Date: Mon, 1 Nov 2004 00:44:33 -0500 From: "Randall Smith" <[EMAIL PROTECTED]>
Well, moving right along I decided to put the old keyboard back on. Things worked as normal, I hit the power button and the power came back on. Later I actually needed to manipulate some files on the server, and create a new folder. It was then that I found my keyboard didn't work!!!!
If Clark's suggestion of replacing the fuse doesn't work, then you most likely blew the ADB chip. The controller for the ADB bus is in the CUDA chip which is most likely marked 341S0788. There was another model that was marked with a similar number but I don't remember what it was. It's a little 28 pin surface mount chip about 1" long and 1/4" wide with 14 pins on each long side. The bad news is that it's a custom Apple chip. The good news is that it's been used in machines all the way back to some late model Quadras (and equivalent LCs and Performas) so it's not difficult to find a motherboard from which you can salvage one. For example 7200 motherboards are often available for very little if you can find them.
The only other task once you've found one you can salvage is successfully desoldering it from its host and installing it in your machine.
Jeff Walther
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