Question about Autotek XS-900.4 Car Audio Amplifier

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Autotek XS-900.4 stuck in protect mode

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

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Hi.

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.

Regards.

Ginko.

Posted on Jun 06, 2010

  • Ginko
    Ginko Jun 10, 2010

    Hi.



    I noticed that you left negative feedback.



    I spent time on your problem, and I will be grateful if you can change
    the feedback. The negative rating given will only affect the expert.



    Goodbye.



    Ginko.

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  • 17 Answers

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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