Question about Akai PT4298HD Rear Projection Television
Do not panic! Do not throw your TV away like I wanted to! Here iswhat may be the solution for most of the members who have postedtheir complaints here recently. I am not an expert, but I followed allblogs from various websites and forums, and the conclusion was thesame;replace the convergence board for this model. I purchased itfromwww.partstore.com and since this Akai is the same model as theSamsung Model # HCN4226WX/XAA, buy the Samsung BP95-00142E Convergenceboard for $77. It came to about $85 after shipping. The Convergenceboard has two black STK ICs and two colors of wires, a gray kind and ablue kind, all which have 'pins' and can easily be unplugged fromthe circuit board in the TV. It is basically a complete system thattakes less than 30 minutes to install. It is a simple swap procedure,with no soldering. You only need the new board and a screwdriver! Removethe lower back board of your TV where the cables are plugged in (donot unscrew all the screws for the screen, as it is unnecessary, andmight just damage your screen if you are not careful.) It has a u-likeshape and comes off easy. Detach the gray wires connecting your oldboard to the rest of the circuitry, and detach the blue wires connectingthe old board to the circuitry. On the old board, there are connectorsmarked,from left, blue, green and red. Detach those from the old board,and mark the wires so that you may connect the correct the wires to thenew board. You then unscrew the only screw connecting the board to theTV,and unhook the board from the TV. Hook the new board to the hookswhich held the old board, and screw the lone screw to the board. Plugthe gray cables from the new board to the connectors where the graycables from the old board were,and do so for the blue cables. Connectthe multicolored cables to the blue, green and red, just as was done onthe old board. Reattach the cover and test the TV. Please do notreplacethe two STK ICs only. When I removed my old board, I realizedthat there was a burn mark, where the ICs were, but maybe it was a fuse.You may replace the ICs only to discover that it was another problem.Good luck, and I wish you all the best in the repairs. I just savedabout$100 for a repairman just to show up.
Posted on Dec 11, 2008
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Posted on Jan 02, 2017
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