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Gallag/Zig Zag pinouts

Gallag - 44-pin Galaga clone board
Zig Zag - 44-pin Dig Dug clone board

Gallag Notes:

There are two boards, both with blue or green solder masks. The top one (slightly larger) is the CPU board, has the 4 processors and program EPROMS, and holds a small credit-card sized daughter board that plugs into a 28-pin DIP socket near the EPROMS. It also has 'DG-09-2' silk-screened in one corner near the main connector. The bottom board is the video board. It has a small 5-pin connector in one corner for the video output signal, wired as shown on the right.

Zig Zag Notes:

These are two boards very similar to the boards above. The CPU board is labeled PCB-X and appears to be the same as the Gallag CPU board. The Video board is labeled PCB-Y, and also has a daughter card, this card is labeled NV284/N0015 and fits into two narrow 20-pin sockets. The video board also has the same 5-pin video connector as Gallag. The pinouts are the same with the addition of the Up and Down joystick connections for both players.

 
Parts Side  Solder Side




GND A 1 GND
GND B 2 GND
+5 VDC C 3 +5 VDC
+5 VDC D 4 +5 VDC
P2 Up E 5 P2 Down
P1 Down F 6 Table1
P1 Right H 7 P2 Right
P1 Left J 8 P2 Left
P1 Fire K 9 P2 Fire
P1 Start L 10 P2 Start
M 11 Coin
N 12 Test/Setup
P1 Up P 13
Video Blue2 R 14
Video Green2 S 15
Video Red2  T 16
Video Sync2 U 17 Speaker +
+12 VDC V 18 +12 VDC
+5 VDC W 19 +5VDC
+5VDC X 20 +5VDC
 GND Y 21 GND
 GND Z 22 GND
5-Pin Video Header

  1. Video Red
  2. Video Green
  3. Video Blue
  4. Video Sync
  5. Video Ground
Pin 1 above is closest to
the edge of the board.
 

1 Ground this pin for Cocktail mode.
2 Jumpered from the 5-pin connector on the video board. (See connector pinouts on the left)

NOTE:

The order of the Red, Green & Blue connections on the card-edge vary from board to board and may not even be connected at all.
 
Gallag 2114 RAM error codes:

Video Board
6FRAM 2L
6HRAM 2H
6JRAM 4L
6KRAM 4H
6LRAM 3L
6MRAM 3H
  
CPU Board 
5Dthe game displays "RAM OK" but you can't exit the setup page
5Cthe game displays "RAM OK", then reboot forever


 


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