Panasonic cq-drx900n User Manual

Check and take steps as described in the tables below.

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.

Do not Use the Unit If It Malfunctions or Is 
Something Wrong.
Do not use the unit in a  irregular 
condition, for example, without sound, or 
with smoke or foul smell, can cause 
ignition or electric shock. Immediately 
stop using it and call the store where you 
purchased it.

Trouble

Cause

Car’s engine switch is not on.

Cables are not correctly 
connected.

Battery cable is not correctly 
connected.

Accessory cable is not correctly 
connected.

Grounding wire is not correctly 
connected.

Fuse is burnt.

Mute is set to ON

Cables are not correctly 
connected.

External-mute cable is not 
correctly connected (The word 
MUTING is shown.)

Condensation (dew)

Spectrum analyzer is in demo 
mode.

Step

Turn your car’s ignition switch to ACC or ON.

Connect cables correctly.

Connect the battery cable to the terminal that is always 
live.

Connect the accessory cable to your car’s ACC source.

Connect the grounding wire to a metal part of the car.

Call the store where you purchased the unit, or your 
nearest service station (see the attached sheet) and 
ask for fuse replacement.

Set it to OFF.

Connect cables correctly.

Connect the Navi-mute cable correctly.

Wait for a while before use.

Press 

 to cancel demo mode.

3

No power

No sound

Buttons unusable

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