EXCURSION HXA2K - Trouble Shooting; Troubleshooting Guide; HXA Amplifier Features

Symptom Possible Remedy
Amplifier
will not
power up
Check to make sure you have a good ground connecon.
Check that there is baery power on the (+)terminal .
Check all fuses, replace if necessary .
Make sure that the Protecon LED is not illuminated.
Protecon
LED Comes on
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 protecon LED sll
Comes on, then the amplifier is faulty and needs servicing .
No output Check that the RCA audio cables are plugged into the proper inputs.
Check all speakers wiring.
Check the headunit output and the amplifier level seng.
Low output Reset the level Control.
Check the Crossover Control sengs.
High hiss in
The speakers
Check the RCA cable is not shorted to power ground at amplifier side.
Check the amplifier grounding.
Distorted sound
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.
Amplifier gets
Very hot
Check that the minimum load impedance for the amplifier model is correct.
Check that there is good air circulaon around the amplifier. In some
applicaons, It may be necessary to add an external cooling fan .
TROUBLE SHOOTING
13
EXCURSION
l COMPACT SIZE AND TINY FOOTPRINT.
l DOUBLE SIDE PCB AND SMD COMPONENTS.
l FULL MOSFET DESIGN.
l LPF HPF CROSSOVER., AND BPF
l ADJUSTABLE BASSBOOST.
l 0.5 HXA5KOHM LOAD STABLE FOR
l NOISE FREE DESIGN.
l OVERLOAD, OVERHEAT, HIGH/LOW VOLTAGE PROTECTION.
l RoHS COMPLIANT.
HXA Amplifier Feature
l AUTO TURN ON/OFF via DC or AUDIO
l ALL MONO AMPLIFIER BRIDGEABLE
l OPTIONAL REMOTE CONTROLE