Apple PC 5.25 Drive Service Source
The Apple PC 5.25 Drive volume of Apple's Service Source is a 15-page service manual for the Apple PC 5.25 Drive, Apple's external 360K 5.25-inch floppy drive for reading PC disks. The PDF was distilled on 14 December 1995.[1]
Specifications as printed
[edit | edit source]| Item | Value |
|---|---|
| Average seek time | 19 ms |
| Transfer rate | 250 kbit/s |
| Rotational speed | 300 rpm |
| Average startup time | 500 ms |
| Formatted capacity | 360K per disk (printed "360 Kbit"); 2 recording surfaces, 40 tracks per surface, 48 tracks per inch |
| +12 V | ±10%; maximum 0.6 A, peak 0.9 A; typical 0.36 A |
| +5 V | ±5%; maximum 0.65 A; typical 0.5 A |
| Operating temperature | 10-40 °C (50-104 °F) |
| Relative humidity | 20-80%, non-condensing |
| Maximum altitude | 3,048 m (10,000 ft) |
| Size | 7.2 cm H × 16.2 cm W × 20.7 cm D |
| Weight | 2.17 kg (4.78 lb) |
Take-apart
[edit | edit source]Apple's procedure: turn the drive over, prise off the disk insertion lever and remove the six screws; lift the back of the top cover and pull it forward to free the drive assembly. Two screws hold the shield cover. Remove the cable ground-strap screw and unplug the bus cable from J1 and the power cable from J2; four screws then release the mechanism from the shield case.[3]
Contents
[edit | edit source]- Specifications: Performance, Capacity, Environmental, Electrical, Physical (PDF pp. 3-7)
- Exploded View: top cover, shield cover and cable, mechanical assembly (PDF p. 9)
- Take Apart: Top Cover, Shield Cover and Cable, Mechanical Assembly (PDF pp. 11-15)
What this manual does not contain
[edit | edit source]There is no Troubleshooting chapter or symptom chart, no Adjustments chapter (no speed or head-alignment procedure), and no parts list, schematic or component values.[1]
Pages that cite this document
[edit | edit source]
Download: Apple pc 5.25 drive.pdf
References
[edit | edit source]- ↑ 1.0 1.1 Apple Computer, Apple PC 5.25 Drive (Service Source), 15 pp., 1995. Hosted as File:Apple pc 5.25 drive.pdf.
- ↑ Apple PC 5.25 Drive Service Source, Specifications pp. 1-5 (PDF pp. 3-7).
- ↑ Apple PC 5.25 Drive Service Source, Take Apart pp. 1-5 (PDF pp. 11-15).