20
ENGLISH
20
INFORMATION
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Troubleshooting
If a fault occurs, first refer to this information
before you take the device for repair.
If you are unable to rectify the fault using the
information given here, contact your specialist
dealer.
Never under any circumstances attempt to
repair the device yourself, as this invalidates the
guarantee.
Fault
The device cannot be switched
on
Display error
Poor radio reception
Frequent temporary loss of
radio reception
Not all loudspeakers work
CD player does not work
Tracks skip
CD sound interference
occurring
Rear speakers switch off
After every switching on with
the ignition the code must be
entered
The device switches off after 1
hour
Possible cause
Control unit not properly attached
On/Off button pressed too briefly
Contacts dirty. Control unit installed
incorrectly
You are in an area with poor reception
conditions
AF function is working in an area with poor
reception
Incorrect BALANCE and FADER settings,
faulty connection
The device is not installed correctly
The CD is dirty
CD-R/RW media with copy-protected tracks
being played
Device too hot (over 70°C)
Operating voltage (A7) and ignition (A4) are
inverted
Pin A4 not connected.
Remedy
Attach the control unit again
Hold down the On/Off button longer
Clean the contacts with a lint-free cloth.
Wait until conditions improve
Deactivate AF function
Check settings and change if necessary
Fasten the device
Clean the CD with a soft lint-free cloth -
do not use cleaning solutions
Change the CD
Turn down the volume
Check the sockets (page 17)
Connect A7 and A4 correctly
(page 17)
