Copyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
Standard Repair Process Detail Technical Manual
LED driver/lamp inverter B+ 24V measuring method
A. Video error_No video/Normal audio
A2
Established
date
Revised
date
Error
symptom
Content
LCD TV
A2
Check the DC 24V, 12V, 3.5V and Inverter on
Edge LED PSU without LED Driver
Lamp (Power Board ↔ Inverter)
- PSU
14 Pin
1 ~ 5 24V
6 ~ 10 GND
11 Detect
12 Inverter On/Off
13 Int. PWM
14 Ext. PWM (PDIM)
* 26” ~ 47” : `11 Pin map
Lamp PSU without inverter
2011. 2 .07
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