LG 32CM540-CA / 42CM540-CA / 47CM540-CA Service Manual ▷ View online
1
1
2
2
3
3
4
4
5
5
D
D
C
C
B
B
A
A
EN2
EN1
VGH
GCLK3TC
GCLK1TC
GCLK2TC
GCLK2TC
GCLK4TC
GCLK5TC
GCLK6TC
GCLK5TC
GCLK6TC
VGL
VST_IN
CLK3TC
CLK4TC
CLK4TC
GVSTTC
GVDD_EVENTC
GVDD_ODDTC
EN2
FLKTC
VGL
VGH
VGI_PTC
EN2
EN1
EN2
DISCHG
VGL
VGH
VGL
VGI_NTC
VGH
VGL_ITC
VGL
DISCHG
VDD_ODDTC
VGH
CLK5TC
CLK6TC
CLK6TC
VDD_EVENTC
CLK2TC
VSTTC
DPMTC
RESETTC
CLK1TC
GND
GND
GND_PWR
DPMTC
GCLK3TC
GCLK4TC
GCLK4TC
GCLK2TC
GCLK1TC
GCLK5TC
GCLK6TC
GCLK6TC
VST_IN
GVSTTC
GVDD_EVENTC
GVDD_ODDTC
VDD_ODDTC
VDD_EVENTC
VDD_EVENTC
CLK1TC
CLK5TC
CLK2TC
VSTTC
CLK6TC
CLK3TC
CLK4TC
CLK4TC
FLKTC
VGI_NTC
VGL_ITC
RESETTC
VGI_PTC
PANEL_VDD
PANEL_VDD
PANEL_VDD
PANEL_VDD
16VTC
3V3TC
16VTC
3V3TC
3V3TC
3V3TC
H_VDD
16VTC
16VTC
3V3TC
16VTC
3V3TC
1V8TC
PANEL_VDD
3V3TC
16VTC
1V8TC
H_VDD
H_VDD
13
GND
2,3,4,5,6,7,8,9,10,11,12,
PANEL_VDD
12,13
16VTC
13
3V3TC
13
1V8TC
13
DPMTC
13
GCLK2TC
13
GCLK3TC
13
GCLK4TC
13
GCLK1TC
13
GVSTTC
13
GCLK6TC
13
GCLK5TC
13
GVDD_EVENTC
13
GVDD_ODDTC
13
VST_IN
13
CLK1TC
13
CLK2TC
13
CLK4TC
13
CLK5TC
13
CLK3TC
13
CLK6TC
13
VSTTC
13
VDD_EVENTC
13
VDD_ODDTC
13
FLKTC
13
VGI_NTC
13
VGL_ITC
13
RESETTC
13
VGI_PTC
13
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
DESIGN BY:
SCH FILE :
DATE:
CHECKED BY:
<Doc>
42CM540-CA
14
17
AECN
*.BRD
0.0
PVT
*.DSN
0171-2271-4360
Thursday, November 24, 2011
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
DESIGN BY:
SCH FILE :
DATE:
CHECKED BY:
<Doc>
42CM540-CA
14
17
AECN
*.BRD
0.0
PVT
*.DSN
0171-2271-4360
Thursday, November 24, 2011
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
DESIGN BY:
SCH FILE :
DATE:
CHECKED BY:
<Doc>
42CM540-CA
14
17
AECN
*.BRD
0.0
PVT
*.DSN
0171-2271-4360
Thursday, November 24, 2011
TCON Power
33K_1%
47"
42"
TR76
TR62
150K_1%
47"
42"
TR68
TR109
10R
0R
47"
42"
TR111
30K_1%
148K_1%
39K_1%
38K_1%
TR61
4K7
NC
47"
42"
TR67
TR149
NC
0R
560R
0R
TR112
TR114
0R
0R
0R
10R
20R
20R
290K_1%
11K_1%
15K_1%
TR123
TR127
220K_1%
POWER/GND
TR71
220K_1%
180K_1%
TR72
150K_1%
160K_1%
47"
42"
TR117
NC
47K_1%
150K_1%
47"
42"
140K_1%
TR133
82K_1%
12K_1%
TR116
47"
42"
H_VDD
42" 8V
47" 7.9V
42" 8V
47" 7.9V
VGH
42" 27.69V
47" 26.4V
42" 27.69V
47" 26.4V
VGL
42" -5.3V
47" -5.0V
42" -5.3V
47" -5.0V
VDD
42" 16.4V
47" 15.8V
42" 16.4V
47" 15.8V
TC66
10uF/25V
10uF/25V
1206C
TC66
10uF/25V
10uF/25V
1206C
TC
115
115
0.
