OK it is a Mikhon cham II . These units require a CON1 or a CON2 to operate in the home environment. I can not tell from the photos if one of these units is in the machine.
Follow the ribbon cable from the display to the circuit card with the four LEDs (two green and two red) that are next to each other. That is the cham II board, there will be wires going to the power supply right below it and other wires going somewhere. I need to see what the other wires are attached to. Send more pictures.
Questions:
Has this progressive ever worked outside the casino for home use.
If the answer is yes then the wires in question will find their way to a CON1 or 2 unit and we can get you going.
If the answer is no then the most cost effective method is you will need to replace that cham board with a cham II+ or also called cham II stand alone in order to get your progressive functional in a home environment.
More to come after we see pics
Rich
Cowboy your call move topic to Mikhon progressive systems board