Rautz HC-7852UX Service Manual - page 18
Manual is about: Digital Home Cinema System
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Trouble Shooting Guide
1
Yes
Audio Abnormal of Digital
Audio Input Function
USB INPUT
3. AUDIO Abnormal
Check if the
Input Select is
ok?
Check if the
Data interface
is ok?
Replace IC501.
Check USB PCB.
Replace J702.
Check IC501 SPDIF input.
Check pin 98, 99 of IC501.
Replace IC501.
Check if the
data of CN501
is ok?
Check if the
USB input of
IC501 is ok?
No
No
No
No
Yes
Yes
Yes