1uF/
25V
0603C
TC
115
115
0.
1uF/
25V
0603C
TC102
4.7uF/50V
1206C
TC102
4.7uF/50V
1206C
TR60
100
100
0402R
TR60
100
100
0402R
TR139
NC_0
NC_0
0402R
TR139
NC_0
NC_0
0402R
TR144
NC_0
NC_0
0402R
TR144
NC_0
NC_0
0402R
TR79
0
0402R
TR79
0
0402R
TD7
BAV99
BAV99
TD7
BAV99
BAV99
1
2
3
TR136
3K6
3K6
0402R
TR136
3K6
3K6
0402R
+
TCE2
220uF/25V
220uF/25V
ECD8
+
TCE2
220uF/25V
220uF/25V
ECD8
TC117
150pF/50V
150pF/50V
0402C
TC117
150pF/50V
150pF/50V
0402C
TR91
0
0402R
TR91
0
0402R
TR135
470_F
470_F
0603R
TR135
470_F
470_F
0603R
TC67
NC_1500pF/50V
NC_1500pF/50V
0402C
TC67
NC_1500pF/50V
NC_1500pF/50V
0402C
TR115
9K1
9K1
1206R
TR115
9K1
9K1
1206R
TR88
2R2
2R2
0402R
TR88
2R2
2R2
0402R
TR143
NC_360
NC_360
0402R
TR143
NC_360
NC_360
0402R
TR70
3K
0402R
TR70
3K
0402R
TR64
9K1_F
9K1_F
0402R
TR64
9K1_F
9K1_F
0402R
TR111
10
0603R
TR111
10
0603R
TR61
4K7
4K7
0402R
TR61
4K7
4K7
0402R
TR81
0
0402R
TR81
0
0402R
TC110
NC_150pF/50V
0402C
TC110
NC_150pF/50V
0402C
TC76
1uF/25V
1uF/25V
0603C
TC76
1uF/25V
1uF/25V
0603C
TC121
10uF/10V
10uF/10V
0805C
TC121
10uF/10V
10uF/10V
0805C
TR83
10K
10K
0402R
TR83
10K
10K
0402R
TR76
33K_F
33K_F
0402R
TR76
33K_F
33K_F
0402R
TC79
NC_0.1uF/16V
NC_0.1uF/16V
0402C
TC79
NC_0.1uF/16V
NC_0.1uF/16V
0402C
TC93
1500pF/50V
0402C
TC93
1500pF/50V
0402C
TC70
10uF/25V
1206C
TC70
10uF/25V
1206C
TC81
1uF/25V
1uF/25V
0603C
TC81
1uF/25V
1uF/25V
0603C
TD9
B340A-13-F
B340A-13-F
TD9
B340A-13-F
B340A-13-F
TR130
1K_F
1K_F
0603R
TR130
1K_F
1K_F
0603R
TC
116
116
0.
1uF/
25V
0603C
TC
116
116
0.
