[Coco] (no subject)

Richard E. Crislip rcrislip at neo.rr.com
Mon Jan 2 18:38:32 EST 2012


On Sunday, January 01, 2012 12:11:55 PM Frank Swygert wrote:
> Obviously the first step is to try the drive system on another CoCo. On
> this one, the keyboard problem may be a bad PIA chip. IIRC there are two
> PIAs in the CoCo that control various things. One controls the keyboard
> input, and I think it has some other function tied into it as well. Can't
> remember what, but is some I/O function. That could possibly affect the
> disk drives... but depends on what that other function is. Haven't been
> into repairing a CoCo in years, can't remember!
> 
> --------------
> Date: Sat, 31 Dec 2011 07:33:51 -0500 (EST)
> From: Bill Pierce<ooogalapasooo at aol.com>
> 
> Other than the keyboard problem, the Coco boots fine without anything
> plugged in or with MPI or Disk controller. It has an auto boot system that
> is part of the AT Keyboard interface. It gives about 5 choices for booting
> (OS9 Lv1, OS9 Lv2, Basic ect.) then after a few seconds if you make no
> choice, it runs "DOS" to boot OS9. As for the power supply, the AT
> interface and a fan are hooked up to it as well. The Disto 2 meg has it's
> own supply. As I said, I can type in a simple program and it will run
> fine. As long as I avoid the "bad" keys.
> 
> The one thing I didn't do with the drives was try a different case/PS.. I
> have 2 so I will do that today.

Dang!! You sure you are not talking about the Amiga? 8-)



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