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