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5.1
5.2
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SECTION 5.
MAINTENANCE
Maintenance Precautions
Preventive maintenance is not required.
There are no
adjustments, either to the HDA or on the printed circuit
board.
DO NOT open the HDA or attempt to remove the labels, some of
which are also seals.
Do not lift the drive by its faceplate or printed circuit
board.
Always handle the drive by its shock mount brackets.
Do not operate the drive without its shock mount brackets.
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Avoid harsh shocks to the drive at any time.
Always set it
down carefully.
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Do not move the drive for 30 seconds after power has been
removed.
This time is required for the AIRLOCK to lock the
headstack assembly in the landing zone.
Level 1 Maintenance
Replacement of the entire drive.
Replacement of plug-in EPROM on printed circuit board (PCB).
CAUTION
Do not exchange different EPROMs without
approval from Quantum.
The wrong EPROM may
cause user data to be lost, or servo tracks
to be written over and destroyed.
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Exchange of PCB.
See section 5.5 for information on
isolating the problem to the HDA or the PCB.
Note that
Models Q250 and Q280, and drives with and without DisCache
require different EPROMs, and that drives with DisCache
require a PCB equipped with 64 Kbytes of RAM (U16, U17,
and U18).
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Replacement of shock mounts, brackets, and faceplate, as
listed in SECTION 6.
Besides the replacement parts, only
common hand tools are required.
5-1
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