP145
C542
C260
1
2
100u
100n
+33V
16V
1
1
TP143
2
16V
L108
+5V
12
+5V_TUNER
10u
C543
C259
1
2
+3V3_HDMI
100u
100n
16V
1
C556
2
16V
C555
1
2
100u
100n
2
16V
1
16V
PANEL_VCC
3V3_STBY
R334
CN125
CN124
12
10k
3V3_STBY
1
1
Q167
PROTECT
BC858B
2
2
DC_IN_12V
3
R335
Q144
3
3
2
12
10k
BC848B
C241
2
4
4
1
100n
1
16V
5
5
C500
C255
1
8
2
100n
BS
SS
S220
12
1
C377
12
16V
U696
C428
S218
100n
2
2
7
12
10n
IN
EN
16V
S219
12
12
1
C369
C134
16V
MP1593
R255
1n
1
3
6
470u
SW
COMP
12
5k6
50V
12
2
16V
R338
8n2
45
GND
FB
12
10k
50V
R470
R289
12
2k
12
15k
L107
12
22u
D121
C256
2
2
12
100n
1
1
16V
SS33
D1
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
IN
EN
10n
1n
1
C370
16V
MP1593
1
50V
C140
R256
1
3
6
470u
SW
COMP
12
5k6
12
2
16V
R344
8n2
45
GND
FB
12
10k
50V
R171
R382
12
3k9
12
27k
L106
12
+5V
22u
D122
C254
C443
2
2
12
100n
22u
1
1
SS33
16V
16V
1
TP139
Q183
FDC642P
PANEL_VCC
1
6
C246
2
5
2
100n
1
16V
L104
R131
34
12
12
910R
22u
C135
1
3
R329
470u
L117
Q137
2
16V
12
10k
2
12
BC848B
22u
C112
2
1
1U
1
16V
C142
C257
2
2
Q182
470u
100n
FDS4935
1
16V
1
16V
1
8
DC_12V
C258
2
C560
100n
2
7
2
1
100n
16V
1
R376
16V
12V_STBY
3
6
DC_12V
12
22k
C141
1
470u
R375
4
5
12
2
16V
22k
F165
IDTV POWER
+5V
12
+5V_SPDIF
60R
C562
C558
1
2
10u
100n
25V
1
+12V_MODULE
2
16V
FS105
+12V
12
+12V_MODULE
4A/24VDC
DVD POWER
CN101
+12V_MODULE
1
C547
1
100u
2
16V
2
BAW56
D142
S168
12
+33V
2
1
R331
12
10k
+12V
1
R332
12
10k
2
3
3
12
+8V
D118
BAW56
Power
S221
12V_STBY
12
S222
5V_STBY
12
C496
2
1V8_STBY
100n
1
16V
R235
12
100R
FS104
12
3V3_STBY
C442
4A/24VDC
3
22u
R341
Q141
16V
12
2
10k
BC848B
1
S223
12V_STBY
12
S224
5V_STBY
12
C495
2
100n
1
16V
3
R342
Q142
ON/OFF
12
2
10k
BC848B
1
+3V3
5V_STBY
+5V
C620
2
100n
1
16V
3
R544
Q196
ON/OFF
2
12
10k
BC848B
1
CN108
LIPS OPTION CONNECTOR
1
2
CN131
3
1
4
2
3
4
5
6
7
8
9
10
11
12
13
Q193
NTGS3446
1
6
1V8_STBY
2
5
34
+1V8
C156
1
C144
100u
1
6V3
10u
2
16V
2
Q192
FDC642P
1
6
+3V3
2
5
34
3V3_STBY
C145
C157
1
1
10u
100u
2
16V
2
6V3
Q194
FDC642P
1
6
+5V
2
5
34
5V_STBY
C599
C600
1
1
10u
100u
16V
6V3
2
2
+5V_ONLY LIPS
ON/OFF_NOT
C622
2
SOFT_SW
100n
1
16V
BKL_ON/OFF
AN/DIG_DIM
C621
2
C102
100n
1
16V
12
220u
16V
+12V
+12V_AUDIO_LIPS
5V_STBY
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