Question about Sony STR-DE835 Receiver

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Sony STR-K740P goes into protect mode when turned on. I have nothing hooked uo to it. Its plugged in and thats it.

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5 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

tns_davao
  • 32 Answers

SOURCE: my reciever sony str-k740p reads (protect) and it

Grounded speaker wire check your lines going to the speakers

Posted on Jul 10, 2009

  • 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

  • 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

SOURCE: Sony STR DE-725 going into ''protection'' mode

Audio Amplifier IC damaged

Posted on Aug 23, 2009

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1 Answer

How do i reset a sony STR-K740P receiver??? - Sony Str-k740p Radio Receiver


Tuner reset
You can change the AM tuning scale to 9 KHz or 10 KHz. After tuning in any AM station turn off the receiver. Hold down the Preset tuning + and - ve together.
All preset stations will be erased when you change the tuning scale. To reset the scale to 10 kHz (or 9 kHz), repeat the procedure. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/

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

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My sony STR-DE695 flashes protect with nothing hooked up except the power supply. Is it a grounding problem, or something else?


if it is in protection mode with no speakers connected, then youve got an internal problem which will need repaired

Feb 23, 2010 | Sony STR-DE695 Receiver

1 Answer

When iturn on my Sony STR-DE325 it goes into protect mode


Try disconnecting all of your speakers, and then turn on you unit. If you have a defective speaker, or a short in your wires, your unit will go into protect mode. If your unit seems ok with the speakers disconnected, then turn unit off, hook up one of the speaker leads and try it. This way you can isolate the problem.......

Good Luck,

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You've blown it. It recognizes a potentally harmful situation and goes into protect mode.

Mar 15, 2009 | Sony STR-DE935

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Sony STR-D460Z receiver


A common cause are failures in the amplifier output stage, the drivers, and some of the support components. You will have to send the unit out for service.

Jerry G.

Feb 08, 2009 | Sony Audio Players & Recorders

1 Answer

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.

Nov 25, 2007 | Sony STR-DE725

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

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