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No audio output
No audio output
Check whether the audio signal
is right from the U12.44 and
U12.45
Check whether the audio
signal is right from the
U11.7 and U11.1
Check the connection of
the
CON3 on the main board
Check
FB11and FB9 solder is
OK on output board
Yes
Replace
board
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Go
Yes
Yes
6PIN
cable
from
Yes
whether
the
the
output
4-2
No
Check the U12 power supply
Yes
Replace the U12
NO
Check the U12 power supply
(U17.4=-12V and U17.8=12V)
Replace the U17
NO
Connect the 6pin cable to
JP2 properly on output
board
No
solder the FB9 or FB11
properly
Trouble shooting chart
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