LG 42LV355B / 42LV355C (CHASSIS:LA0AC) Service Manual ▷ View online
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
0.1uF
C1453
10uF
10V
C1452
USB1_OCD
SIDE_USB_DP
22uF
16V
16V
C1451
1/8W
2K
1%
1%
R1459
+5V_USB
USB1_CTL
1/8W
2K
1%
1%
R1458
4.7K
OPT
R1455
SIDE_USB_DM
MLB-201209-0120P-N2
120-ohm
L1451
a_BEAD_MAG
10K
R1454
+3.3V_Normal
47
R1451
CIS21J121
L1451-*1
BEAD_SS
M
AE
RT
S
N
W
O
D
BS
U
)
G
L(
-
C
Z-
5
0
3-
S
4
0
U
A
3
JK1450
a_USB_JACK
1
2
3
4
5
AP2191DSG
EAN61849601
IC1450
3
IN_2
2
IN_1
4
EN
1
GND
5
FLG
6
OUT_1
7
OUT_2
8
NC
U
SB
D
O
W
N
S
TR
EA
M
3A
U
04
S
-3
45
-Z
C
-H
-L
G
JK1450-*1
USB_JACK_LV3400
1
2
3
4
5
RCLAMP0502BA
D1451
OPT
S
IG
N
64
09
$0.077
USB_DIODES
20101023
GP2R
USB_OCP_DIODE
7
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
HDMI_CEC
D2+_HDMI1
DDC_SDA_4
0.1uF
C806
DDC_SDA_1
DDC_SDA_4
2SC3052
Q802
E
B
C
68K
R853
D1+_HDMI4
DDC_SCL_4
5V_DET_HDMI_1
GND
ENKMC2838-T112
D824
A
1
C
A
2
+5V_Normal
5V_DET_HDMI_4
D1-_HDMI1
5V_HDMI_4
10K
R862
10K
R830
CEC_REMOTE_S7
DDC_SCL_1
+3.5V_ST
2SC3052
Q803
E
B
C
10
K
R
87
4
A
V
R
L
16
1A
1R
1N
T
D
82
6
OPT
D0-_HDMI1
JP805
+5V_Normal
0.1uF
16V
C803
D1+_HDMI1
CK+_HDMI1
D2-_HDMI4
EDID_WP
D2-_HDMI1
D
81
1
O
PT
0
OPT
R855
D1-_HDMI4
5V_HDMI_4
+3.3V_Normal
CEC_ON/OFF
AT24C02BN-SH-T
IC801
HDMI_1_ATMEL
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
10K
R856
22
R882
0.1uF
16V
C802
1.8K
R837
20
33
20
95
G
A
E
JK802
14
13
5
D1_GND
20
SHIELD
12
11
2
D2_GND
19
18
10
CK+
4
D1+
1
D2+
17
9
D0-
8
D0_GND
3
D2-
16
7
D0+
6
D1-
15
22
R881
D
80
2
O
PT
GND
BSS83
Q805
S B D
G
CEC_REMOTE_NEC
DDC_SCL_4
GND
HDMI_CEC
CK+_HDMI4
JP806
68K
R854
22
R875
3
.3
K
R
83
5
HPD1
HPD4
D0+_HDMI1
HDMI_CEC
1.8K
R804
1K
R897
0.1uF
16V
C810
D0+_HDMI4
A
V
R
L
16
1A
1R
1N
T
OPT
D
80
3
5V_HDMI_1
BSS83
Q806
S B D
G
22
R876
0.1uF
16V
C805
DDC_SDA_1
10K
R893
AT24C02BN-SH-T
IC804
HDMI_SIDE_ATMEL
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
GND
CK-_HDMI1
EDID_WP
ENKMC2838-T112
D821
A
1
C
A
2
D0-_HDMI4
1K
R896
D2+_HDMI4
3
.3
K
R
80
2
DDC_SCL_1
0
OPT
R883
10
K
R
87
1
0.1uF
C809
68K
OPT
R857
5V_HDMI_1
68K
R892
CK-_HDMI4
E
A
G
62
61
12
01
JK803
14
13
5
D1_GND
20
BODY_SHIELD
12
11
2
D2_GND
19
18
10
CK+
4
D1+
1
D2+
17
9
D0-
8
D0_GND
3
D2-
16
7
D0+
6
D1-
15
0
R824
0
R841
JP812
R1EX24002ASAS0A
IC801-*1
a_HDMI_1_RENESAS
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
R1EX24002ASAS0A
IC804-*1
a_HDMI_SIDE_RENESAS
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
2.7K
R888
2.7K
R884
2.7K
R887
2.7K
R891
D
80
4
D
82
5
For CEC
HDMI EEPROM
HDMI_1
$0.055
SIDE_HDMI
$0.055
20101023
GP2R
HDMI
8
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
