Yes, I took the keyswitch apart. M102 keyswitches, at least mine, are rubber domes internally. I removed the dome and cleaned the contacts as well as I could — no luck. The key will record presses if I press down very hard and then rock the key forward and back, which is why I re-flowed the solder, without success. Possibly I will swap it for the “code” key, since I rarely use that, but I’d prefer a replacement key. If I find a good modern replacement, I might do all of them. On Wed, Jan 24, 2018 at 16:01 Fugu ME100 <[email protected]> wrote:
> Have you tried removing the key cap and cleaning it internally? > > > The key caps can be removed very, very carefully. I had a bad M100 key > that would not work even after externally using cleaner, took it apart to > find a dead spider blocking the contacts. The key caps are locked to the > main PCB part by two plastic tabs they need to be eased open very gently, I > used a dental tooth pick. You can see how the plastic key cap is locked to > the base by examining the keys near the edge of the keyboard. Once the > key cap is removed you should be able to take out the spring and metal > disc, just remember how it all goes back together :) Then clean the > inside with a cotton bud soaked in contact cleaner. Hopefully there is > some debris internally blocking the contact. > > > If the plastic locks are correctly open it should take no force to remove > the key cap. If it is still refusing to move then it has not been unlocked > do not use any strong force the plastic will break. > > > Oh make sure the key cap is the right way round before reassembling > otherwise you get to practice the skill again :) > > The keys are really simple on the M100 and I assume the T102 are similar. > > ------------------------------ > *From:* M100 <[email protected]> on behalf of David Boyd < > [email protected]> > *Sent:* Wednesday, January 24, 2018 02:13 > *To:* [email protected] > *Subject:* [M100] Need a M102 keyswitch > > Hello everyone, > > Has anyone got a parts 102 and would be willing to part with a keyswitch? > My ‘B’ key has failed, and I’ve tried switch cleaner and reflowing the > solder joints including the diodes with no luck. Failing that, is there a > compatible keyswitch available commercially? > > — > Dave Boyd > -- > -- > Dave Boyd > > Hey! Just for fun, copy this line to your sig file! > -- -- Dave Boyd Hey! Just for fun, copy this line to your sig file!
