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27 Troubleshooting
If an error occurs, please consider these instructions before you have the device repaired. If you
are unable to solve a problem despite these instructions, please consult the hotline. Don’t try
repairing the device yourself under any circumstances. In that event the device would lose its
warranty.
Problem Cause Solution
The frame can’t be
slid off the device
towards the rear
The disassembly key was not
inserted correctly.
Reinsert the key. Make sure that the protrusion
on the disassembly key points away from the
device during the insertion.
The connection cables haven’t
been attached correctly.
Please check if all cables have been attached
correctly.
The device does not
play back any music
The “MUTE” or “PAUSE” button
are pressed.
Press the “MUTE” or “PAUSE” button again.
On / off button was pressed too
briefly.
Keep the on / off button pressed longer.
The operating unit isn’t inserted
correctly.
Reinsert the operating unit.
The operational contacts are
soiled.
Clean the operational contacts.
The ignition is turned off. Turn on the ignition.
The connection cables haven’t
been attached correctly.
Please check if all cables have been attached
correctly.
The device can’t be
turned on
The fuse is blown. Replace the fuse.