28-08-2021, 08:26 PM
Assuming you have a 8328-4 or -6 coreboard, there is nothing to do other than burn out out PC85b Roms E, F, G, H & I with F & G needing 27128 eproms and the others 2764's. Your already installed a heat sink under the regulator, all you need now is some 27128 or 27c128 eproms. We have a few game ROMs (some original and some I have made) in the repository plus others. See the eprom_programmer_and_64k_rom_pak_instruction_manual.pdf for the procedure on how to make your own eproms. I just burnt out the Micro Defender game to a 27128 having to split it into 2 x 8k parts and which I will put in the Rom H (Viatel) socket and add a game in the 2nd 8k part of roms E & I and now looks like
The Engineering Notes I mentioned are in engineering_change_notices_85.zip in the MbeeTech Repository in the \Microbee\Documentation\Manuals\Technical folder. The PDF is Searchable (as are all of our PDF's), so just do a search for PC85 and you will find it all.
The Engineering Notes I mentioned are in engineering_change_notices_85.zip in the MbeeTech Repository in the \Microbee\Documentation\Manuals\Technical folder. The PDF is Searchable (as are all of our PDF's), so just do a search for PC85 and you will find it all.
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ChickenMan
ChickenMan