Copyright©2007 LG Electronics. Inc. All right reserved.
-24-
LGE Internal Use Only
Only for training and service purposes
1. No Screen(1)
Symptom
Front LED is on as green color, but no picture.
Check Flow
TROUBLE SHOOTING
Check LVDS Cable?
Is the LVDS cable connected well?
Reset Cable
Replace LVDS Cable
Check Power On signal?
Is the Power On Signal correct?
Check Key Pad/IR Input
Check Power Supply
Is LCD V24V/+12V
normal?
Check Power Supply
Video Normal on Analog RF?
Check TUNER
Video normal on Video3?
Check HC4051
Video normal on DIGITAL RF?
Check TUNER
Video normal on
AutoCamport/AV2
Check RJP Mode
Check HC4051
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO