Question about Sony STR-DE915
The main display is no longer visible, it used to work when you first turn it on then stop, but now it stays off all the time
Hi there, can anyone help me? i cant seem to get my aiwa-d58 to get out of eco mode. no power, red light is on and every time i press the power button; the eco light clicks off and i no power supply to the whole unit. please help!
Posted on Jan 22, 2010
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.
Posted on Aug 02, 2011
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