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Old 20 March 2018, 07:24   #1
mEnTL32
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A2000 keyboard issue

My Amiga 2000 has been having a weird keyboard issue. Often after booting, the first key I press acts like it is held down so I get 200 or so of that char. Or, I'll click a key and a minute or two later it will register.

I figured it was just my original keyboard getting old, so I picked up the Lyra-3 PS2 adapter. It does the same thing.

When I took out my leaking battery, it had made a little mess on the mother board but it didn't look too bad. I notice the keyboard socket is right near there though; anyone see something like this?
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Old 20 March 2018, 10:09   #2
Robbie
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That happened with a Cherry keyboard I used to have. Didn't happen with any other keyboards so I put it down to a faulty chip in the keyboard itself.
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Old 21 March 2018, 02:00   #3
idrougge
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I think Cherry keyboards have a capacitor that goes old after twenty years.

There are also some fixes introduced in later A2000 board revisions to handle keyboard variations.
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Old 22 March 2018, 14:01   #4
Signman
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I was having a lot of issues including that one. I used contact cleaner on all areas and worked pretty well.
Worth a try.
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Old 02 April 2018, 21:25   #5
mEnTL32
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Contact cleaner did the trick! It looks like some corrosion did sneak up on the socket housing so it might need to be replaced eventually.
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