Panasonic CQ-C300U Manual Do Utilizador

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CQ-C300U
25
English
Troubleshooting
Troubleshooting
Problem
Possible cause 
 
Possible solution
Some operations are 
not executable.
Some operations are not executable in particular modes such as menu mode.
  Read the operating instructions carefully and cancel the mode. If the unit is 
still out of order, consult your dealer.
No sound from 
speaker(s)
Balance/Fader setting is not appropriate.
  Readjust Balance/Fader.
There is a break, a short circuit, poor contact or wrong wiring regarding the 
speaker wiring.
  Check the speaker wiring.
The speaker channels 
are reversed between 
right and left.
The speaker wiring is confused between right and left.
  Perform the speaker wiring in accordance with the wiring diagram.
The sound field is not 
clear in the stereo 
mode.
Central sound does not 
settled.
The plus and minus terminals at right and left channels of speakers are connected 
reversely.
  Perform the speaker wiring in accordance with the wiring diagram.
The power fails 
unintentionally.
The safety device works.
  Consult your dealer, or your nearest Panasonic Servicenter.
Poor reception or 
noise
Antenna installation or wiring of antenna cable is faulty.
  Check 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.).
  Check the wiring of the antenna power lead.
The number of auto 
preset stations is less 
than 6.
The number of receivable stations is less than 6.
  Move to an area where receivable stations number is maximum, and try 
presetting.
Preset stations cannot 
be stored.
The contact of the battery lead is poor, or the battery lead is not always powered.
  Make sure that the battery lead is connected securely, and preset stations 
again.
Common (continued)
Radio