Read Sharp PG-C45X (serv.man11) Service Manual online
33
PG-C45X
TROUBLE SHOOTING TABLE (Continued)
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Checking the S-video system
Is the lamp on ?
Is specified voltage EA
connectors?
connectors?
Is the video signal inputted into the
pins (19) and (21) of P3102?
pins (19) and (21) of P3102?
Is the Y-signal outputted from the
pin (7) of IC4502?
pin (7) of IC4502?
Is the C-signal outputted from the
emitter of Q4513?
emitter of Q4513?
Is the signal inputted into pins(72)
and (73) of P8002?
and (73) of P8002?
Go to "Checking the PC I/F unit".
Go to "Lamp fails to light-up".
Check power circuit and its parts.
Check the video terminal and its
peripheral circuits.
peripheral circuits.
Check IC4502 and its peripheral
circuits.
circuits.
Check Q4513 and its peripheral
circuits.
circuits.
Check Q4502 and its peripheral
circuits.
circuits.
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