Thanks Dave! TomorrowI thought you would like that! I had a hunch...
I suspect someone before you has been playing and adjusted L2002. The adjustment was causing the horizontal oscillator to run way too fast.
I suspect, if you monitor Q2003 collector (point 5) with your oscilloscope, we should observe the correct signal now.
I think what we were seeing before was feedback from the output of the horizontal oscillator.
This is why I don't like replacing components or twiddling anything unless I know what I am doing - and there is a good reason for doing what we are doing.
So, have you got the BASIC interpreter cassette to try?
Dave
Thanks so much sir!Sweet! Glad this is working now.
The manual h-hold on my JB-1260M(A) monitor got bonked in shipping and had to be re-adjusted for a couple sources. It was the last step of the project after fixing a broken sub-bright pot.
Good luck getting the software going! The MZ is a great series of computer.
it's a black cassette that someone recorded...but I don't know what's insideWhat tape are you using?
Dave
But this computer doesn't have internal basic software?So, what's the next step then?
Dave
Okay, I actually did search this for you and could give accurate instructions, but as a thought experiment... on the cassette we have audio which corresponds to data. At that page we have data in a format known as MZF. If we wanted to record audio to a cassette using a PC and an ordinary cassette deck, something like WAV would be a good choice. Now, what kind of software should we be looking for?Maybe can i try to download one of this software....but how can copy in cassette?
Hi Onre, thanks so much for your help!Okay, I actually did search this for you and could give accurate instructions, but as a thought experiment... on the cassette we have audio which corresponds to data. At that page we have data in a format known as MZF. If we wanted to record audio to a cassette using a PC and an ordinary cassette deck, something like WAV would be a good choice. Now, what kind of software should we be looking for?
Hint: It converts ____ format into ____ format.
Yeah, I suppose if you ran this and recorded the resulting WAV onto a cassette, it should work. Just check that it goes to the tape at a hot enough level. Decks usually have some sort of level metering in them, you want it to be close to "red".
Correct, you have to load BASIC from the cassette.But this computer doesn't have internal basic software?
Yes!I assume this model has an inbuilt cassette drive?