Sharp LC-46LD266K (serv.man2) Service Manual ▷ View online
73
LC-46LD264
LC-46LD265
LC-46LD266
POWER SCHEMATIC DIAGRAM 2/2 ( LED DRIVER)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
I
H
G
F
E
D
C
B
A
LC-46LD264–LC-46LD265–LC-46LD265RU–LC-46LD266
77
02 4V to VLED (DC/DC)
+
C8501
330UF 35V
C8518
1NF
R8526
100K 1/8W
C8521
100N 50V
NC
1
2
ZD8501
MTZJ12B
R8531
2 OHM +-1% 1/4W
C8527
NC
50" 1.54A
1
2
3
4
5
6
7
8
9
10
11
12
CN8501
CONN
R8536
2 OHM +-1% 1/4W
ILED
24V
ILED
VLED
VLED
L8503
3UH
HEAT SINK(D8120,Q8101)
C8522
100N 50V
R8518
100KOHM +-5% 1/8W
C8520
NC
R8517
100K
R8513
100KOHM +-5% 1/8W
C8504
1N 50V
1
2
D8502
NC
R8502
0.2OHM 2W
R8529
1oHM 1% 1/4W
C8526
100N 50V
C8507
1uF
R8525
1oHM 1% 1/4W
R8532
NC
C8510
470P 50V
R8521
10K OHM
R8512
10KOHM
C8525
1uF
R8530
1oHM 1% 1/4W
R8523
1Kohm +-1% 1/4W
R8501
0.2R 2W
C8524
100N 50V
Q8503
LMBT3904LT1G
C8517
100NF 250V
C8523
1uF
R8509
4K7 1/8W 1%
R8508
22KOHM 1/8W +-1%
C8503
1uF
C8509
0.47UF 50V
R8505
NC
R8515
100KOHM +-5% 1/8W
R8524
1oHM 1% 1/4W
UVLS
1
VCC
2
ENA
3
VREF
4
RT
5
PWM
6
ADIM
7
TIMER
8
SSTCMP
9
ISEN
10
PROT
11
ISW
12
OVP
13
GND
14
DRV
15
FAULT
16
IC8501
OZ9902CGN
C8511
100P 50V
R8506
56KOHM +-1% 1/8W
R8511
2K2 1/8W 1%
R8516
39K 1/8W 1%
R8520
100KOHM +-5% 1/8W
R8504
47R
R8519
100R
C8519
100P 50V
Q8502
EMBA2N10A
C8508
1N 50V
R8522
10K OHM
C8505
2.2UF 50V
Q8501
PA410BD
R8510
10 OHM 1/4W
R8503
1K 1/4W
C8506
R8507
3K3 1/8W 1%
R8528
10 OHM
R8527
10 OHM
C8528
1N 50V
C8516
1N 50V
R8533
NC
+
C8513
47uF 100V
3
1
2
4
L8501
33uH
+
C8514
47uF 100V
R8514
10K 1/4W
12V
+
C8515
47UF 100V
1
2
3
D8501
SP10100
3
4
1
2
HS8502
HEAT SINK
3
1
2
D8503
BAV70
+
C8512
47uF 100V
DIM
On/Of f
TIMER
TIMER
74
LC-46LD264
LC-46LD265
LC-46LD266
KEY SCHEMATIC DIAGRAM
LC-50LD264–LC-50LD265–LC-50LD265RU–LC-50LD266
77
[3] KEY SCHEMATIC DIAGRAM
FUNC_KEY
PWR-SW
33G8032 4F HR
0.431V~0.477V
Source Select
MENU
VOL-
VOL+
Power ON/OFF
CH+
CH-
R05
750OHM +-1% 1/8W
R04
1K 1/8W 1%
R01
7K5 1/8W +/-1%
R03
1K8 +/-1% 1/8W
R02
2K7 1/8W 1%
1.667~1.843V
2.385V~2.636V
2.722V~3.008V
2.074V~2.292V
0.797V~0.881V
1.271V~1.405V
R06
750OHM +-1% 1/8W
R07
750OHM +-1% 1/8W
1
2
3
4
6
5
CN01
CONN
FUNC_KEY
PWR-SW
SW07
TACT SW FWRD H1.5MM
SW06
TACT SW FWRD H1.5MM
SW05
TACT SW FWRD H1.5MM
SW04
TACT SW FWRD H1.5MM
SW03
TACT SW FWRD H1.5MM
SW02
TACT SW FWRD H1.5MM
SW01
TACT SW FWRD H1.5MM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
