Pop - bang noise then went dead after a period of time

The power supply board is dead.That the board,where the power a/c cord plug in to it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Ur power board it dead.Replaced capacitors that puff up or pop open.Or replaced the whole board.

Ur power supply board is dead,pop propally the capacitors pop,puff up.Check replaced the capacitors.Or replaced the whole power board.

Depends on the physical size of the cap; there are some larger ones in your set that would produce a 'bang' but you should also have gotten a whiff of the airborne chemicals then.

Hi..there,
It's seems your bios on the monitor are the caused... Next time went it come one again...press 1 for YES. Still pop up again...you need to reset to the factory settings or need to updated your bios...

Chances are a capacitor has blown. They normally make such lovely poping noises when they die.
What will of course now be happening is the voltage inside where that capacitor was will be unstable and it could very well completely fail in the near future.
I would reccomend you get it to a repair shop sooner rather then later for a cheap simple repair rather then an expensive monitor replacement.

I have seen the caps in the power supply vent, which means they get hot and the top pops up and splits open, resulting in the "bang" sound. If you have experience in electronics then remove the back of the set and examine the power supply, looking for any caps whose tops are bowed upward, and replace.

I have the exact same problem. It is completely dead but sometimes when I go to turn it on the screen will flash white and the speaker will pop. I tried different batteries and different chargers and I have no idea what the problem is.