Document Title: [SEGA_3.txt (text file)]
Crackdown, Hot Rod, Gain Ground, Shinobi, Altered Beast, Golden Axe, Alex Kidd, Alien Syndrome,
SEGA 28 pin input/output assignments (SEGA System 24)
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Component Side Pin # Solder Side
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GND 1 A GND
GND 2 B GND
+5 Volts DC 3 C +5 Volts DC
+5 Volts DC 4 D +5 Volts DC
+12 Volts DC 5 E +12 Volts DC
Coin Meter 1 6 F Coin Meter 2
7 H
Player 1 Switch A 8 J Player 2 Switch A
Player 1 Switch B 9 K Player 2 Switch B
Player 1 Switch C 10 L Player 2 Switch C
11 M
Player 1 Down 12 N Player 2 Down
Player 1 Up 13 P Player 2 Up
Player 1 Right 14 R Player 2 Right
Player 1 Left 15 S Player 2 Left
16 T
17 U
18 V
19 W
Coin Switch 1 20 X Player 1 Start Switch
Coin Switch 2 21 Y Player 2 Start Switch
Test Switch 22 Z
Service Switch 23 a
Speaker (+) 24 b Speaker (-)
Monitor Red 25 c Monitor Green
Monitor Blue 26 d Composite Sync
GND 27 e GND
GND 28 f GND
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