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6. TROUBLE SHOOTING
GENERAL
Problem
Cause
Unit fuse blown.
Unit can not
power on.
Car battery fuse blown.
Unit can not
power on.
Nothing happens
The microprocessor has
when buttons are
malfunctioned due to noise, etc.
pressed.
Display is not
accurate.
Improper audio output connection. Check wiring and correct.
Volume set too low.
No/low audio
Speakers damaged.
output.
Heavily biased volume balance.
Speaker wiring is in contact with
metal part of car.
Non-standard disc used.
Speaker power rating does not
Poor sound quality
match unit.
or distortion.
Wrong connections.
Speaker is shorted.
Tel-Mute
MUTE wire is grounded.
malfunction
Unit resets itself
Incorrect connection between ACC
when engine is off.
and Battery.
DISC Player
Problem
Cause
Another disc is already loaded.
Disc cannot be
There is an object installed inside
loaded.
the unit.
Compact disc is dirty.
Sound skips or is
Compact disc is heavily scratched
noisy.
or warped.
Sound is bad when
Condensation may form on the internal
power is first turned
lens when the car is parked in a
on.
humid place.
Measure
Replace with new fuse of correct rating.
Replace with new fuse of correct rating.
Turn off the power and remove the DCP.
Press the [RESET] button with a thin rod.
Note:
When the [RESET] button is pressed, turn off
the ACC power.*
* When the [RESET] button is pressed,
preset radio stations, titles, etc. stored in
memory are kept.
Increase volume level.
Replace speakers.
Adjust the channel balance to center position.
Insulate all speaker wiring connections.
Use a standard disc.
Replace speakers.
Check wiring and correct.
Check wiring and correct.
Check the MUTE wiring and correct.
Check wiring and correct.
Measure
Eject the disc before loading the new one.
Remove the object inside the unit.
Clean the compact disc with a soft cloth.
Replace with a compact disc with no
scratches.
Let dry for about 1 hour with power on.
USB Devices
Problem
Cause
The USB device has been
USB device cannot
inserted with wrong direction.
be inserted.
The USB connector is broken.
The USB device is damaged.
USB device is not
recognized.
Connectors are loose.
No sound heard with
No MP3/WMA file is stored in the
the display "No File"
USB device.
shown.
Sound skips or is
MP3/WMA files are not encoded
noisy.
properly.
Bluetooth
Problem
Cause
Cannot pair the
The device does not support the
Bluetooth enabled
profiles required for the system.
device with the car
The Bluetooth function of the
audio system.
device is not enabled.
The internal microphone gain is
The audio quality
not set correctly.
is poor after
connection with a
The external microphone is
Bluetooth-enabled
not set correctly nor properly
device.
positioned.
7. ERROR DISPLAYS
If an error occurs, one of the following displays is displayed.
Take the measures described below to solve the problem.
Display
Cause
Disc is inserted incorrectly.
ERROR 3
The disc format is not supported.
ERROR 5
This is a failure of deck's mechanism.
If an error display other than the ones described above appears, press the [RESET] button. If
the problem persists, turn off the power and consult your store of purchase.
* When the [RESET] button is pressed, preset radio stations, titles, etc. stored in memory are
kept.
Measure
Reversing the connection direction of the USB
device, try it again.
Replace with a new USB device.
Disconnect the USB device and reconnect. If the
device is still not recognized, try replacing with a
different USB device.
Store these files properly in the USB device.
Use MP3/WMA files encoded properly.
Measure
Use another device to connect.
Refer to the user manual of the device for how to
enable the function.
Adjust the gain of the internal microphone in
System Setup.
Adjust the gain and position of the external
microphone.
For example, stick the microphone onto the
dashboard so it is close to the driver.
Measure
Eject the disc then reload it properly.
Try another disc.
Consult your store of purchase.
CZ302E
10
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