[Mar/07/2003]

Rapid Hero
NMK, 1994

The main board has no ROMs at all except 3 PROMs. There is a plug-in daughter
board that holds all the ROMs. It has the capacity for 3 socketed EPROMS and 7x 
16M MASK ROMs total.


PCB Layout (Main board)
-----------------------

AWA94099
-----------------------------------------------------------------------
|    YM2203  TMP90C841 6264 DSW2(8) 62256 62256 6116 62256 62256 6116 |
|   6295 NMK112      12MHz     DSW1(8)                                | 
|  YM3014B 6295      16MHz NMK005   62256 62256 6116 62256 62256 6116 |
|J       -----------------                                            |
|A       |               |                                            |
|M       -----------------                                            |
|M                   PROM3                           NMK009  NMK009   |
|A   NMK111   6116                    6116  NMK008                    |
|       |-|   6116                    6116                            |
|6116   | | NMK902   -----------------                                |
|6116   | |          |               |                                |
|PROM1  | |          -----------------                                |
|       | |                                                           |
|NMK111 | | NMK903                                                    |
|       | | NMK903       PROM2                                        |
|NMK111 | |                                                           |
|       |-|                   6116                  TMP68HC000P-16    |
| 62256     NMK901            6116                             14MHz  | 
| 62256                                                               |
----------------------------------------------------------------------- 

Notes:
      68k clock: 14.00MHz
          VSync: 56Hz
          HSync: 15.35kHz
   90c841 clock: 8.000MHz
   
   
PCB Layout (Daughter board)
---------------------------

AWA94099-ROME
--------------------------
| 2      6   7   5    3  |
|                        |
| 1                      |
|                        |
|                        |
|                        |
| 4           8   9   10 |
|                        |
|                        |
|                        |
--------------------------


-