Table of Contents
Advertisement
Troubleshooting
Preliminary Steps
Check and take steps as described in the tables below.
If You Suspect Something is 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.
I
Common
Problem
No power
No sound
Only sound, no display
Noise
Buttons unusable
(each source operation)
Possible cause / Possible solution
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 is not correctly connected.
aConnect the battery cable to the terminal that is always live.
Accessory cable is not correctly connected.
aConnect the accessory cable to your car's ACC source.
Grounding wire is not correctly connected.
aConnect 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 fuse replacement.
Mute is set to ON.
aSet it to OFF.
Cables are not correctly connected.
aConnect cables correctly.
Condensation (dew)
aWait for a while before use.
The display is set to the No Display mode.
aPress [DISP] to change the display.
A mobile phone is used near the unit.
aKeep the mobile phone away from the unit.
Menu mode is displayed.
aPress [DISP] to return to the regular mode.
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.
CQ-FX721N
E
N
G
L
I
S
H
34
37
Advertisement
Table of Contents
