Section 4 Field Service Guidelines; Preventive Maintenance; Cleaning The Notebook's Exterior - NEC VERSA 6220 Service Manual

Section 4
Field Service Guidelines
This section contains preventive and corrective maintenance procedures for the NEC Versa
6220/30/60 notebook computers.
The first part of the section describes cleaning procedures and preferred handling proce-
dures for sensitive components (for example disk drives, batteries).
The second part of the section identifies all field replaceable parts with the remainder of the
section containing the removal and replacement procedures for the field replaceable parts.

PREVENTIVE MAINTENANCE

Preventive maintenance is limited to cleaning the plastic case, the keyboard, and the display
screen and cleaning the diskette drive heads as required.

Cleaning the Notebook's Exterior

Use the steps below to clean the outer surface of the system.
1. Power off the system and remove all battery packs. Unplug all cables connected
to the system.
2. Wipe the outside of the system unit, keyboard, and display with a soft, clean cloth.
Remove stains with a damp, almost dry cloth. Use liquid glass cleaner to clean the
LCD indicator panel. Apply the glass cleaner directly to the cloth and then wipe
the LCD indicator panel. Do not use solvents or strong, abrasive cleaners on any
part of the system.
Clean the keys with a damp cloth. A small, soft-bristle brush may be used to clean
3.
between the keys. Make sure to use a damp cloth (not wet) to prevent moisture
from seeping between the keyboard and the metal plate, possibly damaging the
components under the keys. If the keyboard gets wet, thoroughly dry it before re-
assembling the system unit.
NOTE
Remove the battery and disconnect the AC
adapter before performing any maintenance.
Voltage is present inside the system unit and
LCD even after the system is turned off.