Question about Samsung PN42A450 Plasma TV

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I have a samsung model # PN42A450P1DXZA, the tv was on the screen went blank,you can still hear whats on tv but can not see whats on

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  • 131 Answers

I would start by looking at your Y Sustain board, this is on the left hand side when the back is removed. check the fuses on the board and if they are short then try and replace but most times this will not fix the problem if it does not then get the part number of the board and google or Ebay for a replacement.
Hope this helps

Posted on Mar 23, 2010

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Posted on Jan 02, 2017

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Samsung plasma screen went black. Was watching tv, heard a loud pop and the screen will no longer turn on. You can hear the tv turn on but no picture. Power is still working, just a blank screen.


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What do you think is wrong with my television, it has sound but no picture. How can I fix the problem?


Hi there
I would go to menu on the remote , from there to picture go down the list, if you do not find anything there to help you. Go to Support and to the E manual .
26053790-x3zeawgeewbvgdzeyuixqaom-4-0.jpeg Kolbrun

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This is weird. I also have a plasma 50" model PS5Q91HDX and on the 5/02/11 the screen went blank when my friends daughter was watching a Wiggles DVD. The image kept coming back, flashing a scene or two before going black again. But the sound is perfect.

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1 Answer

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check oscilator crystal on main board, need scope to do that is a 50 mhz. hope this helps

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