Question about Power Acoustik LT-980/2 Car Audio Amplifier

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Shorted a speaker wire together

I have a pioneer amp that I accidently shorted one of the speaker wires together, and the amp says power off when i turn it on. Will it reset its self? or is there a reset switch or is there a blown fuse? Kevin.

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  • kevin0523 Jul 16, 2008

    I forgot to mention this is a home reciever, also the fuse is not blown. When i turn it on, it comes on then says power off, and goes to standby. Does any one know whats wrong?


    thanks,


    kevin.

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  • 7 Answers

Check the fuse. If its not blown rewire the ground to bare metal.  make sure the power wire is the right gauge aand connected right

Posted on Jul 16, 2008

  • zeke pxrrx Jul 16, 2008

    If you can, return it to the store you bought it from.  If you cant return it, open it up and look for any burned wires.  


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If the amp is in protect mode, it probably has shorted output transistors. To eliminate other possible problems, do the following. I'll assume that you've checked the amplifier's on-board fuses.

With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp (not on the point where the ground wire connected to the vehicle) and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low.

If the voltage remains near or above 12v, disconnect all speaker wires from the speaker terminals of the amp and disconnect signal cables from the amp. If it powers up, the wiring needs to be checked. If it still shuts down, the amp almost certainly has shorted output transistors and will need to be repaired.

Let me know if you have any other questions.

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