*** M E M O R U M ***

I've just looked at the pictures again (last time, I was on a mobile ithingy device). Now I'm sure that Master is calling the shots :lol: Mark The Master that has been cleverly modified to run with the power off.... Actually the Master has a Gig or so of CF storage hanging off the back. It would be...

I've just looked at the pictures again (last time, I was on a mobile ithingy device).

Now I'm sure that Master is calling the shots

Mark

I did wonder how the IDE worked. I presume (not found time to read up yet) it uses the Special Reset. Somewhere in a technical question and answer section, Zilog say that really, the external control inputs should be considered to be synchronous (I think Reset was one input that was being referred t...

Best wishes to all MTX'ers, have a happy Christmas and a great New Year



Mark

Martin A wrote:Printer output tested and running to spec.

Shame about the output, that was a previously un-opened ribbon, I guess 25 years in storage has taken it's toll on the ink, sealed or not.

A short spay of WD40 may help to sort that out

Mark

Did you choose a MTX for any particular reason? Was this, did this change once the first exciting play time with the machine end? That is, after a few weeks were you using it for the same thing that it was obtained for? Or did the "educational" very quickly become "games machine"...

Did anyone play with / use / get Memotech ZX81 expansions before they got a MTX?

Did this help in the choice of getting a MTX?

Mark

Yes, the undocumented OUT (C),0 has been known about for a while. This and this are two documents that give details

You may also want to have a read of this PDF: Z80 Family Questions and Answers

Mark

When they fail, zener diodes normally go short circuit. What do you have on either side of resistor R60 (1k ohm) {don't get confused with R62, the board markings are not very helpful}. Or you can test on D16 or D18 anode leads. If the voltage on D16 or D18 anode leads is heathy (about -12V) and R60 ...

Mark