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Coin-Op : Arcade : Space Zap : KB-2703-281

Title

Space Zap Pinout Part 1

Author

spies.com

Article

Space Zap pinouts
Midway, 1981

There are seven boards in the Space Zap boardset:
Qty Position on
Motherboard
1 *Game Bd A084-90708-A902 J5
1 Pattern Bd A082-91348-0000 J4
1 CPU Bd (C.P.U.) A082-91354-E000 J3
2 RAM Card A082-91356-C000 J2 & J1

1 Comm. Mother Bd A082-90006-B/C000
1 *Audio Amp Board A084-90903-A000

With the exception of those boards marked with an asterisk (*), the rest of
the boards are used by at least two other Midway games -- Gorf and Space Zap.
All three of these games -- Space Zap, Wizard of Wor, and Gorf -- also share
the same power supply (A082-90411-A000).

Unfortunately, each of these games uses completely different pinouts on the
main Game board. Also, Wizard of Wor uses a different amp board (the Audio
Amp #2 vs. the regular Audio Amp board) because it uses three speakers. Gorf
and Space Zap can only use 2 speakers. The power supply outputs from the
motherboard are the same for all these games, which means if you have the
power supply and the motherboard, you have all the power requirements for any
one of these games taken care of.

Unlike Gorf and Wizard of Wor, Space Zap does not require a Memory Board
(Wizard of Wor) or a 44k RAM/ROM Board (Gorf). Space Zap also does not
require the RGB Interface Board. Space Zap is a black & white game.

The "Position on Motherboard" column refers to the fact that these boards
plug into a common motherboard much like ISA/EISA/VESA/PCI cards plug into
PC card expansion slots.

Legend:
PS = Power Supply
IB = RGB Interface Board
AA = Audio Amp Board
GB = Game Board


Motherboard (9-pos, 0.156") (outputs & inputs from power supply)
Pin | Definition
------------------
1 | +5V
2 | +5V
3 | +12V
4 | !Reset
5 | -5V
6 | Key
7 | Gnd
8 | Gnd
9 | -Sense (Gnd)

P1 Game Board (13-pos, 0.100")
Pin | Definition
------------------
1 | P2 Down
2 | P2 Up
3 | P2 Right
4 | P2 Left
5 | P2 Fire
6 | Key
7 | Gnd (P2 common return)
8 | P1 Up
9 | P1 Down
10 | P1 Left
11 | P1 Right
12 | P1 Fire
13 | Gnd (P1 common return)


P2 Game Board (16-pos, 0.100")
Pin | Definition
------------------
1 | Coin #1
2 | Coin #2
3 | Test [to AA-1]
4 | Door Slam
5 | 1P Select
6 | 2P Select
7 | Gnd (common return for pins 1,2,4,5,6)
8 | Audio [to AA-6]
9 | Audio Common [from AA-2]
10 | Coin Meter #1
11 | Gnd [to PS]
12 | Coin Meter #2
13 | Gnd [to PS]
14 | Key
15 | Video Signal [to monitor]
16 | Video Signal Gnd [from monitor]


Audio Amp Board (11-pos, 0.100"?)
(to & from Game Board)
Pin | Definition
------------------
1 | Test (Test/Play SW1 located on Audio Amp Board) [to GB/J2-3]
2 | Audio Common (common return from speakers)
3 | Key
4 | Audio In #2
5 | V Audio (~13V) [from PS-1]
6 | Audio In #1 [from GB/J2-8]
7 | V Audio Return [to PS-11]
8 | Speaker #1 [to Speaker]
9 | Speaker #1 [from Speaker]
10 | Speaker #2
11 | Speaker #2

Notes:
1) For mono output, only 1 speaker output used
2) For dual-mono output, both speakers used and jumper JU1
3) For stereo output, both speakers used and no jumper on JU1


Here is most of the information for the power supply pinouts on the game
side of the power supply (A082-90411-0000). A question mark indicates
information I was not absolutely sure about. This power supply uses almost
exactly the same outputs and inputs as the one in Super Pac-Man (A082-
90421-0000).

Power Supply (19-pos?)
1 +V Audio (~13V @ 1.5A)
2 -5V @ 0.45A
3 +V Independent [~10V @ 3.5A, to coin door and control lights?]
4 !Reset
5 V.Batt?
6 Key
7 +12V @ 1.45A
8 +12V @ 1.45A
9 -Sense
10 AC Sync?
11 -V Independent [Gnd, control lights return?]
12 -V Audio [Gnd for Audio circuit]
13 Gnd
14 Gnd
15 Gnd
16 Gnd
17 Coin Counter Drivers (~8V, unreg +5V) [from coin meter]
18 +5V @ 3A
19 +5V @ 2A regulated for logic



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