Hi,
The same thing recently happened to my set, (Magnavox 51MP3964H/17 ) Rainbow effect ..... you have to replace the convergance chips or swap out the boards. I had a repairman do it for me, 300 bucks plus a charge for the service call. your looking at at least 400 and make sure they use the best chips, no generics or they wont last. Good Luck!
"Hope is fast and flies with Robins wings"
Hyperios33, November 2008
