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Troubleshooting Tips
Symptom Probable Cause Action To Take
No output
Low or no remote turn-on Check remote turn-on voltage
at voltage amplifier and repair
as needed.
Fuse blown Check power wire's integrity
and check for speaker shorts. Fix
as needed and replace fuse.
Power wires not connected Check power wire and ground
connections and repair or
replace as needed.
Audio input not connected Check RCA connections and
repair or replace as needed.
Speaker wires not Check speaker wires and repair
connected or replace as needed.
Speakers are blown Check system with known work
ing speaker and repair or
replace speakers as needed.
Audio cycles
on and off
Thermal protection engages Make sure there is proper venti
when amplifier heatsink lation for amplifier and improve
temperature exceeds 90°C ventilation as needed.
(190°F)
Loose or poor audio input Check RCA connections and
repair or replace as needed.
Loose power connections Check power wire and ground
connections and repair or
replace as needed.
Distorted output
Amplifier level sensitivity Readjust gain. Refer to the
set too high exceeding Adjusting the Sound of the
maximum capability of System section of this manual
amplifier for detailed instructions.
Impedance load to amplifier Check speaker impedance load,
too low if below 4W mono or 2W stereo,
rewire speakers to achieve
higher impedance.
Shorted speaker wires Check speaker wire connections
and fix or replace as needed.
Speaker not connected Check speaker wiring and repair
to amplifier properly or replace as needed. Refer to
the Speaker Connections section
of this guide for detailed
instructions.
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©2003 Directed Electronics, Inc.