[Mar/14/99]

THERE ARE TWO BOARD SETS IN THIS ZIP.  SEE BELOW.

Board 96598-P is an oscillator board that generates the game sounds.  It is activated by outputs from Board Assy A (96577X).

Board Assy's A (96577X) and B (96578X) are the main guts of the gameplay and contain the roms (all sprites).
	Board Assy A accepts all of the game inputs (Coin, wheel, shift, accelerator pedal), sends the 	signals for the sounds to the Oscillator board, outputs to the L.E.D. score display board, and 	directly  interacts with Board Assy B
	Board Assy B outputs the video, outputs to the L.E.D. score display board. and directly interacts with Board Assy A.

	(On the second set, boards A and B have different part numbers (97091X and 97092X) and two less roms.  These boards were made later then the first set.  I have interchanged these boards with each other, and they seem to be interchangable,
	the only difference seems to be the rom size, which only 2 of the roms utilize the full 1024 bytes (second set).)

ROM SET A	<type 7461, 24 pin>	ROM SET B 	<type MB7132E, 24 pin>
Board 96577X				Board 97091X
ROM ID			IC#		ROM ID
PRa125 (Light data)	IC59		PRb-01	(identical to PRa125)
PRa126 (Explosion)	IC65		PRb-02	(identical to PRa126)
PRa131 (????)		IC71		PRb-04	(identical to PRa131)
PRa127 (car(2))		IC77		PRb-13	(identical to PRa127)
PRa128 (car(2)rotated)	IC84		PRb-03	(identical to PRa128)
PRa129 (car)		IC91		-----
PRa130 (car(2) spinout)	IC98		PRb-14	(contains PRa130 and half of PRa129)
PRa132 (car(2)(main))	IC111		PRb-15  (identical to PRa132)

PRm-39			IC105		PRm-39      	<both type 6331-1, 16 pin>
PRm-38			IC115		PRm-38		<both type 6331-1, 16 pin>	

Board 96578X				Board 97092X
ROM ID			IC#		ROM ID
PRa140 (brdge-water)	IC12		-----  
PRa141 (brdge-pillar)	IC17		PRb-16  (contains both PRa140 and PRa141)
PRa138 (firetruck)	IC30		PRb-10  (identical to PRa138)
PRa139 (car+bridge symb)IC51		PRb-11  (identical to PRa139)
PRa133 (text(4)		IC64		PRb-05  (identical to PRa133)
PRa136 (house)		IC99		PRb-08  (identical to PRa136)
PRa135 (shrub)		IC106		PRb-07  (identical to PRa135)
PRa134 (tree, grass)	IC113		PRb-06  (identical to PRa134)
PRa137 (tunnel,oil slip)IC120		PRb-09  (identical to PRa137)

Oscillator Board 96598
ROM ID		IC#
PRm-40		IC21			PRm-40		<both type 6331-1, 16 pin>

--------------------------------------------------------
	
7641

512*8
   +------+
A7 |1   24| Vcc
A6 |2   23| A8
A5 |3   22| NC
A4 |4   21| CE1/
A3 |5   20| CE2/
A2 |6   19| CE3
A1 |7   18| CE4
A0 |8   17| D7
D0 |9   16| D6
D1 |10  15| D5
D2 |11  14| D4
GND|12  13| D3
   +------+
-----------------------------------------------

6331-1 PROM

32*8
        +------+
O1     |1     16| Vcc
O2     |2     15| CE/
O3     |3     14| A4
O4     |4     13| A3
O5     |5     12| A2
O6     |6     11| A1
O7     |7     10| A0
GND    |8      9| O8
        +------+

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

7132:

1024*8
   +------+
A7 |1   24| Vcc
A6 |2   23| A8
A5 |3   22| A9
A4 |4   21| CE1/
A3 |5   20| CE2/
A2 |6   19| CE3
A1 |7   18| CE4
A0 |8   17| D7
D0 |9   16| D6
D1 |10  15| D5
D2 |11  14| D4
GND|12  13| D3
   +------+


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[May/29/97]

MONACO GP roms from SEGA 1979

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