TI Professional Computer (TIPC) Service Manual?

David Gesswein djg at pdp8online.com
Mon May 30 20:39:14 CDT 2016

On Sat, May 28, 2016 at 10:42:29PM +0200, Martin Peters wrote:
> I wanted to reactivate a TI Professional Computer (TIPC) and all I get
> some seconds after powering it on is the message
> "** system error ** 0004"
> and a beep, lasting for about 2 seconds.
> The TIPC is an early, not really compatible clone of the IBM PC 5150. I
> wonder if I need to do some reengineering and/or disassembling or if
> there is a service manual out there.
I didn't find them in the technical reference but did find a list in the
bios listing. If I read that correctly its interrupt or timers failed.
Should be LED ON OFF OFF.

I had one as part of my vintage computer exhibit.

I had started to put some stuff online. So far I have the disks that we got 
from the local TI usergroup.

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