Question about Sony STR-DE425 Receiver

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Sony STR-DE425 - with no speakers connected, goes into "protect" mode after a few seconds. No stray wires across speaker terminals.

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6ya6ya
  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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  • 11 Answers

SOURCE: stuck in protect mode

Speakers shorted out, blew a fuse. Replace the unit or (cross your fingers and) open up the box and find the blown fuse.

Posted on Dec 05, 2007

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The Machine
  • 788 Answers

SOURCE: Protection Problem with Sony STR-DB780 AV Amp / Sony SA-VE535HS speakers

How have you checked for shorts in your wires? Did you use a multimeter? Test the resistance of your new wires compared to the old wire, should be close to the same and next to nil on the same wire but if you don't get infinity between pairs then you have a short.

About your second problem, what kind of connection are you using for your TV sound? Sounds like it's a digital connection but is it coax or optical? Sounds as if it loses sync with your signal and has to resync. If you are using optical you may have a bad cable if you are using coax the cable may be picking up interference from something or the cable may be bad.

Posted on May 22, 2008

  • 3 Answers

SOURCE: code for sony receiver model str d565 protect mode

If you need support you can log into:
http://esupport.sony.com/US/perl/support-contacts.pl?mdl=STRDG510

for free tech support on sony chat line

Posted on Jun 02, 2008

SOURCE: Sony "Protection" mode - STR-DE725

My sony used to do that to umm cant remember the model but yeh i could play it at low volume but as soon as i turned it up it would start clicking and telling me to turn of the power...

I resolved it by checking every cord connected to it, it turned out that because I connected two speaker cables together i didnt seal it properly and they were touching this was making it go into protetion mode.

Posted on Jun 10, 2008

marsrover
  • 682 Answers

SOURCE: STR--DG910: no rear speaker sound, no center speaker sound

if you confirmed all connection repeat your speaker setup.

Posted on Aug 02, 2008

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1 Answer

Sony str-k1000p wen i switch it on it flashes protect and continues to jus flash protect,and no sound or anything can be done,also wen powering on the second click takes a while after the first click


If you've made sure no stray strands of wire are crossing from the red connection point to the black it may be a problem in one of the speakers. disconnect them at the receiver, one by one, until the problem clears. If you're seeing this with no speakers hooked up the amp needs repair.

Oct 04, 2015 | Audio Players & Recorders

1 Answer

Str-de310 goes to protect mode with nothing hooked up to it except the power


Speaker positive and negative terminals are short circuited, carefully inspect the back speaker terminal if a small single strand of a wire causing this.

-SS

Oct 18, 2013 | Sony STR-DE310

1 Answer

To fix cpu on protection mode


I am highly skeptical that the CPU is the problem; protection mode is designed for protection of the amplifiers.

Use an artists brush to remove any dust and grime off the voltage rails and heat sinks. Reinstall the CPU and the chassis cover. Turn your attention to the rear connector panel; check for any broken or loose speaker terminals. If your speaker wires are still connected look for any stray wire strands and pull them off or bend them away from the connector panel. Check the connection for tightness, or simply disconnect any corroded wiring that you may not be using a banana or spade connector with and clip and redress it. Perform the same inspecting and maintaining procedures on all of your speaker channels.

When placing the receiver it must also have adequate air flow around it. Anything you can imagine that would allow the unit to retain heat increases the chance of it getting it into protect mode for thermal protection. Out in open air is best.
When the receiver is properly positioned and all connections are secure, power it up; it will likely still be in protect mode. If so, press and hold the power button down until the unit "clicks" inside the chassis; this takes approximately 15 seconds. Protection circuit is reset and you can now operate the receiver.

Feb 21, 2012 | Sony STR-DE597 Receiver

1 Answer

When I turn the unit on it will stay on for a few seconds then goes to protect mode. any ideas?


http://www.retrevo.com/support/Sony-STR-DE325-Receivers-manual/id/387bh941/t/2/

See page 17.

Disconnect all speakers and see if that helps. Shorted speakers or wiring will cause this. If it still does it a trip to a hands-on tech is called for.

Dec 23, 2010 | Sony STR-DE325 Receiver

1 Answer

My receiver clicks on a off randomly.


Hello Fixya customer,

Thank you for your question.

Are you getting on the display, possibly a "P" or "Protect" that indicates it is in the protect mode?

Hitting the top of the receiver indicates a possible intermittent component or board connection. The receiver will shut down when the Microprocessor receives various fault conditions, including shorted speaker and wires, but if it develops an internal fault it will also shut down to protect itself and the speakers.

Remove all speaker wires and inspect th terminals for any stray wires shorting the terminals.

If it still shuts down, then a professional servicer would be required.

Thanks for using Fixya, and if I can help you further, please let me know.

May 01, 2010 | Sony STR-DE545 Receiver

1 Answer

Sony STR DE 197 Reciever with No Sound


I have the same unit. My best recommendation would be to remove all speaker wiring, and try new wiring with another pr of speakers,since the "outdoor " speakers were rained on. the protect mode that the unit went into sounds like it did because the speaker outputs were shorted due to the rain, so ensure that the speaker output terminals are not shorted and dry...also see if output is still availalable at the headphone jack...if it is, the pre-amp section is still good , in which case the protect mode and no volume output out of the speaker jacks may mean that youve blown the ouput trasnsistor finals.
I hope this helps.

bobbymaximus

Jul 28, 2009 | Sony STR-DE197 Receiver

1 Answer

Protection error


Your speakers or the wiring to the speakers shorted out, and a fuse inside of your receiver is blown. You can purchase a new unit or attempt to replace the fuse yourself.

Nov 24, 2007 | Sony STR-DE425 Receiver

1 Answer

Stuck in protect mode


Speakers shorted out, blew a fuse. Replace the unit or (cross your fingers and) open up the box and find the blown fuse.

Nov 23, 2007 | Sony STR-DE425 Receiver

1 Answer

Goes immediately into protect mode


Yep. The wiring to your speakers or the speakers themselves have shorted out. You have a blown fuse. You'll need to either replace the unit or attempt to replace the fuse yourself.

Sep 10, 2007 | Sony STR-DE425 Receiver

2 Answers

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


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:)

May 01, 2007 | Sony STR-DE545 Receiver

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