deskthority

Alright, had some time this weekend to dig back into this and thankfully all is sorted out with the suggestions you al gave!

Despite the many trials and tribulations of trying to use mingw64 (I know it is not recommended but installing the VM was just as much of a hassle, what with file sharing and ...

I'd suspect a reset pin issue. By default TMK uses PB7 which apparently isn't exposed on the Pro Micro. You should be able to edit the port and bit in config.h to match how yours is wired now. It probably needs to be on something other than port D.

https://github.com/tmk/tmk_keyboard/blob ...

The Z150 is slightly non standard in how it implements the XT protocol. Soarers will do weird stuff as you describe. TMK handles it just fine. You should be able to flash it to your existing converter without changing anything. Double check that the reset pin is wired up - it's not optional with ...

The Z150 is slightly non standard in how it implements the XT protocol. Soarers will do weird stuff as you describe. TMK handles it just fine. You should be able to flash it to your existing converter without changing anything. Double check that the reset pin is wired up - it's not optional with ...

Hello!

I recently came into owning a Zenith Z150, which types a dream aside for one problem : some pretty gnarly key chatter. This chatter manifests both as missed keypresses as well as repeated ones that do not stop until another keypress.

The board came pre-equipped with an custom adapter ...

Hello all!

Some time ago I was looking to adapt an NCR4950 keyboard that I came across to USB from its proprietary ADDS format. Some users informed me that this was possible, and even did so themselves! They provided some steps on how to do so that they had written up initially, but I ...

Bump, still haven't gotten around to replacing the IC since I can't find the original pinout chart online for the chip.

Anybody have any experience with this?

Saw this in a "viral" video stop motion of a man eating his previous keyboard.

Anybody got an idea as to what this board may be?

Has anyone done this conversion before?

Delirious wrote: 19 May 2019, 00:35 3F6F53CB-5B09-4DE8-BC3D-03F53FF105D9.jpeg

EBD0B4CC-5D82-4CD2-A447-8C63DFAC682E.jpeg

E98F7EC3-F55B-4DBF-89CC-BBE3F9792A32.jpeg

99C817E0-E1AE-4EF0-9D17-9C149C0E6141.jpeg

I'm sorry, Is there any way of doing the conversion without opening the case?

You confirmed with the continuity tester that each of the colors from the keypad cord correspond with those positions in your ps2 pinout image?

I'll keep thinking but nothing is jumping out at me immediately. Do you have a teensy? Soarer's simple logic analyzer would be a good tool to test with ...

snacksthecat wrote: 18 May 2019, 22:21 Can you post the ps2 pinout picture you referred to in the OP?

Sure:

Also, I saw a comment online instructing not to join the two shield grounds. Is there any reasoning for this?

The first thing to check would be is it getting (enough) power?

Do you have a multimeter?

Open up the keyboard and look for all of the ICs (chips).

Use your multimeter to measure the voltage by touching the probes to the pins indicated in the picture.

https://i.imgur.com/BHzGaH8.png

Each ...

Hello.

Recently I came across a P70 keyboard which I hoped to easily convert to PS/2. However, it turns out to not be as easy as is reported by every single post on here.

I spliced up a Fellowes Keypad, which had wires of orange, red, brown, and black color. My friend tested for continuity, and ...

There's always the possibility I borked this damn thing into a Kentucky fried paperweight when I was feebly attempting to adapt it to PS2 earlier. What should I do now? I thought the pinouts were correct. I don't want this thing going to waste, I got it NOS.

Next best thing I can think is ...

So I made one last effort to adapt this without completely removing the IC. My friend helped me resolder some shoddy jumpers of mine and remove certain resistors and capacitors to match theinversekeys pcb. After wiring the teensy, we got stuck on the fact that the keyboard would power on, but not ...

Lbibass wrote: 30 Jan 2019, 02:26 It is possible that you may need to switch the jumpers on the inside.

I tried every combination that was possible outside of vcc and sgn grnd, nada

So I've been trying to use soarers firmware on the NCR 4950, however whenever I use HID listen the board is listing itself as PC/XT, despite the fact the keyboard is supposed to be AT. Also, the HID listen is kicking out error code wEE and remainder fffc. Does anyone know what that could mean?

TheInverseKey wrote: 25 Jan 2019, 02:22

consideringquiet wrote: 25 Jan 2019, 02:06 Did you ever get the chance to finally adapt this board?

Here is mine working and fully restored:

viewtopic.php?f=7&t=19692

Awesome! I didn't even see the thread. Guess I hopped off deskthority for a while in frustration, thanks again!

No but really if you desolder the IC on it and replace it with a Teensy++ 2.0, you'd have a fully programmable keyboard. And there's no chance of frying the board because, well, there's nothing to fry!


So, my friend found a pinout for the original IC online. Would we theoretically just match ...

So, I haven't yet given up this project. The whole wiring a PS/2 cable is out the window, though. I'm considering replacing the IC altogether. However, I'm unsure if my testing on this board borked it all together.

Did you ever get the chance to finally adapt this board?

Does anyone have a comprehensive guide to convert this thing?

You're welcome :D So... What was the problem?

As for the second, I'm not sure: broken rivets causing the spring or flipper to misbehave? Contamination inside the barrel causing additional friction?
Turns out the stabilizer somehow got off it's track :s

I'm guessing it could be either of those. I ...

Remove the C, V, comma, and period keys to reveal the tracks in which the stabilizer wire engages. Remove the left Alt key as well, it may simply be that the wire is unclipped from the bottom of the spacebar.

If that's not it, remove more of the adjacent caps to see if there's anything visible ...

Hey again,

Is there any way to fix binding on the spacebar? I'm not sure of the state of the stabilizer on the board i just received. I can see it moving with the spacebar, but it doesn't seem to stabilize the left side. Which is pretty unfortunate for me as I use my left thumb to hit the spacebar ...

snacksthecat wrote:

Right?

People consider Focus poor quality? That's news to me. Anyways, is it possible that you have it set to XT mode instead of AT mode? There would be a switch on it if so that you need to toggle.
I meant they just didn't have the best qc or best parts. I personally like their stuff but still :/

I ...

I'm starting to think I should just delegate these projects to other people... Whenever I touch things like this they just turn to trash. I'm like the Midas of breaking keyboards I swear

The guy off Reddit pointed out that I had the correct wiring, and said I likely fried the board. What do I do now?