Space Invaders..
 ----------------


On the A084-90700-B739 board, there are 3 connectors.

the 8 pin connector:
1- Common (PINK)
2- Move Right (R-G)
3- Move Left (Blu)
4- ?
6- (Drawing said "Key") N/C
7- Select one Player (G-Y)
8- Select two Player (O-W)

The 11 pin connector:
1- ?
2- Coin Switch (BW-W)
3- Coin Switch (BR-B)
4- C.Tap on xformer (Yel)
5- Coin Meter (G-W) Then to Pin 9 on Power Supply
6- "Reset" (Orn) Directly to Pin 6 on Power Supply
7- (Drawing said "Key") N/C
8- Speaker (G-B)
9- Speaker (R-Y)
10- "V. Audio Return" (Blu-y) Directly to Pin 4 on Power Supply
11- "V.Audio" (W-O) Directly to Pin 15 on Power Supply

(10 and 11 may be for the Volume Control)

The 72 Pin Connector.  This connects the Mother Board "M051-00739-A002" to
the daughter.

On the Mother board, there is another 18 pin connector.
1/2- +5V  (WHT) To Pin 21/22 on Power Supply
3/4- +12V (W-BRN) To pin 2/3 on Power Supply
5       -5V (B-W) To Pin 1 on Power Supply
6 Thu 13 -?
14-   "-Sense" (Red)  To Pin 24 on Power Supply
15-   "Com" (O-R)  To Pin 20 on Power Supply
16- ?
17/18- "Monitor Jack"

---------------------------------------------------------------------------

SW1: ON- Coin information is displayed on screen
     Off- Coin information is not displayed

SW2:      On- Bonus base awarded at 1500 Pts
     Off- Bonus base awarded at 1000 Pts

                    SW3  SW4
3 Bases per game         On   On
4 Bases per game         On   Off
5 Bases per game         Off  On
6 Bases per game         Off  Off

SW 5,6,7,8 are not used.


======================================================================================
SPACE INVADERS  TAITO
---------------------

 COMP                               CKT
------        GAME BOARD           ------
  1  GND                              A  GND
  2  GND                              B  GND
  3  GND                              C 
  4  SP                               D  SP
  5  +12V                             E  +12V
  6                                   F
  7                                   H  +12V
  8                                   J  GND
  9  +5V                              K  +5V
 10  RESET                            L
 11                                   M
 12  TILT                             N  2 START
 13  CTR DRIVER BD  PIN 2             P  1 START
 14  FIRE                             R  RIGHT
 15                                   S  LEFT
 16                                   T
 17                                   U
 18                                   V
              CPU BOARD
 1  +5V                                
 2  +5V                                
 3  +12V                               
 4  +12V                               
 5  -5V                                
 6                                     
 7
 8
 9
10
11
12
13
14  GND                                
15  GND                                
16  GND                                
17  GND                                
18  VIDEO                              

 DIP 1         1    2    3    4    5    6    7    8               
 ------        ON   ON                                  3  # OF BASES
               OFF  ON                                  4
               ON   OFF                                 5
               OFF  OFF                                 6
                         ON                             CHECK RAM AND SOUND
                                                        CPU BD# CUN00006
                              ON                        1500 BONUS PTS
                              OFF                       1000
                                   ON   ON   ON         FACTORY
                                                  OFF   NO PRICING ON SCREEN
  VOLUME POTS
  1  UFO VOLUME
  2  LASER BASE FIRING
  3  LASER BASE DESTROYING
  4  INVADERS BEING DESTROYED
  5  BEEP FOR BONUS
  6  INVADERS ADVANCING
  7  UFO BEING DESTROYED
  8  MASTER VOLUME