S-50_S-550_ZONE



3.5 ICON

Floppy Disk Drive DIY's And Reference Material
For Roland S-50, S-550, S-330, S-760 & W-30


Most Roland sampler owners these days are replacing their old unreliable or broken Floppy Disk Drives (FDD's) with newer technology ‑ the GOTEK USB/FDD Emulator. For those of us who are still living way back in the 1980's, we try to maintain our FDD's and keep the samplers running by using the older technology. Assembled here is a collection of my DIY experiences and some pointers for replacing a broken FDD with the after-market, inexpensive models. Some of these modifications are as simple as moving or adding jumper blocks on the back while others require a steady hand at soldering wires and microscopic SMD/SMT components. Have at it!!!


S‑50 and S‑550

     Toshiba P/N: FDD 4261A0K (Original Factory Installed FDD)
     Toshiba P/N: FDD 4261G0K (Original ‑ Late Production Runs)
               S-50 / S-550 DOWNLOAD Jumper Settings

     Chinon P/N: FZ-357 (After‑Market / Simply Move Some Jumpers)
               S-50 / S-550 DOWNLOAD Jumper Settings   S-50_S-550_ZONE

     Teac P/N: FD-235HF-C429 (After‑Market / Simply Move Some Jumpers)
               S-50 / S-550 DOWNLOAD Jumper Settings   S-50_S-550_ZONE

     Teac P/N: FD-235HF-6527 (After‑Market / Simply Move Some Jumpers)
               S-50 / S-550 DOWNLOAD Jumper Settings   S-50_S-550_ZONE

     Sony P/N: MPF920-Z/121 (After‑Market / This DIY Requires Soldering)
               S-50 / S-550 DOWNLOAD DIY Instructions and Images   S-50_S-550_ZONE

     Panasonic P/N: JU256A-488PC (After‑Market / This DIY Requires Soldering)
               S-50 / S-550 DOWNLOAD DIY Instructions and Images   S-50_S-550_ZONE

     Alps P/N: DF354H (121G) (After‑Market / This DIY Requires Soldering)
               S-50 / S-550 DOWNLOAD DIY Instructions and Images   S-50_S-550_ZONE

     Mitsumi P/N: D359M3 (After‑Market / This DIY Requires Soldering)
               S-50 / S-550 DOWNLOAD DIY Instructions and Images   S-50_S-550_ZONE

     Mitsubishi P/N: MF355F‑3490UC (Rev. C) (After‑Market / This DIY Requires Soldering)
               S-50 / S-550 DOWNLOAD DIY Instructions and Images   S-50_S-550_ZONE  (Note: This model has a WHITE bezel)

     Mitsubishi P/N: MF355F‑3490UC (Rev. E) (After‑Market / This DIY Requires Soldering)
               S-50 / S-550 DOWNLOAD DIY Instructions and Images   S-50_S-550_ZONE  (Note: This model has a WHITE bezel)

     Samsung P/N: SFD-321B/LE and P/N: SFD-321J/ADSF (After‑Market / This DIY Requires Soldering)
               S-50 / S-550 DOWNLOAD DIY Instructions and Images   *VERIFIED BY OTHERS*  (*.ZIP Download)
                    NOTE: I was unable to get a similar Samsung model to work - P/N: SFD-321B/LTGNQ



S‑330

     Toshiba P/N: ND-352S-A (Original Factory Installed FDD)
               S-50 / S-550 DOWNLOAD Jumpers For The ND-352 Series (PDF)

     Teac P/N: FD-235HF-A527(Original ‑ Late Production Runs)
               S-50 / S-550 DOWNLOAD Jumpers For The FD-235HF Series (PDF)


W‑30

     Chinon P/N: FX‑354 (Original Factory Installed FDD)

     Chinon P/N: FZ-357 (After‑Market / Simply Move Some Jumpers)
               S-50 / S-550 DOWNLOAD Jumper Settings  S-50_S-550_ZONE

     Teac P/N: FD-235HF-C429 (After‑Market / Simply Move Some Jumpers)
               S-50 / S-550 DOWNLOAD Jumper Settings   S-50_S-550_ZONE

     Teac P/N: FD‑235HF‑C529 (After‑Market / Simply Move Some Jumpers)
               S-50 / S-550 DOWNLOAD Jumper Settings  S-50_S-550_ZONE

     Teac P/N: FD-235HF-6527 (After‑Market / Simply Move Some Jumpers)
               S-50 / S-550 DOWNLOAD Jumper Settings  S-50_S-550_ZONE

