How do you get a fullscreen on hitachi lcd tv?

SOURCE: Wide Screen vs Full Screen

look for screen format in video mode menu or if you have original remote you have that option in your remote

SOURCE: Hitachi 42" Wide Screen TV - color seperation, double images

Replace Both of your convergence ICs they are big black ICs and ck resistors RK4246,50,54,58,62 i have the values if you need them they are 1.5ohms up to 3.9ohms.ICs will have STK392-110s if this is the number on yours upgrade to 180s

SOURCE: need to move a 57 inch hitachi rear screen proj TV

No, do not attempt this as you will damage the unit if you try to take it apart and reassemble it. They are not built for dis-assembly and re-assembly. They are easily damaged. Rather, rent a large industrial hand truck and use several straps to secure it to the hand truck and about three men to help you. It is about the only way to do it.

Be careful... there is a fragile mirror inside which can be broken if bumped abruptly.

SOURCE: Hitachi C50-FD2000 Screen Distorted

Projection TV sets are known to have two common problems. The first problem that is common to these sets is convergence failure. When this happens the TV will usually look 3D, Wavy/Distorted, etc. It may also shutdown and blink an error code.

The second common problem with Projection TV sets is dull video, halos around objects, white looking video, or red overpowers the screen. This is commonly caused by the fluid in the lens being clouded overs. To get fixed either call in a local TV repair company or goto sites such as Tv Repair Kits to get a repair kit with instructions. Here is there link.

http://www.tvrepairkits.com/xcart/home.php?partner=papa1dude

They have put together complete kits for most models that include the parts, step by step photo instructions, repair assistance, etc.