Quote:
Originally Posted by pipper
It’s possible that the HD switch (which detects the HD hole in the floppy) is not working. For HD drives the switch is not engaged and thus should be closed. You can measure continuity at the switch. If there’s no continuity when there’s no drive inserted, you found the culprit.
I once had a FZ-357A that would detect HD floppies, send the correct DriveID to the Aniga, but eventually would not slow down to 150rpm. End of story: pin1 on the cable was broken. It needs to be grounded for the drive to work in HD mode.
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As an internal unit it works correctly, both high and low. It must be a signal that is missing from the outer box itself. I'm going to look at it with other external boxes.