LG 55LM860V Service Manual page 97

Standard Repair Process Detail Technical Manual
symptom
LCD TV
Content
ALEF LED
Copyright © 2012 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Error
A. Video error_No video/ Audio
Power Board voltage measuring method
Check the DC 24V, 12V, 3.5V.
24 Pin (Power Board ↔ Main Board) -
SMAW200-H24S (YEONHO)
1 Power on
3 20V (24V)
5 GND
7 GND
9 3.5V
11 3.5V
13 GND
15 GND
17 12V
19 12V
21 12V
23 N.C
(only Lamp SCANNING Model
: PWM Dim #2)
A4
Established
2011. 12 .14
date
Revised
date
공통
2 20V (24V)
4 20V (24V)
6 GND
8 GND
10 3.5V
12 3.5V
14 GND
N.C
16
(Only LPB : V-sync)
Inverter On/off
18
N.C
20
(LPB, Lamp : A-dim)
PWM Dim #1
22
24 Error-out
A4
LGE Internal Use Only