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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Re: STR-DE598

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

Re: STR-DE598

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

Posted on Mar 15, 2008

Re: STR-DE598

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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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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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?




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