TROUBLSHOOTING GUIDDE
Is there color signal
at pins 83 and 84 of
IC803 ?
Check IC803 and
peripheral circuit.
Change MAIN PCB.
Yes
No
ON SCREEN DISPLAY DOES
NOT APPEAR
THE SCREEN HAS A VERTICAL
LINE OR A HORIZONTAL LINE.
Change IC803.
No
Yes
Change V2301.
Is there a normal
waveform at pins 118,
119 and 122 of IC803?
E-4