Troubleshooting; No Audio; Audio Cycles On And Off; Distorted Audio - Clarion XR2220 Owner's Manual

6. TROUBLESHOOTING

No Audio

 Low or no remote turn-on voltage: check remote connections at the amplifier and source
unit.
 Blown amplifier fuse: replace with a new fast-blow fuse (same rating).
 Power wires not connected: check battery and ground wiring at the amplifier and check
the battery connections.
 Speaker leads shorted: check speaker continuity to ground; it should not show a
common ground.
 Speakers not connected or are blown: check speaker connections at the amplifier;
measure coil impedance.

Audio cycles on and off

 Thermal protection circuits are shutting the amplifier off.
 Check the location for adequate ventilation. Consult an authorized Clarion audio dealer.

Distorted audio

 Gain is not properly set or the speaker cones are damaged.
 Review the instructions for setting the gain. Inspect each speaker cone for signs of
damage, such as a frozen cone, burning smell, etc.

Amplifier fuse keeps blowing

 The wiring is connected incorrectly or there is a short circuit.
 Review the installation precautions and diagram in this manual and check all wiring
connections.

Whining or ticking noise when engine on

 The amplifier is picking up alternator or radiated noise.
 Turn down input gain.
 Move the audio cables away from the power wires.
 Check the power and ground connections on the amplifier and install an in-line noise
filter on the source unit's power wire.
 Check the alternator and/or voltage regulator. Test for a weak battery or add water to
the battery.
XR2220/XR2420/XR2120
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