She's a beauty, MJ!
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She's a beauty, MJ!
thanks you kind sir....i must get the HDD in a housing this week as im off work all next week!!
Okay next update:
Keyboard arrived from the USA yesterday and I've started making a gvp hard drive conversion 500 to 1000 ...
Work continues next week.
Oh it's got 8.5 mb ram now too :-)
A1000 keyboard repair.
My new (to me) A1000 has arrived from the good old US of A and is looking erm , well used lets say..
However i have one thats complete and thats all that matters. it has issues of course - why wouldn't it , everything i buy has issues :-)
various keys don't work and a ball point pen spring has been fitted on the Enter key
sooo...
lets strip her and see the damage.
Well its okay, a little water damage and a little rust but no big deal. As its an A1000 keyboard by cherry (i believe?) the keys are in individual pods which are soldered to the pcb , so to repair the 'pods' i have to unsolder each non working key ...a pain but simple enough.
non working keys:
QAE ctrl , caps lock, shift ,A,S,D,Z and one or two more.
after unsolder the key housing , usually two solder points, the pod pops right off the pcb with no damaged or stress. Open the little housing up and inside is a forked piece of metal that acts as a switch which over time has lost it strength or is dirty / rusty . a clean up and slight re tension and a quick continuity test with a multi meter and its working fine...
only another ten keys to do....:Doh:
coffee time :-)
Great info!! I have a few stubborn keys on my 1000 and one non-working (caps-lock.. Light is OK on powerup, but doesn't respond to any keypress attempts..)Quote:
Originally Posted by mjnurney
Could you take a pic of the back of the keyboard with a "sample" of which to unsolder, just so I can make sure..
I'm a very very newb on the soldering front, so I am taking it very slowly.. ;-)
Thanx!
desiv
p.s. Actually, I finally used some desolder braid stuff (whatever it's called) to remove a couple of blobs of solder on my drive light that someone before me soldered even worse that "I" would have done!! Incredible!! :o Then I resoldered it OK and used shrink tubing to cover it.. I'm sure it's not Amibay quality yet, but I think I'm getting a little closer.. ;) (I have to work my way UP to replacing the audio jacks on my A1000 MB.) :wooha:
hi,
my caps was the same - I've rebuilt the keyboard now but its pretty easy to be honest.
let me find a pic ..
PS
a solder sucker is brilliant and some what quicker (to me) than braid
The pic shown is a BBC Keyboard but its almost exactly the same as the A1000 (same shape and type)
each key is held by two soldered legs on the pcb..except caps lock it has 2 like the rest and 2 smaller ones for the built in LED in the key housing.
I'm sorry i forgot to photograph the pcb and I've rebuilt it now :-(
method:
pop the plastic key top off and turn the pcb over - look (guess) which legs are for that key and unsolder them.
wiggle the key housing off and insert a flat screwdriver into the two sides with the tabs on to open the housing.
separate the two halves , inside is a small spring (it should not fall out) a middle plastic key holding upright and a metal fork - the fork lifts out and doesn't fall apart unless you want it to.
:-)
GVP hard drive case (WIP)
Mouse / Joy extensions - to be mounted on the HDD case
Ongoing project
Kickstart 2.0 rom adaptor - just started it.
Looking good
just wondering what u going to use for feet on the HDD, me been a frog is thinking along the lines of frogs legs :roll:
lol i will give it some thought cosmic ....
:D
Nice looking A1000 mate! I'm thinking of doing a similar project in the (not too distant?) future, whereas i plan on replicating the 1060 Sidecar case to house a zorro card. Keep up the good job :thumbsup:
Another quick update on my A1000, work in progress.
As I've said before the case is in fairly poor condition so i don't mind a bit of gentle hacking , clips broke and ill fitting and if i mod the ram cover it could possibly be replaced later and no one would know..
i just need to get it all fitted up for the show this weekend :-)
Look very Nice :D:thumbsup:
thank you , I'm sure some would tut tut at hacking an A1000...
Adjustable floppy bracket made at work this morning for the hxc floppy emu to be fitted too :-)
Hope it fits....
Unfortunatly I can add the pics on here from my iPhone..
---------- Post added at 09:37 ---------- Previous post was at 09:36 ----------
Hard drive stand to make now 37mm high so the A500 hard drive sit square and flush to the A1000
Okay - almost done!
some cleaning up and a bit of lining up to do ...
I made an adjustable floppy bracket , that will lower or raise as needed and with this I've managed to line the SD card up in the original floppy hole.
The 256K front ram had to be seriously hack to a smaller size to allow fitting of the buttons and wire to be run around it. Its a tight fit!
The momentary switches are in fact poor chinese copies of poor chinese switches which amaze me no end but they work, i have ordered some more and will replace them later.
Ive made the mistake of cleaning the from ram cover at work and now its a lot brighter than the rest of the 1000, so i have work to do...
bahh
:mad: LOL, it's your machine after all... I haven't modded any of my A1000's to any aesthetic extent, nor do i think i ever will. But i plan to build an A1060 Sidecar replica sometime in the future to cover external expansion needs. :)Quote:
Originally Posted by mjnurney
true but my plastics are buggered :-(
Now, that, is a great nominee for the "quote of the year" award! :lol:Quote:
Originally Posted by mjnurney
lol , sounds like something Jordon would say...
---------- Post added at 22:54 ---------- Previous post was at 22:52 ----------
i'll have to get some nice white or chrome button for the miggy ...
I've found that the drives from an external 1010 work perfectly with the a1000! They even have the LED cable extension!
Good to know but a1010 are not so common these days having said that I have two