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Old May 25th 18, 06:19 AM posted to alt.comp.hardware.pc-homebuilt,alt.windows7.general,alt.comp.os.windows-10,alt.comp.periphs.keyboard
Paul[_32_]
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Posts: 11,873
Default Unicomp Model-M a disaster --RESOLVED--

B00ze wrote:
On 2018-05-24 22:29, Andy Burns wrote:

B00ze wrote:

I had used 100% alcohol to clean the traces on the
transparent plastic "membrane" earlier, trying to get better contact to
the controller board. This weekend, flipping the membrane over, I
discovered that I had totally removed some of the traces when I used the
alcohol; so some of the traces were "cut" and will never again make
contact with the controller board. So this keyboard is toast;


Could you use some of the silver(?) conductive paint to re-draw the
traces?


Ohhh, I did not know about this. Found a "pen" of conductive paint,
ironically from MG Chemicals (the 100% Alcohol is from them.) Darn, I
have already removed a bunch of parts from the keyboard; guess I'll have
to put it all back together now.

Excellent suggestion, thanks! I will try this in maybe 2 weeks? Will
come back and let you know if it works.

Best Regards,


http://www.pckeyboard.com/mm5/mercha...uc t_code=MEM

Membrane assembly Price: $10.00

Have a chat with them, see what they've got.

Paul
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