System Cleaning; Keyboard Cleaning; Mouse Cleaning - NEC Direction SP E-Series Reference Manual

System Cleaning

Use the following procedure for cleaning the system.
1. Power off the system and unplug all power cables.
2. Periodically wipe the outside of the system, keyboard, mouse, and monitor
with a soft, clean cloth. Remove stains with a mild detergent. Do not use
solvents or strong, abrasive cleaners on any part of the system.
3. Clean the monitor screen with a commercial monitor screen cleaning kit. Or
use a glass cleaner, then wipe with a clean lint-free cloth.
4. Local distributors and dealers may sell diskette drive head cleaning kits.
These kits contain special diskettes and cleaning solution. Do not use the
abrasive head cleaning kits (kits without cleaning solution).
Insert the diskette immediately after powering on the system, before the disk
bootup. Allow the diskette drive heads to clean for about 30 seconds.

Keyboard Cleaning

As necessary, inspect and clean the inside of the keyboard as follows.
1. Remove the eight screws holding the keyboard enclosure together.
Note:
a whole-unit, field-replaceable assembly. Therefore,
disassembly of the keyboard is necessary only when
cleaning the inside.
2. Separate the two halves of the enclosure. Clean the enclosure and keys with
a damp cloth. A small, soft-bristle brush may be used to clean between the
keys. Do not wet or dampen the keyboard's printed circuit board (PCB). If
the PCB accidentally gets wet, thoroughly dry it before reattaching the
keyboard to the system unit.

Mouse Cleaning

Under normal conditions, the mouse has a self-cleaning mechanism that
prevents a buildup of dust or lint around the mouse ball and tracking
mechanism. Periodically, however, the mouse ball must be cleaned. Use the
following procedure to clean the mouse.
1. Unplug the mouse from the system.
2. Turn the mouse upside down and locate the mouse ball cover (see the
following figure).
3. Turn the ball cover clockwise and remove the cover.
The keyboard and cable together are considered
Maintenance and Troubleshooting 4-3