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echo: cis.os9.6809.coco
to: David Betz 76704,47 (X)
from: Pete Lyall 76703,4230
date: 1990-10-19 17:24:26
subject: #7559-#FD501 cable

#: 7560 S10/OS9/6809 (CoCo)
    19-Oct-90  17:24:26
Sb: #7559-#FD501 cable
Fm: Pete Lyall 76703,4230
To: David Betz 76704,47 (X)

David -

Tandy, in their questionable wisdom, used special cables. There's a workaraound
though....

The Tandy drives have all the select lines set to ON. Then, they remove all but
1 drive select pin from the edge connector at each point on the ribbon cable.
This way, the drive # is a function of where it is placed on the ribbon cable.
Example: the drive 0 connector (on the Tandy cable) would have pin 10 hooked
up, but not pin 12, 14, or (32 or 34?)...

The workaround is get a cable with all 34 pins connected, and just disable the
jumpers on the disk drive for drive selects that aren't wanted.

Pete

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