Tv has worked great for 8 years. yesterday, only colors were red and blue and the image was not aligned. any ideas as to what is wrong?

Sounds like you need to do a color convergence. If you still have the owner's manual, it will give great detail on how to do this. The convergence menu is accessed from the video menu on the tv.
The tv has three color picture tubes, red, blue and green. The convergence alignment adjust each tube so that color from each tube overlaps each over to create a white image on the screen. Most tv's only allow you to adjust the blue and red colors.
Convergence should be performed each time the tv is moved and at least once annually.

These procedures are from the owners manual, go into menu and then picture quality and then: Convergence The Convergence feature lets you adjust the TV’s three tubes. When the TV tubes’ images are precisely aligned, they create the color images you see on the screen. Over time, the picture can drift out of alignment (this is normal). If your picture seems fuzzy or has a yellow tint, using Convergence could correct this misalignment. Only one convergence is needed for all inputs, regardless of the signal format. Note: Make sure the TV has been on for at least 30 minutes (TV needs to warm up for best results) before starting Auto Converge or Red/Blue Centering. When you select the Convergence feature, a submenu appears with three options: Auto Converge Automatically aligns the projection lenses to self-correct color images. You’ll see flashing squares of color dance across the screen (this is normal). Note: After performing auto convergence, use the Blue Centering and Red Centering menus to fine tune convergence in the center of the screen, if necessary. Blue Centering Aligns the blue and green images to fine-tune the picture. Red Centering Aligns the red and green images to fine-tune the picture. Note: The ability to change channels is disabled when adjusting the convergence options. The TV must be tuned to a usable signal to converge the picture.

Yes! an idea that the flyback transformer is shot!


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Sounds like a convergence IC problem, you will need to replace them'

Heres a quide
see the before and after pictures to verify your problem
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

you have to make the alignment for all 3 formats....standard....1080i...and 480i

Your tv is crt-based and is out of convergence. In other words, the settings for keeping the Red, Green and Blue images aligned have drifted and must be reset. This is common with CRT projectors and CRT rear projection tvs.

Refer to your owners manual for instructions on re-aligning it.

Push your red component cable firmly in the tv and the cablebox and you will be good to go.

Thanks
Josh

What do the colors look like? Does it look like you have more than one image, and the trailing edge of the second image is in a primary color like red or blue??
Bill

Hi

pls check the board before the color wheel, as it is noticed that this problem comes with the main PCB Board.

Viren

Convergence alignment issues are common to all rear projection
TV's....Repair requires replacement of STK IC's on large heatsink.
After repair, alignment often returns to normal......T.