TORNADO BASEBALL Manufacturer: Midway Year: 1976 Main Board (80-900) Power Connector (18 pin) 1 +5 2 +5 3 +12 4 +12 5 -5 6 +15 7 8 Earth gnd 9 Earth gnd 10 Reset 11 VLED 12 VLED 13 VIND 14 Com 15 Com 16 Com 17 Vid Ret 18 Comp Vid Game Board Connector Component Circuit --------- ------- 1 AD0 A 2 B 3 C 4 D 5 E 6 F 7 H 8 J 9 +5 K 10 +12 L 11 -5 M 12 +15 N 13 P 14 earth gnd R 15 earth gnd S 16 T 17 vled U 18 vled V 19 vind W 20 com X 21 com Y 22 Z 23 a 24 b 25 c 26 d 27 e 28 f 29 h 30 j 31 k 32 l 33 mx0 m 34 mx1 n 35 mx2 p 36 mx3 r