Did you check the fuse on the back of the stereo? Maybe this is blown.
SOURCE: I have a Technics Stereo graphic equalizer. Trying
The power supply unit has failed in your equaliser. If it is the main transformer check for the continuity of the primary and if open you will need to replace with the same one or rewind with the same parameter.However if the thermal fuse is blown you can short the winding with a fuse wire. Also check on the dc side for any fusible resistors that would have opened out. Hope you check this out. Good day
SOURCE: Dell Dimension B110 will not power on when front
check the bezel/power button
try to open the tower but you have to make sure that its unplugged/ after unplugging the power cable press the power button for about 5 secs to drain the flea power then check the power button maybe its broken or the cable connected to the power button to the main board is damaged or loose.
SOURCE: After changing the battery in
check wiring may have shorted
but first take cables off battery then put back sometimes that will reset it
SOURCE: My Sony stereo system keeps
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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I tried to get my onn mini stereo cd player ond19aaa;12 to power on for 4 days, and finally got it to work by jiggling the power cord in the power connector on the back of the player, and everything now works perfectly!!
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