[Sep/25/97]

Express Raider 1986 Data East

CPUs: 6809, 6502
Sound: YM2203



[Jul/11/98]


        WESTERN EXPRESS   CHIP PLACEMENT

USES 6502 & 68B09 CPU'S W/YM2203 & YM3528 SOUND

CHIP #  POSITION  TYPE
------------------------
1        8B       27256  CONN BD
2        7B       27128   "
3        3F       27256   "
4        4L        "      "
5        3L        "      "
6        2L        "      "
7        8Q        "      "
8        7F       27128  REAR BD 
9        2K       27256   "
10       2L        "      "
11       2M        "      "
12       2N        "      "
13       2Q        "      "
14       2R        "      "
PAL16R4A 5C              CONN BD
PAL16R4A 5E              DAUGHTER BD ON REAR BD


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[Nov/11/97]

WESTERN EXPRESS
Data East, 1980.

November 10th, 1997.

CPU: MC68B09P (6809)
SND: R6502P (6502)
     YM2203C
     YM3526

Filename        Checksum        Location

Upper board:

WEXPRESS.1      7de0            ic73
WEXPRESS.2      227a            ic81
WEXPRESS.3      da91            ic62
WEXPRESS.4      1795            ic21
WEXPRESS.5      f0e6            ic31
WEXPRESS.6      8ba7            ic23
WEXPRESS.7      7d45            ic15

Lower board:


WEXPRESS.8      d8dd            ic80
WEXPRESS.9      b7d3            ic10
WEXPRESS.10     ab16            ic11
WEXPRESS.A      14d3            ic3
WEXPRESS.B      1135            ic4
WEXPRESS.C      6fc9            ic5
WEXPRESS.D      d09f            ic6

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[MAME]

Express Raider

Memory Map:

Main CPU: ( 6502 )
0000-05ff RAM
0600-07ff Sprites
0800-0bff Videoram
0c00-0fff Colorram
1800-1800 DSW 0
1801-1801 Controls
1802-1802 Coins
1803-1803 DSW 1
2100-2100 Sound latch write
2800-2801 Protection
3800-3800 VBblank ( bootleg 1 only )
4000-ffff MRA_ROM

Sound Cpu: ( 6809 )
0000-1fff RAM
2000-2001 YM2203
4000-4001 YM3526
6000-6000 Sound latch read
8000-ffff ROM

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