you can download the manual here:
before plugging it in, you may want to:
1] manually step up and reset the stepper units. Those are the things on pages 210-213 in the manual (that manual starts on page 209 ). The wipers should whizz back to the reset position without dragging/slowing from the 1-2 steps up and from the top step.
2] remove the plugs between head and cabinet/playfield, clean off the black stuff on the plug pins, squeeze the sockets between thumb and finger along the length of the socket to bend in the outer tabs a little and stick the plugs back in. The plugs should take a little oomph to seat.
3] spin the fan blades on the control unit (metal shelf in head) and mixer (top of back door) motors with your finger. If you can spin the fan a lot and the shaft turns as the clutches slip, you are safe to plug it in. If you try spinning the fans and it's like winding up a rubber band propeller and it never breaks the shaft free, stop. You will need to take apart the shaft and clean the probably dried up lubricants and probably take the motors apart to clean and regrease.
next, manually add a few credits to the replay register, plug in the game and turn it on. Unless the game was modified for free play, the credits should be removed. If nothing happens, are the motors spinning? (did ya do the fan blade thing above?).
now flick the coin switch down. Don't hold it down or the game will tilt.
- the timer cams on the metal shelf in the head should release
- the mixers and spotting wipers on the top of the back door should spin
- if the playfield shutter is closed it opens to dump the balls
- lights will flash on the backglass
- the scores will all move to at least the minimum/4 level
- a ball should raise
- and the ABCDE lines will return to their home position.
if the coin switch is dead, you can go in the back and manually close the start relay to see what happens.
repeated "cycling" of the machine should occasionally increase the scores or enable features like the ABCDE lines. As the scores increase and features enable, it becomes less likely that something will improve when cycling again. You always get the light flashing, tho.
the A-E rail buttons let you move the card numbers on the backglass left and right one position when those lines are enabled by repeated coin play.
the general game operation is similar for most bingos that aren't 6-card ones, so peek at some youtube videos like this one will give you an idea how it works:
he's pushing the button kinda fast tho and possibly aborting score/feature improvements.