Trouble Shooting - Panasonic CQ-VD7001W Operating Instructions Manual

Trouble Shooting

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
Service Center. The product should be serviced only by qualified
personnel. Please refer checking and repair to professionals.
Panasonic shall not be liable for any accidents arising out of neglect
of checking the unit or your own repair after your checking.
Common
Problem
The power cord (battery, power and ground) is connected in the wrong way.
aCheck the wiring.
No power to the unit
Fuse blows out.
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
generated.
The wiring of speaker lines is not correct, or a break or poor contact arises.
aCheck the wiring in accordance with the wiring diagram.
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
Noise
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 is made in step Alternator 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.
Some operations are
aRead the operating instructions carefully and cancel the mode. If the
not executable.
unit is still out of order, consult your dealer.
There is a break, a short circuit, poor contact or wrong wiring regarding the
No sound from
speaker wiring.
speaker(s)
aCheck the speaker wiring.
The speaker channels
The speaker wiring is reversed between right and left.
are reversed between
aPerform the speaker wiring in accordance with the wiring diagram.
right and left.
The sound field is not
The plus and minus terminals at right and left channels of speakers are con-
clear in the stereo
nected reversely.
mode. Central sound is
aPerform the speaker wiring in accordance with the wiring diagram.
not settled.
The power of the unit The safety device works.
fails unintentionally. aConsult your dealer, or your nearest Panasonic Service Center.
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CQ-VD7001W
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.
Possible cause Possible solution
a
(a page 64)
Radio
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-
Poor reception or
nected to the chassis.
noise
No power is supplied to the antenna amplifier (when using a film antenna, etc.).
aCheck the wiring of the antenna battery lead.
The number of auto The number of receivable stations is less than 6.
preset stations is less aMove to an area where receivable stations number is maximum, and try
than 6. presetting.
The contact of the battery lead is poor, or the battery lead is not always
powered.
Preset stations cannot
be stored. aMake sure that the battery lead is connected securely, and preset sta-
tions again.
CD
The disc is inserted upside down.
aInsert a disc correctly.
No playback or disc
ejected
There is a flaw or foreign object on the disc.
aRemove the foreign object, or use a flawless disc.
Sound skipping or There is a flaw or foreign object on the disc.
noise aRemove the foreign object, or use a flawless disc.
The unit is not sufficiently secured.
aSecure the unit to the console box.
Sound skipping due to
vibration
The unit is tilted at over 30˚ in the front-to-end direction.
aMake the angle 30˚ or less.
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.
Disc unejectable
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.
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