Gallag Pinout

Galaga pinout 44-pin card-edge, Bootleg Galaga board Marked as follows Board Label CPU MGG-703A VIDEO MGG-703B This two board stack is very large, the boards are approx 10 1/2" wide x 16" long. The CPU board has 4 Z80's and 7 2732s. The sound amp is an MB3712 and is located in the top left corner if you have the board oriented with the card-edge pointing up. On the right side of the board, there is a 50 pin ribbon cable and one on the bottom in the center. The video board is almost the same size as the CPU board, just 1/4" shorter. The Video board has the normal 6 2114 rams and space for either 2 2148 RAMs, or 8 2147 RAMs. Parts Side     Solder Side GND A 1 GND Speaker - B 2 Speaker + Lockout Solenoid C 3 Coin Counter 1 P1 Start Lamp D 4 P2 Start Lamp +12 VDC E 5 +12 VDC +5 VDC F 6 +5 VDC GND H 7 GND Service J 8 Test Coin 1 K 9 Coin 2 P1 Start L 10 P2 Start P1 Fire/Jump M 11 P2 Fire/Jump P1 Left N 12 P2 Left P 13 P1 Right R 14 P2 Right S 15 T 16 U 17  Video Green V 18 Video Blue  Video Red W 19 Composite sync X 20 Coin Counter 2 Y 21 Table1  GND Z 22 GND 1 Ground this pin for Cocktail mode The most notable thing about this bootleg is that it has the same pinouts as a Midway Galaga board, but no 3-pin power connector on the CPU (But there is space for it if you wanted to populate it) and the monitor connections are on the card-edge instead of a separate 6-pin video connector on the Video board. There are two banks of 8 switch dip-switches and they have the same settings as a normal Midway Galaga board.