[Mar/25/2002]

Lode Runner The Dig Fight (Ver. B)
2000 Psikyo

PCB ID  : PS4
CPU     : HD6417604F28 (SH2)
SOUND   : YAMAHA OPL YMF278B-F, YAC513
OSC     : 57.2727MHz
RAM     : Fujitsu 814260-70 (x2)
OTHER   : 93LC56 EEPROM

          Custom chip:
                      PSIKYO PS6807 (208 pin PQFP)


ROMs    : (Filename is ROM label, extension is PCB 'u' location)


                                     Byte
Filename   Type       Possible use   C'sum
------------------------------------------
1B.U23     27C4002    Main program   D58Bh
2B.U22     27C4002    Main program   47CAh
0L.U2      64M SOP44  Gfx                    
0H.U11     64M SOP44  Gfx                    
1L.U3      64M SOP44  Gfx                    Note 1
1H.U12     64M SOP44  Gfx                    Note 1
SND0.U10   64M SOP44  Sound          

Notes: 
      1. The PCB has jumper pads to allow the use of 32M and 64M
         SOP44 EPROMs. It is configured to use 64M SOP44 EPROMs.
         Therefore, the 2nd half of some EPROMs contain only 
         FF since only half the storage was required.

      2. The PCB has a Mahjong connector. It's not used for 
         'Lode Runner The Dig Fight', but is probably used for 
         other (Mah-jong) games that run on the same PCB.

      3. The PCB has many unpopulated ROM positions used for
         other games that may require additional EPROM storage.
         Total surface-mounted ROM positions is 19. Only 5 are
         populated for 'Lode Runner The Dig Fight'.



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[Feb/25/2002]

Lode Runner - The Dig Fight  Ver B  (Japan License)
Psikyo   (C)2000
Model Number label:    58562
Serial Number label:  905332

This is a single board system with two unused Mahjong connectors.

CPUs:
  1x Hitachi SH2 HD6417604F28

Sound:
  1x Yamaha YMF278B-F OPL/ADPCM
  1x YAC513-M  DAC ?
  2x HA13118 audio amplifiers
  2x 1K ohm potentiometers (volume controls)

Other:
  1x Psikyo PS6807 208pin QPFP
  1x 93LC56 EEPROM (connected to the Psikyo custom chip)
  2x Fujitsu 814260-70 RAM (connected to the SH2 and Psikyo custom chips)

Crystals:
  1x  57.2727MHz OSC
  
  Jumpers
  JP1 2M/4M (ROM_SELECT next to program ROMs) set to 4M
  JP3 32M/64M (next to Psikyo custom chip)
              (Its not clear how this jumper is designated)
      off  on
      off  on
      on   off


ROM mark      Type        Location      Legend

1B          27C4002        U23    --->  Code ROM for SH2 CPU
2B          27C4002        U22    --->  Code ROM for SH2 CPU
LHMNOPG7    23C64000F?     U10    --->  SND 0 (Sound ADPCM ?)
LHMNOPG8    23C64000F?     U11    --->  GFX 0 High
LHMNOPG9    23C64000F?     U12    --->  GFX 1 High
LHMNOPGA    23C64000F?     U2     --->  GFX 0 Low
LHMNOPGB    23C64000F?     U3     --->  GFX 1 Low

All 23C64000F ROMs (made by Sharp) are currently undumped (surface mounts)
The 23C64000F type numbers are printed on the PCB, not the actual ROMs.
Filenames of the Program ROMs contain my programmers 16bit checksum.

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