Need manual for a floppy drive...

Chuck Guzis cclist at
Sun Jan 29 13:23:01 CST 2017

On 01/29/2017 08:28 AM, geneb wrote:
> I've got a Panasonic JU-455-5 AAG (5.25, 360K) that I'd like to use
> in a Kaypro 4.  I've worked out the configuration of the drive based
> on a snippet of info on the net that had some jumper settings, but I
> can't get the activity light to operate.  I've set the configuration
> to use the light when either motor on is detected, or the drive
> select, but neither seem to work.  I figure a "real" manual on the
> drive would help.
> Note that the drive seems to operate without issue other than the
> drive light.  Boots, etc.

In addition to what Fred mentioned, there are some drives that employ
the "in Use" line to allow the host to illuminate the drive.  I've got a
couple of YE Data drives that behave in this manner.  On 8" drives, this
corresponds to "Head Load".  It's pin 4 on the interface and is
active-low.  You could probably tie it to the appropriate "drive select"


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