Document Title: [Omega_Race.txt (text file)]
Omega Race, Midway 1981
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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
<no connects 1-7>
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
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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-
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