Epson EMP-8000 - Audio Out Troubleshooting

EMP-9000/8000
4-10Revision:A SEIKO EPSON
Audio out
Figure4-8
Start
Does A / V devices are
checked?
Connect the audio cable to
the Audio In L/R interface.
Connect the audio cable to
the Audio In interface.
YES
YES
YES
YES
YESYES
Does volume control works?
Replace AU board.
Does internal speaker R/L
output the sound?
Connect the external speaker
to the Audio out.
Does external speaker output
the sound?
Replace AU board.
Replace AU board.
Replace MA board.
Does volume control works?
Replace MA board.
Does Mute button works?
Does Mute button works?
Re-connect the CN201/202
on the AU board.
Does internal speaker R/L
output the sound?
Replace speaker R/L.
Does internal speaker R/L
output the sound?
Replace AU board.
Does internal speaker R/L
output the sound?
Replace MA board.
YES
NO
NO
NO
NO
NO
NO
NO
YES
NO
YES
NO
YES
NO
A
A
Go to Operator panel.