I checked mine and I have the exact same two wires "loose". How are you coining up if it does not work? I know this sounds stupid but is your board set on free play? When you turn it on, are both the start buttons flashing? If it is, check your 8 position toggle switch on the center of the board. "Normally" you should have 1-8 in this order on off on on on on on on. If all 8 are set to on, it will be in free play and the coins will not work. Other than that, you will have to start checking the wires. I have the wiring diagram and it goes through one square connector just inside the door straight to the edge connector on the main board. Check the edge of the board and the connector. If you say the coin counter is working, The board is recognizing a coin being inserted.