[Jul/30/99]

Seibu Kaihatsu 1987

Cross Shooter
Rom swap for Air Raid
7/27/99

-

[Jul/23/2001]

Cross Shooter (Proto?)
(C) J K H Corp  (Seibu?)

Seibu Hardware
PCB is coloured black and supposed to be proto, but mask roms are present......?

PCB No. S-0087-011A-0
CPU: SHARP LH0080B (Z80B)
SND: YM2151, Z80A, SEI80BU 611 787, YM3012, SEI0100BU YM3931
RAM: TMM2015 x 7, TMM2063 x 1
DIPs: 2 x 8 position
OTHER: SEI0020BU TC17G008AN-0015 (x 3), SEI0050BU M  6 4 0 00, SEI10040BU TC15G008AP-0048, 
       SEI0030BU TC17G005AN-0026, SEI0060BU TC17G008AN-0024 
XTAL: 14.318 MHz (near SEI80BU), xx.000 MHz (cant read speed, near SEI0040BU)

There are 3 BIG custom black (resistor?) packs on the PCB.

ROMS:
Note, all ROMs have official sticker, "(C) SEIBU KAIHATSU INC." and a number.

1.k19  TMM27256      \
2.k20  TMM27512      / Program
3.f11  TMM2764         Gfx?
4.g8   TMM24256 Mask   Sound (Samples?)
5.g6   TMM2764         Sound program

-

[Dec/28/98]

-----------------------------
Cross Shooter by TAITO (1987)
-----------------------------


Location    Type     File ID   Checksum
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
LB 4U       27256      R1        C2F0   [  main program  ]
LB 2U       27512      R2        74EA   [  program/GFX   ] 
TB 11A      2764       R3        DFA7   [     fix?       ]
LB 5C       27256      R4        D7B8   [ sound program  ]
LB 7A       82S123     0.BPR     00A1   [   forgrounds   ]
LB 9S       82S129     1.BPR     0194   [ motion objects ]
TB 4E       82S129     2.BPR     00DC   [ motion objects ]
LB J3       68705      


Notes:   LB - CPU board        S-0086-002-0B
         TB - GFX board        S-0087-807

         The PCB looks like a prototype, due to the modifications
         to the PCB. The game is probably licenced from Seibu.

         The bipolar PROMs are not used for colour.



Brief hardware overview:
------------------------

Main processor  - Z80 6MHz
                - 68705

GFX             - custom TC15G008AP-0048  SEI0040BU
            3 x - custom TC17G008AN-0015  SEI0020BU
                - custom TC17G005AN-0028  SEI0030BU
            3 x - custom SIPs. No ID, unusually large.

Sound processor - Z80 6MHz (5.897MHz)
            2 x - YM2203C


The game data seems to be small. There may be graphics
data in the custom SIPs. I am not sure though.

-


[Jan/16/99]

Air Raid (Seibu 1987)
S-0087-011A-0

            82S129        TMM2015      Z80B  2.19J
SEI0020BU                 TMM2015            1.18J
SEI0020BU         63S281                    TMM2063
SEI0020BU         TMM2015
63S281
SEI0050BU                 3.13F

SEI0040BU                                   TMM2015          on
                                     4.7F    YM2151          x x
TMM2015                TMM2015       5.6F    Z80         sw2  x xxxxx
TMM2015               TMM2015                                  x
SEI0030BU          SEI0060BU                             sw1 xx xxxxx
                                   SEI80BU
                                   SEI0100BU(YM3931) YM3012

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