[Return to top] 6541 Mystery board. By Lee Davison.
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[6541 mystery board]

I don't know what this is, I can identify all the chips except the R6541AQ and, obviously, the missing 40 pin DIL.

The only identification is the logo on the board and the labels on the EPROM and the PAL.

If you know any more about this please e-mail me [e-mail].

Larger pictures of the board are here..

  • A 640 x 480 jpeg image.
  • A 1024 x 768 jpeg image.
  • A 1200 x 900 jpeg image.
    • I've done a dump of the 2732A 4k EPROM and it appears to contain 6502 code. You can download it as either a binary dump or Motorola S record here.
  • Download the EPROM as a Motorola S record file.
  • Download the EPROM as a binary dump.
    • I've also read the AMPAL16L8APC that seems to do the address decoding. It's here as a jdec file
  • AMPAL16L8APC as a jdec file.
    • e-mail me [e-mail]
    Last page update: 14th May, 2002.