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How do I replace fl231 fuse, and repair flyback transormer

I have a r52wh74 rca tv and I just turned it on and I have 3 colored lines at the top and it looks like it is in 3d. How do I replace the fl231 fuse and repair the flyback transformer and where are they located?

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I'm sorry, but you have no idea what you're doing. STOP!!!!! What makes you think the fly is bad? A bad fly will not let the set come on at all. If it was me, I'd be thinking the convergance circuit. That's why you have the 3D picture. If you hell bent on your diagnostic, The flyback is the most recognizable part inside a television. It's big, It's plastic and it has a big red spark-plug looking wire coming out the top. You unsolder it from the bottom. RadioShack has a desoldering iron with a red bulb that works great. Also some solder wick. Unsolder the pins and remove. Then replace and resolder. Same thing with the fuse. The fuses are all marked on the circuit board itself. Any part on the board must be removed by unsoldering. You need to trouble shoot in a better way than you are or you'll be spending alot of money you don't need to. Also, if you don't know what your doing, you can get yourself into trouble real fast and make the set unrepairable. Most shops won't work on sets that the customer tried to fix themself. You got me VERY worried. You are the guys I worry about giving information too and wind up killing themself. Please....get some help with that thing. I just don't want you getting hurt or destroying your T.V. It's an easy fix right now, but you have to know what you're doing.

Posted on Dec 24, 2008

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I have the same tv and just had mine repaired for the same problem just got it back yesterday turned out to be the fl231 fuse blown and the flyback transformer solder points have rings in them. It cost me $211.00 to get it fixed and they said it's common problem and most repair shops should have the part in stock and fix it in a couple of days.

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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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