The Underlord
Member
I'm having a little trouble with a Mitsubishi MF355C-88UF 3.5" floppy drive. I consider it quite an interesting design, given that I hadn't done much digging inside of computers until fairly recently.
Anyway, the trouble I'm having is that the read/write head doesn't want to move when it's time to read or write something from a floppy. The head does move during what I would consider a start-up test when the machine is turned on.
At first I simply thought the stepper motor was bad, but after shipping the drive halfway across the country to have it fixed, it worked fine. And it worked when tested upon its return, but after some time of sitting it again refused to operate when I wanted to use a floppy.
The question is: would the cause of this be a failure in the drive somewhere, or could it be a failure of the controller?
I'll admit that I don't know a whole lot about the controller, other than it is on a 16-Bit ISA expansion slot and controls both the floppy drives and the hard drive.
I suppose I could produce a picture or two if anyone thinks it might help.
(I know someone out there just wants to look for the sake of looking )
Anyway, the trouble I'm having is that the read/write head doesn't want to move when it's time to read or write something from a floppy. The head does move during what I would consider a start-up test when the machine is turned on.
At first I simply thought the stepper motor was bad, but after shipping the drive halfway across the country to have it fixed, it worked fine. And it worked when tested upon its return, but after some time of sitting it again refused to operate when I wanted to use a floppy.
The question is: would the cause of this be a failure in the drive somewhere, or could it be a failure of the controller?
I'll admit that I don't know a whole lot about the controller, other than it is on a 16-Bit ISA expansion slot and controls both the floppy drives and the hard drive.
I suppose I could produce a picture or two if anyone thinks it might help.
(I know someone out there just wants to look for the sake of looking )