Game Gear brightness/contrast adjustment?

Is there any way to mod a GG to alter the brightness/contrast? I just got one of the Majesco ones, and it's WAY too bright...
oh i did this once. You don't really need to mod it just get some one to fit the screen with a piece of tinted plastic to bring the brightness down. It'll work. IT's just like replacing scratched gameboy screens only... you know on a game gear.