Wasn't sure from your post if you had the startup sequence or not so I am attaching it. I had trouble with the AX nad BX relays. It took several tries before I got them adjusted correctly. I also had one switch (B1) on the score motor that had too large of gap. It checked out ok when using a DMM, but as soon as I decreased the gap things went much better. If you aren't aware of it visit (http://www.pinrepair.com/em/index.htm) and/or (http://www.pinwiki.com/wiki/index.php?title=EM_Repair)
Card Whiz Start Up Sequence (resized).jpg