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Standard Repair Process Detail Technical Manual
symptom
LCD TV
Content
ALEF LED
Copyright © 2012 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Error
A. Video error_No video/Normal audio
LED driver B+ 24V measuring method
Established
Revised
Check the DC 24V and Inverter on
14 Pin
(Power Board ↔ Driver)
1 ~ 5
6 ~ 10
11
12
13
14
A2
2011. 12 .14
date
date
PSU
24V
GND
Detect
Inverter On/Off
Int. PWM
Ext. PWM (PDIM)
A2
LGE Internal Use Only
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