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

NARC
Williams 1988

typed up by: Brian Johnson <bljohn2@uswest.com>
             Ray Ghanbari <ray@mayo.edu>


Note: Requires Medium-Res Monitor (won't work with standard arcade monitor)

2 player game.  Each player with the following control configuration:

          
          |B| Start 
    /---\           |B| Jump
    | J |     |B| Fire    |B|  Croutch
    \---/      
          |B| Rocket Bomb
	 
J == 8 way joystick
B == Button

All configuration parameters are set via the self-test screen (no dip switches)


Board and connector layout:

                               +-----------------------+
                               |                       |   ROM Board
                               |                       |
                               |                  2J3 x|
                               |                      x|
                               |                      x|
                               |     2P2        2P1    |
                               +--||||||||---||||||||--+
+-----------------+            +--||||||||---||||||||--+
|           10J1 x|---ribbon---|x    1J9        1J10  x|
|                x|----cable---|x 1J8             1J1 x|   CPU Board
|                 |            |                       |
| Sound Board     |            |                      x|
|                 |            |x 1J7             1J2 x|
|                 |            |x                      |
|                 |            |x                     x|
|           10J2 x|            |            1J4   1J3 x|
|                x|            +----------||||||||-----+
|                x|                +------||||||||-----+
|                x|                |        3P4   3J1 x|
|10J5 10J4  10J3  |                |x 3J6             x|   Interface Board
| xx  xxxx  xxxxx |                |x                  |
+-----------------+                |x             3J2 x|
                                   |                  x|
                                   | 3J5   3J4   3J3  x|
                                   | xxxx  xxxx  xxxx  |
                                   +-------------------+


xxx == connectors, labeled and referenced below
||| == inter-board connectors



Pinouts (partially incomplete)

CPU BOARD            INTERFACE BOARD      INTERFACE BOARD (continued)

1J1                  3J1                  3J6 (Coin and Diagnostics, see B)
---                  ---                  ---
1 +5                 1 +5                 1 NC
2 +5                 2 +5                 2 ? (WHT/GRY)
3 +5                 3 Key                3 ? (BLU)
4 +5                 4 GND                4 ? (GRN)
5 GND                                     5 ? (WHT/VIO)
6 Key                3J2                  6 ? (WHT/GRN)
7 GND                ---                  7 ? (YEL/WHT)
8 GND                1 NC                 8 ? (WHT/BLU)
9 GND                2 NC                 9 Key
                     3 NC                 10 ? (GRN/BRN)
1J2                  4 NC
---                  5 Key
1 +BAT.Vin           6 Memory Protect     SOUND BOARD
2 GND                7 to 10J2 pin 1
3 GND                8 P2 Start           10J1
4 Key                9 P1 Start           ----
5 Coin Door          10 NC                (Connects to 1J8
                                           on CPU board)
1J3 (see Note A)     3J3
---                  ---                  10J2
1 Video Red          1 P2 Rocket          ----
2 Video Green        2 P2 Jump            1 to 3J2 pin 7
3 Video Blue         3 P2 Fire            2 Key
4 Video GND          4 P2 Crouch          3 to 3J5 pin 9
5 Vertical           5 P2 Right           4 to 3J5 pin 8
6 Horizontal         6 P2 Left            5 to 3J5 pin 7
7 Composite Sync     7 Key                6 to 3J5 pin 5
                     8 P2 Down            7 to 3J5 pin 4
1J7 (Not used)       9 P2 Up              8 to 3J5 pin 3
---                  10 GND               9 to 3J5 pin 2
1 NC                                      10 to 3J5 pin 1
2 Key                3J4
3 NC                 ---                  10J3
4 -LINT2             1 1P Rocket          ----
5 -EXT.INT           2 1P Jump            1 +5
6 SND15              3 1P Fire            2 GND
7 SND14              4 1P Crouch          3 -12 VDC (unreg) (-5 might work)
8 SND13              5 1P Right           4 Key
9 SND12              6 1P Left            5 +12 VDC (unreg)
10 GND               7 1P Down            6 +12 VDC (unreg)
                     8 Key                7 GND
1J8                  9 1P Up              8 GND
---                  10 GND               9 NC
(Connects to 10J1
 on sound board)     3J5                  10J4
                     ---                  ----
                     1 to 10J2 pin 10     1 Right Speaker +
ROM BOARD            2 to 10J2 pin 9      2 Left Speaker +
                     3 to 10J2 pin 8      3 Audio Return
2J3                  4 to 10J2 pin 7      4 GND
---                  5 to 10J2 pin 6      5 Key
1 +5                 6 Key                6 GND
2 +5                 7 to 10J2 pin 5      7 GND
3 +5                 8 to 10J2 pin 4
4 +5                 9 to 10J2 pin 3      10J5
5 GND                10 NC                ----
6 Key                                     1 to edge of volume control
7 GND                                     2 to wiper on volume control
8 GND                                     3 Key
9 GND                                     4 to other edge of volume control


Note A:
Jumper W1 on the CPU board inverts the polarity of H Sync, V Sync, and Comp Sync

Note B:
No information in docs about how coin door is wired up.  Mention is made of 3 different diagnostic switches, with ADVANCE being used to put the game into self-test, and to advance within a test screen.  If someone has a NARC and can trace down these wires, please e-mail so we can update the pinout.

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