20 Most Recent JVC MX-KA3 CD Shelf System Questions & Answers


The CD open/close button is the far right button of four beside the center control. It's marked with an up arrow. http://resources.jvc.com/Resources/00/00/33/76.JPG

JVC MX-KA3 CD... | Answered on Jun 23, 2014


Yes it can the blurb for it states: "Full-logic control, dual dubbing cassette deck with CD syncro start recording"

JVC MX-KA3 CD... | Answered on Mar 12, 2013


my remote wont operate the system--- have to unplug to get system to come on ---cd compartment wont open my [email protected] --502-802--9553

JVC MX-KA3 CD... | Answered on Jul 10, 2011


probably your stk output ic is faulty.....................................nacho

JVC MX-KA3 CD... | Answered on Mar 12, 2011


http://www.retrevo.com/search?q=JVC+MX-KA3

Generally speaking, an amp protects itself from heat, shorts and overloads.


Overloads can be from excessive periods of high output 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 hands-on tech.

JVC MX-KA3 CD... | Answered on Jan 18, 2011


Protect mode is a special diagnostic mode that starts when a fault is detected.

When in protection mode the unit is prevented from starting by protection circuit, so to prevent further damage. the PSU will be forced to standby, and the unit does not wake up until the fault is fixed.

Check all wiring and connectors, a contact in speakers wiring or video connection cable can start protect mode.

Try unplugging power cable for one hour or so. then connect cable back and see if you get rid of protect state. Sometimes accumulation of electrostatic charges inside PSU capacitors can kick in protect mode. In that case unplugging the unit from main for some times can get rid of electrostatic charges, and reset circuits by draining power completely.
If that was the problem, unit will start normally when plugging back power cable.

If you do all the above and you still get the unit in forced standby, with protect on, then there is an internal fault.

In that case the unit must be disassembled and tested to find the fault.

If that is the case I suggest contacting the manufacturer at the number listed on the owners manual, or asking a quote on repair to a local technician.
Better ringing JVC at the number in the manual or at the contact on their website first.

JVC MX-KA3 CD... | Answered on Dec 03, 2009


his appears to be a very common problem here on the board. It means the unit has shut off the outputs because of either a bad speaker or shorted wire, or some failed part in the amplifier. If the trouble continues after you disconnect the speakers, the unit will require service to diagnose and replace the failed part(s).

I've never worked on this model, but in many brands the amplifier integrated circuit is a common failure. They are often not properly mounted for efficient cooling and burn themselves out. Another typical failure is some power supply part that is under-rated and just goes bad, and this is showing up as the protect failure.

Without a diagram and no direct experience, I can't suggest any specific action you could take, other than checking with a local shop for a repair estimate. (You might try contacting JVC on their website or by phone to see if they have any service bulletins. If something becomes a chronic issue, the manufacturer sometimes extends warranty service to cover the repair. Never hurts to ask!)

JVC MX-KA3 CD... | Answered on Feb 12, 2009


This appears to be a very common problem here on the board. It means the unit has shut off the outputs because of either a bad speaker or shorted wire, or some failed part in the amplifier. If the trouble continues after you disconnect the speakers, the unit will require service to diagnose and replace the failed part(s).

I've never worked on this model, but in many brands the amplifier integrated circuit is a common failure. They are often not properly mounted for efficient cooling and burn themselves out. Another typical failure is some power supply part that is under-rated and just goes bad, and this is showing up as the protect failure.

Without a diagram and no direct experience, I can't suggest any specific action you could take, other than checking with a local shop for a repair estimate. (You might try contacting JVC on their website or by phone to see if they have any service bulletins. If something becomes a chronic issue, the manufacturer sometimes extends warranty service to cover the repair. Never hurts to ask!)

JVC MX-KA3 CD... | Answered on Feb 12, 2009


Hi tammiedahmer ..to this problems have a sulution in the page 15.. of the INSTRUCTIONS..

I hope I have helped you .. even more ..

JVC MX-KA3 CD... | Answered on Dec 23, 2008


I have no Idea, I have My JVC system sitting in a closet. I got it in 2004, and It was working fine, and all of a sudden it stopped and went into protect mode. I have no idea what to do about it.

But this is what I did.

I unplugged it and I let it sit for 24 hours to see if it would Reset the microprocessor, that did nuttin'. So I took it apart ^_^ That was fun! and I checked all the wires for loose connections, and I made sure te cables were in there tight. My unit is a pretty old though, I have a surround sound system, but usually a good blast of canned air may clean the circuit board and the components.

Cheers!

JVC MX-KA3 CD... | Answered on Mar 23, 2008


I need a little help on this one. Did it go into protect after the move or was it in protect mode before? If it went into protect after the move, did it get dropped or roughly handled? Sounds like something got knocked loose in the move. You should be able to open the unit up and check the connections. Reseat all connection whether they look loose or not. Sometimes it only takes a very small bump to get the connector acting up. After reseating all connectors, if it still does not work let us know.

JVC MX-KA3 CD... | Answered on Feb 09, 2008


You've got a fried output no doubt. Need to go to the repair shop. Good luck.

JVC MX-KA3 CD... | Answered on Dec 06, 2007

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