E
N
GTroubleshooting
L
I
S
If You Suspect Something Wrong
HWarning
Check and take steps as described below.
31!Do not use the unit in an irregular condition,
for example, without sound, or with smoke or
If the described suggestions do not solve the problem, it is rec-
a foul smell, which can cause ignition or elec-
ommended to take the unit to your nearest authorized Panasonictric shock. Immediately stop using the unit
Servicenter. The product should be serviced only by qualified
and consult your dealer.
personnel. Please refer the checking and the repair to profes-!Never try to repair the unit by yourself
sionals. Panasonic shall not be liable for any accidents arising
because it is dangerous to do so.
out of neglect of checking the unit or your own repair after your
checking.
Never take measures especially those other than indicated by
italic letters in OPossible Solution� described below because
those are too dangerous for users to handle themselves.
 Common
ProblemPossible cause a Possible solution
The power cord (battery, power and ground) is connected in the wrong way.
aCheck the wiring.
Fuse blows out.No power to the unit
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.
Sound is not generat-
ed.The wiring of speaker lines is not correct, or a break or poor contact arises.
aCheck the wiring in accordance with the wiring diagram. (Installation
Instructions)
There is an electromagnetic-wave generator such as a cellular phone near the
unit or its electrical lines.
aKeep the electromagnetic-wave generator such as a cellular phone
away from the unit and the wiring of the unit. If noise cannot be elimi-
Noisenated due to the wiring harness of the car, consult your dealer.
The contact of the ground lead is poor.
aMake sure that the ground lead is connected to an unpainted part of the
chassis securely.
Noise is made in stepAlternator noise comes from the car.
with engine revolu-aChange the wiring position of the ground lead.
tions.aMount a noise filter on the power supply.
Some operations are not executable in particular modes such as menu mode.
aRead the operating instructions carefully and cancel the mode. If theSome operations are
unit is still out of order, consult your dealer.not executable.
32
CQ-C5403U/C5303U |
ACEC
