Hi, I'm hoping someone can help me out.
I have a Samsung 42 inch plasma (Model PN42B430P2D) and I have sound, the problem is the picture.
The tv turns on fine, but it seems after a while....
1. The top quarter of the screen goes black. And..
2. The bottom portion that does turn on looks like a "lava lamp"
I've checked Va and Vs voltages, all fuses, and for obvious swollen caps, all seem fine. I've also tried looking for shorts on the Y buffer board with no luck, obviously I could have missed something.
My question would be, could a bad Y buffer board cause the "lava lamp" symptom? As I'm fairly certain it is the cause of the black screen. (The two top most chip are probably failing)
or...
because the tv turns on for a bit, could this be a cap on its way out? As the temp increases, it fails? Or could it be another component?
Thanks in advance.
I have a Samsung 42 inch plasma (Model PN42B430P2D) and I have sound, the problem is the picture.
The tv turns on fine, but it seems after a while....
1. The top quarter of the screen goes black. And..
2. The bottom portion that does turn on looks like a "lava lamp"
I've checked Va and Vs voltages, all fuses, and for obvious swollen caps, all seem fine. I've also tried looking for shorts on the Y buffer board with no luck, obviously I could have missed something.
My question would be, could a bad Y buffer board cause the "lava lamp" symptom? As I'm fairly certain it is the cause of the black screen. (The two top most chip are probably failing)
or...
because the tv turns on for a bit, could this be a cap on its way out? As the temp increases, it fails? Or could it be another component?
Thanks in advance.
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