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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: mousehouse on November 01, 2011, 07:42:10 PM

Title: How to bypass A3000T keylock? Which wires to connect?
Post by: mousehouse on November 01, 2011, 07:42:10 PM: Hello fellow Amigans,

About a week ago I got very lucky and was able to purchase a 3000T from a German Amiga fan... I just got it a few days ago and have been able to boot it into a workbench installation on the hard disk.

Now, the lock key has gone missing and unfortunately the lock is in the "LOCKED" position. This causes the machine to lock out the keyboard and mouse.

Now, I read that I can connect two wires together to bypass the lock (just unplugging the wires will not help). But the lock has 4 wires, going from "ORANGE GREY GREY ORANGE".

Anybody know which two to connect together to bypass the lock?
Title: Re: How to bypass A3000T keylock? Which wires to connect?
Post by: Zac67 on November 01, 2011, 08:18:16 PM: Is there an SM for the 3kT?
On the 3k, the keyboard lines run to U350 (CIA) pins 18 and 24 on the one side, and to pins 2 and 4 on the keyboard connector (4 is +5V and 5 is GND).
I'd guess the orange ones and the grey ones go together, but you should make sure with a multimeter.

Oh wait - it locks out the mouse as well?
Title: Re: How to bypass A3000T keylock? Which wires to connect?
Post by: Matt_H on November 01, 2011, 11:00:26 PM: The lock isn't unique - you might be able to find a suitable key at an electronics store or a hardware store. Just needs to match in diameter.

In the 4000/4000T, I think you can just disconnect the lock from the motherboard - is the 3000T different?
Title: Re: How to bypass A3000T keylock? Which wires to connect?
Post by: mousehouse on November 02, 2011, 07:56:58 AM: Ah OK... didn't know there is nothing unique about the lock key... so any 3000T key will work?

Just disconnecting the lock doesn't work - keyboard and mouse then remain locked... it's smarter than the 4000 solution ;-)
Title: Re: How to bypass A3000T keylock? Which wires to connect?
Post by: slayer on November 02, 2011, 08:09:52 AM: Ya just need one of these fellas ;-)
Title: Re: How to bypass A3000T keylock? Which wires to connect?
Post by: mousehouse on November 02, 2011, 08:13:26 AM: Hmmm I might actually have one like that somewhere in a box... time to start digging ;-)

Found two different sets, one Kensington (turned out to be too small) and a set with "HP" on it, which turn out to be exactly the right size but do not work! Argh... it seems the keying is off and I cannot get the lock to turn.
Title: Re: How to bypass A3000T keylock? Which wires to connect?
Post by: Kesa on November 02, 2011, 10:17:05 AM: Quote from: mousehouse;666125
Hello fellow Amigans,

Now, the lock key has gone missing and unfortunately the lock is in the "LOCKED" position.

Too funny! :roflmao:
Title: Re: How to bypass A3000T keylock? Which wires to connect?
Post by: mousehouse on November 02, 2011, 10:42:17 AM: Quote from: Kesa;666222
Too funny! :roflmao:

Yeah... a polite way of saying the seller f*cked up...
Title: Re: How to bypass A3000T keylock? Which wires to connect?
Post by: Matt_H on November 02, 2011, 01:14:25 PM: Quote from: mousehouse;666209
Hmmm I might actually have one like that somewhere in a box... time to start digging ;-)

Found two different sets, one Kensington (turned out to be too small) and a set with "HP" on it, which turn out to be exactly the right size but do not work! Argh... it seems the keying is off and I cannot get the lock to turn.

I'm using a generic key on my 4000T - it needs a bit of pressure before it will turn.

Unless the 3000T and 4000T locks are more different than I thought :(