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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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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 & Video Receivers

1 Answer

When I turn on the player...the "PROTECT" message comes up... I would like to know how to start this player...or how to bypass this message so it pplays. Hope somebody out there knows the...


protect means that the speakers are improperly hooked up or just not compatible with the amp.

ensure that the speakers are 8-16 ohms, that no wires are crossed, and no wire strands are loose, which could touch and short. a 4 ohm speaker or a short in the wiring is almost always the cause of a protect error.

if all of this is checked, and it still says "protect" then it is fried.

Nov 06, 2010 | Sharp Audio & Video Receivers

1 Answer

The sytems says protect


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 (like squashed or rodent damage).

Mar 12, 2010 | Denon AVR-1100 Receiver

1 Answer

My reciver says: protect


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 short.

Mar 01, 2010 | RCA RT2400R Receiver

1 Answer

My onkyo receiver say protect


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 (like squashed or rodent damage).

Jan 29, 2010 | Onkyo TX-8011 Receiver

2 Answers

Receiver turns off shortly after powered on & displays "PROTECT"


are any other devices sitting on top of this unit? if so it could be an overheat.

If you have pets make sure the wires are not chomped on this can cause a fault.

Also make sure you have nothing other than the factory default speakers hooked up to it.

here is what the users manual says
im going to sum it up for ya. if it says protect that means you have a short circuit please unplug the unit resolve the short circuit and plug back in....... here is the link To the users manual



http://www.docs.sony.com/release/STRDE485.pdf

once it is opened as a PDF document go to the search/ find area and type in "protect" and it will say the same thing.

somewhere you have a short your going to have to follow all the wiring again and look closely

Jun 01, 2009 | Sony STR-DE485 Receiver

1 Answer

Kenwood Amp blinking Standby indicator light


Hi fuxsiloh.

It sounds like you have eliminated all the things that could generate this symptom that are external to the amp. It is most likely that there is an internal problem that is causing the amp to go to protection mode. A power supply failure(maybe a fuse) is the only really user serviceable part inside the amp. Perhaps check for failed fuses, replacing any that may have blown with exactly the same type. BE SURE TO UNPLUG AT THE WALL FIRST:)

Is the amp still under warranty? If so, then returning it to a Kenwood service center is the shot. If you want to have a go at repairing it, I can talk you through it, but some experience with this sort of thing is very necessary. Good luck

regards
Graeme

Apr 06, 2008 | Audio & Video Receivers

2 Answers

SONY STR-DE675 RECEIVER


check the speaker's connections, I got them message when a speaker wire was unplugged and plugged back in while the unit was powered on

Oct 02, 2007 | Sony STR-DE675 Receiver

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