[Aug/01/99]

Special Criminal Investigation
Taito 1989
M4300140A
K1100492A CPU

68000-12        C09-39     TC0220IOC
C09-25 C09-26   C09-44
C09-24          2063
          2063  C09-41
          2063  C09-43
                2063
TC0170ABT
               16MHz

C09-23    C09-07

TC0150ROD  2063  2063
           2063  C09-34
                 Z80
                            YM2610
2063 2063       C09-15      C09-12
C09-32 C09-33               C09-13
68000-12       TC0140SYT    C09-14
C09-21 C09-22

K1100491 VIDEO

         TC0370MSO   C09-17    43256
                               43256
         C09-05
          C09-16     26.686MHz TC0100SCN  2063
                                          2063
 6264-35  TC0260DAR          C09-06

 TC0270MOD  TC0300FLA        TC0380BSH  C09-19

 43256  43256  43256  43256
 43256  43256  43256  43256   C09-04   C09-20
 43256  43256  43256  43256   C09-03
 43256  43256  43256  43256   C09-02
                              C09-01

-

[MAME]

ChaseHQ2(SCI) 
--------------------------

CPU PCB:

Custom chips: 
TC0170ABT
TC0150ROD
TC0140SYT
TC0220IOC

c09-23.rom is a
PROM type AM27S21PC, location looks like this...

-------------
|   68000   |
-------------

c09-25    c09-26
c09-24

|-------|
|       |
| ABT   |
|       |
|-------|

c09-23     c09-07

|-------|
|       |
| ROD   |
|       |
|-------|

c09-32   c09-33
-------------
|   68000   |
-------------

c09-21  c09-22

Lower PCB:
TCO270MOD
TC0300FLA
TC0260DAR
TC0370MSO
TC0100SCN
TC0380BSH

c09-16.rom is located next to
c09-05, which is located next to Taito TCO370MSO.

-

[MAME]

SCI
Taito, 1989

Controls for this game are one wheel, one switch for shift lever (used for high gear)
and one switch each for accelerate, brake, gun and nitro.

Note that the gear is low by default and is shifted to high gear by a lever which
holds the switch closed. The lever is not self-centering or spring-loaded to go back to
low. The lever must be physically shifted back to low when required.


PCB Layout
----------

CPU PCB  K1100490A  J1100209A
|----------------------------------------------------|
| 24MHz  C09-14.42  TCO140SYT   C09-22.3   C09-21.2  |
|        C09-13.43                    68000          |
|        C09-12.44              C09-33.6   C09-32.5  |
|        YM2610     C09-15.29   6264       6264      |
| YM3016 TL074 TL074  Z80                            |
|                   C09-34.31   6264       TCO150ROD |
|D             VOL    6264      6264                 |
|                                                    |
|        MB3735                 C09-07.15  C09-23.14 |
|          D633        16MHz                         |
|   62064             6264      6264       TCO170ABT |
|                    C09-28.37  6264                 |
|G  62003            C09-36.38           C09-24.22   |
|        TCO220IOC    6264     C09-26.26 C09-25.25   |
|                    C09-30.40        68000          |
|        DSWB DSWA   C09-31.41                       |
|----------------------------------------------------|

Notes:
      Clocks:
             68000 : 16.000MHz (both)
             Z80   : 4.000MHz
             YM2610: 8.000MHz

      Vsync: 60Hz

      Misc parts:
                 MB3735: 15w Power AMP with dual output (used for stereo sounds ; CH1/CH2)
                 TL074 : JFET Lo Noise Quad OP Amp
                 6264  : 8k x8 SRAM
               TD62064 : NPN 50V 1.5A Quad Darlinton Switch (for driving coin meters)
               TD62003 : PNP 50V 0.5A Quad Darlinton Switch (for driving coin meters)
                  D633 : Si NPN POWER transistor used in 68k reset circuit (TIP122 compatible)
      ROMs:
            C09-12 thru C09-14 - MB834100
            C09-07             - HN62404
            C09-32 thru C09-33 - AM27C512
            C09-30 thru C09-31 - TC571000
            C09-38 and C09-36  - TC571000
            C09-23             - AM27S21
            C09-22 and C09-26  - MMI PAL16L8B
            C09-21 and
            C09-24 thru C09-25 - MMI PAL20L8B

PINOUT CONNECTOR D (Note: All pinouts typed from an original Taito document)
------------------

1  +24V
2  +24V
3  GND
4  GND
5  D OUT

Question: +24V and D OUT are for?


PINOUT CONNECTOR G (the meanings of some of these is a bit vague - PTL OUTx, DRV0, HANDLE CENTER SW etc)

         PARTS     |    SOLDER
    ---------------|---------------
             GND  1|A GND
             GND  2|B GND
             +5V  3|C +5V
             +5V  4|D +5V
             -5V  5|E -5V
            +12V  6|F +12V
             KEY  7|H KEY
       COUNTER A  8|J COUNTER B
     C LOCKOUT A  9|K C LOCKOUT B
        SPK CH1+ 10|L SPK CH2+
        SPK CH1- 11|M SPK CH2-
         VOLUME2 12|N VOLUME1
         VOLUME3 13|P MUTE
             GND 14|R SERVICE SW
             GND 15|S BRAKE SW0
          COIN A 16|T COIN B
       BRAKE SW1 17|U BRAKE SW2
        NITRO SW 18|V TILT
HANDLE CENTER SW 19|W START SW
        SHIFT SW 20|X ACCEL SW0
       ACCEL SW1 21|Y ACCEL SW2
        PTL OUT1 22|Z PTL OUT2
            DRV0 23|a GUN SW
         PADL X1 24|b PADL X2
         PADL Y1 25|c PADL Y2
       HANDLE Z1 26|d HANDLE Z2
             GND 27|e GND
             GND 28|f GND

Question: What hardware is used for steering and where is it connected? It doesn't seem to use
          a regular potentiometer for the steering??


PCB Layout
----------

VIDEO PCB  K1100491A  J1100210A
|-----------------------------------------------------|
|          TCO370MSO  C09-17.24  43256                |
|H                    C09-18.25  43256                |
|          C09-05.16                                  |
|          C09-16.17  26.686MHz  TCO100SCN  6264      |
|   C1815                                             |
|V  C1815                                   6264      |
|   C1815  TCO260DAR             C09-06.37            |
|6264                                                 |
|                                                     |
|                                TCO380BSH   C09-19.67|
|TCO270MOD TCO300FLA                                  |
|                                                     |
|43256    43256   43256   43256   C09-04.52  C09-20.71|
|43256    43256   43256   43256   C09-03.53           |
|43256    43256   43256   43256   C09-02.54           |
|43256    43256   43256   43256   C09-01.55           |
|-----------------------------------------------------|

Notes:
      ROMs:
            C09-01 thru C09-05 - 234000
            C09-06             - HN62404
            C09-17 thru C09-18 - MMI 63S441
            C09-19             - MMI PAL16L8B
            C09-20             - AM27S21

      Misc parts:
                6264: 8k x8 SRAM
               43256: 32k x8 SRAM
               C1815: transistor used for driving RGB

PINOUT CONNECTOR H
------------------

1  GND
2  GND
3  GND
4  GND
5  +5V
6  +5V
7  +5V
8  +5V
9  -5V
10 POST
11 +12V
12 NC


PINOUT CONNECTOR V
------------------

1  GND
2  RED
3  GREEN
4  BLUE
5  SYNC
6  NC
7  NC

-

[Nov/26/2000]

Alternative version program roms for Taito's SCI

-