Panasonic CQDRX900U - Manual (Page 40)

Troubleshooting
Preliminary Steps
Check and take steps as described in the tables below.
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.
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, can cause ignition or
electric shock. Immediately stop using it
and cail the store where you purchased it.
Common
Trouble 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.
No power
Battery cable is not correctly
connected.
Connect the battery cable to the terminal that is always
live.
Accessory cable is not correctly
connected.
Connect the accessory cable to your car’s ACC source.
Grounding wire is not correctly
connected.
Connect the grounding wire to a metal part of the car.
Fuse is burnt.
Call the store where you purchased the unit, or your
nearest service station (see the attached sheet) and
ask for fuse repiacement.
Mute is set to ON Set it to OFF.
Cables are not correctly
connected.
Connect cabies correctly.
No sound
External-mute cable is not
correctly connected (The word
MUTING is shown.)
Connect the Navi-mute cable correctly.
Condensation (dew) Wait fora while before use.
Buttons unusable
Spectrum analyzer is in demo
mode.
Press [DISP] to cancel demo mode.
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CQ-DRX900U