Table of Contents
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Check 6
Start
Can this unit select
only RGB 1 or RGB 2
mode ?
No
Is picture displayed
on screen normally when
new video PCB Unit
installed ?
No
Are brightness
and color difference
signals connected to
input terminals
correctly ?
No
Is signal input level
normally ?
No
Check input signal.
∗ SYNC. signals are added to the Y signal.
Component input signals (Y/Pb/Pr) are abnormal.
Power lamp : Lighted green
(10 sec or more)
Yes
Install video PCB
Unit firmly.
Yes
Video PCB Unit
faulty.
Yes
Check connection
cable.
Yes
Signal processing
circuit faulty.
– 16 –
Replace Video PCB
Assy.
Replace Main/Digital
PCB Assy.
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