No picture black circle in the middle, I have sound
I have sound my tv is a plasma abt 2 years old i was wathing it and then a black circle started spreading and getting bigger to almost the whole screen. I can see some pix around the edge? someone stated it was the gas inside.
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The cost of getting this plasma fixed is not costwise compared to getting a new TV. I recommend NOT to get another plasma but get either an LCD or LED for the best quality compared with price. Plasma parts can be quite expensive especially for a 10 year old model or may not be available.
eithor the flyback just craped out or the tube went
try turning up the flyback failing that call a service tech and ask for a quote
quote cose 30-50 bucks
atleast you will know forsurre if it's worth fixing
I too have this problem with no help from hh Gregg, where I bought the tv, and no help from Toshiba. I resorted to calling the BBB and complaining about the defective workmanship. I took the tv, which is less than 2 years old, apart and found the y-sus board, behind the y-sus board is a foam rubber spacer to seperate the circut board from the backside of the screen. I think this pad is designed to prevent heat buildup in the y-sus board. The pad itself is held on by glue and that glue melted causing the y-sus board to short out. I noticed this after finding a tacky substance behind the board. The heat from the plasma screen melted this and also the pad itself. Toshiba claims no resposibility because the tv was out of warranty. Thanks Toshiba.
Most likely will get worse as you are describing a failing control bd. The part # is 6871QCH038A and is a fairly complicated repair. A good deal of disassembly required, and I would take advantage of your service agreement.