© 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 1
Ω, rewire the speakers to achieve
higher impedance.
shorted speaker wires
Check speaker wires and repair or replace as needed .
