42LH90QR (CHASSIS:LP91C) - LG TV Service Manual (repair manual). Page 21

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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.
SIDE_RIN
SIDE_LIN
5 . 6 B
ZD202
SIDE_V
5 . 6 B
ZD203
CDS3C30GTH
30V
D121
IR_OUT
RXD
ST3232CDR
IC101
3
C1-
2
V+
4
C2+
1
C1+
6
V-
5
C2-
7
T2OUT
8
R2IN
9
R2OUT
10
T2IN
11
T1IN
12
R1OUT
13
R1IN
14
T1OUT
15
GND
16
VCC
TXD
CDS3C30GTH
30V
D122
+3.3V_MST
KCN-DS-1-0088
JK103
1
2
3
4
5
6
7
8
9
10
+3.3V_MST
USB DOWN STREAM
KJA-UB-4-0004
P200
1
2
3
4
5
USB_DP
USB_DN
30V
D205
30V
D206
0.1uF
C109
0.1uF
C107
0.1uF
C108
0.1uF
C205
100
R145
100
R144
4.7K
R206
4.7K
R207
0
R200
0
R201
0
Non_OCP
R202
+5V_USB
500
L200
10uF 6.3V
C201
120OHM OCP
L202
4.7K
OCP
R205
1KOCP
R204
MIC2009YM6-TR 
OCP
IC201
3
ENABLE
2
GND
4 FAULT/
1
VIN
6 VOUT
5 ILIMIT
0.1uF
OCP
C203
10uF
OCP
C204
30V
D208
30V
D207
J P 2 0 1
J P 2 0 0
J P 2 0 2
220uF16V
C200
100uF 16V
C202
KDS226
OCP
D200
A
AC
C
510
OCP
R208
160 OCP
R203
75
R227
220K
R223
220K
R222
10K
R224
10K
R225
12K
R226
12K
R228
P P J 2 1 8 - 0 2
JK201
5C[RD]CONTACT
2C[RD]U_CAN
4C[RD]O_SPRING
2B[WH]U_CAN
3B[WH]C_LUG
2A[YL]U_CAN
5A[YL]CONTACT
4A[YL]O_SPRING
IR_OUT
**1A Design
I t ’ s   p o s s i b e l   t o   2 7 ~ 4 7 o h m
SIDE AV
USB
RS-232C (CI ITEM)
INPUT-RS232/SIDE/USB
H6 LH90
2       1 2
2 0 0 9 / 0 3 / 0 4
EAN43439401
P i n   t o   P i n   w i t h
Close to SIDE_USB
EAX61087201
Mstar LCD LH90
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