Document Title: [Pole_Position.txt (text file)]
POLE POSITION
-------------
Video board, 30 pins, 15 per side, numbered side is back of board, letters
are on component side. Items in parenthesis aren't listed on schematic:
1 GND A GND
2 +5 volts B +5 volts
3 GND C GND
(keyway)
4 GND D GND
5 GND E GND
6 GND F GND
7 GND H GND
8 GND J GND
9 Red K GND
10 Green L GND
11 Composite sync (inverted) M GND
12 Blue N GND
13 Video return P GND
14 + sense R (+5 volts)
15 - sense S GND
CPU board, 44 pins, 22 per side, numbered side is back of board, letters
are on component side. Items in parenthesis aren't listed on schematic:
1 GND A GND
2 +5 vols B +5 volts
3 GND C GND
(keyway)
4 GND for shifter D GND (coin door 1)
5 GND for brake E GND (utility panel 4)
6 Brake F Gas pedal wiper
7 Start 0 H Steering 2 (steering pin 1)
8 Steering 1 (steering pin 4) J Right coin counter 2 (utility panel 6)
9 Left coin counter 1 (utility panel 7) K Test switch (utility panel 5)
10 Service switch (utility panel 9) L Coin 2 (coin door 2)
11 Coin 1 (coin door 3) M Start 1
12 Shifter N GND
13 (vol. GND) P vol. GND for gas
14 (vol. VCC) R vol. VCC for gas
15 Sound 2+ S GND
16 Sound 4+ T Sound 1+
17 GND U Audio GND for channels 1 & 3
18 Sound 3+ V Audio GND for channels 2 & 4
19 Sound 1- W Sound 4-
20 Sound 3- X Sound 2-
21 + sense Y +5 for steering (steering pin 2)
22 - sense Z GND for steering (steering pin 3)
For upright game, connect the following on the CPU board:
18 to T and 19 to 20 to strap sound outputs 1 and 3 together
15 to 16 and X to W to strap sound outputs 2 and 4 together
7 to M for automatic game start (a start switch could go here)
5 to 6 to account for lack of brake pedal
Audio outputs need to go to an amplifier (won't drive a speaker directly).
Gas pedal is a 5K pot.
DIP 1 9L OR 9E
----------- 1 2 3 4 5 6 7 8
OFF 90 SECONDS
ON 120
ON OFF A PRELIM RACE
OFF OFF B DIFFICULTY
OFF ON C
ON ON D
ON OFF A EXTEND RACE
OFF OFF B DIFFICULTY
ON ON C
OFF ON D
ON OFF 3 # OF LAPS
OFF OFF 4
ON ON 5
OFF ON 6
OFF AVERAGE SPEED
ON HIGH SPEED
DIP 2 9JA OR 7E
--------------- 1 2 3 4 5 6 7 8
OFF OFF OFF 1/1 COIN/CREDIT
ON OFF OFF 1/2 LEFT MECH
OFF ON OFF 1/3
ON ON OFF 2/1
OFF OFF ON 3/1
ON OFF ON 3/2
OFF ON ON 4/3
ON ON ON FREE PLAY
OFF OFF 1/1 RIGHT MECH
ON OFF 2/1
OFF ON 3/2
ON ON 1/6
OFF KPH
ON MPH
OFF ATTRACT SOUND ON
ON OFF
OFF NORMAL
ON FREEZE SCREEN
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