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Offline ChaosLord

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Re: A1000 keyboard repair
« on: November 17, 2012, 10:32:27 AM »
Easiest thing to do is to get a free old broken A1000 from someone, then throw the computer in the closet and use the keyboard.

Normally when an A1000 breaks, it is the computer, or a connector that is broken, not the keyboard.

I don't know what the inside of an A1000 keyboard looks like or I could tell u what kind it is.  Could u post a pic of the inside of your keyboard?

Some A2000 keyboards have the Cherry Black switches, which were the absolute best keyboard switches you could buy back in the 1980s!  I would be very curious to know if you have those same switches in your A1000!

Once I know for a fact what sort of technology your A1000 keyboard is using I might be able to supply you with actual repair options.

I'm sorry but I gave my A1000 away many many years ago (1991).  And I don't have any contact info for that guy.  I am pretty sure he would not still be using it or have any interest in it.  If I had some way of getting it back I could mail u the keyboard.

Or if you could find out if they ever made an adapter to adapt an A2000/A3000/A4000 keyboard to fit the A1000.  Or an adapter to adapt a regular find-them-everywhere-for-free PC keyboard to work on A1000.

I am certain that ANY kid with who is interested in electronics could make you an adapter.  I mean the keyboard connector on A1000 is a standard US phone jack (I think its called RJ-11, and an A2000/A3000 keyboard uses what is called "5 pin DIN")  Anyone who knows how to adapt one cable to another can totally custom make u an adapter more easily than fixing the keyboard.  Because if your keyboard uses Cherry switches then the whole keyboard must be disassembled (this will take longer than making the adapter) then the defective switches must be desoldered, without damaging the circuit board, then brand new switches must be soldered on.  I can't remember how much new Cherry switches cost, something like $1.00 to $4.00 each but its all the labor of the repair that would cost the $$$

It is a testament to Commodore that you would even WANT to use an A1000 keyboard in 2012.  Normal pc keyboard keycaps are made from ABS plastic.  This kind of plastic yellows with age and gets brittle and breaks.  So any normal keyboard from any normal pc company is simply unusable 20 years later.  But commodore always used keys made from an indestructible plastic called PBT which just never breaks and the writing never fades.  If you buy a random $150.00 fancy keyboard at the computer store, the writing will fade in 20 days to 1 year, depending on the technology used.  But Commodore always printed their keycaps using DoubleShot technology or Dye Sublimation technology.  That method is way expensive but it lasts forever.

Commodore Business Machines FTW!
« Last Edit: November 17, 2012, 10:42:50 PM by ChaosLord »
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Offline ChaosLord

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Re: A1000 keyboard repair
« Reply #1 on: November 17, 2012, 05:18:46 PM »
Quote from: Jope;715305
Unfortunately those cherry switched keyboards have a Philips made controller in them, which makes them slightly incompatible with some software with a tightly timed keyboard routine.

You may never actually encounter such software, but worth noting anyway. :-)

hehehehe  I would certainly never write such software.


Quote

They are not cherry switches, but they are mechanical switches that are soldered in place.
http://jope.fi/amiga/amikbd/a1kdetail.jpg

I read a long time ago that Commodore used to use Alps Space Invaders switches.  I think that is what is in the pic.


Quote

It's not an RJ11 phone jack, but a phone handset jack, with 4P4C modular connectors. http://en.wikipedia.org/wiki/Modular_connector#4P4C

Ah yes!  I remember now!  I knew all this stuff in 1985...  I remember chatting with you on IRC around 11 years ago... where did all the years go?
Wanna try a wonderfull strategy game with lots of handdrawn anims,
Magic Spells and Monsters, Incredible playability and lastability,
English speech, etc. Total Chaos AGA
 

Offline ChaosLord

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Re: A1000 keyboard repair
« Reply #2 on: November 17, 2012, 05:26:44 PM »
Quote from: TheBilgeRat;715323

If you are feeling adventurous, get an account at geekhack or deskauthority and read all the wikis on switch cleaning, maintenance, repair, etc.


I recently joined geekhack.

I have spent at least 20 hours per day for the last 9 days, studying all things keyboard.  One day I stayed up 34 hours straight, studying keyboards.

All because I need to buy a new keyboard and its insanely hard and complicated to pick out a good keyboard.  Most keyboards are crap.

Every time I pick out a keyboard I find out at some point that it has some cataclysmically horrible flaw so I hafta cross it off my list.  Uhg.
Wanna try a wonderfull strategy game with lots of handdrawn anims,
Magic Spells and Monsters, Incredible playability and lastability,
English speech, etc. Total Chaos AGA