Joust 2 Pinouts
Entered by Tim Lindquist (powerjaw@dnai.com)

These pinouts were created by looking at an original Joust 2 cabinet. Use at your own risk. I take no responsibility for the accuracy of these pinouts.

RAM/VIDEO BOARD
---------------

J2
--
1 - Red video
2 - Green video
3 - Blue video
4 - Ground
5 - Vertical Sync
6 - Horizontal Sync
7 - n/c

J3
--
1 - n/c
2 - Ground
3 - Ground
4 - Ground
5 - n/c
6 - +5v
7 - +5v
8 - n/c
9 - +12v
10 - -5v

ROM BOARD
---------

J2
--
1 - Audio +
2 - Audio -
3 - n/c
4 - Shield

J3
--
1 - n/c
2 - n/c
3 - n/c
4 - n/c

J4
--
1 - Coin door?
2 - n/c
3 - Slam switch
4 - Right coin
5 - n/c
6 - Left coin
7 - High score reset
8 - Advance
9 - Auto Up
10 - Ground

J5
--
1 - n/c
2 - n/c
3 - n/c
4 - n/c
5 - n/c
6 - n/c
7 - n/c
8 - n/c
9 - n/c
10 - n/c
11 - n/c
12 - n/c

J6
--
1 - 1 player start/transform
2 - 2 player start/transform
3 - n/c
4 - Flap 2
5 - Move right 2
6 - Move left 2
7 - n/c
8 - Flap 1
9 - Move right 1
10 - Ground
11 - n/c
12 - Move left 1

J7
--
1 - n/c
2 - Ground
3 - Ground
4 - Ground
5 - +12v
6 - +5v
7 - +5v
8 - n/c
9 - +12v
10 - +12v
11 - n/c
12 - -5v

Unlabeled
---------
20 pin ribbon cable from sound board

SOUND BOARD
-----------

J1
--
1 - Audio + (from ROM board J2 pin 1)
2 - Audio - (from ROM board J2 pin 2)
3 - n/c
4 - Shield  (from ROM board J2 pin 2)

J2
--
1 - -----\ Red     
2 - ---->/ Black   Volume Pot
3 -      \         
4 - -----/ Shield

J3
--
1 - +5v
2 - Ground
3 - -12v
4 - n/c
5 - +12v
6 - n/c

J4
--
20 Pin ribbon cable to ROM board

Unlabeled
---------
1 - Speaker +
2 - 
3 - 
4 - Speaker -