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Convergence on a r56wh78 rca projection tv

How do i adjust the convergence on this tv. it doesnt have it in settings

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  • TechTom Apr 20, 2008

    I have a R56WH78 with BAD convergence.The Power supply board has only the +15v present on the connector feeding the convergence board.I have inspected the power and convergence boards for solder problems and have tested all transistors,diodes,and caps (in-circuit). I have been unable to locate a schematic on this set. Any help will be appreciated

  • xxbella1984x Jan 25, 2009

    how do i get the fuse out to change it?


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I located the problem with this set and wanted to pass it on to help anyone with this problem. the chassis # is ITC222A and the problem turned out to be a fuse on the High voltage board. There are 3 fuses that sit next to the flyback transformer and the middle fuse (400 ma 125v) was blown.

Posted on May 04, 2008

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Posted on Jan 02, 2017

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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.

Aug 02, 2011 | RCA R56WH76 Projection Television

1 Answer

I have a r56wh78 rca tv that the colors wont converge, can it be fixed


Your TV most likely has one of two possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem
  • 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.
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Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.


Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

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TV set after fluid change

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2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc

Dec 21, 2010 | RCA HD52W59 HDTV Projection Television

2 Answers

I have 3d on my 52 inch rca and go to set up convergence isnt there now.is this something i can fix?


Yes its a easy an inexspensive repair. www.tvrepairworld.com has the ITC222 and ITC222A convergence option missing repair kit. The kit contains the parts and CD with instructions.

Sep 24, 2009 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

Convergence problems with rca r56wh78 how can i fix it?


go to the following link and leave them a email with your model and symptoms and they will assist you with the proper component that will need to be replaced to correct the issue and they help with free instructions when you order the components.
http://servicemanuals.vstore.ca/

Apr 25, 2009 | RCA P52926 52" Rear Projection Television

1 Answer

Green auto convergence


The master convergence settings have to be close for the Autoconvergence to work. If they are not you need a technician to go into the service menu and adjust them.This is a long job and you can't do it yourself.

Mar 28, 2009 | RCA D52W20 52" Rear Projection HDTV-Ready...

2 Answers

I have an RCA HD52w59 with a convergence problem. I've been told different things on this site. First I was told to change FL231, CL230, and DL231. I've also been told to replace both IC's (STK392-110)...


Your set doesnt have STK ICs. If the convergence adjustment option has disappeared from the on screen menu, then replace FL231, DL231 and CL230 If the adjustment option hasnt disappeared from the menu then you need to check the resistors on the convergence power supply board some of those will be open. The actual convergence Board will usually not develope problems just the Convergence power supply if the convergence adjustment option is still in the on screen menu.

Mar 15, 2009 | RCA HD52W59 HDTV Projection Television

5 Answers

R56WH78 convergence problem


Get a new TV , i have had problems every year and now its off warranty, I will never buy an RCA again as long as I live,

May 13, 2008 | RCA R56WH76 Projection Television

1 Answer

Adjusting convergence


try unplugging and waiting over night and then repluging it in this will reset the computer

Feb 20, 2007 | RCA P52928 52" Rear Projection Television

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