I currently have a strange issue with my keyboard. I'm not sure it's a recent issue - I've been starting to mod my A1200 (and just finished replacing the capacitors, which appears to have been successful), but hadn't previously thoroughly tested it - although 20 or so years ago, when I l had previously used it, it was working fine.
The symptoms are slightly odd, as the keys mentioned in the subject do work consistently, they just don't work when you first press them
* They work when you hold them down, and the auto-repeat for the key starts
* They work if you press one of them, then any other key (for example briefly holding "c" while pressing "n" (or any other key) prints "c" to the screen
This implies to me that it isn't a broken connection, but perhaps some interference(?) somewhere...
I've checked & cleaned the connector and ribbon cable, and they both look fine. I've also checked and cleaned again the entire board, and can't see anything obvious.
Does anyone here know what may be the cause? Is it likely to be the keyboard membrane? If so, is it fairly easy to do so to check / clean?
Many thanks, I really hope this is a (relatively) easy fix - especially as hopefully soon I'll be getting some replacement keycaps (black and white ones from a Kickstarter campaign)