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Keyboard cleaning tips?

 
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01sporty



Joined: 12 Apr 2008
Posts: 36

PostPosted: Wed Apr 18, 2018 10:12 pm    Post subject: Keyboard cleaning tips? Reply with quote

I've been cleaning my keyboards by washing the rubber half with all purpose cleaner, rinsing with water and blowing them dry with an air hose.

The printed circuit board I wipe down with alcohol.

Over the years, this has become less effective. Does anyone have any tricks to put the snap back in them?
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01sporty



Joined: 12 Apr 2008
Posts: 36

PostPosted: Thu Apr 19, 2018 9:26 pm    Post subject: Reply with quote

Since nobody else suggested anything, I decided to try sandpaper. Yup, sandpaper. I disassembled my worst remote, and sanded both the pc board and the rubber keys. I used a small patch of 2000 grit and dressed the board and keys just enough to remove any shiny bits. Worked brilliantly. All sluggishness is history.
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The Robman
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Joined: 01 Aug 2003
Posts: 18514
Location: Chicago, IL

PostPosted: Thu Apr 19, 2018 11:22 pm    Post subject: Reply with quote

Wow, I'm surprised that worked on the rubber keypad.
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Rob
www.hifi-remote.com
Please don't PM me with remote questions, post them in the forums so all the experts can help!
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01sporty



Joined: 12 Apr 2008
Posts: 36

PostPosted: Fri Apr 20, 2018 9:58 am    Post subject: Reply with quote

It didn't just work, it worked incredibly well. The old 6131 hasn't been this crisp and responsive since it was new.
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The Robman
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Joined: 01 Aug 2003
Posts: 18514
Location: Chicago, IL

PostPosted: Fri Apr 20, 2018 11:00 am    Post subject: Reply with quote

What that implies is, the rubber used for the keypad must have conductive qualities, rather than they add a conductive surface to the base of the buttons.

For the PCB itself, rather than using sandpaper, you could use an electrical cleaner, like Deoxit, which is what I've always done.

Another option that I've never tried on a PCB is lighter fluid. I used to use Deoxit to get stubborn stickers off of things, but have since discovered that lighter fluid is just as good (and cheaper). Luthiers use it to clean guitars.
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Rob
www.hifi-remote.com
Please don't PM me with remote questions, post them in the forums so all the experts can help!
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01sporty



Joined: 12 Apr 2008
Posts: 36

PostPosted: Fri Apr 20, 2018 11:50 am    Post subject: Reply with quote

From what I could see, the rubber button is filled through and through with carbon. Pretty much the same thing for the pc traces.
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Barf
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Joined: 24 Oct 2008
Posts: 833

PostPosted: Fri Apr 20, 2018 11:53 am    Post subject: Reply with quote

I use an ultrasonic cleaner for the keymats (and most of the other plastic parts). Can damage superficially printed labels.
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