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I have a Kenwood M97, the amp (A97) displays a message saying "PROTECT" - according to the manual this means the speakers have short circuited. I have checked the speaker cables and all is where it should be. If you cannot find a solution, many thanks for your assistance anyway.

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  • fimi Jun 06, 2008

    Same thing. Tried to vacuum the outlets. Nothing. Wires are ok and receiver even gives the message when non speakers connected!

  • wi11i4m Jun 21, 2008

    i have the same problem, did you fix it?

  • yormieso Jan 11, 2009

    I bought my unit in 1994 and has been working fine till recently when the amplifier showed "protect" and nothing have tried work. Is there anybody out there who has solved this problem.

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I HAVE A M97 MY FATHER LEFT THIS TO ME, THE ONLY THING IS I HAVE NO LEADS? ANY HELP?

Posted on Aug 10, 2010

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Had the same prob its the transisters in the amp had mine done cost 75 quid roughly

Posted on Mar 10, 2009

Ich habe leider das selbe problem

Posted on Nov 10, 2008

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1 Answer

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

1 Answer

How do I get out of protect mode on Kenwood. Kdv-415u?


This is what it says int he owners manual.

PROTECT (Blink): The speaker wire has a short-circuit or touches the chassis of the vehicle, and then the protection function is activated. Wire or insulate the speaker cable properly and press the reset button. If the "PROTECT" code does not disappear consult your nearest service center.

Mar 11, 2011 | Kenwood Car Audio & Video

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

1 Answer

My kenwood kdc-x493 is saying protect can you help me fix it


sounds like a shorted speaker wire somewhere...behind the radio disconnect one speaker at a time until the radio no longer displays that message... if you disconnect all the speakers and the radio still displays the message.. it may require service

Aug 24, 2010 | Kenwood KDC-X493 Car CD/ MP3 Player

1 Answer

Kenwood KDC 241 SA car radio 'Protect'.


you could have a shorted speaker wire, a blown speaker; or the output ic in the deck itself could be bad.

Mar 03, 2010 | Car Audio & Video

1 Answer

Its in a company truck and it says Protect just keeps flashing that


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, or a bare wire touching the body of the car

Jan 12, 2010 | Kenwood KDC-MP205 CD Player

1 Answer

Kenwood kdc-bt742u flashing protect and no sound


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, or a bare wire touching the body of the car

Dec 17, 2009 | Kenwood KDC-BT742U

1 Answer

MY KENWOOD CAR CD PLAYER IS SAYING PROTECT??


Hi,

Kenwood head units show "protect" when there's a problem with the speaker outputs. This might 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 in normal mode the next time you turn it on.

If it's staying in "protect", then you'll definitely have to remove the stereo and do some troubleshooting 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. Turn 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. Turn it on again and see if it displays "protect".

If it works with a single speaker connected, keep re-connecting the others until you identify the speaker that's causing the problem. There may be a wiring problem or defective speaker in that location.

If it displays "protect" with a single speaker connected, then disconnect that one and try a different one. If all the speakers cause a "protect" mode, then you're probably back to a defective head unit, unless your friend managed to blow all your speakers at once.

Thanks,

Dec 09, 2009 | Kenwood KDC-319 CD Player

1 Answer

Protect error message


when the speaker wirer has a short circuit or touches the chases of the vehicle activates the protect function. so you need to get it serviced or do it your selves.Read the manual. http://www.kenwoodusa.com/UserFiles/File/UnitedStates/Consumer/Manuals/kdv415u.pdf

Aug 11, 2008 | Car Audio & Video

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