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CQ-VD7001U CQ-VD7001U
Tr ouble Shooting
English
English
■ Common
Problem
Possible cause
a
Possible solution
The safety device works.
aConsult your dealer, or your nearest Panasonic Servicenter.
The power of the unit
fails unintentionally.
The plus and minus terminals at right and left channels of speakers are con-
nected reversely.
aPerform the speaker wiring in accordance with the wiring diagram.
The sound field is not
clear in the stereo
mode. Central sound is
not settled.
The speaker wiring is reversed between right and left.
aPerform the speaker wiring in accordance with the wiring diagram.
The speaker channels
are reversed between
right and left.
There is a break, a short circuit, poor contact or wrong wiring regarding the
speaker wiring.
aCheck the speaker wiring.
No sound from
speaker(s)
Some operations are not executable in particular modes such as menu mode.
aRead the operating instructions carefully and cancel the mode. If the
unit is still out of order, consult your dealer.
Some operations are
not executable.
Alternator noise comes from the car.
aChange the wiring position of the ground lead.
aMount a noise filter on the power supply.
Noise is made in step
with engine revolu-
tions.
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
eliminated 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
MUTE is set to ON.
aSet MUTE to OFF.
The wiring of speaker lines is not correct, or a break or poor contact arises.
aCheck the wiring in accordance with the wiring diagram. (a Installation
Instructions)
Sound is not
generated.
The power cord (battery, power and ground) is connected in the wrong way.
aCheck the wiring.
Fuse blows out.
aEliminate the cause of fuse blowout and replace the fuse with new one.
Consult your dealer.
No power to the unit
■
Radio
■
XM Satellite Radio
■
CD
Something such as a peeled label obstructs the disc coming out.
aPress and hold the
[u] for more than 10 seconds (disc forced ejection).
In case that the disc forced ejection does not work, consult your dealer.
The microcontroller in the unit operates abnormally due to noise or other factors.
aUnplug the power cord and plug it again. In case the unit is still out of
order, consult your dealer.
Disc unejectable
The unit is not sufficiently secured.
aSecure the unit to the console box.
The unit is tilted at over 30˚ in the front-to-end direction.
aMake the angle 30˚ or less.
Sound skipping due to
vibration
There is a flaw or foreign object on the disc.
aRemove the foreign object, or use a flawless disc.
Sound skipping or
noise
The disc is inserted upside down.
aInsert a disc correctly.
There is a flaw or foreign object on the disc.
aRemove the foreign object, or use a flawless disc.
No playback or disc
ejected
No contract with XM Satellite Radio Inc.
aRefer to page 36 of this book and the XM’s website to sign up for XM
Radio service.
Channel unselectable
The contact of the battery lead is poor, or the battery lead is not always
powered.
aMake sure that the battery lead is connected securely, and preset sta-
tions again.
Preset stations cannot
be stored.
The number of receivable stations is less than 6.
aMove to an area where receivable stations number is maximum, and try
presetting.
The number of auto
preset stations is less
than 6.
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 con-
nected 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.
Poor reception or
noise
❑ If You Suspect Something Wrong
Check and take steps as described below.
If the described suggestions do not solve the problem, it is recom-
mended to take the unit to your nearest authorized Panasonic
Servicenter. The product should be serviced only by qualified per-
sonnel. Please refer checking and repair to professionals. Panasonic
shall not be liable for any accidents arising out of neglect of check-
ing the unit or your own repair after your checking.
Warning
¡Do not use the unit in an irregular condition,
for example, without sound, or with smoke or
a foul smell, which can cause ignition or elec-
tric shock. Immediately stop using the unit
and consult your dealer.
¡Never try to repair the unit by yourself
because it is dangerous to do so.