Read LG 32LD540 / 32LD540 / 32LD541 / 32LD570 / 32LD575 (CHASSIS:LD01B) Service Manual online
1
1
2
2
3
3
4
4
5
5
6
6
A
A
B
B
C
C
D
D
All location are from F231 to F370
+7.150V
+7.68V
+8.100V
VGH = 28.500V
VDD_LCM= +16V
VCC_LCM = +3.3V
R17=R16(VGH/1.25-1)
HVDD
R3
TCON_SEL2
R4
L
L
LED37"
TCON_SEL1
LED42", LCD42"
[Voltage Target]
H
H
VGH
VGL
+27.00V
-5.000V
L
H
+25.5V
-7.200V
+28.00V
H
L
+28.00V
-5.000V
R3 = R4(VDD_LCM/1.25 - 1)
POWER BLOCK
-5.000V
+16.00V
+15.00V
VDD_LCM
+15.50V
+16.25V
+8.000V
LED32", LCD32"
LED47"
32/42LD540-ZC, 32/42LD541-ZC
VGH_FB
VGL_FB
REF
REF
EN2
EN2
REF
VGH_FB
EN2
VGH_FB
VGL_FB
EN2
SEL2
SEL1
VGL_FB
LCM_REF
SEL2
SEL1
SEL1
LCM_REF
REF
VDD_LCM
MODULE_POWER
VGH
MODULE_POWER
VCC_LCM
VGL
VCC_LCM
VDD_LCM
MODULE_POWER
MODULE_POWER
MODULE_POWER
3V3_FRC
MODULE_POWER
TCON_SEL2
[11]
TCON_SEL1
[11]
DPM
[24]
HVDD_REF
[25]
D791
BAS316
BAS316
D791
BAS316
BAS316
1
2
C172
106p/25V/3216
C172
106p/25V/3216
C100
105p/25V
C100
105p/25V
R250
362/F/1005
R250
362/F/1005
U794
MAX17113
MAX17113
U794
MAX17113
MAX17113
FBN
14
AGND
13
THR
1
CPGND
10
FBP
9
DLP
8
CLK
11
DRVN
12
DRVP
2
GND2
3
SRC
4
DRN
6
MODE
7
OUT
21
LX2_2
20
LX2_1
19
BST
18
FB2
17
DEL1
16
REF
15
IN2_1
22
IN2_2
23
VIN
24
FSEL
25
EN1
26
DEL2
27
VL
28
PGND
30
EN2
29
PGND
31
LX1_1
32
LX1_2
33
SW
I
34
SW
O
35
FB1
36
COMP
37
PGOOD
38
CRST
39
AGND
40
EP
41
GON
5
R200
512/F/1005
512/F/1005
R200
512/F/1005
512/F/1005
R269
103/1005
103/1005
R269
103/1005
103/1005
R296
103/1005
103/1005
R296
103/1005
103/1005
C98
OPEN-473p/2012
C98
OPEN-473p/2012
R293
104/F/1005
R293
104/F/1005
R209
100/2012
R209
100/2012
C168
10uF/50V/MVK/S
C168
10uF/50V/MVK/S
C96
474p/50V/3216
C96
474p/50V/3216
C196
104p/16V/1005
C196
104p/16V/1005
R171
100/1005
100/1005
R171
100/1005
100/1005
U796
CD4052BM96
CD4052BM96
U796
CD4052BM96
CD4052BM96
Y0B
1
VEE
7
Y1A
14
YIB
5
VSS
8
Y0A
12
Y2A
15
Y3A
11
ZA
13
VDD
16
ZB
3
E#
6
Y2B
2
Y3B
4
A1
9
A0
10
C132
OPEN-102p/50V/1005
OPEN-102p/50V/1005
C132
OPEN-102p/50V/1005
OPEN-102p/50V/1005
R323
000/1005
R323
000/1005
D797
SX34
D797
SX34
R292
154/F/1005
R292
154/F/1005
C176
105p/6.3V/1005
105p/6.3V/1005
C176
105p/6.3V/1005
105p/6.3V/1005
R270
103/1005
103/1005
R270
103/1005
103/1005
R256
203/F/1005
R256
203/F/1005
Q791
MMBT4401
MMBT4401
Q791
MMBT4401
MMBT4401
1
2
3
R315
911/F/1005
R315
911/F/1005
R249
513/F/1005
513/F/1005
