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Old 21 August 2014, 17:51   #1
DarrenHD
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A4000 keyboard: space bar not working

I have an A4000 keyboard and ALL keys work fine, except the space bar. It doesn't work. Is this fixable? Anyone know?

I removed the exterior housing of the keyboard but the keyboard itself looks to be one big piece...

thanks
Darren
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Old 21 August 2014, 19:29   #2
Jope
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Open it up, tons of little screws inside, and clean it..

If the black rubber contact under the space bar key stem is shiny, wipe it with some normal 80g copier paper until it doesn't shine. The PCB/membrane itself can be cleaned of dust with a moist kitchen paper towel, dry carefully afterwards.
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Old 21 August 2014, 19:39   #3
DarrenHD
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Quote:
Originally Posted by Jope View Post
Open it up, tons of little screws inside, and clean it..

If the black rubber contact under the space bar key stem is shiny, wipe it with some normal 80g copier paper until it doesn't shine. The PCB/membrane itself can be cleaned of dust with a moist kitchen paper towel, dry carefully afterwards.
ok, what is normal 80g copier paper? :-)

There are a gazillion screws :-((
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Old 21 August 2014, 20:00   #4
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I normally use cotton buds and rubbing alcohol when I'm cleaning the rubber pads on joysticks/controllers - give all the black pads a good going over while you're in there.
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Old 21 August 2014, 21:00   #5
DarrenHD
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I normally use cotton buds and rubbing alcohol when I'm cleaning the rubber pads on joysticks/controllers - give all the black pads a good going over while you're in there.
ok i'll give that a try. without the spacebar the keyboard is next to useless :-/
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Old 22 August 2014, 06:38   #6
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ok, what is normal 80g copier paper? :-)
The same stuff you put in your printer. Normal office paper.

Quote:
There are a gazillion screws :-((
Be very gentle when tightening them, it's easy to strip the threads in the key switch tray.
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Old 22 August 2014, 18:41   #7
DarrenHD
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The same stuff you put in your printer. Normal office paper.



Be very gentle when tightening them, it's easy to strip the threads in the key switch tray.
Thanks for the tip - I will try the procedure this weekend and cross my fingers
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Old 24 August 2014, 21:16   #8
DarrenHD
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Thumbs up

Quote:
Originally Posted by Jope View Post
The same stuff you put in your printer. Normal office paper.



Be very gentle when tightening them, it's easy to strip the threads in the key switch tray.
Keyboard fixed! I removed everything as you said and it was very clear there was lots of "gunk" around the space bar area. I cleaned the entire surface with isopropyl alcohol and put everything back together and the space bar now works!

Thanks for your advice!

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Old 24 August 2014, 21:55   #9
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Good stuff, glad to hear you got it sorted.
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