Question about Sharp XLDV60H Shelf System

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Toshiba home theater SD-KT50SU shuts off "PROTECTION"

AFTER TURNING IT ON THE UNIT SHUTS DOWN AND A MESSAGE APPEARS "PROTECTION'" This has happened before and when I tried the system after returning home from travel it worked after I reinstalled the plug into the receptacle.

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Ok what this means is that some wires are touching in the back of unit causing a short (your system is protecting itself) look for wires touching and make sure its hooked up right
This should fix ya!

Posted on Dec 13, 2008

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Why won't it power on .it just stays in standby mode .


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Dec 25, 2015 | Audio Shelf Systems

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JVC TH-V70 Shuts Down


Hello
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

I own a Aiwa NSX DS50 Home Theater Audio System. It hasn't worked for some time now. As soon as i turn the system on it shuts off completely. About ten seconds after turning off the red light next to...


Generally speaking, an amp attempts to protect 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.

Jun 23, 2011 | Aiwa NSX-DS50 Shelf System

1 Answer

BeoSound 9000: Similar problem, AND no AM/FM/Aux either


sorry nothing straightforward springs to mind.A dealer repair seems the only solution.

Sep 16, 2009 | Bang and Olufsen Audio Shelf Systems

1 Answer

Everytime i turn on the stereo it shuts off an says protect


When sound system shows Protect that means it got problem in amplifier section and protection circuit is activated that shuts down system in safety. Qualified tech will fix it.

Jul 31, 2009 | JVC HX-C6 Shelf System

1 Answer

My home theater receiver totally shuts off when the sound level is turned up above 2


bad speaker polairity or crossed wires
cats like chewing wires so do pupys
and a lot of other small vermin like wires too rats mice dogs cats
check your wires then check the polairity failing that check unit 4 over heat
to check wires disconect 1 speaker at a time turn on reciever and turn it up
failing that check unit for in operational fan in rear of case

Jul 31, 2009 | Audio Shelf Systems

1 Answer

Jvc protect


Protect mode will kick in whenever a fault is detected.

You get the unit not powering up, and sometimes you hear a clicking noise, that is the protection switch that keeps shutting down the unit.

Causes that can start protect mode are:

Electrostatic harges on internal circuits.
Leave the unit unplugged for power for one hour or so, this will allow discharge.

Bad speaker wiring.
Check speaker wiring, try unplugging and plugging back, or start after removing one speaker at the time.

Internal fault.
Internal fault is the natural cause for protect mode. If all the above did not work, then the problem is a blown component or an internal fault. In this case the unit must be taken apart , tested and repaired by an experienced person.
If the unit is less than one year old, or if you want to get service, call Sony at the phone number listed on the product documentation.

Regards.

Feb 28, 2009 | JVC FS-S77 Micro 5 Disc DVD Audio/Video...

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Aiwa compact disc /2disc player


It doesn't matter what you do, that the system will power down after being on for exactly a minute? Or do you find that when you try using it a few times in a row that the shut off happens a little sooner each time? Did this suddenly start happening or was it something that began occurring gradually (meaning it would power on for an hour and then auto shutoff)?

It sounds to me like some electrical component inside is failing and that the self-protection circuitry design is kicking in. Or it could be that the power transformer is worn out and can't maintain power for more than a minute.

Keep in mind that repairs to these older electronics can end up costing as much as it would be to buy a new unit (and new units offer much more technology anyway).

Dec 20, 2008 | Audio Shelf Systems

1 Answer

Protection displayed and shuts off


The protect message indicates that the output amp section has a problem. Normally this requires the replacement of the output transistors or the output amp pac. Expect the repair cost to be about $20-$60 for parts plus the local labor rate.
Dan

Mar 22, 2008 | JVC HXC6 500-Watt Stereo System with 5-CD...

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