[Apr/04/2004]

Kyuukyoku no Othello
Success Corp. 1990

PCB Layout

SSS8906
|------------------------------------------|
| YM3014 DSW2  DSW1           4464    4464 |
|                             4464    4464 |
|              YM2203         4464    4464 |
|J      M5205  Z80            4464    4464 |
|A             6116           4464    4464 |
|M             PAL            4464    4464 |
|M                            4464    4464 |
|A  ROM6                      4464    4464 |
|              ROM5           HD63484      |
| YM3931                             898-3 |
|                  SIS6091                 |
|                                          |
|                                          |
| PAL                                      |
| PAL              ROM3  ROM4              |
|                                    PAL   |
|                  ROM2  ROM1              |
| CXQ70116                                 |
| D71011           6264  6264              |
|16MHz     PAL     6264  6264              |
|------------------------------------------|

Notes:
      Z80 clock     : 4.000MHz
      CXQ70116 clock: 16.000MHz
      YM3931 clock  : 4.000MHz
      YM2203 clock  : 4.000MHz
      M5205 clock   : 444598Hz; sample rate = M5205 clock / 48
      HD63484 clock : pin50- 4.000MHz, pin52- 2.000MHz
      VSync         : 57Hz

      HD63484  : Hitachi Microcontroller (SDIP64)
      CXQ70116 : Compatible with NEC V30 (DIP40)
      D71011   : ? (DIP18) 710xx is series of common NEC ICs; timers, counters, parallel interface, interrupt controllers etc
      898-3    : BI 898-3-R 22  8920  (?, DIP16, tied to HD63484)
      YM3931   : Also printed 'SEI0100BU' (SDIP64)
      SIS6091  : Custom QFP80 (Graphics controller?)
      4464     : 64K x4 DRAM
      6264       8K x8 SRAM
      6116     : 2K x8 SRAM


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