Question about Sony Audio Players & Recorders

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I have a Sony receiver model Str - de 435 it constantly flash Protector and I tried everything to fix this any ideas

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The protector indicator usually indicates that one of your amplifiers has shorted output transistors. This is not a user repairable problem and the amp will have to be taken into the shop for service.

Posted on Apr 02, 2015

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Check speakers and speaker wires for issues. Disconnect BOTH speakers and check on all sources (DVD, CD, MP3, etc) with headphones. If you still have no audio and/or protector issues then it's time for a repair shop visit.

Posted on Apr 01, 2015

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6ya6ya

6ya staff

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SOURCE:

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Posted on Jan 02, 2017

Anonymous

SOURCE: protector mode SONY STR D1011S am fm receiver

I've had this happen, it's when you have speaker wires crossed.....

Posted on Sep 22, 2008

renosean

Sean Johnson

  • 492 Answers

SOURCE: receiver goes into protector mode

Nope, power supply it would not even power up.  The capacitors are fried

Posted on Jan 04, 2009

Anonymous

  • 1 Answer

SOURCE: Protector flashing on Sony AV receiver--Model STR-DG600

Me reicever rite protect some time ,i put the sytem off and a start again

Posted on Jan 25, 2009

David S.

  • 506 Answers

SOURCE: Own a SONY 7.1 STR DH800 receiver, how do I fix

There could be a number of issues wrong with this unit. If you have removed all inputs and speaker outputs and the unit still goes into protect you could either have a problem with the switching power supply or a shorted output stage. Both would require a trained technician to troubleshoot and repair.

Posted on Feb 11, 2010

smarthome2

Frank Fulton

  • 1114 Answers

SOURCE: flashing protector code 22

The most common problem found on FixYa for Audio Video2_bing.gif Receiver's is:

My receiver say's "Protect" or turns on then off. What's wrong? Seven times out of ten it is a shorted speaker or speaker wire. To determine your exact problem, the first step is to disconnect all speaker wires "at your receiver" Next: Turn the receiver back on. If your receiver still says "protect" or turns off, it needs to be serviced. If your receiver stays on; reconnect your speakers one at a time and power back up after each speaker. You may find that after reconnecting all speaker wires it works! Most commonly the small braids of wire from the + to the - have touched and have caused the problem. In some instances, you noticed the problem only when turning the volume up. either way, make sure the exposed wires to your receiver are no longer than 1/2" long and are completely under the screw down terminal or slide in. When you've found the wire or speaker with the problem, your receiver will go back into "protect" At this point, disconnect the wire from the speaker at the speaker that may be causing the problem then test again.* Note* Make sure speaker wires do Not touch each other as this Will cause a short! If you turn the receiver back on and it stays on, you now know the problem is in your speaker itself. To test your speaker, you will need a multimeter. Set it to ohms resistance and touch the speaker terminals, if there is a short internally the meter will read "1......" If it's an analog meter, it will peg to the right. There's your problem. Now, within any speaker there are quite a few possibilities as to what could be causing the problem. Most common is a blown coil and the speaker needs to be replaced. Some speakers have internal crossovers (usually floor standing speakers) and may have a shorted or burnt board (usually very visible brown burn marks on the board) and can possibly be repaired if your handy with a soldering iron. Now, if you disconnect the speaker wire at the speaker and it still says "protect" Check your wire for the obvious cut or nail thru the wire if possible. If your system has wiring that runs behind walls, you may need to use your meter again. Disconnect the wire at both ends, keep the ends separated, put your meter on ohms resistance and touch probes to the + and - wires at one side. If the meter pegs to the right or reads "1...." the wire is shorted and needs to be replaced or repaired at the short. Hope this helps.

Posted on Jun 03, 2010

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