Question about Sony STR-DE925

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No display, no sound

My STR-DE925's display has gone black and is not allowing any of the components (TV, DVD, VCR, etc.) to have any sound the individaul components are on and playing, but there is no sound.

Any suggestions?

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  • Anonymous Jun 04, 2008

    display has gone black

  • Anonymous Jul 16, 2008

    Same problem . arrive after the protec have no responding.

  • Anonymous Feb 12, 2009

    no display no sound just died when on

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1 Answer

Same problem. arrive after protec not responding

Posted on Jul 16, 2008

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Posted on Jan 02, 2017

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dunnbiker
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SOURCE: My STR-DE925's display has gone

So it's dead in other words.

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 'nekkid'. 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 another possible root cause for intermittent shutdown.

Posted on Aug 24, 2011

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My STR-DE925's display has gone black and is not allowing any of the components (TV, DVD, VCR, etc.) to have any sound the individaul components are on and playing, but there is no sound. Where can I...


So it's dead in other words.

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 'nekkid'. 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 another possible root cause for intermittent shutdown.

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