Question about Philips 42PF7320A 42 in. Plasma HDTV

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Half the screen has gone black

My Philips 42" Plasma (42PF7320A/37) screen is half black. It seems to come and go often and has gotten worse these past few days. I've already done the latest software update. It seems to fix when I hit the back of the tv. It's an old school way of fixing things I wish I didn't have to resort to. Any idea on how to fix? I'll take the thing apart if I know where the fix is.

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Re: Half the screen has gone black

Ok first lets start with the half screen and no lit screen . Samsung plasma panels (S42AX-YD01) HD V4. are really bad about the Y-board (upper,lower) buffers are really bad about getting hot and burining up. If u remove the back cover of TV u will see on the left side the Y-board (it will be marked in small letters) if u look and the rows of IC's with heatsinks on the buffers will be a dark yellow. Majority of the time if u remove the buffers. and look underneath them u will see the solder has melted from the board. U can replace the Y-board and buffers and the TV will work fine.
Next part if u have vertical lines in the panel. There is not much u can do as a repair. Only thing u can do is get panel replaced. because there is and IC that is burned up on the panel, and trust me there isn't anything u can do to fix it. If u want to see for yourself. After removing the back cover, remove SSB, and brackets holding PDP in place. at the bottom of TV there is a row of buffers marked E,F,G, ( i think) there is a long heat sink covering the IC's at the bottom connected to the bottom of PDP. As u can see without a $70k machine to change this there is not much u can do with it. Hope this helps.

Posted on Apr 14, 2008

Re: Half the screen has gone black

We ended up purchasing an extended warrrentee from Sears. They ended up replacing everything inside the tv. Then the screen itself went bad. They ended up giving us a discount on a new tv.

Posted on Feb 23, 2008

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Re: Half the screen has gone black

This is a bad screen. The whole screen needs to be replaced. I got a replacement screen by watching my local craigslist for a Phillips that wont turn on. It is also a Samsung screen but I forgot to write down the part number before I closed it up.

Posted on Apr 13, 2008

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