R249
513/F/1005
513/F/1005
R253
102/1005
102/1005
R253
102/1005
102/1005
D794
KDS226
KDS226
D794
KDS226
KDS226
2
3
1
R178
102/F/1005
R178
102/F/1005
R202
183
R202
183
R251
000/1005
000/1005
R251
000/1005
000/1005
TP458
PCB_TP08
TP458
PCB_TP08
1
D795
KDS226
KDS226
D795
KDS226
KDS226
2
3
1
R257
363/F/1005
R257
363/F/1005
C145
105p/50V/3216
C145
105p/50V/3216
R318
681/F/1005
R318
681/F/1005
C118
105p/16V/1005
C118
105p/16V/1005
C173
105p/25V
C173
105p/25V
C180
151p/50V/1005
C180
151p/50V/1005
R263
OPEN-202/1005
R263
OPEN-202/1005
R264
OPEN-102/1005
OPEN-102/1005
R264
OPEN-102/1005
OPEN-102/1005
C193
105p/25V
C193
105p/25V
L791
SPC10040-220M
SPC10040-220M
L791
SPC10040-220M
SPC10040-220M
C165
104p/16V/1005
C165
104p/16V/1005
R331
154/F/1005
R331
154/F/1005
R255
513/F/1005
513/F/1005
R255
513/F/1005
513/F/1005
R288
1131/F/1005
R288
1131/F/1005
R170
100/1005
100/1005
R170
100/1005
100/1005
R210
103/1005
103/1005
R210
103/1005
103/1005
R201
183
R201
183
C169
106p/16V/2012
C169
106p/16V/2012
C179
106p/16V/2012
C179
106p/16V/2012
R284
000/1005
R284
000/1005
R322
2431/F/1005
R322
2431/F/1005
R287
362/F/1005
R287
362/F/1005
R290
1303/F/1005
R290
1303/F/1005
R291
163/F/1005
R291
163/F/1005
R268
103/1005
103/1005
R268
103/1005
103/1005
C122
104p/16V/1005
104p/16V/1005
C122
104p/16V/1005
104p/16V/1005
C124
104p/16V/1005
C124
104p/16V/1005
R248
214/F/1005
214/F/1005
R248
214/F/1005
214/F/1005
C178
105p/50V/3216
C178
105p/50V/3216
C170
226P/6.3V/2012
C170
226P/6.3V/2012
R289
132/F/1005
R289
132/F/1005
C123
105p/16V/1005
C123
105p/16V/1005
L792
SPC7040-100M
SPC7040-100M
L792
SPC7040-100M
SPC7040-100M
R317
821/F/1005
R317
821/F/1005
R258
203/F/1005
203/F/1005
R258
203/F/1005
203/F/1005
C120
OPEN-104p/16V/1005
C120
OPEN-104p/16V/1005
C130
102p/50V/1005
102p/50V/1005
C130
102p/50V/1005
102p/50V/1005
R321
202/F/1005
R321
202/F/1005
D796
SX34
SX34
D796
SX34
SX34
C128
105p/50V/3216
C128
105p/50V/3216
R286
202/F/1005
R286
202/F/1005
R218
103/1005
R218
103/1005
R260
2R2/1005
2R2/1005
R260
2R2/1005
2R2/1005
R217
000/1005
R217
000/1005
U795
CD4052BM96
CD4052BM96
U795
CD4052BM96
CD4052BM96
Y0B
1
VEE
7
Y1A
14
YIB
5
VSS
8
Y0A
12
Y2A
15
Y3A
11
ZA
13
VDD
16
ZB
3
E#
6
Y2B
2
Y3B
4
A1
9
A0
10
C175
105p/16V/1005
C175
105p/16V/1005
D793
BAS316
BAS316
D793
BAS316
BAS316
1
2
R259
OPEN-000/1005
OPEN-000/1005
R259
