Question about RCA R52WH73 Projection Television

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R52WH74 with a convergence problem. I understand the solution is to replace the fl231 fuse and resolder somthing else. I have seen a video on youtube of how it is done. The fear I have is that I have never soldered anyting. Is that something I need to practice before trying the real thing and do you go about removing the old solder?

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Resolder the Flyback Transformer pins. It looks like a Black Hand Grenade with a red wire out of the top.You don't need to remove any old solder / Just place the tip of the iron on the connection and let it melt the existing solder and add more solder to it while still holding the tip of the iron on the connection / then remove the iron and go to the next connection.Should be about 9 pins on that transformer.Be sure to unplug the TV from the wall outlet 1st !

Posted on Jul 30, 2009

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1 Answer

My R56WH78 tv has lost convergence overnite,I can not access any convergence menu with the remote control,What should I try next.


This RCA tv model have a dead convergence fuse at FL231 at the right side of a FBT- a big black plastic block with a wire hook to a board.Must resolders the FBT-(Flyback tranformer too).U have all the tools and also can do basic soldering work too?Yes,try website like Ebay.com to by the RCA tv convergence fuse to replaced at location FL231 and and also resolder FBT-Flyback tranformer too.Will solved this tv RCA model convergence problems.

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http://servicemanuals.vstore.ca/

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Yes i replace that fluse fl231 all the time at the shop. at least two aweek. and the first few i replaced did the same thing. I would send it back to customer and i would get a call that the set had malfuctioned again and convergence gone. It was determined the reason this fuse blows is bad conections on the flyback transformer. The flyback is the big black component with the red wire coming out of the top. if you examine the connections on this component there will more than likely be a ring in the solder. this is caused by the manufacturing process known as LEAD-free solder. THis cause oscillations in that cuicit. like turning it of and on really fast. this is a very small fuse and cant stand up to this. so when you replace this fuse just simply RESolder these connections apply a little amount of solder to these connection. i am confident this will fix your problem.

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you need to replace chemical type fuse marked FL231 part number 259213, it`s located next to the flyback transformer, theres 3 of them there but 231 is the only one I`ve seen cause your problem, replace it and you`ll be all set.Happy Holidays !

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