1uF/
25V
0603C
TC75
0.1uF/25V
0.1uF/25V
0603C
TC75
0.1uF/25V
0.1uF/25V
0603C
TC126
2200pF/50V
2200pF/50V
0402C
TC126
2200pF/50V
2200pF/50V
0402C
TC129
10uF/25V
1206C
TC129
10uF/25V
1206C
TC100
0.1uF/25V
0.1uF/25V
0603C
TC100
0.1uF/25V
0.1uF/25V
0603C
TR78
0
0402R
TR78
0
0402R
TR112
20
0603R
TR112
20
0603R
TR131
NC_0
0402R
TR131
NC_0
0402R
TR62
150K_F
150K_F
0402R
TR62
150K_F
150K_F
0402R
+
TCE5
100uF/25V
100uF/25V
ECD6
+
TCE5
100uF/25V
100uF/25V
ECD6
TR84
0
0402R
TR84
0
0402R
TC96
10uF/25V
10uF/25V
1206C
TC96
10uF/25V
10uF/25V
1206C
TR108
10
0402R
TR108
10
0402R
TR113
NC_10
0603R
TR113
NC_10
0603R
TR137
360
360
0402R
TR137
360
360
0402R
TR93
0
0402R
TR93
0
0402R
+
TCE3
220uF/25V
220uF/25V
ECD8
+
TCE3
220uF/25V
220uF/25V
ECD8
TR145
0
0
0402R
TR145
0
0
0402R
TD4
NC_MMSZ5237B-7-F
TD4
NC_MMSZ5237B-7-F
TR77
18K_F
18K_F
0402R
TR77
18K_F
18K_F
0402R
TC65
10uF/25V
10uF/25V
1206C
TC65
10uF/25V
10uF/25V
1206C
TR128
5K1
5K1
0402R
TR128
5K1
5K1
0402R
TC85
0.1uF/16V
0.1uF/16V
TC85
0.1uF/16V
0.1uF/16V
TC98
150pF/50V
150pF/50V
0402C
TC98
150pF/50V
150pF/50V
0402C
TR110
0
0
0402R
TR110
0
0
0402R
TC92
2200pF/50V
2200pF/50V
0402C
TC92
2200pF/50V
2200pF/50V
0402C
TR120
NC_0
NC_0
0402R
TR120
NC_0
NC_0
0402R
TR149
560
0402R
TR149
560
0402R
TR134
0
0
0805R
TR134
0
0
0805R
TC78
10uF/25V
10uF/25V
1206C
TC78
10uF/25V
10uF/25V
1206C
TC90
10uF/25V
10uF/25V
1206C
TC90
10uF/25V
10uF/25V
1206C
TC120
10uF/25V
10uF/25V
1206C
TC120
10uF/25V
10uF/25V
1206C
TR126 NC_1K
0402R
TR126 NC_1K
0402R
TC103
1uF/50V
1206C
TC103
1uF/50V
1206C
TC91
NC_4700pF/50V
NC_4700pF/50V
0402C
TC91
NC_4700pF/50V
NC_4700pF/50V
0402C
TC77
1uF/25V
1uF/25V
0603C
TC77
1uF/25V
1uF/25V
0603C
+
TCE1
NC_47uF/25V
NC_47uF/25V
ECD5
+
TCE1
NC_47uF/25V
NC_47uF/25V
ECD5
TC112
1uF/25V
1uF/25V
0603C
TC112
1uF/25V
1uF/25V
0603C
TC125
10uF/25V
10uF/25V
1206C
TC125
10uF/25V
10uF/25V
1206C
TR146
NC_0
NC_0
0402R
TR146
NC_0
NC_0
0402R
TR67
NC_0
0402R
TR67
NC_0
0402R
TR132 27K_F
0402R
TR132 27K_F
0402R
TD5
NC_MMSZ5237B-7-F
TD5
NC_MMSZ5237B-7-F
O
TU7
MAX17113ETL+
MAX17113ETL+
O
TU7
MAX17113ETL+
MAX17113ETL+
THR
1
DRVP
2
GND2
3
SRC
4
GON
5
DRN
6
MODE
7
DLP
8
FBP
9
CPGND
