Question about Cadence A7 HC Car Audio Amplifier

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Cadence A7 HC not working

I got a Cadence A7 it does not want to work. Goes directly to diagnostic.

Posted by makjr13 on

  • makjr13 Aug 18, 2008

    I was just thinking of paying to get it fixed because i don't want to try fixing it. I am scared i might just mess it up more.

  • izzy2526 May 11, 2010

    My amp fried my ground wire on my wild beast sub. I resodered it back and hooked it back up and now it keep going to diagnostic. Even with it not hooked up. What should i do. should I send in please reply soon. thank you.



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If the amp is in protect mode, it probably has shorted output transistors. To eliminate other possible problems, read through the following page:

Amp in Protection - Troubleshooting

Let me know if you have any other questions.

Posted on Aug 18, 2008


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The prtection light normally responds to impedance problems with speakers....try diconnecting all speakers and see if situatioin continues,.........with the power light, ensure that you have proper grounding of the a,mplifier as well as insulationa dn fuse protecxtion mounting for the powe supplies

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