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O Troubleshooting Tips
POSSIBLE CAUSE
Dead vehicle battery.
Ignition not on.
Bad power line connection.
Fuse burned out.
PROBLEM
Unit won't turn on.
PROBABLE SOLUTION
Charge vehicle battery.
Turn ignition to On or Accessory.
Check connections.
Replace fuse.
Radio has static.
Radio memory buttons don't work.
No sound can be heard even if
the disc is properly loaded.
Antenna not hooked up.
Hook up antenna.
Close to high power lines.
Move away from high power lines.
Not holding buttons down long
Press and hold buttons for more
enough.
than 2 seconds.
The compact disc is inverted.
Insert the disc with label side
facing up.
The compact disc is very dirty.
Try to clean the compact disc by
instructions of disc cleaning.
The temperature inside the car is | Give the interior a chance to cool
more than 140°F (60°C).
down before using the unit.
Wait for a while before using the
unit.
Wiring connection is not properly
| Confirm all wiring connection such
done.
as power cord, speaker cords,
etc.
Volume control is at "minimum"
Adjust the volume contro! to the
position.
proper level.
Fuse of amplifier is blown out.
Replace the fuse with the correct
rating.
Sound distorted due to vibration.
| Installation method is bad.
Fix the unit securely.
Inverted sound (Left/Right
The speaker cords are inverted.
Check the speaker cords.
connections).
No sound from front or rear
The fader control is set on the
Adjust the fader control of the unit
speakers.
wrong position.
correctly.
Sound distorted sometimes.
The compact disc may be
Try to replace the disc with
defective.
another one.
The compact disc is dirty.
Try to clean the compact disc by
instructions of disc cleaning.
A compact disc is sometimes
ejected. (Display shows "E1", an
error message.)
The pickup lens is dirty.
Clean the tens. (Use CD lens
cleaning disc.)
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CQ-DP738/728EU
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