Hello everyone. I recently bought a WH20, in the previous owner told me about this issue before I bought it. Now it's time for me to try to fix it.
The issue is, not all the time, but a lot of the time, at the end of a ball, it delays running the bonus routine. Sometimes for 5 seconds, sometimes for much longer.
I've done all the basic things, I've checked all the switches in test mode, made sure all the ones that are supposed to be closed are closed, and all the ones that are supposed to be open are open, everything checks out great. I have tested all the diodes, I did have to replace a couple but the issue has not gone away.
I know it detects the drain, because it will flash BONUS for a brief moment before throwing the score back up, then sometimes going thru a ball search or 2 or 3 before finally doing the bonus routine and continuing on with the game.
Any help and ideas are greatly appreciated!