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40
Troubleshooting
This chapter describes important instructions for trouble-
shooting. Please observe all instructions to avoid risks and
damage.
Safety Precautions
WARNING:
Please observe the following safety instructions to avoid
risks and damage:
Electrical repairs must only be executed by special-
ized staff being trained by the manufacturer. Improper
repairs can cause significant danger for the user and
damage to the unit.
Troubleshooting
Problem
Possible cause
Unit cannot be
The car ignition
turned on.
switch is not on.
No sound
The volume is set
to minimum.
Wiring is improper. Check the wiring.
Disc cannot be
Presence of disc
loaded or is
inside the player.
ejected.
Disc inserted in
reverse direction.
The disc is
extremely dirty or
defective.
CD format is not
supported.
Mistake with home-
burnt CD.
Temperature inside
the car is too high.
Condensation on
the laser.
CD skips.
Installation angle
over 30°.
CD dirty or
damaged.
Problem
The operation
keys do not
work.
The radio does
not work or no
auto scan.
Station
memory does
not work.
Solution
If the power supply is
properly connected
USB device
to the car accessory
does not work.
terminal, switch the
ignition key to "ACC".
Increase the volume.
Remove the disc in the
player, and then load a
new one.
SD/MMC
memory card
Insert the compact
does not work.
disc with the label
facing up.
Clean the disc or try to
No connection
play a new one.
can be made
via Bluetooth.
Insert a different CD.
No audio
signal with
Check your CD in a
a Bluetooth
different player.
connection.
Cool off or wait
until the ambient
temperature returns to
normal.
Turn the unit off
for several hours
until the moisture is
evaporated.
Decrease installation
angle to less than 30°.
Clean the CD or play
different CD.
Possible cause
Solution
The built-in
Press RESET (29).
microcomputer
is not operating
properly due to
noise.
The front panel
Check that the control
is not correctly
panel is attached
installed.
securely.
The antenna cable
Insert the antenna
is not connected
cable firmly
The signals are too
Select a station
weak.
manually.
Terminal 4 of
Check the cabling.
ISO connector
Observe chapter
A (continuous
"Connections".
positive) not
properly
connected.
The USB port is
Connect a USB-
only for proper
conform device.
USB devices.
Ensure the media is
Not all available
formatted in FAT32
devices comply
format.
with the standards.
Possibly a non-
standard device is
connected.
The unit cannot
Check the card. Insert
read the card.
it with the text side
face up. Ensure the
media is formatted in
FAT32 format.
Bluetooth is
Activate Bluetooth on
switched off on
your mobile phone.
your mobile phone.
Car radio is not
Check whether there
registered with the
is a connection. If
audio source.
necessary, re-register
the car radio with the
audio source.
Volume is too low. Increase the volume
on the car radio.
Increase the volume
on the audio source.
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