EMP-9000/8000
2-22Revision:A SEIKO EPSON
2.7. AU Board Assembly
AU board assembly is mainly consist from amplifier circuit and connectors for speaker. (AU
board assembly is fixed on the upper case unit with screws.)
Figure2-22
• When an external speaker is connected to Audio Out interface or A/V mute switch on the
remote controller is pressed, the power amplifier halts the output.
• Each audio signal is supplied from the audio controller on the IF panel unit to AU board
Assembly.
• The internal dynamic speaker (L/R) is 8
3w.
• The adjustment of the volume etc. is controlled with the audio controller on the IF panel
unit.
Figure2-23 AU board
Connect to Conncter
Board U
CN203
Regurator
+13V
R-IN
L-IN
SMUTE
CN204
Connect to Main
board Assy unit
CN1002
IC201
Pre Amp
Power Amp
CN201
Speaker R
CN202
Speaker LR
L
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