repair

I picked up a cheap untested MVS 4-slot and have started to fix it up. It was one of the dirtier boards that I've dealt with and was full of graphical glitches caused by the material build up in the cart slots. This is an ongoing project, so I’ll post photos as I go. Before After First...

I'm getting corrupt graphics from a Raiden II PCB. The sprites are bad and there is a blue grid overlay. Any suggestions on how I can fix this? So far I've: Cleaned and reseated the socketed chips Cleaned the PCB Recapped it Checked for bad traces Test Mode screen is completely corrupt: