Yamaha ATS-4080 Owner's Manual page 16

VOLUME (+/-) button
:
Adjust the volume of the unit (p.27).
| (mute) button
A
Mute the audio output (p.27). Press the key
again to unmute.
BASS EXTENSION button
B
Enable/disable the bass extension function
(p.31).
DIMMER button
C
Change the brightness of the indicators
(p.43).
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