37
XG-C55X
TROUBLE SHOOTING TABLE (Continued)
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Checking the video system
Is the lamp on ?
Is specified voltage EA
connectors?
Is the video signal inputted into the
pin (23) of P3102?
Is the signal outputted from the pin
(7) of IC4502?
Is the signal outputted from the pin
(5) of IC4505?
Is the signal inputted into pin (72)
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 IC4505 and its peripheral
circuits.
Check Q4501 and its peripheral
circuits.
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