Trouble Shooting - LG 26LH1DC1-UB Service Manual

1. No Screen(1)
Symptom
Front LED is on as green color, but no picture.
Check Flow
Check LVDS Cable?
Check Power On signal?
Is LCD Voltage +24V/+12V
Video Normal on Analog RF?
Video normal on Video3?
Video normal on DIGITAL RF?
AutoCamport/AV2
Check RJP Mode
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Only for training and service purposes

TROUBLE SHOOTING

NO
YES
NO
YES
NO
normal?
YES
NO
YES
NO
YES
NO
YES
NO
Video normal on
YES
Is the LVDS cable connected well?
YES
Replace LVDS Cable
Is the Power On Signal correct?
YES
Check Power Supply
Check Power Supply
Check TUNER
Check HC4051
Check TUNER
Check HC4051
-24-
NO
Reset Cable
NO
Check Key Pad/IR Input
LGE Internal Use Only