LG 50LN54 Series Service Manual page 23

IR/LED and Control
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
CONTROL_NO_FILTER
R603 R611
R602
0
10K 10K
1% 1%
CONTROL_FILTER
L601
R600
BLM18PG121SN1D
100
KEY1
CONTROL_FILTER
L602
R601 BLM18PG121SN1D
100
KEY2
CONTROL_NO_FILTER
R612
0
+3.5V_ST
R607
3.3K
IR
CONTROL_FILTER
C608
0.1uF
16V
CONTROL_FILTER
C609
0.1uF
16V
+3.5V_ST
L600
BLM18PG121SN1D
R610
1.8K
C602 C603 LED_R/BUZZ
0.1uF 1000pF
16V 50V
OPT
C607
0.1uF
16V
C604
100pF
50V
P600
12507WR-08L
1
2
3
4
5
6
7
8
9
NC4_S7LRM
IR/CONTROL
2012/07/18
6
LGE Internal Use Only