Question about Sony Audio Players & Recorders

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How do I get my sony reciever STR-K790 out of protection mode. I changed the fuse plugged it in then turned it on and it says protection

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Try unplugging speaker wires from unit then power on. If it still says it u have an internal short. If it doesnt hook one speaker up at a time and see if it says it. Might be bad speaker or wiring.

Posted on Mar 15, 2019

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Posted on Jan 02, 2017

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SOURCE: I NEED INSTRUCTIONS ON HOW TO CONNECT ALL COMPONENTS TO THE SONY STR-DE598 RECIEVER

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Posted on Dec 23, 2007

  • 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

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

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-D611 receiver goes into

the protect is blinking

Posted on May 02, 2010

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I have an old 5 in one reciever sony; i dont see any fuses and my problem is that after turning on it goes to the protect mode flashing prptect. i disconted the entire reciever so i know there are no...


No reset will help this. The problem is an internal short most likely in in one of the amp circuits. This is a relatively simple repair for a service shop. Expect a parts cost in the $40 range. Add in the local labor rate for the total repair cost.

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You might be trying to push it too hard, or you might have a short somewhere. Disconnect everything from the reciever except its power cord and turn it on. If it still goes into protect mode, then try to find a reset switch (not sure if this is on the Sony, some recievers have them). If it's NOT in protect mode, then you had a speaker wire shorting out on the back. Make sure that you don't have any stray wires when you connect the cables on the back of your receiver. It only takes one strand of copper to short out the amp section. If that doesn't work then pull the top cover off and chech the fuses out. One of them might be blown.

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

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