Read LG 55LEX8-ZA (CHASSIS:LD03S) Service Manual 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.
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.
3.9K
R4130
5.6V
OPT
OPT
D4107
SC1_B
SC1_L_IN
SCART1_MUTE
4700pF
50V
50V
C4107
10K
R4126
0 . 1 u F
C4130
5.6V
OPT
D4102
+12V
5.1V
OPT
D4104
47pF
50V
50V
C4113
5.6K
R4147
62
R4115
33pF
C4127
0
R4116
0
R4123
NLASB3157DFT2G
IC4101
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
10K
R4156
30V
OPT
D4106
SCART1_Lout_N
470
R4135
DTV/MNT_V_OUT
SC1_G
SCART1_Rout_P
390
R4133
2SC3052
Q4111
E
B
C
1K
R4155
SCART1_DET
1000pF
50V
50V
C4101
5.6K
R4148
5.6V
OPT
OPT
D4100
75
1%
R4178
180
R4134
0 . 1 u F
16V
C4134
75
R4112
1uF
25V
C4105
5.6V
OPT
D4110
10uF
16V
C4123
DTV_ATV_SELECT
470K
R4100
RT1P141C-T112
Q4109
1
2
3
10K
R4176
100uF
16V
C4114
4.7K
R4152
10uF
16V
C4124
10K
R4163
5.6K
R4143
0
R4138
SC_RE2
SC1_R_IN
002:C6
5.6V
OPT
D4108
DTV/MNT_L_OUT
0 4 1 : F 4 ; 0 4 1 : G 2
12
R4164
2SC3052
Q4107
BLM18PG121SN1D
L4101
SC1_R
0 . 1 u F
16V
16V
C4116
5.6V
OPT
OPT
D4105
0 . 1 u F
16V
16V
C4120
5.6K
R4144
5.1V
D4113
OPT
BLM18PG121SN1D
L4100
2SC3052
Q4106
1uF
25V
C4104
47K
R4136
0 . 1 u F
16V
C4119
LM324D
IC4100
3
IN1+
2
I N 1 -
4
VCC
1
OUT1
6
I N 2 -
5
IN2+
7
OUT2
8
OUT3
9
I N 3 -
10
IN3+
11
VEE/GND
12
IN4+
13
I N 4 -
14
OUT4
75
1%
1%
R4102
33pF
C4128
0 . 1 u F
16V
C4118
0
R4160
2SC3052
Q4105
E
B
C
75
1%
1%
R4111
+12V
100pF
50V
50V
C4112
DTV/MNT_R_OUT
0 4 1 : F 3 ; 0 4 1 : G 2
30V
OPT
D4111
0
R4131
OPT
L4105
+12V
22
R4122
75
1%
R4104
DTV/MNT_R_OUT
SCART1_Rout_N
1K
R4129
1K
R4146
30V
D4112
47uF
16V
16V
C4117
SC1_FB
REC_8
15K
R4127
1K
R4154
75
1%
R4101
5.6V
OPT
D4103
0
R4157
1000pF
50V
50V
C4100
+3.3V_NORMAL
DTV/MNT_L_OUT
10K
R4177
1K
R4145
2K
1/16W
R4153
2SC3052
Q4108
E
B
C
ISA1530AC1
Q4104
E
B
C
0
R4108
0
R4128
33K
R4150
6800pF
50V
50V
C4125
1/16W
0
5%
R4107
390
R4132
SC1_ID
100pF
50V
50V
C4111
470K
R4103
DTV/MNT_L_OUT
ATV_OUT
220pF
50V
50V
OPT
C4115
1/16W
0
5%
R4105
2SC3052
Q4110
E
B
C
6800pF
50V
C4126
SC1_CVBS_IN
33K
R4149
2K
1/16W
R4151
15K
R4137
SCART1_Lout_P
DTV/MNT_R_OUT
SC_RE1
REC_8
12K
R4159
30V
OPT
D4101
4700pF
50V
50V
C4108
0
R4113
5.6V
OPT
OPT
D4109
+5V_NORMAL
DA1R018H91E
JK3901
1AUDIO_R_OUT
2 AUDIO_R_IN
3
AUDIO_L_OUT
4
AUDIO_GND
5
B_GND
6 AUDIO_L_IN
7 B_OUT
8
ID
9
G_GND
10
G_OUT
11R_GND
12 R_OUT
13
RGB_IO
14
SYNC_GND
15SYNC_OUT
16
SYNC_IN
17
COM_GND
18 AV_DET
19
SHIELD
41
ETC SUB BOARD I/F
Audio Out Amp
Rf
Rg
S e l e c e = L o w = = > A = B 0
Gain=1+Rf/Rg
S e l e c e = H i g h = = > A = B 1
[SCART2 PIN 8]
F o r F r e q u e n c y R e s p o n s e
EU_SCART [OPT]
EU_SCART [OPT]
2 0 0 9 . 0 6 . 1 8
EUROBBTV
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