Omega Race, Midway 1981 ----------------------- MOTHER BOARD PINOUTS J5 6 Position 1- GND 2- GND 3- KEY 4- 8 Volt Unregulated (this is used for the BATT Charger circuit) 5- +5VDC 6- +5VDC J6 3 Position 1- 18V AC (low) 2- 18V AC Centertap 3- 18V AC (high) J7 18 Position THIS IS THE CARD EDGE CONNECTOR 1-=20 7- KEY 8- Y OUT 9- X OUT 10- (To Logic Board J1 Pin 19 ~ Ground for Cocktail?) 11- Z OUT 12- 13- 14- 15- Z GND 16- X GND 17- Y GND 18- LOGIC BOARD J1 22 Position 1- Coin 2 Normally Closed 2- Player 1 Thrust 3- Tilt 4- 5- Player 2 Steering Encoder Bit 2 6- Player 2 Steering Encoder Bit 0 7- 8- Player 2, 1 Credit light 9- Player 2 Steering Encoder Bit 3 10- Player 1, 2 Credit light 11- Player 2 Steering Encoder Bit 4 12- Player 2 Steering Encoder Bit 5 13-=20 14-=20 15- 16- Coin 2 Meter 17- Player 2 Steering Encoder Bit 1 18- Coin 1 Meter 19- To Mother Board J7 pin 10 (Cocktail mode only?) 20- Player 2, 2 Credit Light 21- Player 1, 1 Credit light 22- +5VDC SENSE on Power Supply Board. J2 15 Position Connector 1- Switch GND 2- Player 1 Steering Encoder Bit 2 3- Player 1 Steering Encoder Bit 3 4- Player 1 Steering Encoder Bit 5 5- Player 1 Steering Encoder Bit 1 6- Player 1 Steering Encoder Bit 4 7- Player 1 Steering Encoder Bit 0 8- Player 1 Fire 9- Test 10- Coin 2 11- Coin 1 12- Coin 1 Normally Closed 13- KEY 14- Player 1, 1 Credit 15- Player 2, 2 Credit J3 15 Position 1-=20 2- SPKR Common to both 3- KEY 4- SPKR 1 5-=20 6-=20 7- SPKR 2 8- 9- +12 VDC 10- GND 11- Player 2, Fire 12- Player 2, 2 Credit 13- Player 2, 1 CreditGAME OPTIONS: (SW1 = 8-position switch closest to the edge of the daughterboard) 1 2 3 4 5 6 7 8 Meaning ------------------------------------------------------------------------ On On 1st bonus ship at 40000 Off On 1st bonus ship at 50000 On Off 1st bonus ship at 70000 Off Off 1st bonus ship at 100000 On On 2nd bonus ship at 150000, 3rd at 250000 Off On 2nd bonus ship at 250000, 3rd at 500000 On Off 2nd bonus ship at 500000, 3rd at 750000 Off Off 2nd bonus ship at 750000, 3rd at 1500000 On On 1 credit = 2 ships, 2 credits = 4 ships Off On 1 credit = 2 ships, 2 credits = 5 ships On Off 1 credit = 3 ships, 2 credits = 6 ships Off Off 1 credit = 3 ships, 2 credits = 7 ships On On ( Unused ) Off On ( Unused ) On Off ( Unused ) Off Off ( Unused ) PRICING OPTIONS: (8-position switch farthest from the edge of the daughterboard) 1 2 3 4 5 6 7 8 Meaning ------------------------------------------------------------------------ On On Off Coin switch #1: 1 coin 1 credit Off On Off Coin switch #1: 2 coins 1 credit On Off Off Coin switch #1: 2 coins 3 credits Off Off Off Coin switch #1: 3 coins 4 credits On On On Coin switch #1: 4 coins 5 credits Off On On Coin switch #1: 1 coin 5 credits On Off On Coin switch #1: 1 coin 3 credits Off Off On Coin switch #1: 1 coin 2 credits On On Off Coin switch #2: 1 coin 1 credit Off On Off Coin switch #2: 2 coins 1 credit On Off Off Coin switch #2: 2 coins 3 credits Off Off Off Coin switch #2: 3 coins 4 credits On On On Coin switch #2: 4 coins 5 credits Off On On Coin switch #2: 1 coin 5 credits On Off On Coin switch #2: 1 coin 3 credits Off Off On Coin switch #2: 1 coin 2 credits On Coins required Off Free play (game always has 4 credits) On Upright/Mini/Cockpit cabinet Off Cocktail cabinet 14- Player 2, Thrust 15-