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My JVC KS-AX4302 amp got to hot and now the protection light comes on automatically.. What could be the problem and how do I fix it?

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check your ground and power

Posted on Sep 04, 2009

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My jvc ks-ax4302 goes straight to protection when I turn it on, just curious what could be the cause and where could I find a schematic of the mother board?


If the Power/Protect LED is red, usually the speaker wiring has a short-circuit or the speaker total impedance is wrong for the system. The most common issue is a bare spot on a speaker wire that is coming in contact with part of the car or another bare wire. Sometimes, it just means that the system got too hot.

Before you look for a problem with the KS-AX4302 board, look at your wiring and replace any damaged wires.

I hope this helps.

Cindy Wells

Apr 11, 2015 | JVC Car Audio & Video

1 Answer

My amp going into protection


This is caused by only a few things, shorted speaker wiring, shorted speaker voice coil or shorted output circuit in the amp, which is usually one of the large power transistors. Disconnect all the speakers and see if the protect comes on, if not you have a problem in the speaker circuit.

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Jan 18, 2012 | JVC KS-AX7300 Car Audio Amplifier

1 Answer

I just bought a VC KS-AX4302 amplifier. When hooked up to power, the amp immediately turns on and the deck turns on and starts playing music, with no key in the ignition. Both stay on until the power is...


You must have gotten the power lines mixed up. You need to connect the power to the amp and radio the the switched side of the power supply. Or, you connected the amp power and the amp switch wire, usually the blue wire in reverse.

Oct 08, 2010 | JVC Ksax4302 Bridgable 4-Channel Power...

1 Answer

Jvc amp light up red


If the red light is on it is going into protect mode. One of the speakers is shorting out or you have a very poor ground.

Aug 15, 2010 | JVC Arsenal KS-AR8002D Class D 2-Channel...

1 Answer

How do i turn my protector light off of my amp?


I'm not really sure how your amp works but i can tell you that if that light is on there is probably something wrong. Check your ground wire. Also it could be your not getting enough power to your amp, or too much

Mar 06, 2010 | JVC KS-AX7300 Car Audio Amplifier

1 Answer

My jvc ax6300 amp is wired in and the protection light is on. no sound from the subs?


Try to rest amp (turn off power) be sure subs are disconnected. Se if protection light comes on. If it does the amp needs to be serviced porbably a burnt component. If the protection light does not come on, connect one sub at a time to see if either one surges. Could also be that the gain is turned up too much.

Nov 06, 2009 | JVC KS-AX6300 Car Audio Amplifier

1 Answer

When I turn the volume up even a little bit, the protect light comes on and stays on


Hiya,

Try disconnecting the speaker cables, then turn it up and see if it protects. If not, then connect one speaker at a time (on very low volume otherwise could pop the amp) and see if you can identify a faulty speaker/channel. Then try a known working speaker on the amp channel that is giving problems (to eliminate a fault with the amp). If the known working speaker also trips the amp, then it is that channel faulty. Hopefully you get away with a bad speaker wire though!!

Best of luck

Jul 15, 2009 | JVC KS-AX4550 Car Audio Amplifier

1 Answer

Amp power protector comes on


Dis connect the sub then turn it on, don't let the wires touch or it will have a problem. If your lucky, it's just your sub that needs replaced. If not, your amp needs serviced. Rockford use to have a three year warranty... I'm not sure what they have now since mass merchants beat up the line. Hope this helps

Jun 02, 2009 | Car Audio & Video

2 Answers

Power Protectin stays on


Sounds like you have blown your amplifier. There could be severqal causes for this happening. Take it to an electronics repair shop, but honestly you might just be better off replacing it altogether.

Jul 15, 2008 | JVC KS-AX704 Car Audio Amplifier

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