     Teac P/N: FD‑235HF‑C929 (After‑Market / Simply Move Some Jumpers)
               S-50 / S-550 DOWNLOAD Jumpers Settings  S-50_S-550_ZONE

     NEC P/N: FD1231T (After‑Market / This DIY Requires Soldering)
               S-50 / S-550 DOWNLOAD DIY Instructions and Images  S-50_S-550_ZONE

     Sony P/N: MPF920-Z/121 (After‑Market / This DIY Requires Soldering)
               S-50 / S-550 DOWNLOAD DIY Instructions and Images  S-50_S-550_ZONE

     Panasonic P/N: JU256A-488PC (After‑Market / This DIY Requires Soldering)
               S-50 / S-550 DOWNLOAD DIY Instructions and Images  S-50_S-550_ZONE

     Alps P/N: DF354H (121G) (After‑Market / This DIY Requires Soldering)
               S-50 / S-550 DOWNLOAD DIY Instructions and Images  S-50_S-550_ZONE

     Mitsumi P/N: D359M3 (After‑Market / This DIY Requires Soldering)
               S-50 / S-550 DOWNLOAD DIY Instructions and Images   S-50_S-550_ZONE

     Mitsubishi P/N: MF355F‑3490UC (Rev. C) (After‑Market / This DIY Requires Soldering)
               S-50 / S-550 DOWNLOAD DIY Instructions and Images  S-50_S-550_ZONE  (Note: This model has a WHITE bezel)

     Mitsubishi P/N: MF355F‑3490UC (Rev. E) (After‑Market / This DIY Requires Soldering)
               S-50 / S-550 DOWNLOAD DIY Instructions and Images   S-50_S-550_ZONE  (Note: This model has a WHITE bezel)


S‑760

     Chinon P/N: FZ-357 (Original Factory Installed FDD)
               S-50 / S-550 DOWNLOAD FZ‑357 Jumpers For The S‑760



Additional Notes
  • Through trial and error I have noticed that even though a FDD model number prefix is the same, not all of the PBC's are the same. For example, a Teac FD‑235HF‑C529 works great with the W‑30 but a Teac FD‑235HF‑A219 does not. FDD models with movable jumper blocks installed at the PCB's back area usually make the best candidates for a replacement drive. If you are trying to make a FDD work which is not shown on the list here, the best advice I can give you is to try and set the jumpers, soldered wires or PCB soldered strap‑blocks to the following:
                       Function    Usually Silkscreened As    Tips
         ----------------------    -----------------------    ---------------------------------------------
                   READY OUTPUT    RDY                        Rewire to Pin-34 of the FDD connector
                  DS/DD DENSITY    HA or LO                   Always use DS/DD for the S-50, S-550 or W-30
                 DRIVE SELECT 0    DS0 or D0                  DS0 = Sampler or Synth; DS1 = Computer
             DISK CHANGE OUTPUT    DC                         Rewire to Pin-2 of the FDD connector
         MOTOR ON FROM MOTOR ON    MO or MM                   MOTOR ON is not present on all FDD's
    MOTOR_FACEPLATE
  • You may be tempted to look under the hood of a FDD but... don't unscrew the motor assembly for any reason!!! As soon as you take these screws out, the disk drive head will be out of alignment and will not load a disk until you spend a LOT of time realigning everything. This is the easiest way to turn your FDD into a brick!





  • If you know of any other FDD's not listed here that work with the S‑Series and W‑30, please send me some detailed info and I will add it to the list
              S-Series / W-30 FDD eMail: info@super-jx.com










S50/S550 ZONE     S-50_S-550_ZONE     S-50_S-550_ZONE     S-50_S-550_ZONE     S-50_S-550_ZONE



Other Synthesizer Homepages I Maintain

PROMO WEBSITES     PROMO WEBSITES     PROMO WEBSITES

PROMO WEBSITES     PROMO WEBSITES     The Andromeda Strain - Best Movie Ever!

PROMO WEBSITES     PROMO WEBSITES     PROMO WEBSITES

PROMO WEBSITES     PROMO WEBSITES



Safety Precautions and Disclaimer
Modifications made to any factory stock equipment will always pose an element of risk. Sometimes mistakes are made which are irreversible. Improper soldering and handling of electricity can cause serious injury and damage the synthesizer. Use caution when handling static sensitive devices and the PCB. Make sure you are properly grounded, working on a static-free workbench or table and wearing eye protection during any soldering tasks. The author is not responsible for any damage or injury resulting from this DIY info. Use this DIY information at your own risk. And, I can't stress enough, the importance of wearing eye protection while soldering. That stuff flies everywhere sometimes!



The Information On This Page Is Current As Of

Barcode / Domain Image