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TROUBLE SHOOTING
Symptom
Amplifier
will not
power up
Protection
LED Comes on
No output
Low output
High hiss in
The speakers
Distorted sound
Amplifier gets
Very hot
Possible Remedy
Check to make sure you have a good ground connection.
Check that there is battery power on the (+)terminal .
Check all fuses, replace if necessary .
Make sure that the Protection LED is not illuminated.
Check for short circuits on speaker leads.
Check the speaker load not beyond the minimum load.
Remove speaker lead, and reset the amplifier. If the protection LED still
Comes on, then the amplifier is faulty and needs servicing .
Check that the RCA audio cables are plugged into the proper inputs.
Check all speakers wiring.
Check the headunit output and the amplifier level setting.
Reset the level Control.
Check the Crossover Control settings.
Check the RCA cable is not shorted to power ground at amplifier side.
Check the amplifier grounding.
Check that the Input level control is set to match the signal level of the head
unit. Always try to set the Input level as low as possible.
Check that all crossover frequencies are properly set.
Check for short circuits on the speaker leads.
Check that the minimum load impedance for the amplifier model is correct.
Check that there is good air circulation around the amplifier. In some
applications, It may be necessary to add an external cooling fan.
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