OPEN-000/1005
OPEN-000/1005
R229
2493/F/1005
2493/F/1005
R229
2493/F/1005
2493/F/1005
R254
123/F/1005
123/F/1005
R254
123/F/1005
123/F/1005
C151
106p/16V/2012
C151
106p/16V/2012
R203
103
R203
103
C174
105p/25V
C174
105p/25V
R319
2431/F/1005
R319
2431/F/1005
D792
SX34
D792
SX34
Q792
MMBT4401
MMBT4401
Q792
MMBT4401
MMBT4401
1
2
3
C206
OPEN-105p/25V
C206
OPEN-105p/25V
C177
106p/10V/2012
C177
106p/10V/2012
RT1
NCP18WB473F10RB
RT1
NCP18WB473F10RB
R320
6041/F/1005
R320
6041/F/1005
R324
000/1005
R324
000/1005
C197
47uF/35V/SMD/BXE 6.3P
C197
47uF/35V/SMD/BXE 6.3P
R316
272/F/1005
R316
272/F/1005
R252
OPEN-000/1005
R252
OPEN-000/1005
C129
104p/16V/1005
C129
104p/16V/1005
C198
47uF/35V/SMD/BXE 6.3P
47uF/35V/SMD/BXE 6.3P
C198
47uF/35V/SMD/BXE 6.3P
47uF/35V/SMD/BXE 6.3P
C166
105p/25V
C166
105p/25V
C121
102p/50V/1005
102p/50V/1005
C121
102p/50V/1005
102p/50V/1005
R179
103/F/1005
103/F/1005
R179
103/F/1005
103/F/1005
Q793
MMBT4401
Q793
MMBT4401
1
2
3
C160
104p/50V
C160
104p/50V
R267
103/1005
103/1005
R267
103/1005
103/1005
C194
104p/16V/1005
C194
104p/16V/1005
C97
OPEN-105p/25V/2012
C97
OPEN-105p/25V/2012
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
All location are from 1121 to 1150
CVBS_INPUT(Rear)
Component_INPUT(Rear)
CVBS_INPUT(Side)
32/42LD540-ZC, 32/42LD541-ZC
COMP_LI
COMP_RI
D3V3_BCM3556
D3V3_BCM3556
D3V3_BCM3556
AV_CVBS [7]
CVBS_LI [8]
CVBS_RI [8]
AV_CVBS_LINK
[11]
REAR_CVBS
[7]
REAR_CVBS_LINK
[11]
REAR_CVBS_LI
[8]
REAR_CVBS_RI
[8]
COMP_LI [8]
COMP_RI [8]
COMP_Y [7]
COMP_Pb [7]
COMP_Pr [7]
COMP_LINK [11]
RV1121
SV060305E101N
SV060305E101N
RV1121
SV060305E101N
SV060305E101N
C1123
OPEN-104p/16V/1005
OPEN-104p/16V/1005
C1123
OPEN-104p/16V/1005
OPEN-104p/16V/1005
C1128
OPEN-102p/50V/1005
C1128
OPEN-102p/50V/1005
RV1124
SV060305E101N
SV060305E101N
RV1124
SV060305E101N
SV060305E101N
C1122
104p/16V/1005
104p/16V/1005
C1122
104p/16V/1005
104p/16V/1005
Z1121
ZMMC5V6
ZMMC5V6
Z1121
ZMMC5V6
ZMMC5V6
1
2
Y
Pb
Pr
AL
AR
Support
Hole
Hole
JP1121
PPJ234-01
PPJ234-01
Y
Pb
Pr
AL
AR
Support
Hole
Hole
JP1121
PPJ234-01
PPJ234-01
1
2
3
2
3
4
5
6
7
8
9
10
10
12
11
13
C1124
102p/50V/1005
102p/50V/1005
C1124
102p/50V/1005
102p/50V/1005
R1126
474/1005
474/1005
R1126
474/1005
474/1005
L1095
CIL21J1R8KNE
CIL21J1R8KNE
L1095
CIL21J1R8KNE
CIL21J1R8KNE
L1100
OPEN-CIL21J1R8KNE
OPEN-CIL21J1R8KNE
L1100
