Re: back cover causing Plasma display issue.

Thanks to you all for the great tips; It turns out this problem was in fact due to the Ys board overheating. The hair dryer test did the trick with duplicating the symptom, and narrowing it down to the exact board. I was extremely fortunate to have found the last Ys board on the planet, and for just $100 on Ebay. I also installed a couple 120 mm cooling fans inside the back cover... Something Samsung should have put in all of their plasma units.
This makes me wonder how many other people out there with fan-less plasma sets, are...

Re: Recommend me a MultiMeter



Wow, that meter brings back some memories. I carried around the same one when I worked for Xerox over 25 years ago. It was one of the best meters made in it's time; If you pull up the Xerox 600T1616 label in the front, you'll see the actual manufacturer's name (Simpson). Xerox would later provide us with Fluke 87s... Branded of course with "XEROX" on the front....

Re: back cover causing Plasma display issue.

Thanks Reeceyburger, I will double-check that. I also wanted to mention that while all the caps checked out okay on both the Ys and Xs boards, I did notice that the Xs pwb was warped, and had dark (burn?) area running down the middle of it. If this pwb is in fact running hot enough to burn and warp the board, then is it safe to say, the heat sinks may need to be R&R'd to clean and regrease them? And maybe add some fans for additional cooling? I have no confidence with Samsung's design for not installing fans in this TV.

Re: back cover causing Plasma display issue.

Thanks for your suggestions... I've thought about heat being the issue, and at one point I had actually installed a couple computer cooling fans (externally powered) on the inside top of the cover (plenty of room away from components) above the the hottest boards, but did not help at all.
Still I will try the hair dryer test to hopefully duplicate the problem, and better yet isolate it down to a specific board. If I find that it is a specific board that is overheating, I would imagine it would be one or more mosfets under the heat...

I have a Samsung PN64F5300AF that has been casting the (not so uncommon) pinkish/green tint on white areas of the image. I recently R&R'd the Ys and Xs boards to test the caps, check the Vs and Va, and Caig cleaned all the connectors, including the scan board ribbon cables.
Before reinstalling the back cover, I ran the TV for an hour, and was happy to see the display problem was gone. So back on went the rear cover, and in less than a minute, the display problem was back.
I checked the inside of the cover, and the back of the TV, to make sure there was nothing out of place....

Re: New Members - please post your introductions here

Hello, my name is Rob, and I discovered this site searching for a solution to a very unique challenge my Samsung Plasma TV has provided me... Which I will soon be posting under the appropriate topic. I was also referred to this forum by a Digi-Key technical assistant, so that makes me even more optimistic that I may find the answer to a most uncommon problem my TV has.
Thanks,
Rob