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6
Field Service
6.1
Introduction
This section contains preventive and corrective maintenance procedures for
the Extensa 51x Series Notebook Computers. The first part of the section
describes the computer cleaning procedures and preferred handling
procedures for sensitive components (e.g. disk drives, batteries).
The second part of the section identifies all field-replaceable parts; the
remainder of the section contains removal and replacement procedures for
the field-replaceable parts.
6.2
Preventive Maintenance
Preventive maintenance is limited to cleaning the plastic case, the interior of
the notebook including the keyboard, touchpad and the LCD screen.
6.2.1
Cleaning the Computer
When it is necessary to clean the plastic case and keyboard, use a soft,
lint-free cloth, slightly dampened with a mild detergent solution or use the
contents of any commercially available computer cleaning kit.
c
Caution: Never use alcohol, petroleum-based solvents, or harsh deter-
gents to clean your computer. Also never spray any liquids directly on
the computer case, keyboard, or screen. If the liquid-crystal display
(LCD) screen has become smeared or dusty, clean the screen by first ap-
plying a mild glass cleaner to a soft, clean, lint-free cloth, and gently
wipe the glass. Never apply liquids directly on the screen surface.
c
Caution: Do not use paper towels to clean the display screen. Paper can
scratch the display screen matte.
Field Service
6-1