Established
date
Standard Repair Process Detail Technical Manual
Revised
A18
Error
symptom
Content
Check power input voltage and ST BY 3 5V
B. Power error _No power
LCD TV
2013.01.31
date
A18
Content
Check power input voltage and ST-BY 3.5V
Check the DC 24V 12V 3 5V
Check the DC 24V, 12V, 3.5V.
18 Pin
(Power Board ↔ Main Board)
1
Power on
2
DRV ON
3
3.5V
4
20V
5
3 5V
6
N C
5
3.5V
6
N.C
7
GND
8
GND
9
24V
10
24V
11
GND
12
GND
11
GND
12
GND
13
12V
14
12V
15
12V
16
24V
17
GND
18
GND
17
GND
18
GND
A18
Copyright ⓒ 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Summary of Contents for 55EA8800
Page 51: ......
Page 56: ...H13 Block diagram ...
Page 62: ...Interconnection 1 55EA9800 PCBs 1 Main PCB 2 PSU 1 2 3 WIFI ASSY ...
Page 90: ...Appendix Exchange the Module 1 수직 비내림 Line Dim Brightness difference ...
Page 91: ...Appendix Exchange the Module 2 Angle view Color difference Brightness dot noise Half dead ...