Dell Vostro 1200 (Early 2009) - Manual (Page 139)

Appendix 139
Mouse (Non-Optical)
1 Turn the retainer ring on the underside of your mouse counterclockwise,
and then remove the ball.
2 Wipe the ball with a clean, lint-free cloth.
3 Blow carefully into the ball cage to dislodge dust and lint.
4 Clean the rollers inside the ball cage with a cotton swab moistened lightly
with isopropyl alcohol.
5 Recenter the rollers in their channels, as needed. Ensure that fluff from
the swab is not left on the rollers.
6 Replace the ball and retainer ring, and then turn the retainer ring clockwise
until it clicks into place.
Touch Pad
1 Shut down and turn off your computer.
2 Disconnect any attached devices from the computer and from their
electrical outlets.
3 Remove any installed batteries (see "Removing the Battery" on page 36).
4 Moisten a soft, lint-free cloth with water, and wipe it gently across the
surface of the touch pad. Do not allow water from the cloth to seep
between the touch pad and the surrounding palm rest.
CDs and DVDs
NOTICE: Always use compressed air to clean the lens in the CD/DVD drive, and
follow the instructions that come with the compressed-air product. Never touch the
lens in the drive.
If you notice problems, such as skipping, with the playback quality of your
CDs or DVDs, try cleaning the discs.
1 Hold the disc by its outer edge. You can also touch the inside edge of the
center hole.
NOTICE: To avoid damaging the surface, do not wipe in a circular motion around
the disc.
book.book Page 139 Wednesday, December 12, 2007 10:32 AM