TRS-80 Model 4 help requested

From: Tony Duell <ard_at_p850ug1.demon.co.uk>
Date: Thu Feb 27 18:27:00 2003

> Aparently, the Drive 0: is bad. Replacing it with the 1: or an

Does the spindle motor run on this drive when you try to boot from it?
Does the LED come on?

> IBM-branded Tandon drive from an IBM 5150 PC, it seems to try to boot from

What have you done about the termination resistor pack (the 'odd coloured
IC' on the drive logic board)? The machine will not do the right things
if the last drive on the cable is not terminated.

> > Mostly. It is standard MFM encoding (well, the TRS-80 can do FM (single
> > density) too, but the M3 and M4 at least expect the boot sector to be
> > double desnisty, and the standard OSes use double density (MFM) encoding
> > for the entire disk.
>
> I would like to try to make an image from the disks I have, is there a
> program that works under Linux with a standard floppy disk controller to
> read disks and spit out .dsk files?

I've not written one yet (although it would not be hard to do). However,
I belevie xtrs can do this (BACKUP from a physical disk to an emulated
one). Since I don't run X, I can't be sure, though.

-tony
Received on Thu Feb 27 2003 - 18:27:00 GMT