Maintenance and Service Guide 4-25
Addendum 108431-001 (11-88) to
Manual No. 108033-003
Fixed Disk Drive Backup
The Fixed Disk Drive Backup selection verifies
that the system can identify the following on
selected tracks of the tape cartridge: drive type;
cartridge in place; write protect, beginning of
tape (BOT), and end of tape (EOT) sensors; drive
motion and seek circuitry; drive indexing cir-
cuitry; and drive write and read circuitry.
Fixed Disk Drive Backup Media
The Fixed Disk Drive Backup Media selection
verifies that the system can rewind the tape
cartridge to the beginning of the tape (BOT) and
the end of the tape (EOT) as well as write, read,
and compare data to all blocks and tracks of the
cartridge.
Enhanced Color Graphics
For a description of this test, see “Video Tests”
described previously.
Video Graphics Controller
For a description of this test, see “Video Tests”
described previously.
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