20 Most Recent Sharp CD-BA3100 CD Shelf System - Page 4 Questions & Answers

https://prezi.com/vgxxmjfbc1ya/sharp-alarm-clock-inustructions/ Sharp Alarm Clock Inustructions

go to web site, look up model number, if unknown then search on Google.

Probably what is happening is that the lens is dirty so can't read the disc. Cleaning it might restore the operation, but if the lens is damaged it will not.

Several older FIXYA questions related might be still visible. Free manual: http://pdfstream.manualsonline.com/4/490b86b1-80c6-40df-a421-7bab9115f96a.pdf

Could be just a faulty switch that is broken in the open position, even though the door is closed.

Generally speaking, an amp protects itself from heat, shorts and overloads by refusing to turn on or stay on.

Overloads can be from excessive periods of high output 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 hands-on tech.

I have faced the same problem with the same model and i understood it is the common issue of sharp. It was due to the power input section fault of amp board . Check the 100mf 100 v capacitor and 100 ohm resistance if it is ok check other amp power components too including stk IC. You can find real faulty components yourself . Thank you