10
CTL
11
DRVN
12
AGND
13
FBN
14
REF
15
DEL1
16
FB2
17
BST
18
LX2
19
LX2
20
OUT
21
IN2
22
IN2
23
VIN
24
FSEL
25
EN1
26
DEL2
27
VL
28
EN2
29
PGND
30
PGND
31
LX1
32
LX1
33
SWI
34
SWO
35
FB1
36
COMP
37
PGOOD
38
CRST
39
AGND
40
EP
41
TR63
NC_18K_F
NC_18K_F
0402R
TR63
NC_18K_F
NC_18K_F
0402R
TR114
20
0603R
TR114
20
0603R
TR127 11K
0402R
TR127 11K
0402R
TC106
1uF/50V
1uF/50V
1206C
TC106
1uF/50V
1uF/50V
1206C
TC84
15nF/50V
15nF/50V
0402C
TC84
15nF/50V
15nF/50V
0402C
TR121 10
0402R
TR121 10
0402R
TC89
10uF/25V
10uF/25V
1206C
TC89
10uF/25V
10uF/25V
1206C
TC82
10uF/25V
10uF/25V
1206C
TC82
10uF/25V
10uF/25V
1206C
TC97
1uF/25V
1uF/25V
0603C
TC97
1uF/25V
1uF/25V
0603C
TC94
10uF/25V
1206C
TC94
10uF/25V
1206C
TC87
1500pF/50V
1500pF/50V
0402C
TC87
1500pF/50V
1500pF/50V
0402C
TC73
NC_1500pF/50V
NC_1500pF/50V
0402C
TC73
NC_1500pF/50V
NC_1500pF/50V
0402C
TD2
B340A-13-F
B340A-13-F
TD2
B340A-13-F
B340A-13-F
TC68
1uF/25V
0603C
TC68
1uF/25V
0603C
TR142
1K
1K
0402R
TR142
1K
1K
0402R
TR125
1K
1K
0402R
TR125
1K
1K
0402R
TR122
0
0402R
TR122
0
0402R
TR74
10K
10K
0402R
TR74
10K
10K
0402R
TD1
BAV99
BAV99
TD1
BAV99
BAV99
1
2
3
TC104
1uF/50V
1206C
TC104
1uF/50V
1206C
TR73
15K
15K
0402R
TR73
15K
15K
0402R
TR124
0
0402R
TR124
0
0402R
TR129
0
0402R
TR129
0
0402R
TL2
22uH/1.7A
22uH/1.7A
TL2
22uH/1.7A
22uH/1.7A
1
2
TL3
22uH/1.7A
22uH/1.7A
TL3
22uH/1.7A
22uH/1.7A
1
2
TR65
3K
3K
0402R
TR65
3K
3K
0402R
TL1
22uH/1.7A
22uH/1.7A
TL1
22uH/1.7A
22uH/1.7A
1
2
TC113
10uF/25V
10uF/25V
1206C
TC113
10uF/25V
10uF/25V
1206C
TC118
NC_1uF/25V
NC_1uF/25V
0603C
TC118
NC_1uF/25V
NC_1uF/25V
0603C
TR66
47K
47K
0402R
TR66
47K
47K
0402R
TC72
0.01uF/25V
0.01uF/25V
0402C
TC72
0.01uF/25V
0.01uF/25V
0402C
SOT223
ADJ
IN
OUT
ADJ/FIX
TU8
AP1117EL-13
AP1117EL-13
SOT223
ADJ
IN
OUT
ADJ/FIX
TU8
AP1117EL-13
AP1117EL-13
2
3
1
4
TC71
NC_0.1uF/16V
NC_0.1uF/16V
0402C
TC71
NC_0.1uF/16V
NC_0.1uF/16V
0402C
TR104
10
0402R
TR104
10
0402R
TR119
0
0
0402R
TR119
0
0
0402R
TR117
NC_47K_F
NC_47K_F
0402R
TR117
NC_47K_F
NC_47K_F
0402R
TC114
0.47uF/25V
0.47uF/25V
0603C
TC114
0.47uF/25V
0.47uF/25V
0603C
TC107
1uF/50V
1uF/50V
1206C
TC107
1uF/50V
1uF/50V
1206C
TR138
0
0
0402R
