My Sharp 61 inch projection HD tv has a blue band of shadow that dips below the image. Looks like 3D without the glasses.

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

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

Thats a convergence failure and will require installing a convergence repair kit. You can get convergence repair kits for Hitachi models at www.tvrepairworld.com they come with the ICs low ohm resistors and the CD with repair instructions.

If your TV looks 3D, warped, or distorted it likely has a convergenge problem.
If however it just looks dull, washed out, redish, or if it looks like objects on the screen have halos the fluid in the lens has soured.
You can search google for parts or you can get the parts with repair instructions from sites such as www.TvRepairKits.com

Convergence ICs are bad. STK392-120

need to replace convergence control chips

The cost I don't know, but this can be fixed. I'd say shop around a bit. Make sure the repair person is certified for your TV's manufacturer. There are generally 3 lamps in projection T.V.'s, Red, Green, and Blue. They have to be aligned for the TV to project a clear picture. A credible TV repairman should be able to fix it. Depending on if it's new enough to be under warranty they may cover it as well. Really the only reason to get rid of it is if you want to get a new TV anyway. Depends on the cost of having the lamps aligned.

sounds like 1 of the convergence chips are gone theres 2 of them and better off replacing both as the other would just go a month down the line there might also be a resister or 2 gone, the price for that kind of job is around 150 +vat.

hope this helps

http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220

http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
replace convergence ic