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JAMMA Standard Pinout

JAMMA (Japan Arcade Machine Manufacturers' Association) is a standard 56-way connector used on many arcade boards to simplify conversion of cabinets from one game to another. The majority of games use a subset of this pinout. Some games (e.g. Street Fighter) which need extra buttons have extra connectors for these additional controls. The JAMMA connector is a 3.96mm-pitch edge connector (male on the game board).

SOLDER SIDE # # PARTS SIDE
GND
A
1
GND
GND
B
2
GND
+5V
C
3
+5V
+5V
D
4
+5V
-5V
E
5
-5V
+12V
F
6
+12V
Key, no pin
H
7
Key, no pin
Coin counter 2
J
8
Coin counter 1
Coin lockout
K
9
Coin lockout
Loudspeaker (-)
L
10
Loudspeaker (+)
NC
M
11
NC
Video analog green
N
12
Video analog red
Video composite sync
P
13
Video analog blue
Service switch
R
14
Video ground
Tilt/Slam
S
15
Test
Coin B
T
16
Coin A
Player 2 Start
U
17
Player 1 Start
Player 2 Up
V
18
Player 1 Up
Player 2 Down
W
19
Player 1 Down
Player 2 Left
X
20
Player 1 Left
Player 2 Right
Y
21
Player 1 Right
Player 2 Button 1
Z
22
Player 1 Button 1
Player 2 Button 2
a
23
Player 1 Button 2
Player 2 Button 3
b
24
Player 1 Button 3
Player 2 Button 4
c
25
Player 1 Button 4
Player 2 Button 5
d
26
Player 1 Button 5
GND
e
27
GND
GND
f
28
GND


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