100pF
50V
C1121
DSUB_G+
30V
D1113
DSUB_R+
30V
D1111
5.6V
OPT
D1114
470K
R1103
PC_L_IN
002:S12
68pF
50V
OPT
C1122
100pF
50V
C1107
DSUB_DET
30V
D1112
10K
R1142
100pF
50V
C1108
RGB_DDC_SCL
DSUB_VSYNC
RGB_DDC_SDA
18pF
50V
C1128
22
R1143
75
R1133
0.1uF
16V
C1131
ENKMC2838-T112
D1115
A1
C
A2
10K
R1110
10K
R1111
5.6V
OPT
D1116
10K
R1146
470K
R1102
+3.3V_Normal
+5V_Normal
S
P
G
09
-D
B
-0
10
JK
1
1
0
4
1
R
ED
2
G
R
EE
N
3
B
LU
E
4
G
N
D
_1
5
D
D
C
_G
N
D
6
R
ED
_G
N
D
7
G
R
EE
N
_G
N
D
8
B
LU
E_
G
N
D
9
N
C
1
0
SY
N
C
_G
N
D
1
1
G
N
D
_2
1
2
D
D
C
_D
A
TA
1
3
H
_S
Y
N
C
1
4
V
_S
Y
N
C
1
5
D
D
C
_C
LO
C
K
1
6
SH
IL
E
D
15K
R1107
F
ib
e
r
O
p
ti
c
JS
T
1
2
2
3
-0
0
1
JK
1
1
0
3
1
GND
2
VCC
3
VINPUT
4
F
IX
_P
O
L
E
+3.3V_Normal
75
R1135
68pF
50V
OPT
C1126
SPDIF_OUT
002:T18
30V
D1109
0.1uF
16V
C1129
PC_R_IN
002:S12
75
R1137
AMOTECH
5.6V
OPT
D1101
EDID_WP
1K
R1147
AT24C02BN-SH-T
IC1105
RGB_EEMPROM_ATMEL
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
30V
D1110
18pF
50V
C1127
DSUB_HSYNC
DSUB_B+
PEJ027-01
JK1102
6B T_TERMINAL2
7B B_TERMINAL2
5 T_SPRING
4 R_SPRING
7A B_TERMINAL1
6A T_TERMINAL1
3 E_SPRING
AMOTECH
5.6V
OPT
D1102
5.6V
D1117
OPT
15K
R1108
22
R1141
R1EX24002ASAS0A
IC1105-*1
a_RGB_EEMPROM_RENESAS
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
2.2K
R1139
2.2K
R1140
+3.3V_Normal
100pF
50V
C9906
SIDEAV_R_IN 002:S13
ADMC5M03200L_AMODIODE
5.6V
D9904
SIDEAV_CVBS_IN002:D6
BLM18PG121SN1D
L9903
BLM18PG121SN1D
L9901
1K
R9915
10K
R9913
SIDEAV_L_IN 002:S13
100pF
C9907
470K
R9905
ADMC5M03200L_AMODIODE
5.6V
D9903
12K
R9916
470K
R9906
KJA-PH-1-0177
JK9901
3
M3_DETECT
4
M4
5
M5_GND
1
M1
6
M6
ADUC30S03010L_AMODIODE
30V
D9901
10K
R9914
BLM18PG121SN1D
L9902
ADMC5M03200L_AMODIODE
5.6V
D9902
75
R9907
100pF
C9901
10K
R9911
12K
R9917
SIDEAV_DET
001:AJ27
100pF
50V
C9905
S
IG
N
30
00
06
S
IG
N
30
00
05
SIGN300004
S
IG
N
30
00
01
S
IG
N
30
00
02
SIGN300003
5 . 1 5 M s t a r C i r c u i t A p p l i c a t i o n
SPDIF OPTIC JACK
RGB/SPDIF/PC
PC AUDIO
RGB PC
20101023
GP2R
RGB/SPDIF/HP
9
(New Item Development)
SIDE CVBS PHONE JACK
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
100
R1124
SPG09-DB-009
JK1101
1
2
3
4
5
6
7
8
9
10
JP1121
EAN41348201
MAX3232CDR
IC1101
3
C1-
2
V+
4
C2+
1
C1+
6
V-
5
C2-
7
DOUT2
8
RIN2
9
ROUT2
10
DIN2
11
DIN1
12
ROUT1
13
RIN1
14
DOUT1
15
GND
16
VCC
S7_NEC_TXD
CDS3C30GTH
30V
D1108
OPT
0.1uF
C1102
JP1122
0.1uF
C1106
S7_NEC_RXD
0.1uF
C1103
0.33uF
C1101
0.1uF
C1104
+3.5V_ST
CDS3C30GTH
30V
D1107
OPT
100
R1123
0.1uF
C1105
100
R10067
IR_OUT
RS232C
20101023
GP2R
RS232C_9PIN
10
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