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Sharp XG-C50X Serviceanleitung Seite 31

Lcd projektor
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TROUBLE SHOOTING TABLE (Continued)
No audio output
Is the audio signal outputted from
the emmitor of Q306?
Yes
Is its signal inputted into pin(2) and
(15) of IC303?
Yes
Is its signal inputted into pin(12)
and (5) or pin(3) and (13) of IC302?
Yes
Is its signal outputted from pin(14)
and (15) or pin(16) and (17) of
P3102?
Yes
Is its signal inputted into pin(14)
and (15) or pin(16) and (17) of
SC102?
Yes
Check the J431, J421 and their
peripheral circuits.
No
Check the P301 and its peripheral
circuits.
No
Check the IC303 and its peripheral
circuits.
No
Check theIC302 and its peripheral
circuits.
No
Check the Q304 and Q305 and its
peripheral circuits.
No
Check the connection between
P3102 and SC3102.
31
XG-C50X
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