Troubleshooting, Preliminary steps, If you suspect something wrong – Panasonic CQ-4330U User Manual

Page 19: Troubleshooting tips ❐ common, Xm control

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CQ-4330U

19

Preliminary Steps

Check and take steps as described in the tables below.

If You Suspect Something Wrong

Immediately 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.

No power.

Trouble

Vehicle’s ignition switch is not on.

a

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

Cables are not correctly connected.

a

Connect cables correctly.

Battery cable is not correctly connected.

a

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

Power connector is not correctly connected.

a

Connect the power connector to your vehicle’s ACC source.

Grounding wire is not correctly connected.

a

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

Mute is set to ON.

a

Set it to OFF.

Cables are not correctly connected.

a

Connect cables correctly.

The ground lead is not connected properly.

a

Connect the ground lead properly.

Cautions:

• Do not use the unit if it malfunctions or if there is

something wrong.

• Do not use the unit in irregular 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.

Cause/Step

Troubleshooting Tips
Common

No sound.

Noise.

Antenna

No singl

off air

No info

XM non

Trouble

Antenna no connection

a

Check the XM receiver's antenna.

No XM signal

a

select a channel which can be received.

No chanel service

a

select a channel which can be received.

The original channel cannot receive signal.

a

select a channel which can be received.

Do not connect the XM receiver completely.

a

Check the XM receiver's connections.

Cause/Step

XM Control

Troubleshooting

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