NEC POWERMATE 2000, Service And Reference Manual

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Preventive Maintenance 6-3
3. Clean the enclosure and keys with a damp cloth. Use a small, soft-bristle
brush to clean between the keys.
Do not wet or dampen the keyboard’s printed circuit board. If the board gets
wet, thoroughly dry it before reattaching the keyboard to the system unit.
Mouse Cleaning
The mouse has a self-cleaning mechanism that prevents a buildup of dust or lint
around the mouse ball and tracking mechanism under normal conditions.
Periodically, however, the mouse ball must be cleaned. Clean the mouse as
follows.
1.
Power off the system and unplug the AC adapter power cable from its power
source.
2. Unplug the mouse from the system.
3. Turn the mouse upside down and locate the ball cover.
4.
Turn the ball cover counterclockwise and remove the cover.
Removing a Typical Mouse Ball Cover
A – Mouse Ball Cover
5.
Turn the mouse over and remove the ball.
6.
Clean the mouse as follows:
!
Clean the mouse ball with tap water and a mild detergent, then dry it
with a lint-free cloth.
!
Remove any dust and lint from the mouse socket.
7.
Replace the mouse ball in its socket, replace the ball cover, and turn the
cover clockwise until it locks in place.
8. Connect the mouse to the mouse port.
9. Plug in the AC power adapter cable and press the power/sleep button.