Bally OE14 Operating Manual page 4

BLOCK DIAGRAM-ELECTRONIC PINBALL GAME
->
SOUND
MODULE
KEYBOARD
INPUTS
DISPLAY
6803
DRIVER
CONTROLLER
MODULES
MODULE
6803
POWER
MODULE
DETACHING OF PIN-GAME BACK BOX
When the back box is in an up-right positon and
the 3/8" hold-down bolts are removed, the back
box can be removed from the main cabinet by
lifting the right corner of the back box (about3/4")
and pulling it slightly towards you. Now both
hinges are disengaged and the back box can be
removed.