Sharp LC-20S5E-BK

TROUBLSHOOTING GUIDDE
Is there signal at pins
83 and 84 of IC803?
Is there color signal at
pins 57, 58, 59 and
60 of IC801 ?
Check IC803 and
peripheral circuit.
Check IC801 and peripheral
circuit.
Change MAIN PCB.
Yes
No
Yes
No
ON SCREEN DISPLAY DOES
NOT APPEAR
E-4