Question about Sony STR-DE545 Receiver

2 Answers

It works a few minites,then stops and displays "Protect".

Every time I turn it on,it works for a few minites,then stops and displays "Protect".I notice that when it stops,there is a transister which is surounded by a "U" aluminum plate gets hot quickly.

Posted by on

2 Answers

Re: It works a few minites,then stops and displays...

This happens when you cross the speaker wires. the amp goes into protection mode. i would check the back for stray strands of wire touching. if thats not it it may be internal.

Posted on Jul 16, 2007

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 56 Answers
Re: It works a few minites,then stops and displays...

Your complaint isn't a problem at all. This is a usual characteristic of the relevant amplifier. The protection mode comes on when the main volume/bass/treble or whatever is too loud. Unfotunately, you can not overcome it. But, as they always say: It's a Sony:)

Posted on May 01, 2007

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

Why did amp indicate error and turn off?

SONY ' eSupport - PROTECT or PROTECTOR is flashing in ...
Aug 15, 2015 - Turn off the home audio device, and remove all speaker wires from ... If a cord is frayed or in contact with another terminal, an error will occur.

How to get my receiver to stop flashing protected - Sony's ...
Sep 15, 2013 - intermittent video ... How to get my receiver to stop flashing protected ... is below the rated impedance range indicated on the rear of the home audio ... D.If the home audio device still displays a PROTECT error or does not turn ...

My AV receiver says OVERLOAD and shuts off, what should ...

Dec 26, 2015 | Pioneer Audio & Video Receivers

1 Answer

Trying to hook up sony s-master with componet cables an the s-master displays on the display ''PROTECT UNPLUG'' however with nothing plugged in the s-master, works fine

Check speaker wires, any wire seems shorted and causing Protect Unplug error message in receiver.
Good way to sort out bad wire is plug one speaker at a time, turn On receiver check, turn Off, then plug next speaker wire until you find out what speaker wire activates protection circuit of receiver.

Jan 01, 2011 | Audio & Video Receivers

1 Answer

"PROTECT" displays after I switch ON the power.

there is short inside, usaull with copacitors u might want to have it looked at

May 27, 2010 | Onkyo TX-DS787 Receiver

1 Answer

Why is it showing "protect" ?

You overrided your system and now it autoprotects itself so it won't get damaged. (solution) try to rewire your system (remove all cables and wait a few minutes and connect it all again.

Jan 16, 2010 | Audio & Video Receivers

1 Answer

''Power off ''flashes ten times after the receiver is turned on.

Most often it will require an output IC, but I have seen it be a bad ground or a transistor in the protect circuit.

Oct 16, 2009 | Optimus Audio & Video Receivers

1 Answer

'protect' blinked and then no sound or display

Disconnect the outside speakers "at the speakers" then turn back on. If the problem persists, disconnect the speakers at the back of the receiver and try again. If the problem stops "at the receiver" check your terminals and make sure no braids are touching each other. If the problem stops when you disconnect at the speaker, chances are good it's a bad voice coil from moisture. Most "outdoor" speakers with a brand name on them have a pretty good warranty. Good speakers have a 10 year warranty and the manufacturer will replace. If you still have an issue, post a comment and I can help you some more

Jul 26, 2009 | Sony STR-DE925

2 Answers


This generally means you've got a short somewhere, and the received is trying to protect itself.

My suggestion is to disconnect all of your speakers at both ends, and reconnect them.

Most times this happens because a speaker wire is lose, and the positive and negative connections are touching each other, causing it to short out.

Mar 24, 2009 | Sony STR-DE485 Receiver

1 Answer

Onkyo tx-sr602 as soon as i turn receiver on it flashes protect

Does it display any message like "Protect" or something similar? Do you hear a relay click on then off?

Did the amp just not power up one day or did it stop working while you were listening to it? Finally, do you have teenage kids who might have been listening to your receiver and would have "neglected" to tell you that after listening to their music it suddenly stopped working?

It could be an internal fuse but chances are its something that requires a technician to repair (like the output transistors).

Dec 29, 2008 | Onkyo TX-SR602 Receiver

1 Answer

Display says Protect and doesnt work

the protection circut has kicked in and is stopping any further dammage
it will need to be looked at to determine the problem

Nov 01, 2008 | Kenwood VR-407 Receiver

1 Answer

Amplifier/receiver switches off systematically after a few second of use

Sounds like a bad output channel is causing it to go into protect mode. Time to see a repair tech.

May 01, 2007 | Harman Kardon HK 3480 Receiver

Not finding what you are looking for?
Sony STR-DE545 Receiver Logo

Related Topics:

349 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Audio & Video Receivers Experts


Level 2 Expert

112 Answers

Cindy Wells

Level 3 Expert

4720 Answers

Pieter Vleeshouwers

Level 3 Expert

1327 Answers

Are you a Sony Audio and Video Receiver Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides