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Old Taito 3 board set
=====================

These pinouts are not 100% complete, but there is enough info for an
upright JAMMA conversion. There is an upright/cocktail pin
somewhere and 2P left/right/fire buttons are still unidentified.

The HALT pin was the one that had me going for a while. I couldn't
get the game to run at all outside the cocktail harness until I wired
this sucker low.

Lunar Rescue   ('80)
Space Invaders (late '70s)

                 Solder   Sound Board      Parts
          =============================================
                        GND | A | 1 | GND
                        GND | B | 2 | GND
                        GND | C | 3 | GND
                    Speaker | D | 4 | Speaker
                       +12V | E | 5 | +12V
                        KEY | F | 6 | KEY
          (audio amp?) +18V | H | 7 | Not Used (tied to H?)
       (for audio amp)  GND | J | 8 | GND (for audio amp)
                        +5V | K | 9 | +5V
                   Not Used | L | 10| Halt (tie low to run)
                 Video Gnd? | M | 11| Reset 
                   2P Start | N | 12| Slam
                   1P Start | P | 13| Coin 
                   1P Right | R | 14| 1P Fire
                    1P Left | S | 15| Red
                       Blue | T | 16| P2 Right (cocktail) 
                      Green | U | 17| P2 Left (cocktail) 
                      Csync | V | 18| P2 Fire 

Csync is "standard" JAMMA-like active low sync.

                 Solder     ROM Board      Parts
          =============================================
                        +5V | A | 1 | +5V
                        +5V | B | 2 | +5V
                       +12V | C | 3 | +12V
                       +12V | D | 4 | +12V
                        -5V | E | 5 | -5V
          (not used?)  +15V | F | 6 | +15V (not used?)
                        KEY | H | 7 | KEY
                        N/C | J | 8 | ?
                        N/C | K | 9 | ?
                        N/C | L | 10| ?
                        N/C | M | 11| ?
                        N/C | N | 12| ?
                        N/C | P | 13| ?
                        GND | R | 14| GND
                        GND | S | 15| GND
                        GND | T | 16| GND
                        GND | U | 17| GND
                        N/C | V | 18| ?

The +15V pins don't appear to be used on either of my board sets
(Lunar Rescue or Space Invaders) and the game does work without
them wired to anything.

Regards, John.

* John Keay                               ! Texas Instruments Ltd. * 
* keay@tiuk.ti.com                        ! Bedford, U.K.          *
* Disclaimer:  All opinions expressed herein are personal. etc etc *


 


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