I have searched for 2 days on the forums and can’t find this issue, but I am certain someone has had it before. Here goes. The castle lock optos were only registering opto 1 and 2. Opto 3 was dead. Also, the coil to release the ball into the shooter lane would drop, then back up so fast a ball didn’t have time to drop. After multiple switch tests, opto tests, etc I ordered the Homepin 10 opto board. Once installed, all 3 optos now register, and in the correct order. The issue is still the quick drop and back up of the castle lock coil. Any ideas on what controls the speed of this coil action? Currently there are no errors on the machine and everything else works like it should......a rarity for these things. Haha. Thanks.