Panasonic Removable Full Front CD Player/Receiver with Dot Matrix and CD Changer Control CQ-DFX983U - Manual (Page 42)

Troubleshooting
Preliminary Steps
Check and take steps as described in the tables
below.
If You Suspect Something Wrong
Innmediately 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 by
yourself because it is dangerous to do so.
Caution:
• Do not use the unit if it malfunctions or if there
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.
Troubleshooting Tips
□ Common
Trouble
No power.
No sound.
Only sound, no display.
Noise.
Buttons unusable (each
source operation).
Cause/Step
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.
^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.
=>Connect cables correctly.
Condensation (dew).
\
^Wait for a while before use.
The display shows "display and light off”.
^Press [DISP] (display) to change the display.
A mobile phone is used near the unit.
^Keep the mobile phone away from the unit.
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.
Menu is displayed.
■ =>Press [MENU] or IDISP] (display) to return to the regular mode.
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