50" Samsung ps50b451b2w

[Stevieo]

Hi I have a 50" Samsung ps50b451b2w, there are 7 or more thin black lines at the top of the screen from left to right. Any ideas of problem and repair? Thanks in advance Stevieo..

[electronicsurplus]

Re: 50" Samsung ps50b451b2w

I would suggest either the Y-Buffer/Y-Sustain or, possibly the Panel itself

Since, this is common in Samsung/Philips Plasma Televisions.

I would try replacing the Y-Buffer (Upper, IF there are 2 Upper and Lower)

But, would be suggested to change both buffer,s and Y-sustain because, in these sets a buffer can burn a y-sustain and, also, a Bad Y-Buffer can also burn the new buffer) So, it would be best to try only for limited time. These buffers can usually withstand a short for a very small amount of time but, not always.

Jon