Sharp XG-PH50X Serviceanleitung Seite 45

Check Audio signal input
of Video.
Go to "Checking the Audio
circuit".
Are there signal at C420
output?
Are there signal at C423
output?
YES
Are there signal at pin(7) of
IC402 and IC404?
YES
Are there signal at C445
output?
Are there signal at C447
output?
YES
CN3001 is not stable or
break-down.
NO
Check C420, C423 and their
peripheral circuits.
NO
Check IC402, IC404 and their
peripheral circuits.
NO
Check C445, C447 and their
peripheral circuits.
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XG-PH50X
XG-PH50X-NL