TR138
0
0
0402R
TC101
NC_1uF/25V
NC_1uF/25V
0603C
TC101
NC_1uF/25V
NC_1uF/25V
0603C
TC109
1uF/25V
1uF/25V
0603C
TC109
1uF/25V
1uF/25V
0603C
TC108
1uF/25V
1uF/25V
0603C
TC108
1uF/25V
1uF/25V
0603C
TR141
0
0
0402R
TR141
0
0
0402R
TR68
39K_F
39K_F
0402R
TR68
39K_F
39K_F
0402R
TC86
0.1uF/25V
0603C
TC86
0.1uF/25V
0603C
TD3
BAV99
BAV99
TD3
BAV99
BAV99
1
2
3
TR140
0
0
0402R
TR140
0
0
0402R
TC80
1uF/25V
0603C
TC80
1uF/25V
0603C
TR118
0
0
0402R
TR118
0
0
0402R
TC105
NC_1uF/25V
NC_1uF/25V
0603C
TC105
NC_1uF/25V
NC_1uF/25V
0603C
+
TCE4
220uF/25V
220uF/25V
ECD8
+
TCE4
220uF/25V
220uF/25V
ECD8
TC127
2200pF/50V
0402C
TC127
2200pF/50V
0402C
TR69
18K_F
18K_F
0402R
TR69
18K_F
18K_F
0402R
TC99
2200pF/50V
0402C
TC99
2200pF/50V
0402C
TC111
0.1uF/25V
0603C
TC111
0.1uF/25V
0603C
TR109
10
0603R
TR109
10
0603R
TU6
MAX17119ETI+
TU6
MAX17119ETI+
A9
1
A8
2
A7
3
A6
4
A5
5
A4
6
A3
7
A2
8
A1
9
GON1
10
GOFF
11
GON2
12
Y1
13
Y2
14
Y3
15
Y4
16
Y5
17
Y6
18
Y7
19
Y8
20
Y9
21
Discharge
22
GND
23
RE
24
VSENSE
28
FLK2
26
FLK3
25
FLK1
27
EP
29
TR89
0
0402R
TR89
0
0402R
TC123
1uF/25V
1uF/25V
0603C
TC123
1uF/25V
1uF/25V
0603C
TC128
10uF/25V
1206C
TC128
10uF/25V
1206C
TR133 150K_F
0402R
TR133 150K_F
0402R
TR72
150K_F
150K_F
0402R
TR72
150K_F
150K_F
0402R
TC124
0.22uF/25V
0.22uF/25V
0603C
TC124
0.22uF/25V
0.22uF/25V
0603C
TC74
0.1uF/25V
0.1uF/25V
0603C
TC74
0.1uF/25V
0.1uF/25V
0603C
TR116
12K_F
12K_F
0402R
TR116
12K_F
12K_F
0402R
TC122
10uF/10V
10uF/10V
0805C
TC122
10uF/10V
10uF/10V
0805C
TD6
NC_BAV99
NC_BAV99
TD6
NC_BAV99
NC_BAV99
1
2
3
TC95
1uF/25V
1uF/25V
0603C
TC95
1uF/25V
1uF/25V
0603C
TR75
5K1
5K1
0402R
TR75
5K1
5K1
0402R
TC119
NC_1uF/25V
NC_1uF/25V
0603C
TC119
NC_1uF/25V
NC_1uF/25V
0603C
TU5
RT8250GSP
TU5
RT8250GSP
FB
5
COMP
6
EN
7
BOOT
1
GND
4
SW
3
SS
8
VIN
2
EP
9
TR123
220K
220K
0402R
TR123
220K
220K
0402R
TR71
220K_F
220K_F
0603R
TR71
220K_F
220K_F
0603R
TD8
BAV99
BAV99
TD8
BAV99
BAV99
1
2
3
TC88
1uF/25V
1uF/25V
0603C
TC88
1uF/25V
1uF/25V
0603C
TR80
0
0402R
TR80
0
0402R
TC83
10uF/25V
10uF/25V
1206C
TC83
10uF/25V
10uF/25V
1206C
TR86
0
0402R
TR86
0
0402R
1
1
2
2
3
3
4
4
5
5
D
D
C
C
B
B
A
A
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
