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Volume
The volume of the sound output is dependent
on the audio device. If this volume differs mark‐
edly from the volume of the other audio sources,
it is advisable to adjust the volumes.
Adjusting the volume
The volume can only be adjusted if no external
video device is connected.
1. "CD/Multimedia"
2. "External devices"
3. Select the or symbol.
4. "Volume"
5. Turn the controller until the desired volume
is set and press the controller.
What to do if...
Only a black screen is visible.
▷ Switch on the system.
There are no options available on the screen.
▷ Replace remote control batteries.
▷ With Professional rear seat entertainment
toggle between screens if necessary.
Radio stations or TV channels are grayed out
and cannot be selected.
▷ Function is limited due to the selected pri‐
ority. Change priority.
The DVD does not play.
▷ Playback does not begin automatically.
Start DVD manually, refer to page 198.
The volume of the rear vehicle speakers cannot
be adjusted.
▷ Sound in the rear is output via the head‐
phones. Change priority if necessary and
output sound via vehicle speakers.
Seite 222
Entertainment Rear entertainment
222
Online Edition for Part no. 01 40 2 607 855 - 09 11 490
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