Hitachi P42A01 - Signal Input

TROUBLESHOOTING GUIDE
Is there signal at pins
14 and 20 of IC100?
Is there signal at pins
C16 and A17 of
IC3901?
Is there signal at pins 6
and 8 of CP2800?
Change IC100.
No
Yes
THE STOP PICTURE
"PLEASE WAIT"
No
No
Yes
Yes
Change IC3901.
Change DIGITAL PCB.
Change SCALER PCB.
E-4