OPEN-CIL21J1R8KNE
OPEN-CIL21J1R8KNE
RV1126
SV060314B431N
SV060314B431N
RV1126
SV060314B431N
SV060314B431N
R1122
102/1005
R1122
102/1005
R1128
474/1005
474/1005
R1128
474/1005
474/1005
CVBS
AL
AR
Support
Hole
Hole
JP1123
OPEN-PPJ233-01
OPEN-PPJ233-01
CVBS
AL
AR
Support
Hole
Hole
JP1123
OPEN-PPJ233-01
OPEN-PPJ233-01
1
2
3
2
3
4
5
6
7
6
7
8
9
9
L1099
OPEN-CIL21J1R8KNE
OPEN-CIL21J1R8KNE
L1099
OPEN-CIL21J1R8KNE
OPEN-CIL21J1R8KNE
L1097
CIL21J1R8KNE
CIL21J1R8KNE
L1097
CIL21J1R8KNE
CIL21J1R8KNE
RV1129
OPEN-SV060305E101N
OPEN-SV060305E101N
RV1129
OPEN-SV060305E101N
OPEN-SV060305E101N
R1123
472/1005
472/1005
R1123
472/1005
472/1005
RV1123
SV060314B431N
SV060314B431N
RV1123
SV060314B431N
SV060314B431N
R1127
474/1005
474/1005
R1127
474/1005
474/1005
R1125
474/1005
474/1005
R1125
474/1005
474/1005
C1132
OPEN-102p/50V/1005
OPEN-102p/50V/1005
C1132
OPEN-102p/50V/1005
OPEN-102p/50V/1005
RV1127
SV060314B431N
SV060314B431N
RV1127
SV060314B431N
SV060314B431N
C1131
OPEN-102p/50V/1005
OPEN-102p/50V/1005
C1131
OPEN-102p/50V/1005
OPEN-102p/50V/1005
RV1125
SV060314B431N
SV060314B431N
RV1125
SV060314B431N
SV060314B431N
R1121
472/1005
472/1005
R1121
472/1005
472/1005
R1134
OPEN-474/1005
OPEN-474/1005
R1134
OPEN-474/1005
OPEN-474/1005
RV1122
SV060305E101N
SV060305E101N
RV1122
SV060305E101N
SV060305E101N
C1127
102p/50V/1005
102p/50V/1005
C1127
102p/50V/1005
102p/50V/1005
R1124
102/1005
R1124
102/1005
R1131
OPEN-472/1005
OPEN-472/1005
R1131
OPEN-472/1005
OPEN-472/1005
R1132
OPEN-102/1005
R1132
OPEN-102/1005
Z1122
ZMMC5V6
ZMMC5V6
Z1122
ZMMC5V6
ZMMC5V6
1
2
L1098
CIL21J1R8KNE
CIL21J1R8KNE
L1098
CIL21J1R8KNE
CIL21J1R8KNE
C1130
OPEN-102p/50V/1005
C1130
OPEN-102p/50V/1005
RV1128
OPEN-SV060314B431N
OPEN-SV060314B431N
RV1128
OPEN-SV060314B431N
OPEN-SV060314B431N
R1133
OPEN-474/1005
OPEN-474/1005
R1133
OPEN-474/1005
OPEN-474/1005
C1121
104p/16V/1005
104p/16V/1005
C1121
104p/16V/1005
104p/16V/1005
CVBS
AL
AR
Support
Hole
Hole
JP1122
PPJ235-01
PPJ235-01
CVBS
AL
AR
Support
Hole
Hole
JP1122
PPJ235-01
PPJ235-01
1
2
3
2
3
4
5
6
7
6
7
8
9
9
L1096
CIL21J1R8KNE
CIL21J1R8KNE
L1096
CIL21J1R8KNE
CIL21J1R8KNE
RV1130
OPEN-SV060314B431N
OPEN-SV060314B431N
RV1130
OPEN-SV060314B431N
OPEN-SV060314B431N
Click on the first or last page to see other 32LD540 / 32LD540 / 32LD541 / 32LD570 / 32LD575 (CHASSIS:LD01B) service manuals if exist.