Question about Sony LBT-LX50 CD Shelf System
How can i resolve the push power protect problem
Likely a problem with the amp. Buy a new one and don't run it on full power for too long. Mine got shagged when I had a party and maxed it out for 2 hours.
Read it could be excessive solder on the amp circuit heating up too much then obviously not working after it cools since the connection is messed up when the solder changes shape.
Posted on Aug 26, 2008
Bin it and buy technics
Posted on Jun 21, 2008
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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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