Sharp XG-C55X Service Manual page 40

XG-C55X
TROUBLE SHOOTING TABLE (Continued)
Checking the RGB Sync.
Are the sync inputted into pins(2)
and (4) of SC3102?
Yes
Are their signal inputted into pins(2)
and (12) of IC2404?
Yes
Are their signal inputted into
pins(63) and (66) of P8002?
Yes
Go to "Checking the PC I/F unit".
No
Check IC3152, IC3153, IC3154,
IC3151 and their peripheral circuits.
No
Check P3102 and its peripheral
circuits.
No
Check IC2404 and its peripheral
circuits.
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