Hitachi 500 Series, 50-inch, rear projection Tv, not 4 years old has needed two lamp replacements, and now needs a light machine replacement. This was not a smart purchase for us, as the product is not reliable.
Hitachi said to replace the bulb on our 42V710 4-year old tv when our colors looked washed out green/yellow. Made the problem worse; more obvious. TV Repair person verified the problem was the light engine when we told him the Red, Green, Blue color only settings showed good red color, good green color, but the blue only option showed nothing but dark swirls and blotches all over the screen. Hitachi said our set was too old to support and said to contact their "appeals committee" if we didn't like it.
Check out this corporate statement from Hitachi website, "The value we intend to foster and build upon is that of a company trusted by customers and society, a company fully responsible for its actions." Thanks for those beautiful words that mean nothing to me as a customer and member of society who has been ripped off by Hit-ow-chi.
My husband's planning to take our yellowvision out back for target practice!!!