Zombie article alert!
(from coco3.com circa 9/2009)
Hey everyone,
I started this list on CaptCPU’s forum ages ago. Then it was hacked and lost forever, so I figured I restart it here since I’ve found a some of my already tested units. As I find more of them, I’ll add to this article. While working on my repack project, I had tested numerous 3.5′s for CoCo use and here’s what I found:
***this version is actually from Roger Taylor’s old coco3.com website***
CoCo use and here’s what I found:
This WEBSITE is a good place to look up floppy drives and see what type they are (the mfarris site is now defunct, but exists on the wayback machine). There’s no jumper info, but, if you have the mfg and model number of the drive, you can look it up here and find out what density it is.
Sony MPF920-F (1.44MB from an HP) – has a jumper to select D0 or D1 (unit tested and worked as both)
Panasonic JU-257-133P (1.44MB) – has a four position switch for use as D0-D3 (Tested and worked as all)
Epson SMD-300 (720k) – The picture below is for the SMD-300 and 1.44MB SMD-340:
Chinon -FZ-357 – This is the best I could find on this drive and it leaves a lot to b desired…):
As I dig out more FDD’s I’ll check them and post what info I can find on them.
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1/18/10 – Update
I did some digging and found some more of my floppy drives to test. Here’s what I got:
Epson SMD-1340 – 3.5″ 1.44 MB FDD – has a place between the ribbon connector and power connector to solder jumpers for setting drive numbers. Worked as Drive 0 and 1.
Mitsumi/Newtronics D359T3 – 3.5″ 1.44 MB FDD – Has a block of jumpers between the drive motor and the ribbon connector to change several drive settings including drive numbers. Worked for Drive 0, 1 & 2.
I have two variants of the TEAC FD-235HF:
First – 6240 – 3.5″ 1.44MB FDD – Single jumper between the motor and power connector to set drive 0 or 1 – works as either.
Second – 3240 – 3.5″ 1.44MB FDD – a gaggle of jumpers between the motor and power connector for setting numerous drive features, including drives 0 – 3; worked as all.
Last, Citizen OSDA-39E-U – 3.5″ 1.44MB FDD – has a toggle switch between the motor and ribbon cable for set Drive 0 or 1; works as either.
And finally, a nice little document I stumbled on while Googling the jumpers settings for one of these drives. It looks like a chapter out of a book, but, it has many popular 3.5″ drives in it (including some I’ve tested), and it has the jumper settings for these drives to help us set proper DS selections for use with our beloved CoCo’s.
1/15/2011 Update
Found some more 3.5″ floppies and have tested them for use with our favorite 8 bitter:
JU-257A605P
A sibling of the Panasonic drive above; the – On the bottom side of the drive is a small window in the PC board allowing access to SW3. SW3 allows selection of DS0/DS1.
NEC Corp. FD1231H
Has an area on the backside of the drive, between the power and fdc connector where a jumper can be soldered in allowing drive selection of DS0/DS1.
Alps Electric Co. DF334N025A
Looking at the top of the drive, there is a window above the power connector allowing access to a number of jumpers
I HAVE NOT TESTED THIS DRIVE!!!
My particular version of this drive will not work, so ymmv…
Y.E. Data YD-701B-6031B
Just to the left of the power connector is a plethora of jumpers allowing selection of DS0 – DS3.