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I have a rear projecrtion tv, about 3 years old and I turned it on today and the screen is curved and the colors or separated like a rainbow

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Converge outputs

Posted on Oct 08, 2008

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When I turn the tv off, there is a rainbow color at the top of screen. When I turned the tv on, the screen was 1/4 of the size and distorted. Also the sound would not come out of the speakers. The tv is...


Hello Roger,
Sorry to hear you are having tv problems. This problem is caused by deflection circuit failure. That's the part that makes the electron beam sweep across and fill the screen. Depending on the size of the TV, you may find it better to buy new. A new board will not be available for a set that old. You may find a local shop that has the know how to repair Deflection Brds.

Jan 06, 2010 | Sony KP-61XBR48 61" Rear Projection...

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There are flickering, rainbow-like color bands running across the screen, especially in the component inputs, not so much using the HDMI input, but still there.


Hi,if your tv is and Lcd rear projection it will be the light engine that needs replacement.Because lcd technology uses 3 chips green,red and blue that create the image and colors.When they start to fail you will get what you are getting color discoloration and rainbows.If your tv is DLp it will be the dmd chips which basically its like the lcd chips but instead of 3 chips its only one that creates the image.Hope this works God bless you!

Oct 06, 2009 | Mitsubishi WD-62525 62" Rear Projection...

1 Answer

Curved in at top and bottom and rainbow colors on bottom


REPLACE ALL STK?????? CONVERGENCE AMP IC'S & CHECK RESISTORS FOR THAT CIRCIUT

Apr 12, 2009 | Mitsubishi WS-55809 55" Rear Projection...

1 Answer

2 separate colors on screen


sounds like your convergence IC's have finally gone bad.. they seem to last 5 years on average.. have a look here: http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Dec 19, 2008 | Sony KP-53V75 53" Rear Projection...

1 Answer

Old toshiba


Hi Veronica,
I need to know exact model number of your Toshiba TV to help you out.
You can find it at back of TV on some kind of sticker.

Oct 11, 2008 | Zenith R49W36 49" Rear Projection HDTV

2 Answers

Rainbow on the screen


Do you have any larger speakers close to you tv. Or any magnets been neer it. If you unplug it for a while the tv should have remove the rainbow

Aug 28, 2008 | Panasonic PT-53TW53 53" Rear Projection...

1 Answer

Rainbow ghosting


You need to replace both convergence ICs there numbers are STK392-110 this is a easy inexpensive repair if you do it yourself. Takes about an hour beginning to end. You can order your parts at the following link and they provide free instructions with pictures and also free on line tech instant messaging while you do the repair. I am one of the support techs for them I do the instant messaging during the repair. Heres the link. You'll need two STK392-110 Convergence ICs.
http://servicemanuals.vstore.ca/

Apr 12, 2008 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

3 curved lines top & bottom/blurred picture


This indicates a convergence problem..convergence power supply probally.. however ive seen 2 other cuicits cause this ..

Sep 24, 2007 | RCA HD52W59 HDTV Projection Television

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