SNK Gameroom Classic Machine, adjusting contrast/brightness??

[bb_hood]

I have two of these SNK Gameroom Classic machines, and one of them is a bit brighter than the other, and Id like to adjust it. I bought these used so I dont have the manual or anything, and I was wondering if anyone knows how to adjust the brightness on the monitor. Any advice would be appreciated, thanks

The machine is the one in this youtube clip, that not me though..
http://www.youtube.com/watch?v=DpfDAm-eJHs&feature=watch_response

[Frankie_Says_Relax]

I have one, it's a standard arcade monitor. I believe that brightness is a pot on the board attached to the tube.

I have mine set up with a hinged door on the back so I can easily swap out the sd card with the game images, I'll check the pots later when I get home.

[Frankie_Says_Relax]

http://i22.photobucket.com/albums/b328/FrankieViturello/58b55527.jpg

Interesting. There's a pot on the central board for brightness (far left one, see the little sun icon), there appears to be one for contrast that does not have a pot soldered into it. I assume you can add one if you have the skills, but otherwise contrast looks to be locked down.

Brightness may be all you need though.

[bb_hood]

Yeah, its just the brightness that I want to adjust, and it looks like thats where I can adjust it.
Thanks soo much for the pictures, this really makes my day!!!