Need instructions for Toshiba HX-MU900 sample ram and bios upgrade

Por dhau

Paragon (1570)

imagem de dhau

27-04-2021, 05:57

Hi folks, like many of you, I recently purchased a cheap new old stock Toshiba HX-MU900 MSX audio cartridge with HX-MU901 piano keyboard. I now want to upgrade it with 256KB of sample ram and a new MSX audio bios. There is an old news update about it, but I can't find the information anywhere. Not on Hans Otten site and not on MSXPro.

Does anyone have the instruction please? Thank you in advance!

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Por mars2000you

Enlighted (6019)

imagem de mars2000you

27-04-2021, 09:04

Check the links in the wiki:

Por Repair-Bas

Paragon (1132)

imagem de Repair-Bas

27-04-2021, 11:42