If convergence is skewed in some area of the screen and will not adjust one of the two STK-392-110 convergence chips the set uses is bad.
See attached photos which show typical convergence problems and what the board in YOUR SET LOOKS LIKE.
This board is fairly easy to get at and the repair easy for a do it yourself person--I can tell you how to get it out and what is involved.
Total parts cost will be under 25 dollars on EBAY.
If the pictures or information told you something you did not know rate this solution as very helpful as I do this here for free.
SD TECH
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IF YOU FIND YOU WANT TO DO IT YOURSELF LET ME KNOW AND I WILL TELL YOU HOW.
i have this problem, the #2 postions green cross is so far down that I cant adjust the blue or red down to it, it has a dip in it, we would like to know how to fix it please, thank you
Very helpful. Can you tell me what is involved in removing these pins and replacing them?
remove entire front speaker grill (held in with screws on back on either side) convergence board is directly behind plate behind it; the board is right in front----one plug from it goes directly back to another board, you unplug that one at the other board. all others on on this board
board is held in at front side with plastic snaps---BE SURE MARK ALL THE PLUGS AS YOU REMOVE THEM! ALL MUST GO BACK EXACTLY WHERE REMOVED FROM.
WITH the board out the two chips are soldered in (18 pins each) and two screws hold each chip in, you with them unsoldered may have to tap them free of the metal.
Look at the resistors in front of both, you are looking for any burnt or discolored.
the chips have to be unsoldered, removed, and replaced (be sure to remove all the old heat grease and put fresh on the two new chips.)
put everything back and turn it on, some adjustment with the remote will be needed.
SD TECH
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