Repairing a model M.
- dos
- Main keyboard: Model M.
- Main mouse: Zowie EC1evo.
- Favorite switch: Buckling Spring.
- DT Pro Member: -
Heyo,
So the other day I spilt tea on my model M.
It still worked albiet poorly. Keys directly under the spill only worked sporadically.
I took it apart, cleaned and dried it as best I could, and after putting it back together, to my horror it stopped working.
The lock lights still flash during POST but there is no response at all from any key.
Have I broken the controller?
So the other day I spilt tea on my model M.
It still worked albiet poorly. Keys directly under the spill only worked sporadically.
I took it apart, cleaned and dried it as best I could, and after putting it back together, to my horror it stopped working.
The lock lights still flash during POST but there is no response at all from any key.
Have I broken the controller?
- chzel
- Location: Athens, Greece
- Main keyboard: Phantom
- Main mouse: Mionix Avior 7000
- Favorite switch: Beamspring, BS, Vintage Blacks.
- DT Pro Member: 0086
I suppose you did not separate the plates to clean the menbranes, so it might be shorting in a couple of places. Did the controller get wet? Did you use any liquid to clean it?
- Mal-2
- Location: Los Angeles, CA
- Main keyboard: Cherry G86-61400
- Main mouse: Generic 6-button "gaming mouse"
- Favorite switch: Probably buckling spring, but love them Blues too
- DT Pro Member: -
- Contact:
Probably not.dos wrote: ↑The lock lights still flash during POST but there is no response at all from any key.
Have I broken the controller?
First thing I'd look at is whether there is a misalignment between one or both membrane layers and the controller. After that I'd look at misalignment between the membrane layers themselves. Then I'd wonder about there being adequate force between the membrane edges and the contacts on the controller, and whether those are clean. (Inadequate force and dirty contacts usually manifest as some keys working and others not, though. Not 100% failure.)
(Got ninja'd.) Oh you didn't take it apart that far and might have liquid in the gap? That changes everything. It's still unlikely you bricked the controller though.
- chzel
- Location: Athens, Greece
- Main keyboard: Phantom
- Main mouse: Mionix Avior 7000
- Favorite switch: Beamspring, BS, Vintage Blacks.
- DT Pro Member: 0086
Most likely you will have to open it, if you had spilled clean water you might get away with it, but tea will leave residue behind, and mess with everything. Also a night is probably not long enough for the membranes to thoroughly dry out.
I'd say give it a couple of days in a warm environment and if it does not work, get inside! This is assuming that the tea was plain, no sugar or milk or whatever!
An alternative to parting the plates might be a good soak with IPA, but I am not sure how the membranes will like it...
PS: Welcome!
PS2: If you didn't part the plates, the membranes are unlikely to have shifted.
I'd say give it a couple of days in a warm environment and if it does not work, get inside! This is assuming that the tea was plain, no sugar or milk or whatever!
An alternative to parting the plates might be a good soak with IPA, but I am not sure how the membranes will like it...
PS: Welcome!
PS2: If you didn't part the plates, the membranes are unlikely to have shifted.
- chzel
- Location: Athens, Greece
- Main keyboard: Phantom
- Main mouse: Mionix Avior 7000
- Favorite switch: Beamspring, BS, Vintage Blacks.
- DT Pro Member: 0086
- fohat
- Elder Messenger
- Location: Knoxville, Tennessee, USA
- Main keyboard: Model F 122-key terminal
- Main mouse: Microsoft Optical Mouse
- Favorite switch: Model F Buckling Spring
- DT Pro Member: 0158
If you put sugar in the tea, it may be a big problem.
Otherwise, I would recommend a drying time of 48 hours or more outside in the breeze, or 72 hours minimum indoors.
Otherwise, I would recommend a drying time of 48 hours or more outside in the breeze, or 72 hours minimum indoors.
- idollar
- i$
- Location: Germany (Frankfurt area)
- Main keyboard: IBM F or M
- Favorite switch: BS
- DT Pro Member: -
I have cleaned 3 or 4 key boards that were spilled. I have seen the membranes after the incident.dos wrote: ↑So I've dropped a little isopropal alcohol down the barrels of the faulty keys. Its a long shot. Hopefully tomorrow they work. If not bolt mod.
My recommendation is to open it and clean the complete lot.
The risk is that in the medium run they get broken. You can see the consequences in this thread. An example of a broken membrane follows:
- dos
- Main keyboard: Model M.
- Main mouse: Zowie EC1evo.
- Favorite switch: Buckling Spring.
- DT Pro Member: -
Thanks everyone for your help.
I took it apart and cleaned it. The membrane is broken.
Before cleaning, keys D, B, N and Space didn't work. Now only B and N don't.
Here's some multimeter-less testing: As B and N don't work, I'm guessing the membrane is broken here: Hopefully the conductive ink does the trick.
I took it apart and cleaned it. The membrane is broken.
Before cleaning, keys D, B, N and Space didn't work. Now only B and N don't.
Here's some multimeter-less testing: As B and N don't work, I'm guessing the membrane is broken here: Hopefully the conductive ink does the trick.
- Touch_It
- Location: Nebraska, United States.
- Main keyboard: Unicomp Classic USB 103 key (work) IBM F 4704 107
- Main mouse: Logitech g502 Proteus Core
- Favorite switch: Buckling spring (yet to try Beam Spring)
- DT Pro Member: -
my 1 experience with conductive ink worked well. Someone gave me the tip of using a paper clip to apply it so it wouldn't get too thick. Worked pretty well.
- LLRnR
- \m/
- Location: France
- Main keyboard: New F62 | 8BitDo | IBM Model M SSK
- Main mouse: Kensington Expert Trackball
- Favorite switch: Buckling Springs
- DT Pro Member: -
Take a look at this picture.eldorange wrote: ↑How do you remove and put back in place those LED lights in the membrane?
The LEDs are placed on a small circuit board with a layer of foam underneath. On the membrane, there are guidelines in the corners of the area where the LED board should go (see the white guidelines in the picture). You would want to remove the LED board, I suppose, if you plan to replace one of the LEDs or if you want to move the whole LED board to a spare membrane. You would of course have to unplug the ribbon from the connector (J1) first. Other Model Ms (like my 1390130) have a more standard cable (not a ribbon, but using yellow wires instead). I never had to do this myself, but I guess you'd just have to carefully detach the foam from the membrane and carefully glue it back in place afterwards. The placement of the LED board does not overlap an actual circuit on the membrane, so it should be fairly easy.