Monster Bash
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Power
-----

10-pin, side of cage

 1 - -12VDC
 2 - +12VDC
 3 - AC (3VAC)
 4 - GND
 5 - GND
 6 - GND
 7 - -5VDC
 8 - +5VDC
 9 - +5VDC
10 - +5VDC

Sound Board
-----------

 1 - Audio out
 2 - Empty
 3 - Empty
 4 - Shield

Video board
-----------
1 - nu (not used)
2 - nu
3 - !srl (not used)
4 - vsync
5 - hsync
6 - !csync
7 - csync
8 - !hsync
9 - !vsync
10 - nu
11 - blue
12 - nu
13 - green
14 - nu
15 - red

CPU Board
---------

 1 - Coin Counter B +
 2 - Coin Counter B (GND)
 3 - Coin Counter A +
 4 - Coin Counter A (GND)
 5 - Coin Mech A (NO)
 6 - Coin Mech A (NC)
 7 - Coin Mech B (NO)
 8 - Coin Mech B (NC)
 9 - Service (NO)
10 - Service (NC)
11 - Reset (NO)
12 - Gnd (for coins, service and reset)
13 - nu (not used)
14 - up
15 - 1 player
16 - left
17 - gnd
18 - nu
19 - 2 player
20 - right
21 - down
22 - gnd
23 - nu
24 - nu
25 - nu
26 -
27 -
28 -
29 -
30 -
31 -
32 -
33 -
34 -
35 -
36 -
37 -
38 -
39 -
40 -