Omega Race PCB in a cocktail or sit down unit, how?

ifkz

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Omega Race PCB in a cocktail or sit down unit, how?

Does anyone know how one would go about converting an upright Omega Race PCB to work in a cocktail or sitdown? Does it do it automatically some how? Is it a jumper on the board?

(Omega Race URs use a mirror to reflect the image so the image is generated backwards)

I notice there is only one ROM set available, so...what is the secret?

I would like to see how feasible it would be to squeeze an Omega Race cocktail into my collection. A slightly crazy idea given that I have an upright. I have the hard part done, a backup boardset.
 
I'm fairly certain that the image is not "generated backwards". I'm sure the image is generated just normally and the monitor yoke is flipped to show the image backwards.

As for cocktail mode - it looks like it's done via the wiring harness (like some other games do). the wiring diagram in the manual shows a couple extra wires on the connectors for the cocktail harness. These are probably grounds that activate the flipping feature. Dig Dug, Pac-Man, and other games do something similar....

EDIT - apparently dip switch #8 on the switch bank farthest from the edge of the daughtercard is turned OFF for cocktail mode...
 
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