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LG 42LN549D Service Manual page 25

Chassis : lb3ax

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I R / L E D a n d c o n t r o l f o r n o r m a l m o d e l s .
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.
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
+3.5V_ST
R606
R608
10K
10K
1%
1%
L602
R602
BLM18PG121SN1D
100
KEY1
L603
R603
BLM18PG121SN1D
100
KEY2
C603
0 . 1 u F
+3.5V_ST
L601
BLM18PG121SN1D
C601
0 . 1 u F
16V
+3.5V_ST
IR_OUT_EU
+3.5V_ST
R605
IR_OUT
IR_OUT
1K
R601
22
R609
IR_OUT
IR_OUT_EU
1K
IR_OUT_EU
R607
C
Q601
10K
B
2SC3052
IR_OUT
E
R610
C
47K
B
IR_OUT
Q602
E
2SC3052
IR_OUT_US
R604
0
IR
OPT
C604
VA602
0 . 1 u F
5.6V
OPT
VA601
5.6V
C602
1000pF
50V
R615
1.5K
LED_R
OPT
OPT
C608
0 . 1 u F
VA603
16V
5.6V
+3.5V_ST
R611
3.3K
OPT
C607
ZD603
100pF
5.48VTO5.76V
50V
IR_8PIN
P601
12507WR-08L
1
2
3
4
5
6
7
8
9
LA2AW
IR/CONTROL
2 0 1 2 . 0 9 . 1 1
6
LGE Internal Use Only

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