Neo Geo 4 Slot “Big Red” MVS 25-4 Arcade Machine

Neo Geo 4 slot Video Arcade Marquee neo geo 4 slot Neo Geo Mvs Motherboard Mv neon shapes slot Where is the Work Ram in the 43256 RAM assembly of the Neo Geo 4 slot? I am getting the following errors *Attached And I want to get in

neon slot 777 pcb works 100% Neo Geo MV-4F 4 Slot is one of the many variations of the Neo Geo Mother Board This one allows the operator to plug in FOUR separate games