Sega Naomi System

JAMMA Harness Wiring

(JAMMA I/O BD)

(Figure 4)

Ground

Ground

+5v (Not Used)

+5v (Not Used)

(Not Used)

+12v (Not Used)

Key

Coin Meter 1

(Not Used)

(Not Used)

(Not Used)

Video Red

Video Blue

Video Ground

Test

Coin 1

1P Start

1P UP

1P Down

1P Left

1P Right Attack 1P (1P SW1)

Grapple 1P (1P SW2) Support 1P (1P SW3)

(Not Used)

(Not Used)

Ground

Ground

1A

2B

3C

4D

5 E

6F

7H

8J

9K

10 L

11 M

12 N

13 P

14 R

15 S

16 T

17 U

1

V

 

 

8

 

19W

20 X

21 Y

22Z

23 a

24 b

25c

26d

27e

28f

Ground

Ground

+5v (Not Used)

+5v (Not Used)

(Not Used)

+12v (Not Used) Key

Coin Meter 2

(Not Used)

(Not Used)

(Not Used)

Video Green

Video Sync

Service

(Not Used)

Coin 2

2P Start

2P UP

2P Down

2P Left

2P Right

Attack 2P (2P SW1)

Grapple 2P (2P SW2)

Support 2P (2P SW3)

(Not Used)

(Not Used)

Ground

Ground

8

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Sega 999-1117 installation instructions Jamma I/O BD