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kanafan
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PostPosted: Wed Sep 12, 2012 8:38 am    Post subject: Fixing a water-damaged keyboard Reply with quote

I dropped water on a Microsoft Natural Ergonomic Keyboard 4000 (bong water :lol: )

Now, when I press b, it goes "pb". Pressing "n", gives "]n". I disassembled the thing, it has three plastic sheets under the keys. I cleaned the areas below the problematic keys using isopropyl alcohol, no luck. There is no visible corrosion.

Any ideas?
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ichbinsisyphos
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PostPosted: Wed Sep 12, 2012 8:50 am    Post subject: Reply with quote

Well, I can tell you that I disassembled many keyboards in my time and ever since the thin-foil-thing began they all looked perfectly fine when dry and not one of them ever worked again after being put together. None.


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szczerb
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PostPosted: Wed Sep 12, 2012 10:17 am    Post subject: Reply with quote

I suppose that good washing could help ;)

https://forums.gentoo.org/viewtopic-t-935700.html#7133040
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sikpuppy
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PostPosted: Wed Sep 12, 2012 12:20 pm    Post subject: Re: Fixing a water-damaged keyboard Reply with quote

kanafan wrote:
Any ideas?

Don't abuse drugs.
Don't use drugs near the computer.
Don't use drugs before a final exam.
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kanafan
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PostPosted: Wed Sep 12, 2012 1:22 pm    Post subject: Re: Fixing a water-damaged keyboard Reply with quote

sikpuppy wrote:
kanafan wrote:
Any ideas?

Don't use drugs before a final exam.


This is not good advice. Studying math under LSD is awesome. Seeing the formulas floating and morphing drastically improves learning.
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kanafan
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PostPosted: Wed Sep 12, 2012 3:36 pm    Post subject: Reply with quote

The keyboard is now ruined completely. I thoroughly washed the flimsy membrane thing in IPA and now not a single key works. :(

A nice keyboard ruined by just a minor spill. :o
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szczerb
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PostPosted: Wed Sep 12, 2012 3:48 pm    Post subject: Reply with quote

http://en.wikipedia.org/wiki/India_Pale_Ale ?

Also note that if you washed your keyboard thoroughly it will take days to fully dry between those plastic sheets beneath the keys.
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kanafan
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PostPosted: Wed Sep 12, 2012 3:58 pm    Post subject: Reply with quote

IPA = Isopropyl Alcohol. It is used to clean circuit boards. Evaporates really fast.
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szczerb
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PostPosted: Wed Sep 12, 2012 4:30 pm    Post subject: Reply with quote

Didn't know the english name for it.

With IPA you cleaned just the surface of a multi-layer structure. You really should try throwing it into a bucket, as suggested in the other thread. I've washed my desktop keyboards as well - worked better afterwards.
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rickj
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PostPosted: Wed Sep 12, 2012 5:02 pm    Post subject: Reply with quote

I've fixed several such keyboards. It can be done by delaminating the three sheets, washing both sides of each sheet in soapy water, then a copious water rinse. Allow to dry *thoroughly*, then re-assemble. The slightest trace of dampness after drying will stop the k/b working - I suggest a 24 hour dry before assembly. You may need a few dabs of adhesive to re-assemble, keep this well away from tracks. Cyanoacrylate (super glue) is a poor move, since it is water-activated. Rubber cement, well dried before assembly. worked for me.
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wildhorse
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PostPosted: Wed Sep 12, 2012 5:11 pm    Post subject: Reply with quote

Try ultra-pure water.
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kanafan
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PostPosted: Wed Sep 12, 2012 5:40 pm    Post subject: Reply with quote

rickj wrote:
I've fixed several such keyboards. It can be done by delaminating the three sheets, washing both sides of each sheet in soapy water, then a copious water rinse. Allow to dry *thoroughly*, then re-assemble. The slightest trace of dampness after drying will stop the k/b working - I suggest a 24 hour dry before assembly. You may need a few dabs of adhesive to re-assemble, keep this well away from tracks. Cyanoacrylate (super glue) is a poor move, since it is water-activated. Rubber cement, well dried before assembly. worked for me.


This sounds promising. Thanks.
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danomac
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PostPosted: Wed Sep 12, 2012 5:44 pm    Post subject: Reply with quote

Don't use tap water, use distilled water. Tap water is not pure and can have minerals etc in them that can cause electrical tracing.

I disassembled one of my Microsoft keyboards about 15 years ago and washed all 356+ parts with soapy distilled water and let it dry fully. Worked fine after I reassembled it. (Tip: Don't let your kid brother use your computer, he'll spill Dr. Pepper all over the keyboard! ;))

Back then keyboards were really expensive, you couldn't buy a new one for < $20. I think that keyboard cost $75 or higher - I was a poor student at the time and couldn't afford another one.

Whatever you do don't put it in the dishwasher like my friend's mother did. :lol:
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billium
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PostPosted: Wed Sep 12, 2012 6:45 pm    Post subject: Reply with quote

I think the IPA may have destroyed the conductive carbon elements.
I've found, like stated above, warm soapy distilled water followed by rinsing and drying.

@ sikpuppy .. do I have to get rid of my glass of wine now? :)

Eating instead bong ? :wink:
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Bones McCracker
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PostPosted: Thu Sep 13, 2012 8:52 pm    Post subject: Reply with quote

ichbinsisyphos wrote:
Well, I can tell you that I disassembled many keyboards in my time and ever since the thin-foil-thing began they all looked perfectly fine when dry and not one of them ever worked again after being put together. None.


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:lol: :lol:
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Bones McCracker
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PostPosted: Thu Sep 13, 2012 8:56 pm    Post subject: Reply with quote

Also, this may be useful: US Pat. 4241741 (1980) Spill-Proof Bong.
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kanafan
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PostPosted: Fri Sep 14, 2012 4:25 pm    Post subject: Reply with quote

BoneKracker wrote:
Also, this may be useful: US Pat. 4241741 (1980) Spill-Proof Bong.


A vaporizer is on its way... :lol:

The keyboard is totaled. This is the second keyboard that dies on me. The first was destroyed by a bird.
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Bones McCracker
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PostPosted: Sat Sep 15, 2012 12:00 am    Post subject: Reply with quote

I know somebody whose cat has a fetish for pulling the keycaps off laptop keyboards.
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