I'm working on a 1984 bally/midway 10 pin deluxe bowling arcade. I just got the original schematics in the mail. I want to try hooking up the board to the monitor to see if I get anything on screen. Below is an image of the position of the pin outs from the board to the pins on the monitor. Do the numbers just indicate the pin positions on the pcb and which pin to connect too on the monitor pins? If so, does that mean that the 8 pin on the pcb connects to both the 1 and 2 pins on the 3 pin position on the monitor. And 1 last question...what does the 'key' mean? Looks like it doesn't connect to anything so would I just leave it?. Thanks for the help in advance.
HA! I was just dealing with these same schematics today with my Journey.
Key means a blank space. No pin.
Yes, 8 goes from the board to both pins one and two. Looks like composite sync?
Pin 1 from the board goes to pin 6 on the monitor (red)
Pin three goes to pin 5 on the monitor (green)
pin 5 to 4, and pin 6 to 3
pin 7 goes nowhere.
