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Apple Tape Backup 40SC Service Source

From RetroTechCollection

The Apple Tape Backup 40SC volume of Apple's Service Source is a 29-page service document for Apple's external SCSI tape backup drive. The PDF was distilled on 23 October 1995.[1]

The symptom chart

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Apple's cures are listed in order of likelihood; if a replacement module does not cure the symptom, refit the original before trying the next.[2]

Tape Backup 40SC symptom chart (summary)[2]
Symptom Apple's cures, in order
Power light does not come on Power cord; power switch and fan; power supply; tape backup mechanism
Known-good Macintosh does not recognise the drive Switch everything off and on again in the correct order; cables and SCSI priority setting; external cables; software; mechanism; power supply
Hard drive crashes during a Restore Software; cables and SCSI priority; external cables; tape cartridge; run Macintosh Hard Disk Test; mechanism; power supply
Will not back up files Check the files are on an HFS disk; software; cables and SCSI priority; external cables; cartridge; mechanism; power supply
Tape Backup 40SC icon does not appear Software; check the Macintosh
Backup Volume will not continue Software; format the cartridge; replace the cartridge; cables and SCSI priority; external cables; mechanism; power supply
Restore Volume unsuccessful Check whether the target disk is smaller than the volume on tape; software; cables and SCSI priority; external cables; cartridge; mechanism; power supply
Cartridge will not format Try a blank, unformatted cartridge; software; cables and SCSI priority; cartridge; mechanism; external cables; power supply
Activity light flashes but the drive motor does not run Eject the cartridge, wait for the light to go out, reinsert; mechanism; power supply

Contents

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  • Troubleshooting: General; Symptom Charts/Miscellaneous (PDF pp. 3-8)
  • Take Apart: Case Top, Power Supply, Tape Backup Mechanism, Fan Frame, Fan, SCSI Device-to-Case Cable, SCSI Select Switch (PDF pp. 10-29)

What this manual does not contain

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There is no Specifications chapter, so it gives no tape format, capacity, transfer rate, supply voltages or current draw. There is no exploded view, parts list, schematic or component values, and no head-cleaning or media guidance.[1]

Pages that cite this document

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Download: Apple tape backup 40sc.pdf

References

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  1. ↑ 1.0 1.1 Apple Computer, Apple Tape Backup 40SC (Service Source), 29 pp., 1995. Hosted as File:Apple tape backup 40sc.pdf.
  2. ↑ 2.0 2.1 Apple Tape Backup 40SC Service Source, Troubleshooting: General p. 2, Symptom Charts/Miscellaneous pp. 3-7 (PDF pp. 3-8).