Question about RCA P52937 52" Rear Projection Television

1 Answer

RCA P52937SG Convergence

I have a RCA P52937SG that is having a convergence problem (from what I have read online). All edges are bowed in, and I cannot align red/green/blue. In the menu selection for "green centering", the green line is at the bottom of the screen and curved (due to the bowing).

I live in a rural area and am looking at having to pay well above standard rates to get this repaired (due to the distance from repair shops). I have found instructions on the web to do this yourself for other models, but not mine. I believe I can do this myself with proper instructions, as I have been a computer technician for many years.

Can anyone help me become a TV tech as well by giving some instructions? I have already had the TV apart once, but really just to take a look around and see if I could find any obvious problems!

Thanks!

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  • 9 more comments 
  • AuntDrea Jan 29, 2008

    The chassis number is PTK195M4B.

  • AuntDrea Jan 30, 2008

    Thanks ctf1800, I saw some of these same links on another solution you posted, however, I took it apart again tonight and I can't for the life of me find the convergence board or IC chips! Any clue as to where they are located on this TV?



    Thanks again!

  • AuntDrea Jan 30, 2008

    Sorry, I don't mean to be naive, but I don't know what this means...(???)



    R19702= 750k, R19703= 750k

  • ian napesis Feb 15, 2008

    rcaP52937 my projection has perfectly clear picture,except for the edges are bowed all around. I have changed the ic's in the pin cushion section as well as the caps,but the edges still bow into the center. I would really appricate any help,also if I could get the info for the service menu's inside.I had the sheets but lost them in a move,very hard to adjust without them chassis#ptk195m4b . Thankyou shortcircuitnaps@hotmail.com

  • oldtim Feb 23, 2008

    A friend of mine has this tv. The center of the screen is in perfect convergence. The ousides both left and right bow out and will not converge. Has anyone a solution?

  • Anonymous Feb 29, 2008

    convergence problem

  • Fire Captain Mar 27, 2008

    Convefgence

  • Anonymous May 05, 2008

    Same issue. The image looks bowed and all three colours are out alignment. This happened suddenly, from one day to the next, without any preamble or symptoms.

  • zhoni May 31, 2008

    the picture is blured around the edges how do i fix that they told me it was the convergence

  • Nicole9288 May 11, 2010

    You said you found this for different models, Where did you find this Iam having the same problem with my rca and I dont know how to fix it and i cant find any info on how to fix it.

  • Jaime Hernandez May 11, 2010

    Could please let me know what is the chassis number on this TV?

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  • Master
  • 4,402 Answers

Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
Sony Convergence
http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/
http://www.techlore.com/article/19631/Sony-Convergence-Procedure/

Posted on Jan 29, 2008

  • Cary Farah
    Cary Farah Jan 30, 2008

    check this first after i saw the chassi number this might fix it.
    R19702= 750k, R19703= 750k

  • Cary Farah
    Cary Farah Jan 30, 2008

    ????? when i copy and paste a graphic didn't make it over

×

1 Suggested Answer

Ecollier2012
  • 3459 Answers

SOURCE: big screen tv

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 projeciton 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.

42d3683.jpg

7859b01.jpg

e87380c.jpg
Here is a quick test....

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

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

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

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

69189a5.pngCONVERGENCE SOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you are handy and can follow directions. You can get complete repair kits from TvRepairKits.com or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.

Posted on Jun 06, 2010

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1 Answer

My RCA P52937SG projection tv. Picture distorted. I beleive it has to do with the green circuit / projector. Everything needs to be aligned to green. Green projector is on, but, in alignment screen I get...


The tv have a problems known as a convergence problems,it dead.Tv have colors lines R,G,B mis alignments,have colors shadow pictures or 3D pictures look alike?The tv convergence board is dead.The tv convergence board must have replace the 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv convergence picture problems.The shop,will cost u like $300-350 for parts and labors.

Mar 28, 2011 | RCA R52WH73 Projection Television

3 Answers

Screen lookes like colores separating


Here's all I find regarding bad convergence from the techrepairCD:
RCA ~ITC222 D52W20~Convergence bad~~~ITC222~Replace leaky DL032 on
deflection board~~~~~~

RCA~D52W20Y ATC221~Convergence goes out/bowed after on for a few
minutes~~~ATC221~Problem may be on the deflection board. Was unable to
pinpoint where in this case.~~~~~~

RCA~D52W20BYX1 ITC222~Convergence way off after replacing small signal
board~EEPROMS were transferred over to new board~~~IK210 was
defective..transfer the new EEPROM back over.~Remember on these
sets*when replacing the SSB* if there is a small P on corner of
screen*hold volume on remote for 8 seconds after it reaches minimum.~~~~~

RCA~D52W20BYX1 ITC222~Can not align blue convergence* bottom really
bowed* possibly either color after replacing SSB.(Or no auto
convergence.~(Service menu: turn power off for 30 seconds* press vol dn
and ch dn* simultaneously for 8 seconds* set turns on with service menu
options)~~ITC222~In service menu* select convergence. If sensor
calibration was performed when convergence was too far off* it will not
alighn.~Get crosshatch with straight lines* perform sensor calibration*
then attempt convergence alignment again. Be sure to store settings*
then do sensor calibration again.~You must get a green flash of the
screen after sensor cal and a check in the box. RED flash indicated
convergence settings are too far off~~~~

RCA~D52W20BYX1 ITC222~no convergence correction~~~ITC222~LP650
(259271) DP670 (259246) & RP632 (259564) 4.7 3W on convergence power
supply board~~~~~~

Oct 28, 2008 | RCA R52WM24 52" HDTV Projection Television

1 Answer

My 52" RCA P52937SG screen bows on the top and on


What you are describing can be due to a number of different settings.

Focus on the red and green guns
Sharpness on the red and green guns
Horizontal position and size
Vertical position and size.

Please consult a professional for adjustment on these items as they are all near or connect to parts that have Hazardous Voltage.

Mar 22, 2011 | RCA P52937 52" Rear Projection Television

1 Answer

RCA Convergence problem... some information needed thanks guys


Did you replace the STK730-130 on the Convergence power supply board? You can get one at www.tvrepairworld.com

Nov 05, 2009 | RCA P52937 52" Rear Projection Television

1 Answer

Hi RCA 52 inch part numbers P52937SG


Tries this website for convergence ICS.Must know how to solder?Tv Repair World.com,Ebay.com.

Oct 15, 2009 | RCA P52937 52" Rear Projection Television

1 Answer

Hi i have a RCA P52937SG with the bowing of the screen


The problem may still be on the power supply board (one of the supplies may be missing and) when you unplug the supply both supplies go missing check the supply voltages and repost

Oct 14, 2009 | RCA P52937 52" Rear Projection Television

1 Answer

Big screen tv


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 projeciton 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.

42d3683.jpg

7859b01.jpg

e87380c.jpg
Here is a quick test....

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

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

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

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

69189a5.pngCONVERGENCE SOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you are handy and can follow directions. You can get complete repair kits from TvRepairKits.com or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.

Jul 05, 2008 | RCA P52937 52" Rear Projection Television

1 Answer

Blue horizontal bows/lines


Replace convergence IC's,then check alignment.

Use OEM quality ==I use Panasonic IC's with no call-backs.

T.

Oct 13, 2007 | Samsung PCN5425R 54" Rear Projection...

1 Answer

P52937sg


Convergence circuit repair----about 400.00 at tv shop.
Let me know if you want a detailed how-to.....T.

Sep 07, 2007 | RCA P52937 52" Rear Projection Television

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