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WTB: MZ80B FDD controller card

Posted: Fri Jan 01, 2021 2:21 pm
by dat-alex
Hi! Iam interested in Sharp Sharp MZ80b-FI any compatible card that works with my SHARP MZ80B in order to read CP/M disks

Thank you for your time

Alex

Re: WTB: MZ80B FDD controller card

Posted: Wed Feb 10, 2021 5:53 pm
by S_U_C
Do you want to run CP\M or do you want to extract data from the disks?
I have a KroFlux and can read the disks except the boot sector, but I know what it is anyway.
And I have my own software that can mount the KroFlux file and display directories and extract files.

The Mz-80A FD card will work in the B, you have to remove the EPROM and I think but not certain that there is one wire that has to be cut.

Re: WTB: MZ80B FDD controller card

Posted: Thu Feb 11, 2021 11:12 pm
by hlide
Hi John !

I have a SHARP MZ-2200 (no MZ-1T03 and no I/O box behind though) and a SHARP MZ-2500 which can run MZ-80B/MZ-2000/2500 programs (the two FDD are working!).

Re: WTB: MZ80B FDD controller card

Posted: Wed Feb 17, 2021 11:17 pm
by S_U_C
I was correct there is one track that has to be cut to convert the A card to a B card the EPROM's CS/CE signal IC 3 PIN 8 to IC 5 PIN 1
IC 5 PIN 1 will need a pull-up resistor adding. see images

Re: WTB: MZ80B FDD controller card

Posted: Wed Feb 24, 2021 10:13 am
by dat-alex
I want an FDD card so I can run CP/M on my 80b.