How To Wire Up A Color Raster Monitor To Use In Space Invaders: On the SI mother board there is a plastic socket that the daughter board plugs into. Right next to this socket there are 2 resistors right next to each other. There's nothing else around this side of the board except 3 diodes and 4 25v 10uf capacitors. So you solder wires to the legs of those 2 resistors. The legs that are FURTHEST from the edge of the mother board. The wire from the resistor CLOSEST to the daughter board socket goes to monitor's red, green, blue tied together. The wire from the resistor FURTHEST from the daughter board socket goes to monitor's sync. That's it.