LG 32LW5700 Manual page 69

Standard Repair Process Detail Technical Manual
LCD TV
ALEF LED
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
Established
date
Revised
date
Check the DC 24V, 12V, 3.5V.
(Power Board ↔ Main Board) -
24 Pin
SMAW200-H24S (YEONHO)
1 Power on
3 20V (24V)
GND
5
7 GND
9 3.5V
11 3.5V
13 GND
15 GND
17 12V
19 12V
21 12V
23 N.C
• Lamp SCANNING Model
: PWM Dim #2
A4-2
2011.01.20
A4
공통
2 20V (24V)
4 20V (24V)
GND
6
8 GND
10 3.5V
12 3.5V
14 GND
16 GND
18 Inverter On/off
20 Lamp : A-Dim
LED : N.C
22 PWM Dim #1
24 Error-out
LGE Internal Use Only