Looking at the A1200 motherboard from above, with the rear connectors at the top, and the front edge at the bottom:
1. The two boards clip over the Lisa and Alice chips, with the ends of the cable (the cable which connects the two boards) facing each other.
3. The socket on the first board (the board that the VGA cable connects to) goes on top of the LISA chip (391227), with the VGA connector facing the rear edge of the A1200.
4. The socket on the second board goes on top of the ALICE chip (391010).
5. Push the boards onto the chips until they snap on with a "click"!
Difficult to explain without a diagram!
Steve.
