JVC KD-AVX1 Manuel D'instructions page 46

Indications
IF Filter
Intermediate frequency
filter
DAB AF*
1
Alternative frequency
reception
Announce
*
1
Announcement
Standby Reception
EXT INPUT*
2
External input
Beep
Rear SPK*
3
Rear speaker output
Telephone
Telephone muting
* 1 Displayed only when DAB tuner is connected.
* 2 Cannot be selected if the source is "CD-CH" or "EXT-IN".
* 3 Functions only when Dual Zone is activated (see page 40).
46
Selectable settings, [reference page]
In some areas, adjacent stations may interfere with each other. If this
interference occurs, noise may be heard.
Auto: [Initial]; When this type of interference occurs, this
unit automatically increases the tuner selectivity so that
interference noise will be reduced. (But the stereo effect will
also be degraded.)
Wide: Subject to the interference from adjacent stations, but sound
quality will not be degraded and the stereo effect will not be
degraded.
On:
[Initial]; Traces the programme among DAB services and
FM RDS stations, [58].
Off: Cancels.
Select one of the 9 announcement types for Announcement Standby
Reception.
Travel [Initial] O Warning O News O Weather O Event O
Special O Rad Inf (Radio Information) O Sports O Finance O
(back to the beginning)
CHANGER: [Initial]; To use a JVC CD changer, [50].
EXT IN: To use any external component, [53].
You can deactivate the key-touch tone if you do not want it to beep
each time you press a button.
On:
[Initial]; Activates the key-touch tone.
Off:
Cancels.
On:
[Initial]; Select this to turn on the rear speaker output.
Off: Cancels.
Muting1/Muting2: Select either one which mutes the sounds while
using the cellular phone.
Off:
[Initial]; Cancels.