Hi, I've been having some odd problems with the Genesis model 2 I just hooked up. Sometimes when I start it up, the game will be in black and white and have vertical lines going through the screen. If i turn the power off and back on it will usually fix it, but not always. Sometimes I have to cycle the power multiple times for the color to work.



After a few restart attempts:


I took a look at the board and I think there's an added circuit board, but I'm not sure. Here's a pic:


There's also a couple wires on the bottom side that were soldered on/near the power input, but I forgot to grab a picture of them. There's two chips on the board. It's glued down so it's hard to get a good look at it, but it says ©1993 Sega, so I guess it's a factory mod.

Any thoughts?