[Coco] Erratic MPI Behavior

[Arthur Flexser]

Sounds to me like it might be oxidized contacts on either the disk
controller's edge connector, or the MPI's.  You might try cleaning those.

Art

On Wed, 17 Mar 2004, Willard Goosey wrote:

> >From: "Boisy G. Pitre" <boisy at boisypitre.com>
> >Date: Tue, 16 Mar 2004 15:24:48 -0600
> 
> >Folks,
> 
> >90% of the time, with a working disk controller and DOS in slot 4 and 
> >the switch at that position, the CoCo 3 fires up in ECB, not Disk 
> >BASIC. If I turn the CoCo and MPI off and on enough times, it will 
> >eventually fire up into Disk BASIC, but a power cycle usually results 
> >in the ECB screen again.
> 
> Mine does this too, though not nearly as often as yours.  When this
> does happen, the IDE drive on my Glenside IDE card doesn't spin up.
> In my case, I'm pretty sure it's MPI-CoCo positioning.  If the MPI
> isn't perfectly aligned on the CoCo's connector things won't work.
> Mine is the old 26-3024 with the CoCo 3 PAL.  My MPI is screwed onto
> the CoCo's case, but unfortunately there's still some play.  With the
> MPI and CoCo off, and my drive box on, I can wiggle the MPI till the
> floppy drive lights come on and the hard drive spins up.  
> >
> >Does anyone have any possible ideas on what this might be?
> >
> >Boisy
> 
> Willard
> -- 
> Willard Goosey  goosey at sdc.org
> Socorro, New Mexico, USA
> "I've never been to Contempt!  Isn't that somewhere in New Mexico?"
>    --- Yacko
> 
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