English
15
CX305
6. TROUBLESHOOTING
GENERAL
Problem
Cause
Measure
Unit can not power on.
Unit fuse blown.
Replace with new fuse of correct rating.
Car battery fuse blown.
Replace with new fuse of correct rating.
Unit can not power on.
Nothing happens
when buttons are
pressed.
Display is not
accurate.
The microprocessor has
malfunctioned due to noise, etc.
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,
frequencies of radio stations, audio settings, etc.
stored in the memory are cleared.
No/low audio output.
Improper audio output connection. Check wiring and correct.
Volume set too low.
Increase volume level.
Speakers damaged.
Replace speakers.
Heavily biased volume balance.
Adjust the channel balance to center position.
Speaker wiring is in contact with
metal part of car.
Insulate all speaker wiring connections.
Poor sound quality or
distortion.
Non-standard disc used.
Use a standard disc.
Speaker power rating does not
match unit.
Replace speakers.
Wrong connections.
Check wiring and correct.
Speaker is shorted.
Check wiring and correct.
Unit resets itself when
engine is off.
Incorrect connection between ACC
and Battery.
Check wiring and correct.
DISC Player
Problem
Cause
Measure
Disc cannot be
loaded.
Another disc is already loaded.
Eject the disc before loading the new one.
There is a foreign object stuck inside
the unit.
Remove the object inside the unit.
Sound skips or is
noisy.
Compact disc is dirty.
Clean the compact disc with a soft cloth.
Compact disc is heavily scratched
or warped.
Replace with a compact disc with no
scratches.
Sound is bad when
power is first turned
on.
Condensation may form on the internal
lens when the car is parked in a
humid place.
Let dry for about 1 hour with power on.
USB device
Problem
Cause
Measure
USB device cannot
be inserted.
The USB device has been
inserted in the wrong direction.
Try again after reversing the connection direction
of the USB device.
The USB connector is broken.
Replace with a new USB device.
USB device is not
recognized.
The USB device is damaged.
Disconnect the USB device and reconnect. If the
device is still not recognized, try replacing it with a
different USB device.
Connectors are loose.
No sound heard with
the display “
No File
”
shown.
No MP3/WMA file is stored in the
USB device.
Store these files properly in the USB device.
Sound skips or is
noisy.
MP3/WMA files are not encoded
properly.
Use properly encoded MP3/WMA files.
Bluetooth
Problem
Cause
Measure
Cannot pair the
Bluetooth enabled
device with the
audio system.
The device does not support the
profiles required for the system.
Use another device to connect.
The Bluetooth function of the
device is not enabled.
Refer to the user manual of the device for how to
enable the function.
The audio quality
is poor after
connection with a
Bluetooth-enabled
device.
The microphone is not correctly
positioned.
Adjust the position of the microphone.
For example, stick the microphone onto the
dashboard close to the driver.
The Bluetooth reception is poor.
Move the device closer to the audio system or
remove any obstacle between the device and the
system.
CX305 manual_ENG.indd 15
2015-1-30 13:59:34
