Question about Sony STR-DE598 Receiver

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STR-DE598 The reciever shuts off randomly and just before it shuts off the protection light comes on. Can someone tell me what is causing this to happen?

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  • Anonymous Feb 11, 2008

    my "protection" banner message appeared several times tonight and the system automatically shut down....I'm also interested in a solution

  • hitmanbesser Apr 30, 2009

    protect displays across the display. A few moments later it shuts down



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If you have the remote for it all you have to do is clear the memory shut it off then wait a little bit then turn it back on

Posted on May 11, 2013


We unplugged it for a week, and still persist to have the same 'protect' mode problem. Any insights?

Posted on Mar 15, 2008


Well usually the best thing to do is unplug the unit from any power and leave it for about 2 hours to reset. that is a common problem when the unit has been played at a high volume or the speaker connection are not tight

Posted on Feb 18, 2008

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1 Answer

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There is a defect that is causing the light to come on. It could be a bad output transistor or some other defect that produces excessive heat. The cooling fan could be at fault too.

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Your Protection System probaly come on for some reason,Sony Is Known for that problem, Check on your screen if a red lit warning Staying (protect) Is on.If there is, Try hiting the reciever on the sides or the top of the cover fairly hard when it is turned on, Some times this will work to turn the protect light back off, Sony is bad for there amps end recievers going into the protect mode,

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Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.

Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.

Check for loose speaker connections at the speaker as a root cause for intermittent shutdown.

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My ste-de 515 SONY reciever shows( protect) tried what i can, now at a loss can you please help me? THANK A BUNCH!!!!!!!!

Please see the link below for a generic explanation of protect mode. In regards to your specific unit, can you please update this with more detail about the symptoms? For example, does it enter protect at all times or only after being on for a while. Will a power off clear it for a short time?




Feb 13, 2011 | Sony STR-DE598 Receiver

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We have a sony reciever and when we turn the reciever on the woird "protect" flashes and the the reciever will automatically turn off. Please help!

This issue is usually caused by either an ungrounded plug or bad wall socket OR one or more of your speaker wires have exposed wire and may be making contact with each other or there is a break in the insulation of one of the wires between the amp and a speaker where it is touching metal somewhere.

Jan 20, 2011 | Sony STR-DE598 Receiver

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This can be as simple as poor connection on the display itself or a problem in the power supply. Look carefully at the connections for the diplay panel on the PC board attached to the front face of the unit. Specifically, look at the pins on either end. If those look grainy or have rings, then most likely the display is not getting powered. Resolder those pins and let me know what happens. That may resolve the problem.


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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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