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Sony receiver str-de-245 is in protection mode.

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6 Suggested Answers

  • 395 Answers

SOURCE: StR-DE945 stuck in auto protect mode

determin if the speakers are at fault first. un-hook them and turn on the unit if it stays on one of the speakers is bad. if it remains in protect, the output transistors are shorted. there are a pair for each output. they are located on the large heatsink in the center of the unit.

Posted on Jan 18, 2008

  • 1 Answer

SOURCE: Sony STR DB-930 Receiver jumping into protector mode

I went through the amp/receiver and used small star washers on all the grounding screws I could find including the one securing the transformer, cleaned dust off all circuit boards, checked output transistors and fuses, all OK.

Re Assembled unit and it worked OK.

I will buy a fan and fan it to avoid sourcing heatsinks for the previusly suggested IC's.

Thanks for the technical help, sure solved my problem.

Regards

Darryl.

Posted on Mar 13, 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

  • 92 Answers

SOURCE: goes into protect mode..

you probly have speaker wires arching. unplug them and replug thm in making sure no bare wire is showing

Posted on May 20, 2009

ginko
  • 19396 Answers

SOURCE: stuck in protect mode

Protet mode is a special diagnostic mode that starts when a fault is detected.

When in protection mode the unit is prevented from starting by protection circuit, so to prevent further damage.

Check the speakers and speakers wiring, a contact in speaker wires, or faulty speakers can send the unit in protection.

Try unplugging power cable for one hour or so. then connect cable back and see if you get rid of protect state. Sometimes accumulation of electrostatic charges inside circuit capacitors can kick in protect mode. In that case unplugging the unit from main for some times can get rid of electrostatic charges, and reset circuits by draining power completely.
If that was the problem, you will not get Protect when plugging back power cable.

If you do all the above and still get Protect, then there is a real fault.

In that case the unit may be disassembled and tested to find the fault.

If that is the case I suggest contacting the manufacturer at the number listed on the owners manual, or asking a quote on repair to a local technician.

Posted on May 29, 2009

SOURCE: Sony STR DE 485 is locked on Protect mode

Change the audio amplifier IC damaged

Posted on Jul 09, 2009

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1 Answer

Hi. my sony STR-DE 597 go in protect mode. how can I fix/repair this? Give me a tips.


protect mode means there is a shorted components inside your reciever it's probably the out put transistors take out the transistors and test it with a multimeter.

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Relay click and Protect display indicates that receiver got problem in output amplifier section and most probably output chips got defective. This kind of problem is not user level repair and local repair shop will help you to get it fixed.
Thanks.

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The digital sound is off after 1 houre str de sony str de 485


It sounds like the receiver is either failing or going into a thermal protection mode.

There should be NO reason why the input source (digital versus analog) should make a difference unless you play the digital sources obscenely louder than the analog ones.

If you suspect heat, you should be able to feel it.

Can you verify that the digital sources ONLY do this?

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Goes into protect mode..


you probly have speaker wires arching. unplug them and replug thm in making sure no bare wire is showing

May 17, 2009 | Sony STR-DG520 Receiver

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Help


check/replace your speaker wires. If a wire came loose, it will go into "protect" mode and shut down, to protect from a short circuit.

Jun 16, 2008 | Sony STR-DE525

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Protector mode..


Cambiale los IC de audio que esten dañados.

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