Amiga.org

Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: mbrantley on January 16, 2015, 02:23:18 AM

Title: Bringing Amiga 2000 back to life
Post by: mbrantley on January 16, 2015, 02:23:18 AM

My buddy is bringing his 2000 back to life. Got a sticking point..... mouse tracking and left button do not work. Right button does work. What fault on the motherboard is a likely culprit?

Title: Re: Bringing Amiga 2000 back to life
Post by: Heiroglyph on January 16, 2015, 02:27:21 AM

Quote from: mbrantley;781825

My buddy is bringing his 2000 back to life. Got a sticking point..... mouse tracking and left button do not work. Right button does work. What fault on the motherboard is a likely culprint?

Usually it's those little green fuses. I fixed a ton of those over the years.

Title: Re: Bringing Amiga 2000 back to life
Post by: Oldsmobile_Mike on January 16, 2015, 03:42:11 AM

I'm going to say something probably pretty dumb and obvious here, but have you tested out the mouse on another system?  Have you tested the system with a different mouse?  Can you confirm the mouse is working well?  Otherwise yes, probably those fuses!  ;)

Title: Re: Bringing Amiga 2000 back to life
Post by: Heiroglyph on January 16, 2015, 04:25:03 AM

Quote from: Oldsmobile_Mike;781829

I'm going to say something probably pretty dumb and obvious here, but have you tested out the mouse on another system?  Have you tested the system with a different mouse?  Can you confirm the mouse is working well?  Otherwise yes, probably those fuses!  ;)

Yeah, I should have gone there first too.

So like Mike says, start with the mouse itself.
Check the fuses.
Then swap the CIAs and see if it changes the symptoms.

It's very rarely worse than that.

Title: Re: Bringing Amiga 2000 back to life
Post by: magnetic on January 16, 2015, 04:41:39 AM

Swap the CIA chips and report back..

Title: Re: Bringing Amiga 2000 back to life
Post by: mbrantley on January 16, 2015, 04:42:15 AM

Thanks, guys. Yes, mouse itself is known good. So we'll check the little fuses and CIA chips.

Title: Re: Bringing Amiga 2000 back to life
Post by: danbeaver on January 16, 2015, 05:18:21 AM

My fuse was yellow before it blew.

Title: Re: Bringing Amiga 2000 back to life
Post by: Oldsmobile_Mike on January 16, 2015, 05:26:53 AM

Quote from: danbeaver;781835

My fuse was yellow before it blew.

What color was it afterward?  ;)

Title: Re: Bringing Amiga 2000 back to life
Post by: A6000 on January 16, 2015, 06:09:51 AM

Quote from: danbeaver;781835

My fuse was yellow before it blew.

Did you try Retrobrite? :)