"Operation Wolf" "G" Connector Solder Side Components Side Switch ground A 1 Switch Ground Video ground B 2 Video Red Video Blue C 3 Video Green (not used) D 4 Video Sync (not used) E 5 (not used) KEY F 6 KEY (not used) H 7 (not used) Coin Switch B J 8 Coin Switch A Coin Meter B K 9 Coin Meter A Coin Lockout B L 10 Coin Lockout A Tilt Switch M 11 Service switch (not used) N 12 Start Switch (not used) P 13 (not used) (not used) R 14 (not used) (not used) S 15 (not used) (not used) T 16 (not used) (not used) U 17 (not used) (not used) V 18 (not used) (not used) W 19 (not used) VR 1 X 20 (not used) VR 2 Y 21 Trigger 1 Switch VR 3 Z 22 (not used) "T" Connector Solder Side Components Side Ground A 1 Ground Ground B 2 Ground Ground C 3 Ground Ground D 4 Ground (not used) E 5 OUT (not used) F 6 (not used) KEY H 7 KEY (not used) J 8 (not used) (not used) K 9 (not used) (not used) L 10 (not used) (not used) M 11 (not used) (not used) N 12 (not used) (not used) P 13 (not used) (not used) R 14 (not used) +5 Volts DC S 15 +5 Volts DC +5 Volts DC T 16 +5 Volts DC +5 Volts DC U 17 +5 Volts DC +5 Volts DC V 18 +5 Volts DC "H" Connector "X" Connector "M" Connector 1 Ground 1 Right Speaker (+) 1 M+ 2 Ground 2 Right Speaker (-) 2 M- 3 Ground 3 Left Speaker (+) 3 (not used) 4 Ground 4 (not used) 4 Trigger 2 Switch 5 +5 Volts DC 5 Left Speaker (-) 6 +5 Volts DC 7 +5 Volts DC 8 -5 Volts DC 9 +13 Volts DC 10 KEY 11 +12 Volts DC 12 +12 Volts DC Unfortunately, I can give no insight on exactly what "M+", "M-", and the "VR" connections do: There will be the opto for the gun, the coil for the gun kick-back, the sound potentiometer ("VR 1" to "VR 3".) A few years ago, I could have told you exactly where everything would be connected to, but not today :( Good luck and keep on gaming! :) Sincerely Yours, David Choi (DCI #3)