Michael,
Thank you, that was what I was planning as my next step. I haven't
checked to see if the service manual has a full schematic.
The main purpose of my message on here was to see if I was missing
something obvious like an option trace cut or something like that that I
missed when I checked the manual.
Thanks again,
Mike
On 1/31/2024 2:29 PM, Michael Thompson wrote:
Connect an oscilloscope to the output of the single-sided sensor and
see if it works. If so, trace the signal through the logic and see if
it gets to the I/O connector that goes to the greaseweazel.
On Wed, Jan 31, 2024 at 2:38 PM Mike Katz via cctalk
<cctalk@classiccmp.org> wrote:
I have recently acquired a Qume Model 842 double sided 8" disk drive.
I have reset all of the settings to factory default and hooked it
up to
my greastweazle.
The drive works perfectly for double sided disks (using the
appropriate
index hole).
However, the greaseweasel reports no index pulse when I put a single
sided diskette in the drive. I have attempted to clean out the
sensor
for single sided diskettes to on avail.
Does any one have any ideas?
The grease weasel works perfectly when I connect SA-800 drives.
I have not yet tried installing terminating resistors in the Qume.
Thank you in advance for your help,
Mike
