I picked up a free Dell W4200HD Plasma tv from a person that said the tv would lose picture. Thinking it was just a bad Y-sus board I brought it home and on the way back it started raining, not hard but the front panel did get a few drops on it. I dried it off, plugged it in and got a weird colored snow picture. The tv stayed on for over an hour without any changes. Then I started to smell something burning. Turned out to be an IC on the top buffer board. I ordered another one and installed it, now the tv will only turn on with the x-main board unplugged, It has the orange standby light.
The sustain boards need to be replaced in pairs. I replaced just the bad one before and ended up burning out the other old one and the new one aswell
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SOURCE: Is Dell W4200HD Y-Main board and Dell W4201C HD Y-Main board compatible
The port locations do not seem to line up the same so I'm pretty sure they are not interchangeable
http://support.dell.com/support/edocs/systems/w4201c/om/OM.pdf
http://support.dell.com/support/edocs/systems/W4200/W4200UG.pdf
It can be worked on by a local TV repair, then TV was made for Dell by Philips
SOURCE: I have a Dell 42"
The image is generated this way: the image processor renders the image , the ysus board converts that rendered image in actual pixel data and the buffer boards transform the data in actual commands for the pixels. This is what happens when they fail:
- the image board - the entire image goes missing or is severely corrupted.
- the ysus board - half of the image goes or gets corrupted
- the buffer board - since it never happens that all the buffer chips on a board die at the same time only the lines commanded by the faulty chip get corrupted. This is exactly your case.
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