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PLR ELECTRONICS. We specialize in embroidery machine circuit board repair and upgrades.

USB Floppy Drive Compatibility Chart




The following information is to help you configure your dipswitch settings on the USB Floppy device sold by PLR Electronics.



These dipswitches change the behavior of the USB Floppy to match actual floppy disk drive behavior. Your machine may be satisfied with a partial match, or may want an exact match.

There are eight dipswitches on the usual USB Floppy model. Only dipswitch settings 1-4 are provided here, the others can be figured out more easily. Your floppy disk drive will originally be set for DRIVE 0, or DRIVE 1 and the jumper may be visible. Dipswitch 5 must be switched OFF for DRIVE 1 (standard computer), or switched on for DRIVE 0 (not as popular).

Dipswitch 7 and 8 are usually 720kb mode when both OFF, and 1.44mb mode when both ON. If your system is not capable of 1.44mb mode (high density disks) then leave them OFF. It is safe to try 720kb first, to help first-time installation. Leave dipswitch 6 as-is. If 720kb or 1.44mb is mentioned in the chart, then you must choose which one you are using first before changing dipswitches 1-4.

Note that we cannot promise these settings will work for your system, as any solder tech can reconfigure settings and they may have done so at the manufacturer that purchased these floppy drives for use in their product. We cannot make a master list of machines and dipswitches until we have customers from every segment of the market give us feedback after their success. We do ask and appreciate any help, by emailing dipswitch combinations to us at sales@plrelectronics.com. You may also choose to post in our forums by clicking on the top menu.

The chart is not in alphabetical order. If you don't see your model listed, then try a similar model. The Sony MPF 920 and the TEAC 235 simple is a good place to start.





Floppy Disk Drive replacement chart



Floppy Drive Description and Dipswitches
Sony MPF-920 Very popular drive, used in standard computers.
Usual setting is DC on 34. Others not used.
  • (4 3 2 1) OFF OFF ON ON
Teac FD-235HF-B291
Teac FD-235HG-C629
Teac FD-235HF-3201
Simple version of the Teac 235. Usually no user jumpers.
Usual setting is DC on 34. Others not used.
  • (4 3 2 1) OFF OFF ON ON
Teac FD-235HG-5417
Teac FD-235HF-6573
Teac FD-235HF-A579
Highly configurable version of the Teac 235.
Large jumper system, 15-20 jumper pins.
DC, RDY, and HO can be moved around or not used. 5 volt power may run thru 34 pin data cable.


  • DC on 34, others ignored.
    (4 3 2 1) OFF OFF ON ON

  • DC on 34, HO on 2, 1.44mb.
    (4 3 2 1) OFF OFF ON ON

  • DC on 34, HO on 2, 720kb.
    (4 3 2 1) OFF ON OFF OFF

  • RDY on 34, others ignored.
    (4 3 2 1) OFF ON ON OFF

  • RDY on 34, HO on 2, 1.44mb.
    (4 3 2 1) OFF ON ON OFF

  • RDY on 34, HO on 2, 720kb.
    (4 3 2 1) OFF ON ON ON

  • RDY on 34, DC on 2, HO on 4, 1.44mb
    (4 3 2 1) OFF ON OFF ON

  • RDY on 34, DC on 2, HO on 4, 720kb
    (4 3 2 1) ON ON OFF ON
Teac FD-235HF-C529
Teac FD-235HF-C929
Moderately configurable version of the Teac 235.
There are 12 jumper pins labeled A-F.
Below is the jumper chart:


The default setting per chart: (with Dipswitch 5 OFF):
  • (4 3 2 1) OFF OFF ON ON
See other TEAC charts for more dipswitch settings.
ALPS DF334-H015A
Configured by factory.
Usual setting is DC on 34. Pin 2 is output high.
  • (4 3 2 1) OFF OFF ON ON
Techmedia TFD-310-C Standard IBM compatible drive.
Usual setting is DC on 34. Others not used.
  • (4 3 2 1) OFF OFF ON ON
Mitsumi D353M3D Configured by factory.
We have seen the following settings.
Note that HO2 is inverted from the Teac.
  • DC on 34, pin 2 always high.
    (4 3 2 1) OFF OFF ON ON

  • DC on 34, HO on 2, 1.44mb.
    (4 3 2 1) OFF ON OFF OFF

  • DC on 34, HO on 2, 720kb.
    (4 3 2 1) OFF OFF ON ON
Mitsumi D359T5 Configured by factory.
  • DC on 34, pin 2 always high.
    (4 3 2 1) OFF OFF ON ON
Mitsumi D359T6 Configured by factory.
  • RDY on 34, pin 2 always high.
    (4 3 2 1) OFF ON ON OFF
Mitsumi D359T3 Configurable jumper system.
Please see the TEAC 235 description.
YE-DATA
YD-702D-6539D
Slightly configurable jumper system.
Usual settings are RDY on 34, and DC on 2.
See the TEAC 235 for more jumpers.
  • RDY on 34, DC on 2, not connected on 4
    (4 3 2 1) OFF ON OFF ON
YE-DATA
YD-686C-1506C
Configured by factory.
  • RDY on 34, DC on 2, high on 4
    (4 3 2 1) OFF ON OFF ON
Panasonic
JU-257-A135P
Slighly configurable system.
  • DC on 34, others ignored.
    (4 3 2 1) OFF OFF ON ON

  • RDY on 34, others ignored.
    (4 3 2 1) OFF ON ON OFF

NEC FD1231-T Configured by factory.
  • DC on 34, pin 2 always high.
    (4 3 2 1) OFF OFF ON ON







Links to our other USB Floppy pages are provided below.


For the technical page click here
For the sales page click here
For the step-by-step guide click here
To help identify your drive click here
For other manuals click here











(C) 2009-2010 PLR Electronics
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