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Epson SD-700
⚠️ This drive is frequently packaged as an SD-880 with a SD-800 3.5“ floppy piggybacked on top. In this case, you must physically disconnect the 3.5” flex cable before using it with the Applesauce!
Specifications
| Capacity | Formatted: HD 1.2 MiB; DD 700 KiB |
|---|---|
| Unformatted: HD 1.6 MiB; DD 1.0 MiB | |
| Height | 41.5 mm |
| Width | 148 mm |
| Depth | 192 mm |
| Weight | 1.1 kg |
| Disk size | 5.25“ |
| Heads | 2 |
| Surfaces | 2 |
| Tracks/Surface | 80 |
| Track density | 96 tpi (tracks/in) |
| Dit density | HD: 9870 bpi; DD: 5922 bpi |
| Record method | MFM |
| Rotation rate | HD: 360 rpm; DD: 300 rpm |
| Shock rating | not specified |
| Vibration | not specified |
| Seek time | 3 ms |
| Settle time | 15 ms |
| Motor start time | 500 ms |
| Data transfer | HD: 500 Kib/s; DD: 300 Kib/s |
| Power | +5 V, +12 V |
| Power dissipation | not specified |
| MTBF | not specified |
| MTTR | not specified |
(Specifications come from SD800.PDF, originally downloaded as SD800.TXT at Epson.com.)
Jumper Settings
There are two jumpers that are of interest, marked in areas SS1 and SS2. SS1 determines which of the two drives will be seen as “A” drive. SS2 Jumper L controls the Logic of the 5.25” drive's motor, flipping whether low or high logic puts the drive into Double-Density mode or High-Density mode, which the documentation refers to as NORM and HIGH modes, respectively. SS2 Jumper D controls the 5.25“ motor speed when in NORM mode. This jumper comes factory-configured to be 360RPM, but Applesauce expects the lower 300RPM for DD disks and the higher 360RPM for HD disks.
| SS1 | Don't care | 5.25” Drive letter select | |
|---|---|---|---|
| SS2 | R-D | No Jumper | unknown |
| L-H | H | LOW is Norm; HIGH is High | |
| D-S | D | Speed is 300 RPM in Norm | |
| 3-2 | No Jumper | unknown | |
| 1-0 | No Jumper | unknown | |
This is a known-working configuration with Applesauce.