version	date	remark
2	210304	add 7-digit displays for player 1 - 4, add version nummber, 
		recalculate checksum
		installation notes:
		replace the four player 6-digit displays with 7-digit displays
		Add an additional wire fom A4 (mpu) J1 Pin 7 to every player display pin 12 (don't connect the credit display !)
		burn the U6 file on 2732 eprom
		after power on you will see the version number in the one player
		displays
		
Have fun, 
greetings Oliver

