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Broken Tv My Tv looks 3D-I think it's a convergence problem. Need advice. RCA R52WH74

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  • Sileebear Feb 09, 2008

    I am a layperson. Is this a feasible repair job or do you think it is a service call?

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Check for voltages going to convergence power supply PCB on connector Bl600. If low or missing, check for bad solder on flyback and pico fuse # Fl231 for open.
Bill

Posted on Feb 09, 2008

  • William Rayburn
    William Rayburn Feb 09, 2008

    You would be better-off with a professional that to tackle ANYTHING inside a TV... And the repair shouldn't be an expensive one.

    I don't often toot this but I went to school for years and then OJT for two more before I was making the decisions on what was wrong inside a Tv. My brother-in-law the doctor and I have compared noted on time and cost and I could have spent about the same of both and been a peditrician.

    That said, it's always more reliable to leave the surgery up to the doctors than try it yourself if you're uncertain...

    Bill

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1 Answer

I have a RCA Model R52WH74. It hs a double view to it liek the colors has seperated. It also has a wavy red line across the top. It looks like the projector bulbs are out of line. All three bulbs are...


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.

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Picture looks like 3d i have ajusted screen but keeps going back to 3d and picture is bowed


Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.
This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....
•Screen looks 3D
•Colors don't line up
•One or more colors can't be adjusted when using the convergence menu.
•Screen is bowed or warped.
•TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.

Here are some photos of convergence problems


a56fe79.jpg

6d0da0b.jpg

fcabb43.pngCONVERGENCE SOLUTION

You can see some more examples and find a fix using this link on Fixya - CLICK HERE

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You have a problem with convergence and all you may need to do is replace a fuse. Look up convergence for your tv model and hopefully you will get an answer as to where the fuse is located and how to replace it. Very common for RCA tv's

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Rca 7302rd5 56"hdtv tv looks like a 3d moive


Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.
This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....
•Screen looks 3D
•Colors don't line up
•One or more colors can't be adjusted when using the convergence menu.
•Screen is bowed or warped.
•TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.

Here are some photos of convergence problems


a56fe79.jpg

6d0da0b.jpg

fcabb43.pngCONVERGENCE SOLUTION

You can see some more examples and find a fix using this link on Fixya - CLICK HERE

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Bow tie looking picture with 3d color mis-alignment


you have lost convergence. First thing to check is to see if you are missing the convergence option in the customer setup menu. if you do not have this option then i suggest reading the article in the tips and tricks section entiltled "the fl231 fuse problem" this is a common and sometime easy repair if you do have it then you might need a convergence power board

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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.

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This is called convergence board failure. try to re calibrate the convergence. if the re calibration fails, this means your convergence board will need to be replaced or, rebuilt.

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On same Board that you replaced fuse Look at cp 150 if it is puffed up on top it is bad so replace cp150,114,120 one will be 2200u 16v
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1 Answer

?Convergence problem


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

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