Sony MHC-LX1000 Shelf System Logo
Posted on Apr 01, 2011
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My Sony stereo system keeps turning off ten seconds after i push the power button to turn it on and I have no idea whats going on with it.his problem has also just started. The type of stereo is a MHC-LX10000

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  • Master 8,546 Answers
  • Posted on Apr 01, 2011
Anonymous
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Joined: Apr 02, 2009
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Generally speaking, an amp protects 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.

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