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© 2009 Directed Electronics. All rights reserved. 20
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 that ESP status indicator is not indicating an active event. 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 80º C (176º 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 exceed-
ing maximum capability of amplifier , resulting
in distorted sound
Readjust gain. Refer to the Adjusting the Sound of the System under Setup and
Troubleshooting 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.