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Troubleshooting
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.
Troubleshooting Tips
❐ Common
Trouble
No power.
No sound.
Noise.
14
CQ-2130U
Cautions:
• Do not use the unit if it malfunctions or if there is
something wrong.
• Do not use the unit in irregular condition, for exam-
ple, 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.
Vehicle's ignition switch is not on.
Turn your vehicle's ignition switch to ACC or ON.
a
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.
Connect the power connector to your vehicle's ACC source.
a
Grounding wire is not correctly connected.
Connect the grounding wire to a metal part of the car.
a
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.
Connect the ground lead properly.
a
Cause/Step
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