[ IDENTIFIED PC FLOPPY DRIVE ]
Y-E Data YD-380B 5.25-inch drive
The YD-380B is a half-height, double-sided 5.25-inch high-density drive in the YD-380 family. Its maintenance manual covers family variants; verify suffix-specific settings on the unit.
Documented specifications
| Density / capacity | 80-track, 96-TPI, double-sided HD; 1.2 MB formatted HD and PC 360 KB DD formats, subject to controller/media compatibility. |
|---|---|
| Interface | 34-pin PC/Shugart data interface and separate 4-pin +5 V/+12 V power connector. |
| Data rate / speed | 500 kbit/s HD; DD formats require the controller rate and speed supported by the selected mode. Nominal HD rotation is 360 rpm; check the manual and label for DD mode. |
| Jumpers / drive select | YD-380 family configuration provides drive-select positions and option/termination settings. Set one DS position for the PC cable convention; do not copy jumper positions from a different PCB revision. |
| Dimensions / power | Half-height 5.25-inch chassis, approximately 146 × 41 × 203 mm; +5 V/+12 V DC via 4-pin power connector. Exact current draw depends on revision and operating state. |
| PC controller compatibility | Connects to an IBM AT-compatible 765-family controller configured for a 1.2 MB 5.25-inch drive. Reading 360 KB media in an HD drive can be alignment-sensitive. |
Preservation notes
Record full model, serial/date code, PCB revision, jumper/termination state, and cable twist before installation. Use known-good media, avoid aggressive head cleaning, and preserve a verified disk image before attempting any adjustment.
Manuals & archive sources
- Y-E Data YD-380 maintenance manual — Internet ArchiveScanned service manual for the YD-380 drive family.
- Y-E Data YD-380 maintenance manual — archived PDFDirect scan of the maintenance manual; match its jumper information to the YD-380B board.