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Picture is bowed down from top left corner to top right corner and bowed up from bottom left corner to botton right corner. Colors are seperated a little in corners and middle top and middle bottom.

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  • darkviper21 May 07, 2008

    Ok my model # is ws-55857

  • atlast0502 Nov 20, 2008

    This is my model, if I have the same problem which convergence ic should we get??

  • Philip Jan 15, 2009

    hi i have the same problem, almost, on a similar model sony, the convergence IC #'s are STK 392 560. the picture jumped about a bit and some times sorted itself out. But now it seems to be stuck on bowed convex top and bottom. I fooled about with the HV reg pot and turned it fully anti clockwise and that sorted it for a month or so with occasional jumping. Then it did the six blinks and the only way to get the picture back was to turn the HV protect pot more anticlockwise. But picture is still bowed, jumps about a bit and tries to fill the screen but seems pretty settled in its bowed state now. Have no test gear am in an isolated part of Fiji, it's either fix it myself or dig a big hole!

  • Philip Jan 15, 2009

    Hello , i have a similiar problem not same but similiar 57" sony, convex curve at the top and bottom of screen, picture jumps about a bit, convergence IC heatsinks very hot, too hot to touch. it was doing this before abit and then would right itself. Perhaps do a six blinks every now and then. I adjusted the HV regulator fully anti clockwise and that sorted it for a a few months. then 6 blinks today and I adjusted HV protect fully clockwise and that got the picture back but the convex curvs wont go away now, screen tries to fill then drops back to convex top and bottom.picture OK apart from that.

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Convergence ICs are faulty what is your model number? I can post which ICs you need and where you can get replacements that come with free instalation instructions so you can do the repair yourself

Posted on May 07, 2008

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1 Answer

RCA rear projection tv picture bowed to middle. Red Green Blue colors have been seperated on screen.


If I had to guess I would say it's either the DLP chip or the prism. Simply put the lamp lights the DLP chip which directs the light into a prism and then onto the TV screen. The prism or prisms are responsible for aligning the colors correctly. The DLP chip is essentially a million little moving mirrors which direct light

If you're at all comfortable with electronics you might want to open the TV up to take a look. You might get lucky and find something obviously wrong with the TV. Sometimes adhesives melt and parts slip out of place. If your DLP chip is blown there isn't much you can do. You're probably right that this would cost a lot to fix and not be worth it.

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Picture is bowed at top and bottom picture perfect in middle of screen; colors seperating in corners convergrence is perfect


Projection sets have two very common problems outlined below.

The first common problem is convergence

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. The TV can also shut down when the convergence starts to fail.

Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

Convergence problems are very common on all Projection TV sets including Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer, Hitachi,Mitsubishi,Zenith, RCA and others.


You can more info and a DIY convergenece repair kit with instructions from TV Repair Kits using the link at the end of this article.

Here are some of the most common problems with these sets...

*Screen Looks 3-D
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*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

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bb0cf99.pngSOLUTION

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

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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I have a Hitachi 46F500 tv and the red crt bowed


I just had the convergence replaced and have a great picture

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Green color seperation multiple images convergence will not fix


Your TV most likely a convergence 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.
Here are some photos of convergence problems.

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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.

0667c5f.pngSOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

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Colors have separated. and top and bottom af pictures are bowed. i have a sony kp-46s55. its about nini years old and it was free. currently the colors are separated and the top and bottom of the pict


nbad convergence ic , this need to be done by a profecional tv tech , because need to check for the pico fuse and resistor around the area

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You have a convervence problem. You will need to replace both convergene chips and possibly the resistors. You can get more information and a repair kit with instructions from www.TvRepairKits.com 

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If anyone can send me the service manual, I would appretiate it. Thanks.

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Replace Both of your STK ICs convergence ICs STK392-110 use 150s Better ICs Call Mats 1-800-628-1118 Also RK42 RK46 RK48 RK50 RK54 RK58 RK60 will have to get back to you on resistor values

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Rca tv r52wh73 the picture is bowed at the top and bottom also the colors red green and blue wont match together as one picture


rca t v r52wh73 the picture is bowed at the top and bottom also the colors red green and blue wont match together as one picture

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