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Mystic Marathon
---------------
Typed in by Mark Jenison

Mystic Marathon is made up of two separate boards, connected together via
a pin connector (sort of like Atari System 1 boards are connected).  I'm going
to refer to the boards as the RAM board (the board which contains the 3x8 bank
of 4116 Rams), and the ROM board (the board that contains the most ROMs).

RAM board - pins labeled such that LOWEST number is nearest the RAMs, starting
with the connector closest to the RAMs.

2J3 Power
---------

 1 - Gnd
 2 - Gnd
 3 - Gnd
 4 - Gnd
 5 - Key
 6 - +5VDC
 7 - +5VDC
 8 - +5VDC
 9 - +12VDC
10 - -5VDC

2J2 Monitor
-----------

1 - Red
2 - Green
3 - Blue
4 - Gnd
5 - Vert sync
6 - Horz sync
7 - Comp sync

ROM board - pins labeled such that HIGHEST number is nearest the batteries,
starting with the connector nearest the batteries.


1J7 Power
---------

 1 - Unused
 2 - Gnd
 3 - Gnd
 4 - Gnd
 5 - +12V Unreg
 6 - Unused
 7 - +5VDC
 8 - +5VDC
 9 - +5VDC
10 - +5VDC
11 - Key
12 - ??

1J6 Switch
----------

 1 - Jump
 2 - Key
 3 - Player 2 start
 4 - Player 1 start
 5 - Left
 6 - Down
 7 - Right
 8 - Up
 9 - ??
10 - Gnd

1J5
---

Not used

1J4 Coin Door I/O
-----------------

 1 - Mem Prot
 2 - Key
 3 - Slam tilt
 4 - Right coin
 5 - Center coin
 6 - Left coin
 7 - H.S. Reset
 8 - Advance
 9 - Auto/Manual
10 - NC

1J3 Speaker
-----------

1 - Red-Blk (speaker +)?
2 - ??
3 - ??
4 - Blk-Red (speaker -)?

IJ2 Volume control
------------------

1 - Red    (input to pot?)
2 - Black  (output of pot?)
3 - ??
4 - Silver (shield?)






 


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