Question about Car Audio & Video
You have a faulty output device(s)... If there is NO LOAD, then you have an internal problem, the Amp "Thinks" it is sensing a "Short" and is shutting down, to "Protect" itself...
Posted on Feb 02, 2010
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Posted on Jan 02, 2017
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Jul 11, 2011 | Kenwood Car Audio & Video
Should the amplifier go into protect mode, simply disconnect all RCA and speaker leads, while keeping +12 volt, power ground and remote leads connected.
1. Now turn the amplifier back on, and if the diagnostic LED lights, the amplifier has an internal fault.
2. If not, plug the RCA cables back, and reset the amplifier. If it goes into diagnostic now, the fault lies in the input, either with bad cables or source unit.
3. If the amplifier seems fine with RCA cables plugged in, connect the speakers, one at a time, and if one of the speakers or its wiring is faulty, it will activate the diagnostic
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