Question about JVC MX-GC5 CD Shelf System

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My compact component system mx-gc5 keeps turning it self off after u turn it on. it stays on for like 10 sec

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  • justin_p_bro Feb 16, 2009

    i have the same kind of stereo and one day it stopped working. nothing happend to it but now i turn it on and it turns off, it doesnt say protect or anything. its very frustrating because i love this stereo.

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  • 223 Answers

This is probably a fault on the power supply sometimes caused by a diode. If you are capable investigate but if not PLEASE dont try anything to put your life in danger as the voltages present in the stereo can easily kill or injure. Good luck.

Posted on Sep 26, 2008

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Chances are that something is blown in the power output stages and units shuts down to protect against further damage.

Repair or replace, which ever is cheaper!

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Sounds like the unit is in 'demo' mode. Should be a button on the remote to turn this off.

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Even after disconnecting the speakers, the systems shut down, means that there is something short inside the set. Normally, the output amplifier section circuits will have the short. The set need service, and may have to replace the audio output IC of audio secion. Contact the nearest JVC authorised service center at your town. OK.

Jan 24, 2012 | JVC MX-GC5 CD Shelf System

1 Answer

Just say protect and turn off, how can i cancel this


Generally speaking, an amp protects itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.


Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.


You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.


If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.


If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.


Check for loose speaker connections at the speaker as a root cause for intermittent shutdown.

Mar 29, 2011 | JVC MX-GC5 CD Shelf System

1 Answer

My jvc compact component system keeps flashing PROTECT and then it shuts off


Generally speaking, an amp protects itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.


Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.


You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.


If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.


If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.

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i have tired all of them so now what can i do

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My JVC mx-gc5 stereo says protect and then shuts off


If protect is coming up on the display, it means the system is detecting a short somewhere on one of the speakers and so is turning the amp off to avoid damage.
Check all the connections at the back of the amp to ensure they are not shorting, and at the back of each speaker, if nothing is found there, check each wire for damage (like squashed or rodent damage).

Dec 12, 2009 | JVC MX-GC5 CD Shelf System

1 Answer

Jvc mx-gc5


Yep, as I suspected, the STK412-430 needs to be replaced. That is the most common failure part. Try replacing that and your problem should be resolved.

Dan

Sep 08, 2008 | JVC MX-GC5 CD Shelf System

2 Answers

Protect problem


I'm not really familiar with your specific model, so I don't know what the output stage looks like. I'd guess that this unit has a large black 'amp-pac" for the amplifier section. This should be attached to a heat sink in the rear of the unit. Look to see what the markings are on that part. I expect to see STKxxx. Can you post that here?

Thanks,
Dan

Sep 08, 2008 | JVC MX-GC5 CD Shelf System

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