deskthority

I managed to fix my M2!
It was the corroded crystal that caused my board to fail.
I tried to replace it with a generic 4Mhz SMD crystal but it was to wide for the board.
I could have bodged it but ended up using a though hole crystal standing on top of the board with bent legs instead.

Hope this ...

I had to check, I think it's Teensy 2.0.
I bought it as an assembled board with the teensy soldered to the board.
And I just realized that I need to remap Alt-Gr too.

Thanks!

Oh, crap, I bought my Teensy already programmed haha. I guess I have to learn how to program it
Well, I have messed around with Arduino's and ESP8266. I'll assume it's easy enough.

Many thanks!

Hi all,

I'm experimenting with using the Model M on my modern mac.
So far it's excellent. I didn't expect it to work this well.
The only issue I have this far is that I'm missing the volume button on the keyboard.
Is there a way of remapping F11 and F12 to change the volume?

Thanks!

I didn't get a notification when you posted and missed your last post. I need to check my forum settings.
I have put my M2's away while I wait for for the new crystals to make room for other projects. I'm actually writing this post on a 1987 Model M on my modern iMac :)
I will bring the M2's out in ...

Great post, thanks

I didn't think to check all my IC's. One has the Lexmark/Motorola 1395980 but my bad board has the ST/IBM branded EF6805U3.
I checked with the scope and it sure looks to be a crystal.
However, on my bad board the crystal just goes high (1,1v) I went ahead and ordered some two pin ...

Thank bro, that's useful
How did you figure out it's the crystal oscillator pins? I tried to find the data sheet for the IC but couldn't find it.
You have it? Please share :)
I thought I'd try to swap it with one from my working boards to test it. but those bastards have three pins.
I guess i'll ...

Hi all,

Has anyone figured out what that Y1 is?
I have successfully repaired two of these M2's but my third one needs something more than a recap.
The board looks fine but Y1 is corroded.