Troubleshooting - Panasonic CQ-DFX972N Operating Instructions Manual

Troubleshooting

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Preliminary Steps
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Check and take steps as described in the tables below.
37
If You Suspect Something Wrong
Immediately switch power off.
Disconnect the power cable and check that there is neither smoke
nor heat from the unit before asking for repairs. Never try to repair
the unit yourself because it is dangerous to do so.
Product Service
If the suggestions in the charts do not solve the problem, we recommend that you take it to your nearest authorized
Panasonic Service Center. The product should be serviced only by a qualified technician.
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Common
Problem
No power.
No sound.
Only sound, no display.
Noise.
Buttons unusable
(each source operation).
Audio sound is output
but the display shows
demonstration message.
40
Car's engine switch is not on.
aTurn your car's ignition switch to ACC or ON.
Cables are not correctly connected.
aConnect cables correctly.
Battery cable: Connect the battery cable to the terminal that is always live.
Accessory cable: Connect the accessory cable to your car's ACC source.
Grounding wire: Connect the grounding wire to a metal part of your car.
Fuse is burnt.
aCall the store where you purchased the unit, or your nearest Panasonic
Service Center and ask for replacement fuse.
Mute is set to ON.
aSet it to OFF.
Cables are not correctly connected.
aConnect cables correctly.
External Mute lead is not correctly connected.
aConnect the External Mute lead correctly.
Condensation (dew).
aWait for a while before use.
The display is set to Display OFF.
aPress [DISP] to change the display. (
A mobile phone is used near the unit.
aKeep the mobile phone away from the unit.
Menu is displayed.
aPress [MENU] / [SEL] or [DISP] to return to the regular mode.
Demonstration mode is ON.
aPress [DISP] to cancel the demonstration mode.
CQ-DFX972N
Cautions:
¡Do not use the unit if it malfunctions or
something is wrong.
¡Do not use the unit in an irregular condition,
for example, without sound, or with smoke or
foul smell, which can cause ignition or electric
shock. Immediately stop using the unit and
call the store where you purchased it.
Possible cause / Possible solution
a Page 7)