Disclaimer: This information is provided as is. There may be errors in this information. You may use this information only if you agree that Minimalist / Coinop.org, its employees, and noted authors will never be held responsible for any damage, injury, death, mayhem, etc. caused by errors in the information. When working with high voltage, never work alone and always follow safety precautions.

Document Title: [Joust.txt (text file)]

Joust Pinouts  - ENTERED BY MIKE LIKAR 



These were copied from an original drawing set.
Use at your own risk. I take no responsibility for the accuracy of these pinouts.


---------------
Cpu/Video board
---------------

1J1 POWER INPUT
---------------

1 | -- N/C                   \
2 | <- BLK     = GROUND       \
3 | <- BLK     = GROUND        \
4 | -- KEY                      \   
5 | <- GRY-YEL = +12VDC REG      > FROM POWER SUPPLY
6 | -- N/C                      /
7 | <- GRY     = +5DC          /
8 | <- GRY-WHT = +12VDC UNREG /
9 | <- ORN     = -5DC        /


1J2 MEMORY PROTECT INTERLOCK
----------------------------

1 | <- RED-ORN = MEM PROT \
2 | -- KEY                 \
3 | -- N/C                 / FROM CABINET SWITCH 
4 | -- N/C                /


1J3 MONITOR CONTROL
-------------------

1 | VIO-RED -> RED         \
2 | VIO-GRN -> GREEN        \
3 | VIO-BLU -> BLUE          \
4 | BLK     -> GROUND         > TO MONITOR 
5 | VIO     -> VERT. SYNC    /  TYPE A INTERFACE BOARD
6 | VIO-WHT -> HORIZ. SYNC  /
7 |         -- N/C         /


1J4 ROM INTERBOARD CONNECTOR  
----------------------------

RIBBON CABLE TO ROM BOARD  



1J5 INTERFACE INTERBOARD CONNECTOR
----------------------------------

RIBBON CABLE TO INTERFACE BOARD


---------
ROM BOARD
---------

2J1 CPU/VIDEO INTERBOARD CONNECTOR
----------------------------------

RIBBON CABLE TO CPU/VIDEO BOARD 


2J2 POWER INPUT
---------------

1 | <- BLK = GROUND \
2 | -- N/C           \
3 | -- KEY            \
4 | <- GRY = +5DC     / FROM POWER SUPPLY 
5 | -- N/C           /
6 | <- GRY = +5DC   / 


2J3 COIN DOOR SWITCHES
----------------------

1 | <- BLU     = AUTO-UP/MAN-DOWN \
2 | <- GRN     = ADVANCE           \
3 | <- YEL-WHT = RIGHT COIN         \
4 | <- WHT-GRY = HIGH SCORE          \
5 | <- WHT-BLU = LEFT COIN            \ FROM COIN DOOR SWITCHES
6 | <- WHT-GRN = CENTER COIN          /
7 | <- WHT-VIO = SLAM                /
8 | -- N/C                          /
9 | -- KEY                         /
10| -- N/C                        /


2J4 SOUND BOARD INTERFACE
-------------------------

1 | -- KEY    \
2 | GRN-RED -> \
3 | GRN-ORN ->  \
4 | GRN-YEL ->   \
5 | GRN-BLU ->    > TO SOUND BOARD - 10J3
6 | GRN-VIO ->   /
7 | GRN-GRY ->  / 
8 | <-GRN-WHT  / 
9 | -- N/C    /



---------------
INTERFACE BOARD
---------------


3J1 INTERFACE INTERBOARD CONNECTOR 
----------------------------------

RIBBON CABLE TO CPU/VIDEO BOARD


3J2 PLAYER PANEL
----------------

1 | <- ORN-WHT = N/C \
2 | -- MOVE LEFT #2   \
3 | -- MOVE RIGHT#2    \
4 | -- FLAP #2          \
5 | -- N/C               > TO PLAYER PANEL
6 | -- N/C              /
7 | -- N/C             /
8 | -- N/C            /
9 | -- N/C           /
10| -- N/C          /


3J3 PLAYER PANEL
----------------

1 | <- ORN-BRN = MOVE LEFT #1 \
2 | <- ORN-RED = MOVE RIGHT #1 \
3 | <- ORN     = FLAP #1        \
4 | <- ORN-YEL = N/C             \
5 | <- ORN-GRN = 2 PLAYER START   > TO PLAYER PANEL
6 | <- ORN-BLU = 1 PLAYER START  /
7 | -- N/C                      /
8 | -- N/C                     /
9 | <- N/C                    /
10| -- GROUND                /


