Pin 4: From relay RLY4 normally open terminal Pin 3: From relay RLY3 normally open terminal Pin 2: From relay RLY2 normally open terminal Pin 1: From relay RLY1 normally open terminal Pin 4: Relay RLY4 coil input (anode side of the diode D7) Pin 3: Relay RLY3 coil input (anode side of the diode D6) Pin 2: Relay RLY2 coil input (anode side of the diode D5)

Pin 1: Relay RLY1 coil input (anode side of the diode D4) CN6 is the output from the normally open side of the relay contacts. IC2 then sends it's output to connector CN4.Ĭonnectors CN2 and CN5 are straight pass-through only.Ĭonnectors CN3 & CN6 and the relays are relay control portion of the board. IC1 feeds it's output to the input of IC2. I will explain the functions I see on this board judging by the pictures submitted.Ĭonnectors CN1 & CN4, integrated circuits IC1 & IC2, and the circuitry on that side of the board all work together. I did not lay it out but the rows of 3 components pictured opposite the fuse seem to be tied to the individual reels and buttons and operate from one of the ICs I cannot find a path from what I believe controls the reels to the relays, I am now of the opinion that the relays control the Jackpot modes. Do we have 2 types of old stop boards and we never realized it? I also noted that what I think is the Jackpot/Payout control on your example is 6 pin while mine is 8. If you have PERTINENT information to add to this post please do, otherwise please don't. I thought it would be better understood in one area. This information is from other post's from Ken Layton, and teqkng.

Pachislo skill stop slot machine