NAMCO PACMAN AIR HOCKEY 4P User Manual page 12

Description on locations of controls
PCBoard
Power Supply :
Supplies the power to motherboard and other control cards.
Separate the power point from +5V and +12V , in order not to influence other
components when power falure or instable.
Caution : Left for +5V ; Right for +12V
PCBoard :
Controls the game operation , light signals and sounds of the machine.
NG component can be read and judged by light on board.
Counters :
Controls the number of games , coins inserted and lottery tickets given .
Power Supply
Counter