B. Power error
No power
Standard Repair Process
Established
date
Revised date
6/16
LCD TV
Error
symptom
2013.01.31
No power
DC Power on
N
R l
☞
A17
☞
A18
Revised date
6/16
Power LED
On?
Y
N
DC Power on
by pressing Power Key
On Remote control
Y
N
Normal
operation?
Check Power
On ‘”High”
Check Power cord
Check
Logo LED
Replace
Power
B/D
Y
OK?
Replace Main B/D
. Stand-By: Red or Turn Off
. Operating: Turn Off
Check Power cord
was inserted properly
Measure voltage of each output of Power B/D
Replace Main B/D
N
Normal?
☞
A18
Y
Normal
voltage?
Replace Main B/D
Y
Y
※
N
g
Check ST-BY 3.5V
Replace Power B/D
N
Y
Normal
voltage?
☞
A18
Close
Replace Power
B/D
6
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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 ...