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When I try to read the directory of any disk, it just clicks in rapid succession, then the green light repeatedly flashes. No directory is displayed, nor can I load anything. In C64 mode, when trying to LOAD "$", I get "file not found" and the green light flashes away.
Sorry, forgot the site, http://www.floodgap.com/retrobits/ckb/ckb.cgi?mode=all
OPEN 15,8,15,"I0:":CLOSE 15
Another possibility is that the 1571 has the old DOS ROM. If so, the old ROM will have a hard time figuring out 1541 single-sided mode and 1571 double-sided mode. It will become confused and give confused/corrupted directories. To correct the problem, you'd have to put in a newer, upgrade ROM or JiffyDOS.
Just seems strange to me that the drive would have a ROM that was incompatible with it's native system/disks...
There were at least one or two "home remedy" software products on the market during the heyday of the 1541 drive and Commodore 64 computer that could be used to re-align the drive yourself and save a costly trip to a repair center and down time. They generally consisted of a software program and a calibration disk. What the user would do is remove the drive from its case and then loosen the screws holding the stepper motor that moved the head. Then with the calibration disk in the drive gently turn the stepper motor back and forth until the program showed a good alignment. The screws were then tightened and the drive put back into its case. The real problem actually was that the sprocket which moved the head would slip on the stepper motor shaft after repeated hammering and this would put the drive gradually out of alignment.
Does anybody know anything about these "calibration disks"--I'm wondering what they are exactly and where I might get one, or if I could use any 5.25" disk and the software--speaking of which, does anyone know where I could find such software in .D64 format? I'm hoping this might help me resurrect my old 1541 drive; probably won't help much in the case of my 1571, but I figure I might as well work on both drives now since the tool set is coming out invariably.
I've read that 1541 drives are notorius for going out of alignment, mainly due to no track zero detection. Apparently there was some "homebrew" remedy including software with some sort of calibration disk.
Just a shame that the drive can't be fix. I hate to throw them out too.