Panasonic CQ-C8401W Manual page 18

Troubleshooting
Problem
Some operations are not executable in particular modes such as menu mode.
Some operations
a Read the operating instructions carefully and cancel the mode. In case the
are not executable.
unit is still out of order, consult the dealer.
BALANCE/FADER setting is not appropriate.
a Readjust BALANCE/FADER.
No sound from
There is a break, a short circuit, poor contact or wrong wiring regarding the speaker
speaker(s)
wiring.
a Check the speaker wiring.
The speaker
channels are
The speaker wiring is confused between right and left.
reversed between a Perform the speaker wiring in accordance with the wiring diagram.
right and left.
The sound field is
not clear in the
The plus and minus terminals at right and left channels of speakers are connected
stereo mode.
reversely.
Central sound does a Perform the speaker wiring in accordance with the wiring diagram.
not settled.
The safety device works.
The power fails
a
Call the store where you purchased the unit, or your nearest Panasonic
unintentionally.
Service Center.
Something such as a peeled label obstructs the disc coming out.
a Hold down the [OPEN] button for 2 sec. or more when the face plate is open
(disc forced ejection). In case that the disc forced ejection does not work,
consult the dealer
Disc unejectable
The microcontroller in the unit operates abnormally due to noise or other factors.
a
Unplug the power cord and plug it again. In case the unit is still out of order,
consult the dealer.
36
CQ-C8401W/C7401W
Possible cause Possible solution
a
Problem Possible cause
Antenna installation or wiring of antenna cable is faulty.
a Check whether the antenna mounting position and its wiring are correct. In
addition, check to see whether the antenna ground is securely connected to
Poor reception or
the chassis.
noise
No power is supplied to the antenna amplifier (when using a film antenna, etc.).
a Check the wiring of the antenna battery lead.
The number of auto
The number of receivable stations is less than 6.
preset stations is
a Move to an area where receivable stations number is maximum, and try pre-
setting.
less than 6.
The contact of the battery lead is poor, or the battery lead is not always powered.
Preset stations
a Make sure that the battery lead is connected securely, and preset stations
cannot be stored.
again.
The disc is inserted upside down.
a Insert a disc correctly.
No playback or
disc ejected
There is a flaw or foreign material on the disc.
a
Remove the foreign material, or use a flawless disc.
Sound skipping or
There is a flaw or foreign material on the disc.
noise a Remove the foreign material, or use a flawless disc.
The unit is not sufficiently secured.
a
Secure the unit to the console box.
Sound skipping
due to vibration
The unit is tilted at over 30˚ in the front-to-end direction.
a Make the angle 30˚ or less.
Possible solution
a
37
CQ-C8401W/C7401W