I have the RCA model R52WH74 chassis ITC222A and i'm having the convergence problem with the 3D effect and picture bends in the middle. My question is to repair this problem do I only need to replace the fl231 fuse or the convergence board or the convergence power board or the dl231 diode or any combination of these. Also I've read to resolder the Flyback do you think this is correct? Thank you so much in advance for your help.
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Its more than likely the FL231 fuse has blown due to carcked solder joints on the flyback. very famous issue with that model if the auto convergence feature is no longer listed under the setup menu then you will need the convergence option missing repair kit from www.tvrepairworld.com
That model doesnt have the normal convergence components that nost other sets have. There are no convergence ICs the convergence is actually affected by three boards within that chassis it can be deflection board related, Convergence power board or the convergence amp board. Based on your TVs setup menu diagnosis will determine wether a component needs replacement or wether a circuit board will need replacement.
That model is famous for having issues with the deflection board failing. Replacing the deflection board should solve the issue. You can get replacement deflection board for the ITC222A chassis from www.tvrepairworld.com under the RCA circuit boards catagory.
The tv have a problems known as a convergence problems,it is dead.Tv have any colors lines R,G,B mis alignments,have any colors shadows pictures or 3D pictures look alike?Yes,than the tv convergence board it is dead,convergence board must require changes 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to fixed the tv convergence picture problems.The tvs shops will cost u like $300-350 for parts and labors.
Go to menu then setup look for convergence if you do not see convergence then you have A open FUSE It will be on right side of FBT flyback transfomer there is 3 of them in a roll they are small brown rectrangler looking caps but ARE FUSES it will be the one in the middle. Replace it and you have a FIXYA.
no the board that has the FL231 on is the ITC222 deflection board. The other board is above the chassis in a seperate frame that runs across the set the convergence power supply is the board on the left above the board where the fL231 is. Yes the ITC222 and ITC222A are the same chassis. As for the service manual that site should have the service manual under the thomson category as the ITC 222 chassis is actually a thomson chassis made for RCA.
Sounds like the convergence IC'S are either bad or a fuse maybe bad in the convergence circuit. The part # should be on the chip itself if you want to try and change them yourself. Good luck and keep me up to date on outcome. Cheers. Jay