Question about Autotek XS-900.4 Car Audio Amplifier
The amp will not come out of protection mode. All wires unhooked. even tried alternate power source. A new amp is installed to same setup as this and has had no problems. Help
The amp does not go on protection only because of wiring or power source problem , but also and mainly when there is an internal fault.
Protection is started whenever an out-of range voltage value is detected from the controller circuit.
Protection can be triggered from a burnt final IC or from a speaker wiring problem.
Since you have ruled out speake, wiring and power source problems, then this Amp is probably defective
If the Amp works fine on a different vehicle, then protection mode may start either because speakers impedance is not within Amp specs, or because the amp has a too big power draw. In this last case the problem is fixed installing a capacitor on the Amp 12V line.
Posted on Jun 06, 2010
If it's not blowing fuses, then usually you can eliminate power supply failure. I bet on a shorted output. Or outputs. 80% of these amps suffer from crappy solder traces to deliver power when needed.
Posted on Oct 19, 2012
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Posted on Jan 02, 2017
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