Question about JVC AM FM CD DET FACE CAR STEREO

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My clarion cd player in my boat was working fine now it says amp grd. I have looked but i see nothing unhooked what can i do to get sound out of my speakers?

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  • Master
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Remove all the speaker wires.

Power the radio back on and verify it is not the radio at fault.

If it powers up, check the speakers with a Digital Multimeter set to OHMS 20x.

Each speaker should have a resistance of 4 ohms. (or 8 in some cases)

Any variance (+/- .5ohms) means the voicecoil is blown, and replace that speaker.


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Posted on Jul 19, 2009

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  • JVC Master
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If it says amp grd you have a shorted speaker, speaker wire, or possible corrosion inside the deck, shorting out the output ic.

Posted on Jul 15, 2009

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