LG 42LM6200 Service Manual page 111

Standard Repair Process Detail Technical Manual
symptom
LCD TV
Content
Edge LED
Copyright ⓒ 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Error
A. Video error_No video/ Audio
Power Board voltage measuring method
Established
Revised
Check the DC 24V, 12V, 3.5V.
24 Pin (Power Board ↔ Main Board) -
SMAW200-H24S (YEONHO)
1 Power on
3 24V
5 GND
GND
7
3.5V
9
3.5V
11
13 GND
15 GND
17 12V
19 12V
21 12V
23 GND/P_DIM2
• Lamp SCANNING Model
: PWM Dim #2
65 / 153
2010. 12 .14
date
date
공통
2 24V
4 24V
6 GND
GND
8
3.5V
10
3.5V
12
GND
14
GND
16
18 Inverter On/off
Lamp : A-Dim
20
LED : N.C
22 PWM Dim #1
24 Error-out
A5
LGE Internal Use Only