VOGONS


First post, by deksar

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Hello everyone.

I have IBM KB-8926 keyboard (https://i.imgur.com/mqF1mns.jpg), it was dirty and followed this guide to clean.

https://www.youtube.com/watch?v=qDCI1LK-CSA

Now, when I press w, "we" appears, same goes for 2, 3, x, s, d, c - neighbouring buttons. Just that side, though.

I only washed the buttons and dried them, never touched the board, membrane, conductive trace parts.

Thinking the buttons are still wet, I've checked everything, each part of the keyboard and didn't find any water somewhere.

I tried to remove the buttons and test the keyboard by the touching the plastic membrane, still the same. See the picture please.

I really hope I didn't kill this keyboard, it's not that much money, not a mechanic one, but I really liked the typing on it. 🙁

What am I missing here? Any clue would be much appreciated.

EDIT: And even removing the plastic membrane, directly touching the main conductive trace surface (the surface showing in the 3rd picture) leads multiple button pressures as well, with keys; 2, 3, w, s, d, x, c

Reply 1 of 2, by deksar

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The issue goes like (from top to bottom):

Key 2: Outputs 23
Key W: Outputs we
Key S: Outputs sd
Key X: Outputs xc

and to the right;
Key 3: Outputs 23
Key E: Outputs we
Key D: Ouputs sd
Key C: Outputs xc

Reply 2 of 2, by Error 0x7CF

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One of your row or column lines is shorted with one of the others. Whether it happened due to the cleaning or not may just be coincidence.

Old precedes antique.