Troubleshooting; Preliminary Steps; Troubleshooting Tips - Panasonic CQ-DP383U User Manual

Troubleshooting

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Preliminary Steps

H
Check and take steps as described in the tables
19
below.
If You Suspect Something Wrong
Immediately switch the power off.
Disconnect the power connector and check that
there is neither smoke nor heat from the unit before
asking for repairs. Never try to repair the unit your-
self 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.
Connect the battery cable to the terminal that is always active.
No power.
Connect the accessory cable to your car's ACC source.
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.
A mobile phone is used near the unit.
Keep the mobile phone away from the unit.
Noise.
The unit's grounding wire is not connected securely.
Check the metal areas of the car body (chassis), and connect the
grounding wire more securely.
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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CQ-DP383U
Caution:
≥ Do not use the unit if it malfunctions or is
something wrong.
≥ Do not use the unit in abnormal condition, for
example, without sound, or with smoke or foul
smell, which can cause ignition 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.
If there is a motor antenna in the car, connect the antenna control
lead to the motor antenna lead that is installed in the car correctly.
Too much noise in FM
stereo and monaural
The ground connection of the radio antenna is not secure enough.
(AM) broadcasts.
Check the ground connection of the mounted base part of the
antenna, and tighten up the screw.
The radio antenna is not extended enough.
Extend fully 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/MP3/WMA
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
Disc is in the CD
(CD-ROM, CD-R, CD-RW)". (page 41)
compartment but no
sound is made, or disc
A disc that has data other than CD-DA or MP3/WMA type is played.
is ejected automatically.
Discs that have CD-DA or MP3/WMA type data should be used.
The unit may not successfully play back a CD-R/RW that is made in
combination of writing software, a CD recorder (CD-R/RW drive)
and a disc which are incompatible one another. Refer to
instructions for the concerned devices for details.
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Cause/Step
Cause/Step
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