[Coco] (no subject)

[Frank Swygert]

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!

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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.

-- 
Frank Swygert
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