[8/12/98]

-----------------------------
Lode Runner V4 by IREM (1985)
-----------------------------


Location    Type     File ID    Checksum
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
TB 4K       27256    LR4-V-4K     F7FA    [   GFX   ]
TB 2D       27128    LR4-V-2D     F352    [   GFX   ]
TB 2C       27128    LR4-V-2C     5504    [   GFX   ]
TB 2B       27128    LR4-V-2B     9B06    [   GFX   ]
MB 4E       27128    LR4-A-4E     EF21    [ program ]
MB 4D       27128    LR4-A-4D.C   010C    [ program ]  [ Rev.C ]
MB 3F       27128    LR4-A-3F     99D5    [  sound  ]   
MB 3D       27128    LR4-A-3D     FD64    [  sound  ]
LB 3N       27128    LR4-B-3N     5985    [   GFX   ]
LB 4N       27128    LR4-B-4N     3D80    [   GFX   ]
LB 4K       27128    LR4-B-4K     7591    [   GFX   ]
LB 4F       27128    LR4-B-4F     9808    [   GFX   ]
LB 4E       27128    LR4-B-4E     0D07    [   GFX   ]
LB 4C       27128    LR4-B-4C     1E5C    [   GFX   ]
TB 1P     TBP24S10   LR4-V-1P     0689
TB 1N     TBP24S10   LR4-V-1N     086A
TB 1M     TBP24S10   LR4-V-1M     0935
TB 4H     TBP24S10   LR4-V-4H     0DC2
TB 4L     PAL16R4A   LR4-V-4L     22C8
LB 1N     TBP24S10   LR4-B-1N     073D    [VID Green]
LB 1M     TBP24S10   LR4-B-1M     0733    [VID Red  ]
LB 1L     TBP24S10   LR4-B-1L     0675    [VID Blue ]
LB 6F     TBP24S10   LR4-B-6F     0EB3
LB 5P     TBP18S030  LR4-B-5P     0010


Note: TB - Top board      (M62-V-A)
      MB - Middle board   (M62-A-B)
      LB - Lower board    (M62-B-C)

      TBP24S10 is compatible to a AM27S21, MB7114...
      TBP18S030 is compatible to a AM27S19, MB7112...
      PLD file is in the JEDEC format



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

Top PCB (M62-V-A), graphics PCB:

Processors      - Nanao KNA6034201 custom
                - Nanao KNA6032601 custom
                - Nanao KNA6032701 custom x2



Middle PCB (M62-A-B), CPU & Sound PCB:

Main processor  - Z80A

Sound Processor - HD6803
                - YM2149 x2 (noise & square wave generator)

    note: There may be useful information contained in the LR4-A-3D
          ROM image for people trying to emulate the game. 



Lower PCB (M62-B-C), graphics PCB:

Processors      - Nanao KNA6034201 custom
                - Nanao KNA6021901 custom x2
                - Custom (security) (old 60 pin PQFP)
 
-   
