LG 55G2 - A. Video error_No video; Audio

Standard Repair Process Detail Technical Manual
Power Board voltage measuring method
A. Video error_No video/ Audio
A4
Established
date
Revised
date
Error
symptom
Content
LCD TV
A4
Check the DC 24V, 12V, 3.5V.
2011. 12 .14
24 Pin (Power Board ↔ Main Board) - 공통
SMAW200-H24S (YEONHO)
1
Power on
2
24V
3
24V
4
24V
5
GND
6
GND
7
GND
8
GND
9
3.5V
10
3.5V
11
3.5V
12
3.5V
13 GND 14
GND
15 GND 16
V-sync
17 12V 18
DRV_ON
19 12V 20
N.C
21 12V 22
PWM Dim #1
23 PWM Dim #2 24 Error-out
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