Question about Onkyo TX-SV454 Receiver

1 Answer

Stuck in protect mode

Hello, My Onkyo TX-sv454 is stuck in protect mode. I opened case and I don't see any problems. Is it possible for me to reset it. Thanks

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 2 Answers
Re: stuck in protect mode

I believe protect mode is because you have the wrong impedence speakers, they are too low (4 ohm? 6 ohm?) it chols work with 8 ohm speakers

Posted on Dec 11, 2008

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

My ONKYO tx 8511 is protect mode How to reset

Hi Vinoth, if this has not been resolved I would advise you to disconnect the unit from the AC Outlet for at least an hour and then see if it is out of Protect Mode, Thanks, JT

Nov 19, 2015 | Onkyo Audio & Video Receivers

1 Answer

Protect mode on my onkyo sv515proii what does it mean?

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.

Check for loose speaker connections at the speaker as another possible root cause for intermittent shutdown.

Jul 30, 2011 | Onkyo TX-SV454 Receiver

1 Answer

When i turned on speakers both a and b the protect message came on--receiver is now totally disabled. help.

This means that you have a problem with the speaker outputs.
-Try turning the unit off and unplugging it.
-Disconnect all of your speakers.
-Plug it back in and turn it on.
If it works, check you speakers and wiring for shorts.

If it still shows protect then you probably have a blow output amplifier and it will need repair.

Mar 15, 2011 | Onkyo TX-SV454 Receiver

1 Answer

So what do i do if when i turn my onkyo tx-sv454 receiver on it says protect and then shuts off? How do i fix that or get around it? please help me....

I don't think you can fix it, unless you're skilled with electronics. Possibility that something has occurred internally with a circuit board etc so the system shuts down in order to protect itself from catching on fire etc. Get it services. Might not be too bad of an issue, but certainly not a bypass.

Mar 02, 2011 | Onkyo TX-SV454 Receiver

2 Answers

How do I reset from the amp protect mode Onkyo receiver TX-SR600?

How do I reset my amp / receiver from protect mode ?

May 07, 2010 | Onkyo TX-SR605 Receiver

1 Answer

Surround mode is set to OFF

I was able to solve this problem by using the "A" speaker jacks and eventually I pushed the right buttons to get the Surround mode to turn ON. I believe it was when I hit the Parameter Selection button that allowed the surround mode to become active.

Jan 18, 2009 | Onkyo TX-SV454 Receiver

2 Answers

Onkyo TX-SV444 problem

the shorted spkr wires probably fried the putput transistors in that channel.  Do you know how to use a Fluke  test meter on diode test

Dec 31, 2008 | Onkyo TX-SV454 Receiver

3 Answers

Onkyo tx-sv535

when the apm in protect mode means it is problem in inside.don't trow it please repair it n use

Jan 02, 2008 | Onkyo TX-SV535 Receiver

1 Answer

Onkyo tx-sr800 PROTECT mode

Hold video1 and press speakers A button, it will say "clear" If the message protect appears again, then its service time.

Aug 28, 2007 | Onkyo TX-8511 Receiver

1 Answer


You need to replace the internal fuse.

Aug 25, 2007 | Onkyo TX-SV454 Receiver

Not finding what you are looking for?
Audio & Video Receivers Logo

Related Topics:

1,074 people viewed this question

Ask a Question

Usually answered in minutes!

Top Onkyo Audio & Video Receivers Experts

 Mike M
Mike M

Level 3 Expert

3320 Answers

D. E. Hev

Level 3 Expert

1059 Answers


Level 3 Expert

2963 Answers

Are you an Onkyo Audio and Video Receiver Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides