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The radio is turning off and there is a message: system protect.

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The first thing you need to do is dis-connect all the speakers and then turn the unit back on. If it stays on and does not give the same error message, you may just have a bad speaker.

You can then plug one speaker back in at a time, turning the unit off in between each speaker check. Once the unit goes into system protect you have just found the bad speaker.

If the receiver once again goes into system protect without any speakers connected, you have an internal amplifier problem. That is something that would need to fixed by a professional audio technician.

If you have some experience with electronics and good soldering skills, I can help you troubleshoot this receiver. But if not, it is a very bad idea. You can easily cause even more problems than you started with. Even some very serious problems.

Let me know if this is helpful to you, and a good rating is always appreciated if it was.

If you need more help feel free to ask..

Posted on Jun 23, 2008

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My stereo sysytem is a mini stereo: serial number 10200055. It currently says "protect", what is this and how do we return our system to normal operations?


Hi there,

When the word PROTECT appears on this display, this means the unit has detected a critical fault which could potentially cause harm to your stereo system.

The most common cause is a short circuit somewhere - something even as simple as loose speaker wiring could cause a short, triggering the Protect message.

You will need to determine if there is a possible short somewhere, so I recommend you start by firstly turning power OFF, disconnecting all speaker wires, then turn unit back ON.

Operate the stereo (without speakers) and turn volume up:
  • If Protect message appears when turning volume up, then stereo unit itself has an internal fault
  • If no Protect message appears, then suspect the speakers may be causing the issue.
  • Reduce volume and turn unit OFF
Re-connect speakers (ensure the connections are secure), turn unit ON:
  • If turning volume up triggers the Protect message again, there is an issue with the speakers or connections

Hope this helps.....

Sep 04, 2011 | Kenwood Audio Players & Recorders

2 Answers

When i turn on the power it reads protected and turns off on its on


try unplugging the speakers and then turning it on...if the protect goes away then you have a bad speaker or wiring...if it still displays the same message then the amplifier output may be blown and will need to get it repaired at a shop

Feb 02, 2011 | JVC HX-D77 Shelf System

1 Answer

My stereo says" protect" everytime i turn it on. can't get anything else.


Hello grammagrisbo, hi your Kenwood head units will show "protect" when there's a problem with the speaker outputs so check to see if the impedance load meets your radio, 8ohms or 4 ohms?. having parallel two speakers on a single channel may cause this dilemma. This might also mean a shorted speaker wire, a blown speaker, or an internal defect in the head unit. Once the condition that's causing the "protect" mode is fixed, the CD player should be back to normal, the next time you turn it on.
If it's staying in "protect", then you'll definitely have to remove the stereo and do something to fix it. Many car audio stores will do system troubleshooting, for a fee. If you want to do it yourself, here's what you need to do:

Pull the Kenwood unit from the dash and disconnect all the speaker wires. power it on and see if the "protect" message displays. If it does, the stereo has an internal defect and will need to be serviced. If it doesn't, then turn it off, and re-connect one speaker only. Turn it on again and see if it will displays "protect" message.

If the radio works with one speaker connected, connect the other speaker to the second channel, you may have now the idea where the problem begun, you will identify the speaker that's causing the problem. There may be a wiring problem or defective speaker in that channel.

If it displays "protect" with a single speaker connected, then disconnect that one and try the other one. If all the speakers cause a "protect" mode, then you're probably back to a defective head unit.

Aug 31, 2010 | Kenwood Car Audio & Video

2 Answers

My HT-TX75 DVD flashes a message


First thing to do is disconnect all your speakers at the back of the receiver, then turn it back on. If it does not go into protection, post a comment and I can walk you thru troubleshooting. If it still goes into protection, your unit needs to be serviced. Hope this helps

Jun 24, 2009 | Electronics - Others

1 Answer

Pushed power protect


speaker protection turned on.it can be happend because of bad power amlifire section.can you remoove the powe ramp board with large heatsink.its very easy to repair.and i can help.
nuwan

Jan 09, 2009 | Sony Multi-System Mini Hifi Systems / DVD...

3 Answers

Hxd7 protect


Don't buy a stereo that prints up 'PROTECT MODE' and then does not tell you how to cure it. This is a good way of getting people to buy a new one only live and learn do not buy the same manufacturer again. I have a nice just out of warrenty JVC that when I switch it on sits there grinning at me with 'PROTECT MODE' showing. Yes I have entered cash protect mode and decided I am not going to buy another JVC.

Jul 26, 2008 | JVC HX-D7 DVD Compact Stereo Audio / Video...

2 Answers

Samsung dvd/disc protection


Try a hard reset: unplug from power source, remove all cabling and wait for 5 minutes before recabling.

If that fails, it is a logic board error, in which case you are probably better off buying a new device..

May 24, 2008 | Samsung HT-DS610 System

1 Answer

Protect mode


i try to turn the stereo on a message saying "protect" comes up and then it shuts off

Apr 28, 2008 | JVC HX-D7 DVD Compact Stereo Audio / Video...

1 Answer

Protect in dispaly


The word PROTECT displays when I plug it the unit. How do I fix it?

Dec 08, 2007 | Sharp Audio Players & Recorders

2 Answers

"Protect" message


It is most likely an amplifier problem. I had this problem before. It went into "Protect" mode and shut down. When I turned it back on, my left channel speakers made a buzzing noise and did the same thing again. I got it diagnosed at an electronics repair shop and they found that the two STK amplifier IC's were bad. One is about $106 and the second one is about $78. I got it fixed for about $200 and works basically like new again.

Nov 20, 2007 | JVC MX-GT88 CD Shelf System

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