Bought the board a number of years ago and installed with no issues. The game doesn't get used a lot as it always kicks my ass and my attention goes to other games. Recently I fired the machine up and got a credit dot with test message of "clock is broken". When I go into clock test mode some times the hands will go around and other times they don't move at all. If the do move the minute hand is only registering on the 6 & 12 opto, not the 3 & 9. It seems like the hours hand is registering as it may start at 0 and then have a number there after a couple of rounds of the minute hand.