Question about RCA D52W20 52" Rear Projection HDTV-Ready Television

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HDTV convergence going bad

Is there a way I can just buy the convergence board. What does it look like? Where is it located at? Is it near the front or back of the tv?

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Re: HDTV convergence going bad

Convergence is tricky.. there are three seprate boards that it is split with.. do you have NO convergece at all.. could be convergence power color... convergence amplifer board.. it it could be the signal board.. there's even a chance it could be a descrete fuse... shoot me some more info..

Posted on Dec 07, 2007

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My Toshiba 50H72 HDTV has shadows like watching a 3D movie without the glasses. I only have the cablel remote and trying to adjust the convergence through the front of the tv did nothing. I also have...

The tv hyber board also known as the tv convergence board it is dead.Yes,if u have all the tools and also can do ICS chips soldering works?Yes,Tries websites like, to buy a whole complete convergence kit belong to ur tv make and model replaces those 2 STK conconvergence ICS and some or all of it resistors too by ur self.Or the shops will cost u like $300-350 for parts and labors.

Jun 17, 2011 | Toshiba 50H82 50" Rear Projection...

2 Answers

Convergence board is bad

This is a common problem. Its called a convergence failure.

Problem #1) Convergence


  • Screen Looks 3D
  • Colors wont align
  • Video may look distorted

You can see some examples and find a fix here...

Dec 28, 2009 | Akai PTH5498 54" Rear Projection...

2 Answers

I have a Mitsubishi WS-65711 that is six years

Go by number on your ICs If they are STK392-570 then use STK392-570 only! Call Mats for parts 10.95 each 1-800-628-1118 They are Big Black ICs mounted on Big Aluimmim heat sink will have STK on them!

Dec 27, 2009 | Mitsubishi WS-65711 65" Rear Projection...

2 Answers

Turns on has blue light thats it no sound or picture

convergance amps are failing and need to be replaced along with the 2 burnt resistors not a bad job they are locate on a smaal board in front behind the front panel on a large heat sink you can take the board out and work on it

Nov 28, 2009 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Red blue and green lines on top on phillips hdtv. What can I do to fix it.

1.) This sounds like a convergence problem--with the original remote go into the customer menu and select convergence--see if red or blue will not move in some direction.

2.) If some color (red or blue) will not move in some direction--you need to replace both of the STK-392-120 CONVERGENCE IC'S THAT THIS SET USES along with any of the green 6.8 ohm resistors around them that are discolored(bad).

3.) With the back cover removed the chips are on the left large board on two metal heat sinks with fins--they are black and about 2 1/2 inches wide and 1 1/2 inches tall and the STK-392-120 is printed on the face of them in white. The resistors are in front of the one near to the front of the circuit board and left to right around several plugs there(convergence yokes).

4.) You can buy both chips on Ebay for about 13 dollars plus shipping; If you are able to do this repair you can save a lot of money---after the chips and or resistors are replaced you need to go into the Convergence Tech mode(I can tell you how to access it) and adjust the convergence in first the regular non Hd and then in the Hd.

5.) Most shops TRY to charge 300-400 for this kind of repair--I have done hundreds of them here for 200-250.

6.) If you are not able to do this repair shop around your area for someone who can do it---if a shop says "It has to go to the shop" keep looking----any good tech can do this repair in your home in about 1 hour.

7.) If you have any questions or need advice reply to this posting.

I do this here for free so if this information has been helpful please take a minute and give me a vote here-----I am here to help people.

Regards, SD TECH

Sep 11, 2009 | Philips 60PP9202 60" Rear Projection...

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Take the board out through the front inspection hole. No screws holding board. Middle large plug disconnects from chassis, not converge board. All other plugs come off converge board.

If the large plug is a problem, just hang out the front and solder.

Be careful with foil on board, crappy board.

Pacific Semi for ICs.


Jul 29, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Sony HS30 Convergance Issue

The STK ICs are located on the D board their locations are IC801 and IC 802 they are both STK392-560 and you will only have to remove the D board. Usually only 1 or 2 resistors go bad right next to the ICs heatsink. You can get replacements at the following link and they include installation instruction plus free tech support heres the link.

Apr 07, 2008 | Sony KP-46WT500 46" Rear Projection...

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I have a rca hdtv r52wh77 1 year old ,i have color problems ,i cant get to the convergence set up ,please help.thks

Try looking at the main board very near the flyback and you should see 3 fuse links (they look like hard capacitors) one of them is probably open causing lack or power to the convergence board by way of the ribbon seated close to the vertical output IC

Dec 22, 2007 | RCA P52937 52" Rear Projection Television

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yes you can but the going rate for this fix is 250-350 if you would like to fix it your self let me know and ill give you step by step k good luck

Nov 20, 2007 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

Convergence problem

This is by far the easiest TV to replace the convergence ic's - you don't even have to take the back off! Remove the front panel by removing the screws on the back edges secured to the front to the cabinet,also remove the small screw behind the front control door - the front comes off - remove access panel,there you will see the convergence board right in front - unplug the connectors to the board - pull it out and replace the ic's (2)part# STK392-110. Also check for any burnt or discolored resistors near the ic's - they may need replacing

Aug 20, 2007 | JVC AV-48WP74 48" Rear Projection...

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