No picture Our Plasma is not getting a picture. Any suggestions on how to fix it.

The plasma picture tube technology lasts only 24 months before it burns itself out, requiring a new
plasma picture tube. The LCD and LED technologies do not suffer from this short life span.
If your Philips 50PF9956 is over 2 years old, you've got all the use your plasma can give.
Fix: new plasma display - the electronics controlling the plasma display are most likely fine - just
like the electronics providing audio to the speakers. Your set's only problem is a burnt-out display.

could b flyback transformer, hard to tell with out benc testing , no power is cheaper to fix than picture problems and normally a lot less God Bless

Replace 6870QZE013C or 6871QYH053A (more likely).

The second is the Y-Sustain board, located to the left of your TV when looking from the back.

This is the one that usually burns and the fuse on it is likely shorted. Do not replace it, it will burn again.

your problem is in the Y or Z sustain boards i just fixed one of this today with the same exact problem and i replaced  the Y sustain BINGO.
good luck 
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Wow, that sucks. I hope you catch those guys.
Your part number for the plasma display panel is 6348Q-E128N.
Partstore.com is the only place that I can find a replacement plasma panel. The cheapest they have is $1,045.95. :(
Shopjimmy.com sell replacement panels too, but they don't have one in stock for our TV right now. Their priced about $300
The only thing I can suggest is to find someone locally that is selling the model TV, but non-working with the plasma panel not damaged. Then use the panel off that TV.

Sorry I couldn't help you out more.
Please rate me based off the info I provided.

Most likely what happened is one of the capacitors went bad. When a capacitors goes bad it produces a popping sound. This could be an easy and cheap fix if you find the bad capacitor or capacitors. The bad capacitor will have a bulging top most likely on the power board but could be anywhere.

If you wish to get some details; visit the site linked here. Pull up older posts.
https://electronicshelponline.blogspot.com/
faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.

go here, it will work.  follow closely and read entirely!  it worked for me on a gateway plasma!
http://www.avforums.com/forums/plasma-televisions/462873-black-line-fault-hyundai-hpt4240-fixed.html

enjoy!
stephen

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.

update: Well, we ended up calling the repair man and we had a bad Y-sustain board and also a bad Z-sustain board. According to the guy who fixed it, it was due to over use of the TV and using main power button instead of shutting off through the cable remote. 650.00 later and a few weeks later, we now have a fixed plasma. No real suggestions on how to get more life out of the new boards.