TT & MegaSTe Keyboard Repair

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dexterslab
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TT & MegaSTe Keyboard Repair

Postby dexterslab » Wed Jan 20, 2010 9:25 am

in the lab today, i fixed two TT keyboards with broken membranes. Both went in the same place in the top left hand corner (as your looking at the front of the keyboard)

This fixes the common problem where the control, shift or esc keys stop working, if other keys have stopped working then you'll need to trace and find the break in the track.

once you have the membrane out of the keyboard you can use a fiberglass pencil to remove the green insulator from the membrane and apply conductive paint to fix the tracks. I'd recommend putting tape over the repair to hopefully stop it happening again.

It may also be worth opening and applying tape to stop working keyboards to prevent then failing in the first place.

tt_mste_keyboard_01.jpg


tt_mste_keyboard_02.jpg


tt_mste_keyboard_03.jpg
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Re: TT & MegaSTe Keyboard Repair

Postby wongck » Wed Jan 20, 2010 11:45 am

Good to see how it's actually done. :thumbs:
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Re: TT & MegaSTe Keyboard Repair

Postby mdivancic » Wed Jan 20, 2010 11:56 am

Where do you get the conductive paint?
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dexterslab
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Re: TT & MegaSTe Keyboard Repair

Postby dexterslab » Wed Jan 20, 2010 12:25 pm

tbh i made the 2nd neater by putting masking tape either side of the 'new' track before painting... but i didn't take pics of it

it's pretty simple and easy solong as your carefull with removing the green mask/insulator from the membrane, it's very easy to take off the track with it

@mdivancic:
i bought mine from a local motor/car place as it's also used to repair windscreen demister wires. But just search for 'conductive paint' on ebay and you'll see loads available from around the world.

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Re: TT & MegaSTe Keyboard Repair

Postby Desty » Wed Jan 20, 2010 4:14 pm

dexterslab wrote:@mdivancic:
i bought mine from a local motor/car place as it's also used to repair windscreen demister wires. But just search for 'conductive paint' on ebay and you'll see loads available from around the world.

I was just going to ask this, because that's exactly what I need to fix on my car!! :lol: A bit worried about painting on glass, though :cry:
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alexh
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Re: TT & MegaSTe Keyboard Repair

Postby alexh » Wed Jan 20, 2010 10:29 pm

Desty wrote:A bit worried about painting on glass, though :cry:

Cellotape top and bottom of the wire and either side of the break. Remove before drying.

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Re: TT & MegaSTe Keyboard Repair

Postby Desty » Thu Jan 21, 2010 2:49 pm

alexh wrote:
Desty wrote:A bit worried about painting on glass, though :cry:

Cellotape top and bottom of the wire and either side of the break. Remove before drying.

Thanks Alexh, that sounds like a good idea. :cheers:
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Re: TT & MegaSTe Keyboard Repair

Postby dhedberg » Sat Apr 16, 2011 8:28 pm

Just want to say thank you for posting this article! It provided all the information I needed in order to repair my external TT keyboard.

I went through all the trouble of adding an external keyboard connector (and a switch to switch between internal and external keyboards) to my Falcon 030, only to find out that the brand new(!), never used(!), TT keyboard I just bought on E-Bay did not work properly! How can that be!? The F1, Control, and left Shift keys were all totally dead. After considering returning the keyboard to the seller I figured I could just as well try and repair it as finding another keyboard in mint condition is not that easy. I bought some silver paint and within 2 hours it was done.

Again, a big thanks to dexterslab for providing all the information and the images! It saved my day! Much appreciated!
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