[Coco] FD-501 Service Manual

[L. Curtis Boyle]

This is true - the original 35 track full height TEC drives only handled 30 and 20 ms stepping rates properly, and didn’t work properly with 12 and 6 ms, from what I recall.

L. Curtis Boyle
curtisboyle at sasktel.net

TRS-80 Color Computer Games website
http://www.lcurtisboyle.com/nitros9/coco_game_list.html



> On Feb 5, 2019, at 9:11 AM, rietveld rietveld <rietveldh at hotmail.com> wrote:
> 
> Check your step rate.    The older disks won't work as reliably with the newer drives if they are using a fast step rate 6ms
>