Yowl
Moderator   Posts: 54 Registered: 31/8/2004 Status: Offline
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posted on 12/9/2006 at 11:23 |
Hi Guys
I have a new question.
If one were to work on some new hardware mods for the MZ80 series computers, which would be the most useful or interesting?
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theoldun
Talker  Posts: 4 Registered: 19/9/2005 Status: Offline
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posted on 2/10/2006 at 14:04 |
quote:
Hi Guys
I have a new question.
If one were to work on some new hardware mods for the MZ80 series computers, which would be the most useful or interesting?
Hi I have been toying with the idea to use mini disk player/recorder through the casette ports as an alternative to disk drives as they are becomming rare. ____________________
Charles Mills
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theoldun
Talker Posts: 4 Registered: 19/9/2005 Status: Offline
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posted on 2/10/2006 at 14:15 |
quote:
Hi Guys
I have a new question.
If one were to work on some new hardware mods for the MZ80 series computers, which would be the most useful or interesting?
Hi I have been toying with the idea to use mini disk player/recorder through the casette ports as an alternative to disk drives as they are becomming rare. ____________________
Charles Mills
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Anonymous
Unregistered
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posted on 10/10/2006 at 13:00 |
quote:
quote:
Hi Guys
I have a new question.
If one were to work on some new hardware mods for the MZ80 series computers, which would be the most useful or interesting?
Hi I have been toying with the idea to use mini disk player/recorder through the casette ports as an alternative to disk drives as they are becomming rare.
Does anyone have any idea what the feasability is of using modern flash ram?
After all it's very readily available, cheap, fast and would hold a lot.
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rc3675
Talker Posts: 3 Registered: 10/10/2006 Status: Offline
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posted on 10/10/2006 at 13:02 |
hmm, seems the last post didn't log who I was. This is just to log it.
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Jonas
Talker  Posts: 19 Registered: 15/5/2006 Status: Offline
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 posted on 14/6/2009 at 19:18 |
Hmmm, I want to revive this thread.
The mods I am looking for is, more or less, substitutes for hard-to-find expansion cards, for example graphics expansion cards, floppy I/O-cards or RAM-expansion boards.
The schematics is available!
Right now I am reading Steve Ciarcias excellent book "Build your own Z80 Computer". My intention is not to build a complete computer, but the book describes interesting things like memory and I/O decoding and I understand how it is done.
____________________
Those were the days!
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Jonas
Talker Posts: 19 Registered: 15/5/2006 Status: Offline
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posted on 24/7/2009 at 16:25 |
This is perhaps not a mod, but I needed an interface card so...
I own two MZ-700, one MZ-800 and last but not least, a MZ-80B. I have a MZ Disk with an interface for MZ-700 but not for MZ-800. The interface for MZ-800 is quite simple: three ICs, three caps and one electrolyt. Of course you need to design a double-sided PCB. It is done and it is working! Now I can use my MZ-800 with a MZ Disk.
The design is a modification of the original interface. Different ICs with different logic but the end result is the same.
The schematics and pcb-design is available if someone wants it.
Jonas ____________________
Those were the days!
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kelp7
Expert  Posts: 58 Registered: 17/11/2006 Status: Offline
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posted on 4/11/2009 at 16:07 |
quote:
Hi Guys
I have a new question.
If one were to work on some new hardware mods for the MZ80 series computers, which would be the most useful or interesting?
I wouldn't mind seeing a sound card
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Jonas
Talker Posts: 19 Registered: 15/5/2006 Status: Offline
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posted on 13/11/2009 at 21:32 |
I have found two simple and easy-to-build sound cards here:
http://www.epanorama.net/circuits/dacs.html />
I will try to build one (perhaps both) without the centronics interface. The cards are 8-bit of course and the sample rate will be low. ____________________
Those were the days!
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Jonas
Talker Posts: 19 Registered: 15/5/2006 Status: Offline
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posted on 13/11/2009 at 21:47 |
Two projects (almost) completed:
RS232-interface for my MZ-800 (or MZ-700s if I had the expansion box...)
Centronics interface for my MZ-80B.
Double-sided PCB-design of course. This is perhaps not rocket science and it is not a mod, but it was fun and the cards were not available in the shop! ____________________
Those were the days!
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bomi
Talker  Posts: 5 Registered: 14/4/2004 Status: Offline
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posted on 8/12/2009 at 16:58 |
If interested, take a look on MZ-800 Unicard
Expansion card for computer Sharp MZ-800. Connection to SD / MMC card with FAT16 filesystem. Emulated FD controller. MZF repository. ____________________
Miroslav Hajda
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nama-chari
Chattie Posts: 30 Registered: 3/12/2008 Status: Offline
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posted on 20/12/2009 at 12:32 |
I'd like a SD based expansion card that mimics a MZ floppy drive for the MZ-80 series...Well, I can dream.
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sharpmzorg
Moderator  Posts: 46 Registered: 28/3/2004 Status: Offline
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posted on 10/1/2010 at 10:04 |
I have connected a Commodore floppy drive 1571 to the 700.
Tim Cowell / SUC/UK made in 1988 a modem (serial interface) for the 700.
I made a tiny centronic interface for the 700.
Also available a connection for MZ-plotters to the PC.
Expansions for the 80K:
RS-232C, Hi-Res-board and RGB card.
All these and a lot more are on my site and a lot too by the SUC.
Karl-Heinz
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Ade
Talker Posts: 3 Registered: 20/10/2008 Status: Offline
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posted on 6/5/2010 at 17:29 |
I'd like to build an RS232 interface board for the '80K. I'd also quite like to re-create either the official Sharp, or the SUC, interface box - the fabled MZ80I/O...
www.sharpmz.org has a copy of the service manual, which in turn contains the circuit diagram. Unfortunately, as it's a photocopy, it's not possible to re-create the PCB layout; does anyone have a copy of the manual they could scan the PCBs?
____________________
Cheers!
Ade
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nama-chari
Chattie Posts: 30 Registered: 3/12/2008 Status: Offline
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posted on 30/5/2010 at 09:26 |
Ade,
Any luck finding the schematics?
quote:
I'd like to build an RS232 interface board for the '80K. I'd also quite like to re-create either the official Sharp, or the SUC, interface box - the fabled MZ80I/O...
www.sharpmz.org has a copy of the service manual, which in turn contains the circuit diagram. Unfortunately, as it's a photocopy, it's not possible to re-create the PCB layout; does anyone have a copy of the manual they could scan the PCBs?
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Ade
Talker Posts: 3 Registered: 20/10/2008 Status: Offline
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posted on 2/6/2010 at 16:06 |
I have the schematics, although I'm not sure all of the ins & outs are detailed (e.g. power decoupling); but I've not yet gone looking to see if all the ICs are still available.
Meantime, I've got "almost" enough components to build a version of SUC's hardware box, and their serial card...
Everything's backburnered for a couple of weeks, however, as I'm having a new office (well, the current one is being demolished & a new one in its place)... ____________________
Cheers!
Ade
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