42SL90-UA (CHASSIS:LA92S) - LG TV Service Manual (repair manual). Page 17

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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.
SL90(US)
09/08/24
IN/OUT
1    10
D111
30V
OPT
ADUC30S03010L
D123
5.6V
ADMC5M03200L_AMODIODE
OPT
R110
470K
AV_L_IN
D131
5.6V
ADMC5M03200L_AMODIODE
OPT
D100
5.6V
DSUB_VSYNC
006:C28
COMP1_L_IN
006:R32
R157
0
R163
4.7K
DBG_TX
D125
30V
ADUC30S03010L_AMODIODE 
R174
12K
D129
ENKMC2838-T112
A1
C
A2
JK104
JST1223-001
1
GND
2
VCC
3
VINPUT
4
FIX_POLE
D109
30V
R133
3.3K
R117
100
OPT
C134
0.1uF
50V
C126
100pF
50V
C125
68pF
50V
OPT
R126
12K
C100
0.33uF
C128
0.1uF
50V
OPT
R109
470K
IC100
MAX3232CDR
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
R134
220
R181
0
OPT
R159
75
R179
0
OPT
R162
0
OPT
PC_R_IN
006:R31
D130
5.6V
ADMC5M03200L_AMODIODE
OPT
R108
75
1%
DSUB_B
006:C28
D122
30V
ADUC30S03010L_AMODIODE 
D106
5.6V
C102
0.1uF
C124
OPT
R116
0
D128
30V
ADUC30S03010L_AMODIODE 
C133
0.1uF
16V
R112
75
+5V_ST
R158
0
R156
4.7K
COMP1_Y
006:C30
COMP1_DET
006:AR22
C107
100pF
50V
DSUB_DET
Q101
2SC3052
E
B
C
C114
47pF
50V
R123
10K
C127
100pF
50V
L101
BG2012B080TF
AV_CVBS_DET
006:AR23
DSUB_G
006:C28
D105
5.6V
COMP1_PR
006:C30
R105
10K
C113
220pF
50V
DBG_RX
D102
5.6V
R168
10K
R131
100K
SPDIF_OUT
006:V29
+5V_GENERAL
R161
75
+5V_ST
ISP_RXD
006:AB27
AV_CVBS_IN
006:C25
ISP_TXD
006:AB27;006:AS31
C132
100pF
50V
R169
10K
R129
10K
OPT
R177
0
COMP1_PB
006:C30
R176
0
R135
220
C108
100pF
50V
R183
1K
R103
4.7K
+5V_ST
+3.3V
C123
OPT
ZD100
OPT
R120
10K
C103
0.1uF
C105
100pF
50V
OPT
R164
470K
C110
1000pF
50V
+3.3V
L102
BLM18PG121SN1D
D101
5.6V
+3.3V_ST
COMP1_R_IN
006:R32
R118
100
OPT
C111
1000pF
50V
C122
OPT
C112
220pF
50V
+3.3V
R178
22
D104
5.6V
R165
470K
IR
R127
12K
R113
75
AV_R_IN
D127
30V
ADUC30S03010L_AMODIODE 
C130
18pF
50V
PC_L_IN
006:R31
D107
30V
R173
12K
R119
10K
R102
10K
Q100
2SC3052
OPT
E
B
C
C131
18pF
50V
R115
0
DSUB_HSYNC
006:C29
R125
12K
C101
0.1uF
R166
22
1/10W
1%
D124
5.6V
ADMC5M03200L_AMODIODE
OPT
C115
47pF
50V
R175
0
R171
1K
OPT
R114
1K
R160
75
D132
5.6V
ADMC5M03200L_AMODIODE
R130
3.3K
OPT
R124
12K
R128
0
DSUB_R
006:C28
R132
100K
C104
0.1uF
C129
68pF
50V
OPT
R167
4.7K
D103
30V
+5V_GENERAL
+3.3V
R122
10K
R121
1K
D126
30V
ADUC30S03010L_AMODIODE 
R106
470K
L100
BG2012B080TF
D108
30V
R104
4.7K
R170
22
C109
47pF
50V
R111
75
D110
30V
OPT
ADUC30S03010L
C106
0.1uF
16V
R180
100
VGA_EEPROM_WP
006:AR22
R107
470K
R100
100
IC102
AT24C02BN-10SU-1.8
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
R182
10K
R172
10K
R101
100
R140
470K
C120
1000pF
50V
C121
1000pF
50V
R153
10K
R150
1K
R142
75
D116
5.6V
COMP2_PB
006:C27
COMP2_R_IN
006:R31
COMP2_DET
006:AR22
R152
10K
D117
5.6V
R144
75
R155
12K
R141
470K
D120
30V
R143
75
COMP2_L_IN
006:R31
COMP2_PR
006:C27
D119
30V
R154
12K
COMP2_Y
006:C27
+3.3V
D121
30V
D118
5.6V
R139
10K
JK105
SPG09-DB-010
1
RED
2
GREEN
3
BLUE
4
GND_1
5
DDC_GND
6
RED_GND
7
GREEN_GND
8
BLUE_GND
9
NC
10
SYNC_GND
11
GND_2
12
DDC_DATA
13
H_SYNC
14
V_SYNC
15
DDC_CLOCK
16
SHILED
JK106
SPG09-DB-009
1
2
3
4
5
6
7
8
9
10
JK100
PPJ231-01
8
[YL]V_IN
6
[YL]GND
7
[YL]AV_DET
5
[WH]L_IN
4
[RD]R_IN
IC101
NL17SZ00DFT2G
3
GND
2
B
4
Y
1
A
5
VCC
JK101
PPJ-230-01
9
[GN]G
10
[GN]GND
8
[GN]C_DET
7
[BL]B
6
[RD]R
5
[WH]L_IN
4
[RD]R_IN
11
FIX-TER
13
[RD]MONO
JK102
PPJ-230-01
9
[GN]G
10
[GN]GND
8
[GN]C_DET
7
[BL]B
6
[RD]R
5
[WH]L_IN
4
[RD]R_IN
11
FIX-TER
13
[RD]MONO
JK103
PEJ027-01
6B
T_TERMINAL2
8
SHIELD_PLATE
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
RxD
male
RS-232C
SPDIF OPTIC JACK
COMPONENT1/2
AV
PC AUDIO
Need to pull up 3.3V
RGB PC
TxD
Serial Port
Display
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