Question about JVC MX-K30 CD Shelf System

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"prtected" showing in the display pannel

System showing protected, i unplugg the speaker but still showing the same

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Re: "prtected" showing in the display pannel

Like I've posted before, if it does that still after having unplugged the speakers, it's because there is a component inside that is grilled, or a short in the Speaker output section.. If you know electronics, you can open it and look, but I'd recommend getting it repaired by a professional, cause this system's amplification system could shock you real bad if you touch a bad thing, even if unplugged, Or just get a new system, that's what I'm making since I have a few problems with mine.. It has done it's time!

Posted on Oct 11, 2008

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This set volume increse for 14 point. but system is off. then display showing there protect. how relese to protect.

Normally amps go into protect mode when a short circuit is detected. Check all speaker wires for faults or bad connections and the speakers themselves. If it does this with no speakers on, check the main power amp inside for short circuited parts.

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You have a speaker wire crossed or otherwise short circuiting the system. It's protecting you from blowing your speakers. Go back and double check your wiring.

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Protect comes on why

Protection display will come over this type of set, when it is overloaded or system confused condition. Just unplug the device from AC mains socket and replug it after 4 to 5 minutes, and see whether it shows any protect display. If it shows it again, just disconnect the output loads, ie, connected speakers, and check. Again it displays 'protect', the internal circuit, especially the output amplifier circuits has the trouble, and the system need service. if it does not show protect display, after disconnecting the speakers from it, check the speakers or its connecting wires for damage. OK.

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Seems that the display is faulty and should be replaced as a whole assembly. You can check if the linking cord is faulty and if the power supply to the display is correct.

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Hi Lois,
Stereo sytems have a protection circuit that alerts you by displaying "protect" when there is a electrical short circuit detected in the system, the most common short happens in a speaker, try disconnectig the speaker wires of both speakers(all speakers) at the back of the system, then play the CD or cassette player(although you will not hear anything with the speakers disconnected) and see if the unit goes into "protect" mode if the problem is still present then you have an internal short circuit and the system will need to be sent in for service or replaced(depending on age,repair costs). I would not recommend investing more than $80 into repairs. Now, if the unit does not go into "protect mode" then one of the speakers or speaker wires is shorted,be sure you check the conndition of the speaker wires before you replace the speakers, then you can replace the speakers(in a pair) and you should be back up and listening! Good luck and Merry Christmas !

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Have you unplugged it from wall since ?
and, do you know if maybe the speakers are blown?
Bad speakers will make it stay in "protect"
Try other speakers after the unplug-plug back in routine.
Try the Denon website for a manual

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That could meen that something is improperly connected. You should try to disconnect everything, and then reconnect it step by step.

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System keeps sayin protect

The word PROTECT appears because there is a short. It can be in your speakers, try running it without the speakers plugged, or look if the wires arent shorting. If it stil ldoes that, its cause there is a short in it, from the output section. The system does that to prevent from damaging the electronic components inside.

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