Ok Gav .
With the 'A' player switch forced open ..
'8' and '9' relay only activate when 1 pt card reel is on 8 or 9 (as they should)
Player 1 does not bust on 20, but player 2 does .. though note that in the manual it states that this switch is in player bust cct for player 1 only
Something interesting though .. with the game in play I can't get any resistance reading on my meter looking between anything and ground