I
H
G
F
E
D
C
B
A
75
LC-46LD264
LC-46LD265
LC-46LD266
IR SCHEMATIC DIAGRAM
LC-50LD264–LC-50LD265–LC-50LD265RU–LC-50LD266
78
[4] IR SCHEMATIC DIAGRAM
GND
1
GND
2
OUT
3
VCC
4
U201
IRM-H938M3/TR2
IR
C201
0.1uF 50V
VCC
R201
15K 1/10W
081G 14 24 EL
R203
220 OHM 1/10W
LED_B
LED_R
1
2
3
4
RED
BLUE
LED201
LED
R202
220 OHM 1/10W
1
2
3
4
5
6
7
CN201
CONN
356GS927057
033G8032 5F S B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
I
H
G
F
E
D
C
B
A
76
LC-46LD264
LC-46LD265
LC-46LD266
PRINTED WIRING BOARD
LC-50LD264–LC-50LD265–LC-50LD265RU–LC-50LD266
51
CHAPTER 7.
PRINTED WIRING BOARD
[1] MAIN UNIT PRINTED WIRING BOARD
MAIN UNIT(Side-A)
C148
C149
C402
C644
C647
C721
C722
C156
R198
R440
X101
X401
C103
C744
C411
C172
C186
C186
C1026
C1042
C115
C116
C132
C134
C177
C193
C201
C428
C430
C440
C444
C450
C451
C454
C456
C461
C463
C610
C614
C615
C619
C621
C623
C624
C625
C626
C628
C630
C631
C634 C636
C638
C639
C640
C642
C678
C679
C684
C708
C717
C718
C704
C152
C173
C426
C620
C629
C712
C715
C725
C726
C732
C737
R408
R466
R470
R471
R605
R606
R607
R608
R714
R734
R707
D602
D702
R746
C190
C746
C762
C743
C742
R739
R704
R751
ZD701
ZD702
ZD703
C709
C466
C467
C465
C470
R482
R483
R484
R503
D401
R180
C681
C616
C617
SH1
ME1
ME2
ICT1
ICT2
ICT3
FB1
CN159
U101
D701
D704
D703
C102
C104
C1040
C106
C107
C108
C110
C111
C110
C111
C114
C119
C124
C126
C127
C130
C144
C145
C153 C157
C158
C159
C160
C161
C162
C163
C164
C165
C166
C167
C169
C170
C171
C178
C179
C404
C405
C410
C412
C413
C429
C434
C447
C448
C460
C501
C502
C503
C503
C685
C604
C605
C606
C607
C446
C184 C185
C731
C740
C763
C703
C747
ZD501
C409
FB105
FB501
FB106
FB401
R1001
R1002
R1003
R1004
R1005
R1006
R1007
R1008
R1009
R1010
R1011
R1012
R1013
R1014
R1015 R1016
R1017
R1018
R1019
R1020
R1021
R1022
R1023
R1027
R1028
R105
R1068
R1080
R1092
R1084
R1085
R1086
R109
R1091
R112
R117
R118
R119
R126
R130
R132
R138
R143
R144
R144
R151
R153
R155
R156
R157
R161
R164
R167
R168
R169
R170
R171
R172
R173
R174
R175
R176
R747
R178
R179
R703
R181
R182
R183
R184
R185
R186
R187
R188
R189
R190
R191
R192
R193
R194
R195
R196
R197
R199
R407
R414
R417 R418
R427
R428
R436
R439
R441
R455
R457
R461
R473
R474
R501
R512
R601
R602
R603
R603
R604
R1030
R708
R722
R723
R724
R725
R728
R729
R730
R104
R702
R748
R743
U403
U705
Q402
R1029
R1087
R1088
R448
C441
C716
C105
C187
C188
C189
R1100
R1101
