LG 32LW5700 Manual page 68

Standard Repair Process Detail Technical Manual
LCD TV
Copyright ⓒ 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Error
A. Video error_No video/ Audio
symptom
Content Power Board voltage measuring method
Edge LED 42"/47"
Established
date
Revised
date
Check the DC 20V/24V, 12V, 3.5V.
24pin
Pin layout
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 NC
(Lamp
SCANNING 모델:
PWM Dim #2)
A4-1
2011. 1 .19
2 20V (24V)
4 20V (24V)
6 GND
8 GND
10 3.5V
12 3.5V
14 GND
16 NC
18 Inverter ON
Lamp : A-dim
20
LED : NC
PWM Dim #1
22
24 Error-out
A4
LGE Internal Use Only