OK, thanks for clarifying. That's what I expected, based on this model's history.
More specifically, with this model, everything you're describing is very
common. This model has been well known to have faulty capacitors on the power supply board, which causes this exact
So well known, in fact, Samsung actually settled a class-action lawsuit about it in March 2012. This is good news for you, because Samsung will repair the unit at no charge… even if the unit is no longer covered under the original warranty.
You need to call 1-(NNN) NNN-NNNN That’s the support line for these claims. You can also read more about the settlement at this link
If you’d rather repair it yourself, let me know and I can help you. You would have to pay for the parts.
I hope this is GOOD news, and that it answers your question. If it doesn't, just let me know!