the pacific pinball museum has a twenty grand body.

assuming the score motor is on the bottom of the playfield, if you don't have an answer by monday I'll pull the body and get some pictures and info of the score motor.

it's probably standard for that era, so the picture on the ipdb.org page for "four corners" is what the cam side looks like ... looks like markg's diagram.

if you don't have a scanner or way to process the schematic, please email highest possible resolution picture(s) of the thing to me at [email protected] and I'll get it cleaned up and sent to ipdb. At least one pic having the entire schematic in a single shot is helpful.