DESIGN BY:
SCH FILE :
DATE:
CHECKED BY:
<Doc>
42CM540-CA
15
17
AECN
*.BRD
0.0
PVT
*.DSN
0171-2271-4360
Tuesday, November 22, 2011
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
DESIGN BY:
SCH FILE :
DATE:
CHECKED BY:
<Doc>
42CM540-CA
15
17
AECN
*.BRD
0.0
PVT
*.DSN
0171-2271-4360
Tuesday, November 22, 2011
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
DESIGN BY:
SCH FILE :
DATE:
CHECKED BY:
<Doc>
42CM540-CA
15
17
AECN
*.BRD
0.0
PVT
*.DSN
0171-2271-4360
Tuesday, November 22, 2011
AUDIO INPUT
I2S
TAS5707PHP
L
R
TL2428MC
T- COM OUTPUT
LVDS
RT8250GSP
IR
MST6100VS
VGA
HDMI
TUNER
YPbPr
USB
YPbPr
VGA
F35CT-2-E
VIDEO INPUT
MST6100VS
SW1
SW2
SW3
SW4
SW5
SW6
SW7
AV
S
AV / S
MAX9668
EEPROM
MAX17113EL
MAX17119ETI
TL2428MC
AT24C32
MAX9668
MAX17113EL
MAX17119ETI
RT8250GSP
TU1
TU2
TU5
TU6
TU7
TU3
TU8
U51
TAS5707PHP
U9
AP1117
AP1117
U9
W9751G6JB-25
U6
U7
MX2516406E
U43
74HC4052PW
DRV632PWR
U4
AP1117
U1
AT1529
U3
U2
U2
KIA7805
U53
DRV632
Q3
Q16
Power
MENU
CH+
CH-
VOL+
VOL-
INPUT
F1
F2
5VSB
12V
DDRV_1V8
2V5SW
VDD_1V2
3V3SW
3V3SB
TUNER_5V
PANEL_VDD
5VSW
DDRII
W9751G6JB-25
FLASH
MX25L6406E
220mm
207mm
80mm
AP1117
AP1117
AP1117
F4
PANEL_VDD
1
1
2
2
3
3
4
4
5
5
D
D
C
C
B
B
A
A
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
DESIGN BY:
SCH FILE :
DATE:
CHECKED BY:
<Doc>
42CM540-CA
16
17
AECN
*.BRD
0.0
PVT
*.DSN
0171-2271-4360
Thursday, November 24,
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
DESIGN BY:
SCH FILE :
DATE:
CHECKED BY:
<Doc>
42CM540-CA
16
17
AECN
*.BRD
0.0
PVT
*.DSN
0171-2271-4360
Thursday, November 24,
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
DESIGN BY:
SCH FILE :
DATE:
CHECKED BY:
<Doc>
42CM540-CA
16
17
AECN
*.BRD
0.0
PVT
*.DSN
0171-2271-4360
Thursday, November 24,
125V/5A
FUSE
5VSB
5VSW
AM4835EP
P-MOS
Regulator
Power
Board
Board
12V
5VIN
KIA7805AF
TUNER_5V
AM4835EP
PANEL_VDD
FUSE
3A_32V
125V/3A
FUSE
P-MOS
12VIN
80ohm/4A
AMPVCC
BEAD
AP1117EL
DDRV
Regulator
3V3SB
Regulator
AT1529
VDD_1V2
DC/DC
2V5SW
AP1117EL
Regulator
AP1117EL
Regulator
3V3SW
PANEL_VDD
MAX17113ETL
16VTC
3V3TC
AP1117EL
Regulator
1V8TC
RT8250GSP
H_VDD
T-CON Power
AP1117EL