18
Listening to an external device
1.  Set the volume level of the System to 
minimum.
2.  Connect the external device.
Refer also to the instruction manual for the 
external device.
3.  Press AUDIO IN to select ”AUDIO IN.”
4.  Start playback of the external device.
5.  Adjust the volume of the System and of 
the external device.
Adjusting the audio input level
Adjust the audio input level when the volume 
of the external device is too low compared to 
other sources.
When AUDIO IN is selected as the source, 
press SET. 
Each time you press the button, the input level 
changes as follows:
LEVEL1 
\ LEVEL2 \ LEVEL3 \ (back to the 
beginning)
A higher number indicates a greater increase 
in input level.
The initial setting is "LEVEL 3."
Main unit
(Press repeatedly)
Remote control
External device
External 
device(not 
supplied)
Headphone 
jack, etc.
Stereo mini 
plug cord
(not 
supplied)
RV-NB90J.indd18RV-NB90J.indd18 12.3.302:21:39PM12.3.302:21:39PM