Troubleshooting
If You Suspect Something Wrong
Check and take steps as described below.
If the described suggestions do not solve the problem, it is recommended to take the unit to your nearest authorized Panasonic Service Centre. The product should be serviced only by qualified personnel.
Cautions:
¡Do not use the unit in an irregular condition, for example, without sound, or with smoke or foul smell, which can cause ignition or electric shock. Immediately stop using the unit and call the store where you purchased it.
¡Never try to repair the unit by yourself because it is dangerous to do so.
Problem
Some operations
are not
executable.
No sound from
speaker(s)
Possible cause a Possible solution
Some operations are not executable in particular modes such as menu mode.
aRead the operating instructions carefully and cancel the mode. In case the unit is still out of order, consult the dealer.
BAL/FAD setting is not appropriate.
aReadjust BAL/FAD.
There is a break, a short circuit, poor contact or wrong wiring regarding the speaker wiring.
aCheck the speaker wiring.
English
Problem
No power to the
unit
Sound is not
generated.
Possible cause a Possible solution
The power cord (battery, ACC and ground) is connected in the wrong way.
aCheck the wiring.
Fuse blowout
aEliminate the cause of fuse blowout and replace the fuse with new one. Consult your dealer.
MUTE is set to ON.
aSet MUTE to OFF.
There is contact between the external mute lead and the chassis.
aConnect the external mute lead correctly. If the lead is unused, insulate it.
The wiring of speaker lines are not correct, or a break or poor contact arises.
aCheck the wiring in accordance with the wiring diagram. (Installation Instructions)
Common (continued)
The speaker channels are reversed between right and left.
The sound field is
not clear in the
stereo mode.
Central sound does
not settled.
The power fails unintentionally.
The speaker wiring is confused between right and left.
aPerform the speaker wiring in accordance with the wiring diagram.
The plus and minus terminals at right and left channels of speakers are connected reversely.
aPerform the speaker wiring in accordance with the wiring diagram.
The safety device works.
aCall the store where you purchased the unit, or your nearest Panasonic Service Centre.
Common
The demonstration screen displayed and no operable
Noise
Noise is made in step with engine revolutions.
You cannot operate the unit while the demonstration screen appears.
aPress [DISP] to end the demonstration screen.
If the demonstration screen appears frequently, there is a possibility that poor contact or wrong wiring arises between the battery lead of the unit and the battery cable of the car. (The battery lead should be always powered.)
aCheck the battery wiring in accordance with the wiring diagram.
There is an
aKeep an
The contact of the ground lead is poor.
aMake sure that the ground lead is connected to an unpainted part of the chas- sis securely.
Alternator noise comes from the car.
aChange the wiring position of the ground lead.
aMount a noise filter on the power supply.
Radio
Poor reception or
noise
Stereo broadcast is received only in mono.
Only nearby
stations can be
received.
Antenna installation or wiring of antenna cable is faulty.
aCheck whether the antenna mounting position and its wiring are correct. In addition, check to see whether the antenna ground is securely connected to the chassis.
No power is supplied to the antenna amplifier (when using a film antenna, etc.).
aCheck the wiring of the antenna battery lead.
The MONO mode is active.
aCancel the MONO mode.
The LOCAL mode is active.
aCancel the LOCAL mode.
Troubleshooting
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