PG-C45X (serv.man11). Troubleshooting table - Sharp Projector Service Manual (repair manual). Page 5

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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?
Is the video signal inputted into the 
pins (19) and (21) of P3102?
Is the Y-signal outputted from the 
pin (7) of IC4502?
Is the C-signal outputted from the 
emitter of Q4513? 
Is the signal inputted into pins(72) 
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.
Check IC4502 and its peripheral 
circuits.
Check Q4513 and its peripheral 
circuits.
Check Q4502 and its peripheral 
circuits.
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