Compaq 100 armada 100s Manuales De Servicio

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Removal and Replacement Preliminaries
4-3
COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED
Writer: David Calvert    Saved by: The Integrity Group    Saved date: 09/26/00 2:34 PM
Part Number: 177845-002    File name: Ch04
■ 
Avoid exposing a drive to temperature extremes or to liquids.
■ 
If a drive must be mailed, do the following:  place the drive into a
bubble pack mailer or other suitable form of protective packaging;
label the package “Fragile: Handle With Care.”
 4.4  Electrostatic Damage Prevention
 Many electronic components are sensitive to electrostatic discharge
(ESD). Circuitry design and structure determine the degree of sensitivity.
Networks built into many integrated circuits provide some protection,
but in many cases the discharge contains enough power to alter device
parameters or melt silicon junctions.
 A sudden discharge of static electricity from a finger or other conductor
can destroy static-sensitive devices or microcircuitry. Often the spark is
neither felt nor heard, but damage occurs. An electronic device exposed
to electrostatic discharge may not be affected at all and can work
perfectly throughout a normal cycle. It may function normally for a
while, then degrade in the internal layers, reducing its life expectancy.
 4.5  Packaging and Transporting Precautions
 Use the following grounding precautions when packaging and
transporting equipment:
■ 
To avoid hand contact, transport products in static-safe containers
such as tubes, bags, or boxes.
■ 
Protect all electrostatic-sensitive parts and assemblies with
conductive or approved containers or packaging.
■ 
Keep electrostatic-sensitive parts in their containers until they arrive
at static-free workstations.
■ 
Place items on a grounded surface before removing them from their
container.
■ 
Always be properly grounded when touching a sensitive component
or assembly.
■ 
Place reusable electrostatic-sensitive parts from assemblies in
protective packaging or non-conductive foam.
■ 
Use transporters and conveyers made of antistatic belts and roller
bushings. Ensure that mechanized equipment used for moving
materials is wired to ground, and that proper materials were selected
to avoid static charging. When grounding is not possible, use an
ionizer to dissipate electric charges.