Step 1:
Turn the machine off, disconnect every wire connected to the Coin Mech

Step 2:
Remove the note reader. Unplug and remove the coin mech using a flat head screwdriver on the left clip and pushing the top clip with your finger.

Step 3:
Insert the new one, listening for the two clicks when attaching it to the faceplate and making sure it is solid by wiggling it.

Step 4:
Plugging it back in ensuring the grooves match on the white connections then double check the green light and the dipswitches are all good. Plugging it back in ensuring the grooves on both sides match as one side is of a larger groove than the other.