1581 Alignment?

[zeke1312]

When I attempt to read PC created 3.5" diskettes on my C= when using LRR, I get a read or crc header error. One file on one of the disks does load via LRR but very seldom. Loading a 720k disk  to the system directly loads OK and programs run. I suspect an alignment issue between the PC 3.5" and the 1581.

Any ideas? Any program tests that can be run? 1581 alignment disk programs? Head tweeking?

[wte]

Hmm, I don't understand the meaning of

Loading a 720k disk  to the system directly loads OK and programs run.

but to read a PC Disk on a 1581 can be troublesome.

I hope you followed the following rules:
1. Use always (and only!) DD-Disks - HDs won't work!
2. Format the disk on a 1581 (as PC 720k)

On my 1581 this is all I have to do to get working disks!

WTE