Normal
audio
Y
N
Move to No
video/No audio
No video
Normal audio
Check Back Light
On with naked eye
On
Y
N
Check Power
Board
12v,5v etc.
Normal
voltage
Y
N
Replace Main Board
Replace T-con
Board or module
OR
Repair Power
Board or parts
Check Power Board 24v output
Normal
voltage
N
Repair Power
Board or parts
End
Always check/record S/W Version and White
Balance value before replacing the Main /Digital
Board
Replace Main Board
Re-enter White Balance value
※
Precaution
Established
date
Electronics 6-3
Standard Repair Process
Revised date
2008. 2 . 1
1/13
LCD TV
Error
symptom
A. Video error
No video/Normal audio
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Copyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
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Summary of Contents for 47LV370S-ZB
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