20 November 2017, 01:39 | #1 |
Registered User
Join Date: Sep 2006
Location: Thunder Bay, Canada
Posts: 4,323
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Amiga 500 Keyboard membrane fix
Hi all,
I had an a500 keyboard that wasnt working, the Return, delete and a couple others weren't working so i took a look and i found that some of the traces had disintegrated for whatever reason by the "Return" key. so after thinking on how to fix it i tried some thin wire and a nickel liquid pen. I scraped the carbon pads a little to roughen them up, laid some wire, taped it in position and then applied the nickel. Let is sit for a few hours and am happy to say it is ALIVE!! here is what i used... https://www.digikey.com/products/en?keywords=841AR-p |
20 November 2017, 01:55 | #2 |
Ruler of the Universe
Join Date: Mar 2010
Location: Lanzarote/Spain
Posts: 6,195
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Thanks for sharing the info
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26 March 2018, 11:52 | #3 |
Posts: n/a
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Good information. I also have some keyboards to repair.
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29 September 2018, 14:12 | #4 |
Registered User
Join Date: Jun 2018
Location: Oxford, UK
Posts: 66
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I had an Acorn A3000 keyboard membrane which battery leakage had damaged the traces on the flexi at the connector. The connector was completely ruined.
After reading the OP I tried a repair with a nickle pen (I have the MG chemicals brand). First I cleaned off all the flaking traces from the flexi with IPA & cotton buds. I then repaired the tracks which push into the connector with the nickle pen. I did it under a microscope which made it easier to clean/paint. Leave it a few hours to cure and it worked perfectly. The nickle flakes off a bit if you remove the flexi from the connector but that can be touched up. Seems like a good way to repair rare keyboards. So it is possible to repair flexi-edge connections with a nickle pen! Thanks for the inspiration kipper2k. |
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