Sharp XG-P25X - Page 37

XG-P25X
39
TROUBLE SHOOTING TABLE (Continued)
No or unusual Y signal
Yes
No
Check IC4502 and its peripheral
circuits.
No
Check IC4501 and its peripheral
circuits.
Yes
No
Check IC4311 and its peripheral
circuits.
Yes
Check SC4303 and its peripheral
circuits.
Is there Y signal output at pin (5) of
IC4311?
Is there Y signal output at pin (7) of
IC4501?
Is there Y signal input at pin (84) of
IC4502?