Ok,
I decided to start own thread on this issue after all, though this was mentioned in the other
thread - since I found out that the issue is not the same.
The drive is Panasonic JU-475-3A11.
And when the pc is started, the drive gives normal 'creek' sound as the stepper motor
moves slightly. Green led goes on and goes off after a short while, as I think is should.
The spindle runs a few rotations.
When I try to format a disc, the green led comes on, but the spindle will not run at all.
pc gives error track 0 bad - disk unusable. But that would be expected, since the spindle will not run,
I guess. It's not about the disc, but about the drive not spinning spindle.
I have attached picture of my jumper settings. I saw on line a pic of the correct jumper settings
and I added two white jumpers to the drive to make it according to that suggested spec. But
no difference, if I take the white jumpers off or let them be there.
On a side note, when I give "format a:" -command, the pc tries to format the disc as 360kb
floppy. If I try to format with a command "format a:/F:1.2" it refuses to do so. Pc thinks that
this is a 360kb drive, when it actually is 1.2 meg drive.
Obviously, I have configured the drive in bios as 1.2meg drive.
Also, I could force one of the jumpers to make this 1meg drive (jumper settings say fixed
density or dual density). Tried both ways, but no change. Also tried to make the drive
1 or 2 and change the cable accordingly, but that won't help either.
Perhaps it just is defective. But if anyone has had similar problem of spindle not moving, while
drive is being accessed and if had luck with repairing one with similar symptoms, please
give a hint on where to look next.
floppy.jpg
Bookmarks