LG 55LM9600 Service Manual page 89

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