Sequential circuits samplers

Hi there, well done on the floppy drive. That must be a very fine soldering
tip you have there!  There are various versions of the Teac 235 floppy
including
some with regular removable jumpers for drive select. I have one in my p2k.

Although the HD floppies work , I think that it may be a less reliable
storage medium than the correct SD types, due to the density differences.
Check on google for further info.... I believe there are potential issues
with them.

Cheers,
        Nev.


-----Original Message-----
From: Pat Swayne [mailto:me@...]
Sent: Saturday, July 19, 2003 4:08 PM
To: prophet2000@yahoogroups.com
Subject: [prophet2000] floppy drive replacement


Like many others, I had trouble with my floppy drive on my p2k, and
searched for a replacement. One site (www.ftg.co.uk) said a Teac FD-235HF
would work, and I just happened to have one of those. I tried it, and it
did not work. I emailed the guy who had suggested the drive in the first
place, he said something must have been specially modified for his
application. Then I got to thinking. The Teac drive in question is a
standard PC-type drive, which (these days) means it's hard jumperd for
"drive select 1". I figured the Prophet, being so old, must be "Apple"
wired rather than "PC" wired, meaning it requires the drive has to be
jumpered for "drive select 0". Well, this drive has no jumpers, but it did
have a small surface-mount resistor on the back at a position labeled
"DS1", and a blank place labeled "DS0". So I unsoldered the resistor from
DS1 and re-soldered it on DS0. Presto -- the drive works! I also found that
standard PC-type HD floppy disks will work in the p2k if you fold some tape
over both sides of the density select hole (the small square hole on the
opposite side from the write protect hole). So now I can read disks, save
disks, and I don't get any errors. One strange thing though -- the light on
the drive comes on and stays on unless I auto-load a disk (have the disk in
the drive when I turn the p2k on) or I put in a disk for a few seconds and
then remove it after I turn it on.
-- Pat