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Troubleshooting
No Sound
Refer to Schematic Diagram or Chassis Block Diagram, find out the part of trouble.
In advance check the setting mode according to Instruction Manual.
Yes
All mode?
No
PC1, PC2(AV4)
AV1, AV2
Check the line from
IC1001 in Main Unit
to AV1 or AV2.
No
Is there
(Speaker output
sound signal from
is O.K.)
headphone
Yes
No
Is there
sound signal from
monitor out
Yes
Check around IC1002 in Main Unit. Also check
the line from IC1001 to PC1 or AV4 via IC1002.
-28-
Check around IC031 in Audio Unit.
Check around IC1001 in Audio Unit.
Check the line from monitor out to speaker
via IC002, IC003, IC001, IC121and IC071
in Audio Unit.
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