Panasonic CQ-VD7500U Operating Instructions Manual page 39

Troubleshooting
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File playing time is not You turned off the ignition switch of the car during playback.
a Playing another file will return the file playing time to normal.
displayed correctly.
Radio
Problem
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 connected
Poor reception or
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 receivable stations is less than 6.
The number of auto
aMove to an area where the number of receivable stations is greater, and
preset stations is less
try presetting.
than 6.
The contact of the battery lead is poor, or the battery lead is not always pow-
Preset stations cannot ered.
be stored. aMake sure that the battery lead is connected securely, and preset stations
again.
SD-Card
Problem
Not initialized SD-Card is inserted.
The Card is inserted
aInitialize the card and record the play data with your personal computer.
but unit can not recog-
nize it SD Card is out of order.
aReplace it with new one.
No file recorded
The unit recognizes
aRecord play data on SD-Card with your Personal computer.
the SD-Card but no file
can be selected. The name of file is not proper
aGive the proper file name to your play data
Car Navigation, VCR, Camcorder, Rear View Camera, Rear Monitor
Problem
The connection of a car navigation system is not correct.
The picture from a car
a Connect it correctly.
navigation system is
not displayed.
Input setting of a car navigation system is not correct.
a Correct the input setting.
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CQ-VD7700U/VD7500U
(continued)
Possible cause a Possible solution
Possible cause a Possible solution
Possible cause Possible solution
a
(a page 50).
Possible cause Possible solution
a
Car Navigation, VCR, Camcorder, Rear View Camera, Rear Monitor (Continued)
Problem
The picture from a VCR or a
A VCR or Camcorder is not connected correctly.
a Connect a VCR or Camcorder correctly.
camcorder is not displayed.
The VTR1-IN and/or VTR2-IN level is excessively high. (The "OVER" display
No sound from a VCR or
appears.)
a camcorder.
a Adjust the VTR Input level.
Rear view camera is not connected correctly.
The picture from a rear a Connect a rear view camera correctly.
view camera is not dis-
played.
Input setting of camera is not correct.
a Correct the input setting.
The picture or the sound
"AUTO" is not selected as the rear monitor setting.
of the rear monitor is not
a Select "AUTO" for the setting.
switchable.
Sound Settings
Problem
No sound from left,
Cables are not correctly connected.
right, front, or rear
aConnect the cables correctly.
speaker.
Left and right sounds
The speaker leads are connected in reverse between right and left.
are reversed.
aConnect the speaker wires to the correct one.
No sound on the
The speaker setting is "NO" or "NONE".
speaker. aSet it correctly.
Playing back a disc having a subwoofer channel
¡Subwoofer is set to "NO" in the speaker setting.
aSet subwoofer to "YES".
¡Down mix
aNo technical trouble. Cancel the down mix.
¡Private mode is set to "ON".
aSet private mode to "OFF".
A disc without subwoofer channel is played back, or analog audio is played
No sound from the back
¡Subwoofer is set to "NO" in the speaker setting.
subwoofer
aSet subwoofer to "YES".
¡Sound field (SPACE) is set to "OFF".
aNo technical trouble. Set it to other than "OFF".
¡A disc recorded on 1 ch, 3 ch, 4 ch, or 5 ch is played back.
aNo technical trouble. No audio is output from the subwoofer when such
a disc is played back.
Note: Sound does not come out of the subwoofer with default speaker setting
when SPACE is set to OFF. (However, some speaker settings allow sound output
even if SPACE is set to OFF.) If SPACE is set to VOCAL, the sound output level
from the subwoofer is lower than with other SPACE settings (except for OFF).
Possible cause Possible solution
a
Possible cause a Possible solution
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