LG 32LV355T Service Manual page 68

Standard Repair Process Detail Technical Manual
Error
symptom
LCD TV
Content
Edge LED PSU without LED Driver
Lamp PSU without inverter
Copyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
A. Video error_No video/Normal audio
LED driver/lamp inverter B+ 24V measuring method
Check the DC 24V, 12V, 3.5V and Inverter on
A2
Established
2011. 2 .07
date
Revised
date
* 26" ~ 47" : `11 Pin map
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)
A2
LGE Internal Use Only