R1102
R1103
R1104
R1105
R1106
R1107
R1108
R1109
R1110
C406
C407
M9
M10
ZD401
CN601
U706
CN160
CN103
CN151
CN603
CN604
TU101
TU102
TU103
C101
C1043
C1071
C1072
C109
C112
C113
C117
C118
C120
C121
C122
C123
C125
C128
C129
C131
C133
C135
C136
C137
C138
C139
C142
C143
C761
C150
C151
C154
C155
C174
C175
C176
C181
C182
C401
C403
C414
C415
C416
C417
C418
C419
C425
C427
C432
C433
C435
C436
C437
C438
C443
C452
C453
C457
C458
C459
C464
C504
C505
C506
C601
C602
C603
C608
C611
C612
C613
C618
C622
C627
C632
C633
C635
C637
C641
C643
C645
C646
C648
C660
C661
C664
C680
C701
C706
C710
C711
C713
C714
C733
C735
C736
C738
C739
CN402
CN401
ZD101
ZD102
ZD103
ZD104
ZD105
ZD106
ZD107
ZD108
ZD109
ZD110
ZD111
ZD113
ZD114
ZD115
ZD117
ZD118
ZD119
ZD504
ZD505
ZD506
ZD507
ZD514
ZD515
ZD516
ZD517
ZD518
ZD601
C707
FB403
FB503
FB603
FB604
FB605
FB606
FB607
FB608
FB609
FB610
L101
FB101
FB402
FB404
FB602
FB701
FB702
FB703
L702
ZD112
R102
R1024
R1025
R1026
R103
R106
R107
R108
R1089
R1090
R1097
R1098
R110
R113
R114 R115
R120
R121
R122
R123
R124
R125
R127
R128
R129
R131 R133
R134
R135
R136
R137
R139
R140
R146
R147
R149
R150
R152
R158
R159
R160
R162
R165
R401 R402 R403
R404 R405
R409
R411
R412
R413
R415
R416
R419
R420
R421
R422
R423
R425
R430
R431
R432
R433
R434
R435
R437
R438
R442
R443
R444
R1111
R737
R742
R456
R460
R460
R464
R465
R467
R468
R469
R472
R476
R477
R479
R480
R502
R510
R511
R504
R505
R519
R520
R560
R524
R525
R508
R514
R561
R609
R610
R611
R612
R613
R614
R615
R616
R617
R618
R620
R622
R623
R624
R637
R654
R655
R657
R658
R659
R660
R664
R668
R669
R672
R675
R676
R678
R701
R705
R709
R710
R711
R713
R717
R718
R719
R732
R735
R744 R745
R765
U410
U501 U502
U506 U507
Q401
Q702
U406
U703
U402
U404
U411
U412
D601
Q404
Q601
Q603
Q703
Q502
Q503
Q701
U407
Q403
U601
CN116
CN501
CN502
L401
L701
C702
C141
U113
SH2
C192
C191
C749
L705
L704
U709
Q704
U707
C748
FB405
R101
R1112
R154
R736
R738
R741
R750
R753
R774
R775
R776
U702
R111
R116
R513
CN701
C468
C469
C471
C472
L402
R485
R486
U413
C449
C682
C683
L703
C686
FB704
FB705
C408
Q504
Q506
C509
C510
C511
R506
R507
R509
C455
C705
FB406
FB706
L601
L602
L603
L604
CN602
C194
C730
FB407
R1031
U405
C719
FB408
R406
U414
C662
C663
C609
R410
R449
R450
R706
GND1
GND2
GND3
GND4
U401
FB409
FB410
R1
M6
M7
R625
R626
ME3
ME4
M5
FB102
CN408
14. MAIN UNIT Side A
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