Rautz HC-7852UX, Руководство по обслуживанию

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Trouble Shooting Guide
OK
Yes
Audio Abnormal
of H/P Output
4. AUDIO LINE OUTPUT Abnormal
Check if the
output of IC801
PWM_HP is
ok?
Check if the
output of
IC805 is ok?
Check if the
HP_SENSE is
high?
Check if H/P
Output of Jack
is ok?
Replace IC801.
Check Between IC801 and IC805.
Check J701 and Supplied
Power in the H/P PCB.
Check TR of Mute Circuit.
Check HP_Mute Port of IC201.
No
Yes
No
Yes
No
Yes
No