I acquired a 50" Philips plasma, model number 50PF9630A/37 a couple months back. Short background on it: my fiance's sister is a manager at an apartment complex near her college. When people move out and leave items, they raffle it off. They "tested" the TV and confirmed it worked, raffled it off and she won. Being a 135lb behemoth made in 2005, she had no use for it, so she let me take it.
After moving the monster inside, I plugged it in to power and to cable, to test it out. Worked great.
A few days later, I went ahead and moved it to my old fraternity house from college (they needed a new TV and this was free). Plugged it in, and after some fancy plug/un-plug trickery, I got it to turn on.
Had the cable box connected, and other than some odd moments where switching from SD to HD would cause a black screen (which was fixed mostly by restarting the cable box), it was working great. About 20 minutes later, the bottom half of the picture went black. I tried unplugging it and plugging it back in, and that's when I noticed it wouldn't always turn on, instead flashing the LED at me, and staying off. I read online this was likely caps on the power board, so I ordered some up, and they were soldered into the board to replace the visibly-bursting old ones.
So now, the television starts up great, as it should, every time. Unfortunately, the bottom half of the television is still black. On the very bottom, the last row or two of pixels is purple (not consistently all the way across, it varies a bit), like signal is trying to make it's way upwards, but the rest of the bottom half of the picture is black (I can have pictures taken, if needed). The top half works perfectly fine, as does sound and everything else.
We took it apart again last night, and replaced the Lower Y-buffer board with a working one I bought off ebay - same part number - just one revision newer (so it had the small white connector at the top - something the original board does not have). Put the cover back on, put a few screws in, and alas - still the same problem. So it seems like the lower Y-buffer is not the issue.
Any thoughts on what could be causing this and/or how to fix it? It's a nice television and had a great picture for it's age, when it worked, but having half a picture doesn't help when trying to watch a program, haha.
Thanks,
Kyle
(Again, if pictures are needed, let me know, and I'll get a few).
After moving the monster inside, I plugged it in to power and to cable, to test it out. Worked great.
A few days later, I went ahead and moved it to my old fraternity house from college (they needed a new TV and this was free). Plugged it in, and after some fancy plug/un-plug trickery, I got it to turn on.
Had the cable box connected, and other than some odd moments where switching from SD to HD would cause a black screen (which was fixed mostly by restarting the cable box), it was working great. About 20 minutes later, the bottom half of the picture went black. I tried unplugging it and plugging it back in, and that's when I noticed it wouldn't always turn on, instead flashing the LED at me, and staying off. I read online this was likely caps on the power board, so I ordered some up, and they were soldered into the board to replace the visibly-bursting old ones.
So now, the television starts up great, as it should, every time. Unfortunately, the bottom half of the television is still black. On the very bottom, the last row or two of pixels is purple (not consistently all the way across, it varies a bit), like signal is trying to make it's way upwards, but the rest of the bottom half of the picture is black (I can have pictures taken, if needed). The top half works perfectly fine, as does sound and everything else.
We took it apart again last night, and replaced the Lower Y-buffer board with a working one I bought off ebay - same part number - just one revision newer (so it had the small white connector at the top - something the original board does not have). Put the cover back on, put a few screws in, and alas - still the same problem. So it seems like the lower Y-buffer is not the issue.
Any thoughts on what could be causing this and/or how to fix it? It's a nice television and had a great picture for it's age, when it worked, but having half a picture doesn't help when trying to watch a program, haha.
Thanks,
Kyle
(Again, if pictures are needed, let me know, and I'll get a few).
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