Search found 578 matches

by hlide
Wed Sep 22, 2021 11:00 pm
Forum: Hardware
Topic: MZ-80K displaying garbage chars on screen
Replies: 5
Views: 53

Re: MZ-80K displaying garbage chars on screen

No, no difference. You could put a CMOS Z80, it also works.

What is the frequency of the pulses on pin 6?
by hlide
Sun Aug 29, 2021 12:59 pm
Forum: Hardware
Topic: replacement parts for MZ-80K help needed
Replies: 16
Views: 266

Re: replacement parts for MZ-80K help needed

I second dat-alex. And exposing your issues with some pictures is better to get better answers ;).
by hlide
Sat Aug 28, 2021 11:42 pm
Forum: Hardware
Topic: replacement parts for MZ-80K help needed
Replies: 16
Views: 266

Re: replacement parts for MZ-80K help needed

If not through usual sites or ebay, they should be findable at UTsource.
by hlide
Fri Aug 27, 2021 9:48 pm
Forum: Hardware
Topic: replacement parts for MZ-80K help needed
Replies: 16
Views: 266

Re: replacement parts for MZ-80K help needed

There is no reason a LH0080A or LH0080B won't work. I even have one of MZ-700 with a CMOS Z80@20MHz running at 3.5MHz.
by hlide
Fri Aug 27, 2021 10:19 am
Forum: Hardware
Topic: MZ-80K where to start to repair
Replies: 17
Views: 379

Re: MZ-80K where to start to repair

Can I suggest you to unplug the CGROM temporarily to check what the screen displays?
by hlide
Thu Aug 26, 2021 2:57 pm
Forum: Hardware
Topic: MZ-80K where to start to repair
Replies: 17
Views: 379

Re: MZ-80K where to start to repair

That doesn't sound as regular characters. Could you make a short video to see how they move? I count only 20 lines.
by hlide
Sun Aug 22, 2021 10:16 am
Forum: BASIC
Topic: SP-5025 "Dictionary"
Replies: 1
Views: 75

Re: SP-5025 "Dictionary"

Translating PET BASIC programs into MZ-80 K BASIC progams?
by hlide
Sun Aug 22, 2021 10:13 am
Forum: Hardware
Topic: MZ-80K where to start to repair
Replies: 17
Views: 379

Re: MZ-80K where to start to repair

when you open the case, you can see under the screen some potentiometers to control horizontal and vertical synchronizations.
by hlide
Tue Aug 17, 2021 8:16 pm
Forum: Buy/sell
Topic: MZ-700's for sale
Replies: 7
Views: 199

Re: MZ-700's for sale

And I would be interested in a RFS board for my MZ-80 A.