Apple Tape Backup 40sc Service Manual
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Service Source
Tape Backup 40SC
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Troubleshooting
Tape Backup 40SC
Troubleshooting General/ - 2
General
The Symptom Charts included in this chapter will help you
diagnose specific symptoms related to your product. Because cures
are listed on the charts in the order of most likely solution, try
the first cure first. Verify whether or not the product continues to
exhibit the symptom. If the symptom persists, try the next cure.
(Note: If you have replaced a module, reinstall the original module
before you proceed to the next cure.)
If you are not sure what the problem is, or if the Symptom Charts
do not resolve the problem, refer to the Flowchart for the product
family.
For additional assistance, contact Apple Technical Support.
Troubleshooting Symptom Charts/Miscellaneous - 3
Symptom Charts
Miscellaneous
Power light does not
come on
Known-good
Macintosh does not
recognize tape
backup device
1 Verify that AC power cord is connected.
2 Verify that power is switched on and fan operates.
3 Replace power supply.
4 Replace tape backup mechanism.
1 Switch off all equipment. Switch on all equipment in correct
order.
2 Verify all cable connections and priority setting.
3 Replace external cables.
4 Replace software.
5 Replace tape backup mechanism.
6 Replace power supply.
Troubleshooting Symptom Charts/Miscellaneous
(Continued)
- 4
Hard drive crashes
during Restore
operation
Won’t back up files
onto tape cartridge
Miscellaneous
1 Replace software.
2 Verify all cable connections and priority setting.
3 Replace external cables.
4 Replace tape backup cartridge.
5 Run Macintosh Hard Disk Test diagnostic.
6 Replace tape backup mechanism.
7 Replace power supply.
1 Verify that files are from an HFS disk or hard drive.
2 Replace software.
3 Verify all cable connections and priority setting.
4 Replace external cables.
5 Replace tape backup cartridge.
6 Replace tape backup mechanism.
7 Replace power supply.
(Continued)
Troubleshooting Symptom Charts/Miscellaneous
(Continued)
- 5
Tape Backup 40SC
icon doesn’t appear
on desktop
Backup Volume won’t
continue
Miscellaneous
1 Replace software.
2 Verify that Macintosh system is good.
1 Replace software.
2 Format tape cartridge.
3 Replace tape cartridge.
4 Verify all cable connections and priority setting.
5 Replace external cables.
6 Replace tape backup mechanism.
7 Replace power supply.
(Continued)
Troubleshooting Symptom Charts/Miscellaneous
(Continued)
- 6
Restore Volume is
unsuccessful
Tape cartridge won’t
format
Miscellaneous
1 Find out if blank disk capacity is smaller than volume
originally copied to tape cartridge.
2 Replace software.
3 Verify all cable connections and priority setting.
4 Replace external cables.
5 Replace tape cartridge.
6 Replace tape backup mechanism.
7 Replace power supply.
1 Try to format a blank, unformatted tape cartridge.
2 Replace software.
3 Verify all cable connections and priority setting.
4 Replace tape cartridge.
5 Replace tape backup mechanism.
6 Replace external cables.
7 Replace power supply.
(Continued)
Troubleshooting Symptom Charts/Miscellaneous
(Continued)
- 7
Activity light
flashes, but drive
motor does not
operate
Miscellaneous
1 Eject tape cartridge, wait for activity light to go off, and
insert tape cartridge.
2 Replace tape backup mechanism.
3 Replace power supply.
(Continued)
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T ak e Apart
Tape Backup 40SC
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