Search found 243 matches

by hlide
Sat Mar 30, 2019 1:41 pm
Forum: Hardware
Topic: [MZ-SD2CMT] GitHub link
Replies: 55
Views: 9501

Re: [MZ-SD2CMT] GitHub link

Made some commits and update the Readme.md.
by hlide
Sat Mar 30, 2019 12:05 pm
Forum: Hardware
Topic: MZ-SD2CMT - correct wiring?
Replies: 15
Views: 2089

Re: MZ-SD2CMT - correct wiring?

My mistake, Tingo! the code is using a One-Shot-Pulse generated at pin 2 and not at pin 3. I've just realized it when changing the MEGA and have the same issue than you. Pin 3 was in used when there were some play algorithms still using a simple bit toggling. When all algorithms started to use OSP, ...
by hlide
Tue Mar 19, 2019 9:45 pm
Forum: Hardware
Topic: Mz700 repair project
Replies: 42
Views: 4461

Re: Mz700 repair project

The lettering is not fading but I have doubt about color : unlike TO8 keys the color keys on MZ-700 appear to be sensitive where there is a yellowish taint. The part where there is no yellowish taint has no changes. The lettering looks better indeed.
by hlide
Tue Mar 19, 2019 7:38 pm
Forum: Hardware
Topic: Mz700 repair project
Replies: 42
Views: 4461

Re: Mz700 repair project

I tried to retrobright some MZ-700 keys without UV using only H2O2 and heat through a sous-vide cooker (not sure how to call that machine).
img05_640_480.png
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im04.jpg
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But I got a better result with TO8 keys as I could refine the experiment.
Before:
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img3 (1).png (106.37 KiB) Viewed 1061 times
After:
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by hlide
Sun Feb 24, 2019 11:31 pm
Forum: Hardware
Topic: Still faulty 80K
Replies: 20
Views: 2907

Re: Still faulty 80K

So the situation is you have no screen activity and no sound activity. Sounds like the CPU is not running. The more I think, the more I believe we need an arduino to take the Z80 bus ownership and be able to access RAM, ROM, VRAM and Intel chips to make some tests and diagnostics. - Monitor ROM ($00...
by hlide
Sun Feb 24, 2019 9:51 pm
Forum: Hardware
Topic: Still faulty 80K
Replies: 20
Views: 2907

Re: Still faulty 80K

6502!? you mean a Z80, right?
by hlide
Sun Feb 24, 2019 7:42 pm
Forum: Hardware
Topic: Still faulty 80K
Replies: 20
Views: 2907

Re: Still faulty 80K

CPU and Monitor ROM?
by hlide
Sat Feb 23, 2019 11:31 am
Forum: Hardware
Topic: Mz700 repair project
Replies: 42
Views: 4461

Re: Mz700 repair project

That's okay. Especially if you're speaking about how to repair an MZ-700, so go on.
by hlide
Sun Feb 17, 2019 10:03 am
Forum: Emulation
Topic: EmuZ-80
Replies: 10
Views: 2816

Re: EmuZ-80

Sharpals wrote:
Sun Feb 17, 2019 7:00 am
no ... my is the Multisystem emu ....
Complete name and link of your project? I don't see what it is.
by hlide
Sat Feb 16, 2019 12:55 pm
Forum: Emulation
Topic: EmuZ-80
Replies: 10
Views: 2816

Re: EmuZ-80

Many people helped me, to collect information about the machines and i wired them into the emu. The new is MZ80K color from SUC-UK !! ... But if you like, you can help me to modify one 80A core into singlelinemode and reconfigurable CTC. Hi Sharpals, it is not very clear whether you are connected t...