------------------
POWER SUPPLY BOARD
------------------


4J1 AC INPUT 
------------

1 | <- BLK     = 22.6 VAC  \
2 | -- N/C                  \ 
3 | <- GRY-GRN = 22.6 VAC    \
4 | -- N/C                    \
5 | <- GRN     = 22.6 VAC C.T. \
6 | -- N/C                      \
7 | -- KEY                       \
8 | <- GRY-YEL = 20 VAC          / FROM TRANSFORMER
9 | <- GRY-WHT = 20 VAC         /
10| -- N/C                     /
11| <- VIO-YEL = 11.5 VAC     /
12| <- ORN     = 11.5 VAC    /
13| <- N/C                  /
14| -- WHT-YEL = 6.3 VAC   /
15| <- YEL     = 6.3 VAC  /


4J2 POWER OUTPUT
----------------

1 | ORN ->     = -5VDC         } TO CPU/VIDEO BOARD
2 | -- KEY                      
3 | GRY-YEL -> = +12VDC REG    } TO CPU/VIDEO BOARD
4 | GRY-GRN -> = -12VDC UNREG  } TO CPU/VIDEO BOARD AND TO SOUND BOARD
5 | GRY-WHT -> = +12VDC UNREG  } TO SOUND BOARD 
6 | GRY-WHT -> = +12VDC UNREG  } TO CABINET
7 | BLK     -> = GROUND       
8 | BLK     -> = GROUND       
9 | BLK     -> = GROUND      
10| BLK     -> = GROUND     
11| -- N/C                     
12| GRY     -> = +5VDC  } TO CPU/VIDEO BOARD
13| GRY     -> = +5VDC  } TO ROM BOARD
14| GRY     -> = +5VDC  } TO SOUND BOARD
15| -- N/C


4J3 COIN DOOR POWER
-------------------

1 | YEL     -> = -6.3VAC
2 | WHT-YEL -> = -6.3VAC
3 | RED     -> = +27VDC
4 | -- N/C
5 | -- KEY
6 | BLK-ORN -> = GROUND } TO MEMORY PROTECT INTERLOCK SWITCH


4J4 / 4P4
---------                     
                               
1 | -- YEL = BASE      \            
2 | -- WHT = EMITTER    \     
3 | -- GRN = COLLECTOR   \    
4 | -- BLK = BASE         > TO TRANSISTORS ON HEAT SINK    
5 | -- KEY               /        
6 | -- BLU = EMITTER    / 
7 | -- ORN = COLLECTOR /



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


10J1 POWER INPUT
----------------

1 | -- N/C                   \ 
2 | <- GRY-WHT = +12VDC       \
3 | <- GRY     = +5VDC         \
4 | -- N/C                      \
5 | <- BLK     = GROUND          > FROM POWER SUPPLY 
6 | -- N/C                      /
7 | -- N/C                     /
8 | <- GRY-GRN = -12VDC UNREG /
9 | -- KEY                   /


10J2 SPEAKER
------------

1 | BLK-RED -> = AUDIO  \
2 | -- N/C               \
3 | -- N/C               / TO CABINET SPEAKER
4 | RED-BLK -> = GROUND /


10J3 SOUND SELECT
-----------------

1 | -- KEY    \ 
2 | <- GRN-RED \
3 | <- GRN-ORN  \
4 | <- GRN-YEL   \     
5 | <- GRN-BLU    > FROM ROM BOARD - 2J4
6 | <- GRN-VIO   /
7 | <- GRN-GRY  / 
8 | <- GRN-WHT /
9 | -- N/C    /



10J4 VOLUME CONTROL
-------------------

1 | <- RED = IN   \
2 | BLK -> = OUT   \
3 | -- KEY         / TO CABINET VOLUME CONTROL 
4 |     -> SHIELD / 



-------
MONITOR
-------


TYPE A INTERFACE BOARD
----------------------
        
1 | <- VIO-RED = RED
2 | <- VIO-GRN = GREEN
3 | <- VIO-BLU = BLUE
4 | <- BLK     = GROUND
5 | <- VIO     = VERT SYNC
6 | <- VIO-WHT = HORZ SYNC
 


UNLABELED
---------

E1 | <- VIO-RED = RED       \
E2 | <- VIO-GRN = GREEN      \
E3 | <- VIO-BLU = BLUE        \ FROM TYPE B
E4 | <- BLACK   = GROUND      / MAIN PCB ASSY
E5 | <- VIO     = VERT SYNC  /
E6 | <- VIO-WHT = HORZ SYNC /

}