LG 55X6500-TD Service Manual page 104

Standard Repair Process Detail Technical Manual
symptom
LCD TV
Content
IOP 47"/Edge LED 55"
Edge LED 42/47"
Copyright © 2010 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Error
B. Power error _No power
Checking method when power is ON
IOP 55"
Established
date
Revised
date
Check "power on" pin is high
Pin layout (24P)
Power
1 2
on
3 24V 4
5 GND 6
7 GND 8
9 3.5V 10
11 3.5V 12
13 GND 14
15 GND 16
17 12V 18
19 12V 20
21 12V 22
23 NC 24
A19
24V
(IOP & Edge 55")
20V ( )
Edge 42/47
24V
GND
GND
3.5V
3.5V
GND
NC
Inverter ON
LE : NC
IOP : PWM Dim #1
LE : PWM Dim #1
IOP : NC
Error-out
A19
LGE Internal Use Only