Troubleshooting - Panasonic CQ-DF602U Operating Instructions Manual

Troubleshooting

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Preliminary Steps
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Check and take steps as described in the tables below.
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If You Suspect Something Wrong
Immediately switch the power off.
Disconnect the power connector and check that there is nei-
ther smoke nor heat from the unit before asking for repairs.
Never try to repair the unit yourself because it is dangerous to
do so.
Troubleshooting Tips
Common
Trouble
Car's engine switch is not on.
Turn your car's ignition switch to ACC or ON.
Cables are not correctly connected.
Connect cables correctly.
Battery cable is not correctly connected.
Connect the battery cable to the terminal that is always active.
No power.
Accessory cable is not correctly connected.
Connect the accessory cable to your car's ACC source.
Grounding wire is not correctly connected.
Connect the grounding wire to a metal part of the car.
Fuse is burnt out.
Call the store where you purchased the unit, or your nearest
Servicenter (see the attached sheet) and ask for fuse replacement.
Mute is set to ON.
Set it to OFF.
Cables are not correctly connected.
No sound.
Connect cables correctly.
Condensation (dew).
Wait for a while before use.
The display shows "display and light off".
Only sound, no display.
Press [DISP] (display) to change the display.
A mobile phone is used near the unit.
Noise.
Keep the mobile phone away from the unit.
Audio sound is output
Demonstration mode is ON.
but the display shows
Press [DISP] (display) to cancel demonstration mode.
demonstration message.
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Caution:
≥ Do not use the unit if it malfunctions or
is something wrong.
≥ Do not use the unit in abnormal condi-
tion, for example, without sound, or with
smoke or foul smell, which can cause ig-
nition or electric shock. Immediately
stop using it and call the store where
you purchased it.
Cause/Step
Radio
Trouble
Station is too far, or signals are too weak.
Select other stations of higher signal level.
The motor antenna relay control lead is not connected correctly.
Too much noise in FM
If there is a motor antenna in the car, connect the motor antenna
stereo and monaural
relay control lead to the motor antenna lead that is installed in the
broadcasts.
car correctly.
The radio antenna is not extended enough.
Fully extend the radio antenna.
Battery cable is not correctly connected.
Preset station is reset.
Connect the battery cable to the terminal that is always active.
CD
Trouble
Disc is upside down.
Place disc in the correct direction with the label side up.
≥ Disc is dirty.
≥ Disc has scratches.
Clean disc, referring to the section on "Notes on CD/CD Media (CD-
Disc is in the CD com-
R, CD-RW)."
partment but no sound is
3z (8 cm) disc is ejected automatically.
made, or disc is ejected
automatically.
A disc that has data other than CD-DA type is played.
Discs that have CD-DA type data should be used.
The unit may not successfully play back a CD-R/RW that was made
by the combination of writing software, a CD recorder (CD-R/RW
drive) and a disc if they are incompatible one another. Refer to in-
structions for the concerned devices for details.
≥ Disc is dirty.
≥ Disc has scratches.
Clean disc, referring to the section on "Notes on CD/CD Media (CD-
Sound skips, bad sound R, CD-RW)."
quality. (e.g. caused by
The unit may not successfully play back a CD-R/RW that was made
noise)
by the combination of writing software, a CD recorder (CD-R/RW
drive) and a disc if they are incompatible one another. Refer to in-
structions for the concerned devices for details.
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Cause/Step
Cause/Step
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