Question about Sony STR-DA90ESG

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Error code - protector

Sony stereo DA90ESG powers on but gives a 'protector' error. Any help?

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  • goedp Apr 20, 2009

    I have the stereo completely dis-connected from all components - and get this error.

  • goedp Apr 20, 2009

    Still no luck. (there is a secondary clicking (relay) post power up. first click when the unit is powered on and energizing, and sencond click when the PROTECTOR error comes up.



    1) I've opened the cover and pulled the connecters off PCB that go to the outside speaker jacks. (still errors)



    2) Held down the DISPLAY and PANEL UP/DOWN and got the CLEAR message, but still get the error



    3) I suspect it to be in the power amp unit, but do not know how to troubleshoot the power transistors (NEP250)

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  • 86 Answers

Try disconnecting all the speakers from the back and turn the unit back on. If the "protector" display goes away, turn the unit back off and reconnect one speaker. Turn it back on and check for "protector". Repeat.

If you find that one of the speakers causes "protector" to appear, you either have a bad speaker cable or bad speaker. Try swapping each of those out to see what happens.

Posted on Apr 20, 2009

  • 1 more comment 
  • OnlyOneN
    OnlyOneN Apr 20, 2009

    If you have all of the speakers disconnected from the back of the unit, check to make sure there isn't anything (such as a strand of speaker wire) shorting the speaker connections. If not, the receiver may need repair.

    Have you tried turning off the receiver and unplugging it? Plug it back in after a few seconds and turn it on to see if Protector re-appears.

    Sorry if this doesn't help.


  • OnlyOneN
    OnlyOneN Apr 20, 2009

    One more thing to try... with everything disconnected.

    1. Turn off the receiver
    2. Hold down DISPLAY and PANEL UP/DOWN buttons and press power.
    3. All Clear should appear on the screen.

    Let me know if this helps.


  • OnlyOneN
    OnlyOneN Apr 20, 2009

    Sorry, but I don't know much about internal components. If you get stuck, you could always find a local repair facility by going here:
    http://eservice.sony.com/webrma/web/inde...

    I wish I could have been more help. Best of luck to you!


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Posted on Jan 02, 2017

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sony DA90ESG I have a Sony Receiver DA90ESG i have it for a while and its one of the best receiver i ever come across. Never the less i was playing it the other day and i heard a pop in the front speakers i was using the MD moode witth regular audio cables. I notice some of the displaying light were dim like it was not getting enuff power. After i check the wires ect i turned it back on the display said ' OK ' It was ok for a while and then the other day i was playing it again and the sound went. The same display light was dim and the light on the volume went off but the display was up. I tried checkng the wires and everything seems to be ok. After i left it off for a while and turned it back on it played for a short time and then no sound. I saw an unusal display it reds ' AC-3 RF' when i put the recevier on tuner the sign comes of but still no sound. I turned it off again for a day and it start playing again but after 5 mins the sound went again and the same display comes up again AC-3 RF' Could you tell me if it some thing that iam not doing or should b doing, or should i give it out to be fixed. PS When the sound chips out and u try to open the lever it just go up and down repeatedly at a slow pace and wont close, but when the receiver starts to work the lever moves freely and closed itself. It seems like a power problem not sure but any help will be gratefull dont want to buy ny other recevier. Regards Desi Wilmot desilee2000@hotmail.com

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