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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 /


 


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