© 2008 Directed Electronics. All rights reserved. 18
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 connected Check speaker wires and repair or replace as needed.
Speaker are blown Check system with known working speaker and repair or replace speakers as
needed.
Audio cycles on and off
Thermal protection engages when amplifier heat
sink temperature exceeds 90º C (190º F)
Make sure there is proper ventilation for amplifier and improve ventilation
as needed.
Loose or poor audio input Check RCA connections and repair or replace as needed.
Loose power connections Check power wires and ground connections and repair or replace as needed.
Distorted output
Amplifier level sensitivity set too high exceeding
maximum capability of amplifier
Readjust gain. Refer to the Adjusting the Sound of the System section of this
manual for detailed instructions.
Impedance load to amplifier too low Check speaker impedance load, if below 1Ω, rewire the speakers to achieve
higher impedance.
Shorted speaker wires Check speaker wires and repair or replace as needed.
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