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" pin. --Chuck
