JAMMA pinout

bus or interface

56 pin JAMMA special connector
at the arcade game

An old group trying to set standards for board pinouts (at arcade machines). This was designed to make board changes easy, just take out the old game and plug in the new. Unfortunately games have evolved, and the Jamma standard is no longer up to the job as it can`t handle more than 4 buttons or two players. Also replacing a board from a different manufacturer meant readjusting the picture on the monitor as it would not be centred in the same position.

Sold side

Pin	Description
A	Ground
B	Ground
C	+5V
D	+5V
E	-5V
F	+12V
H	Key (no connection)
J	Meter 2
K	Lockout 2
L	Speaker -
M	Audio Ground
N	Video Green
P	Video Sync
R	Service Switch
S	Tilt Switch "Pinball Slam"
T	Coin 2
U	2 Player start
V	Player 2 Up
W	Player 2 Down
X	Player 2 Left
Y	Player 2 Right
Z	Player 2 Button 1
Aa	Player 2 Button 2
Ab	Player 2 Button 3
Ac	(Player 2 Button 4)
Ad	Not used
Ae	Ground
Af	Ground

Component side

Pin	Description
1	Ground
2	Ground
3	+5V
4	+5V
5	-5V
6	+12V
7	Key (no connection)
8	Meter 1
9	Lockout 1
10	Speaker +
11	Audio +
12	Video Red
13	Video Blue
14	Video Ground
15	Test Switch
16	Coin 1
17	1 Player start
18	Player 1 Up
19	Player 1 Down
20	Player 1 Left
21	Player 1 Right
22	Player 1 Button 1
23	Player 1 Button 2
24	Player 1 Button 3
25	(Player 1 Button 4)
26	Not used
27	Ground
28	Ground

Note: All signals are active low.

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Pinouts.ru > Buses and slots connectors pinouts > Pinout of JAMMA and layout of 56 pin JAMMA special connector	Document status:	correct
Source(s) of this and additional information: JAMMA pinout at Technick.net, from Hardware Book	2 reports
Last updated at Sat Jun 25 2005. Submit additions or corrections for this document.	Is this document correct or incorrect? What is your opinion?

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