[Coco] Drive controller problem

[Gene Heskett]

On Thursday 03 April 2014 18:38:14 Bill did opine:

> >>-----Original Message-----
> >>From: coco-bounces at maltedmedia.com
> >>[mailto:coco-bounces at maltedmedia.com]
> 
> On Behalf Of Arthur Flexser
> 
> >>Sent: Thursday, April 03, 2014 5:59 PM
> >>To: CoCoList for Color Computer Enthusiasts
> >>Subject: Re: [Coco] Drive controller problem
> >>
> >>That is indeed very confusing:  If I understand you correctly,
> >>everything
> 
> works
> 
> >>okay with the HDBDOS ROM, which means the controller is okay.  And the
> 
> Disk Basic
> 
> >>startup message (followed by an OK prompt and a blinking cursor,
> >>right?)
> 
> comes up
> 
> >>okay, which almost certainly rules out a problem with the Disk Basic
> >>ROM.
> 
> Yes, the cursor is correct.
> 
> >>Can you describe exactly what happens when you attempt a disk
> >>operation? Does the drive light come on?  Is an ?IO ERROR message
> >>what you're seeing on attempted reads and writes?
> 
> The drive light comes on as soon as I plug in the drive cable (before
> any command is typed)
> 
This, quite often is telling you that the cable is plugged in upside down 
at one end.

Cheers, Gene
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