Hello, Last night my Samsung plasma TV made a fairly loud popping sound while I was watching it and then the power went off. When I turned back it on, no picture but sound was o.k.

Any ooze coming from under a cap? The simple fix is to get another mainboard for around $45-65 bucks online from lots of sources.

Appears to be a power supply issue with everything being so dead.

TV repair, clicking and will not power on, loud snap, no ...

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https://www.youtube.com/watch?v=UKoR7pWAHzk
Nov 25, 2014 - Uploaded by Robert DIY
TV Power board replacement - 30 - 60 minutes ($20 / $110 / $250 / Replacement) This video will show you ...

Samsung LCD 46 Pop! Then Dead! - TV Forums

www.tv-forums.com/...Repair.../Samsung_LCD_46_Pop!_Then_Dead!_...

Nov 23, 2011 - 7 posts - ‎3 authors
While watching TV, I heard a loud pop, then the tv went dead. ... Ok, so I tested the fuses and the main fuse, by the power plug, had no ...

Samsung power defect causes some TVs to fail, and a class ...

www.cnet.com > Home Entertainment

CNETFeb 14, 2012 - A defective capacitor in some Samsung LCD, plasma and DLP TVs is causing the ... The LN-S4051D is one of the TVs Samsung admits has issues ... In a February 9 report entitled "More than 7 million Samsung TVs plagued by possiblepower defect", ..... Today I heard a loud pop and now I have no picture.

There is a power supply failure and this might need attention of a qualified service technician

PROBABLY FAULTY POWER SUPPLY CAPACITORS

AVERAGE REAPIR COST £60 TO £80

Check the power board for any domed capacitors. Replace them. If this does not fix Replace the power board. You can check the voltages from the power board. they are labeled. VS and VA voltages are the panel voltages.

The x-sus or y-sus panel wil be the fault.Check the fuses on these panels ,if one of the fuses is open then that panel must be replaced.Not verry cheap to replace.

It's either the backlight lamp or backlight inverter is busted due to a power failure or fluctuation. Here's how to determine which is which:

1. Grab a flashlight.
   
2. Turn on the TV.
3. Shine the flashlight onto the screen.
4. If you cannot see any display even a faint one, the backlight inverter is dead, else the backlight lamps are busted.
5. Replace which ever is the culprit.

There is not much you can do to fix your plasma. Since the plasma is less then 1 year old, still under Samsung warranty.
I would suggest to call them to fix it.
Good luck.

I would suggest to read what other members have reported by clicking here.
Good Luck.