Lenovo 649319U User Guide - Page 43

Cleaning, mouse, Optical, Non-optical

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6. When the program finishes, be sure to remove the CD or diskette from the drive. 7. Select the diagnostic test you want to run. Press the F1 key for additional help. Cleaning the mouse This section provides instructions on how to clean an optical or non-optical mouse. Optical mouse An optical mouse uses a light-emitting diode (LED) and an optical sensor to navigate the pointer. If the pointer on the screen does not move smoothly with the optical mouse, you might need to clean the mouse. To clean the optical mouse: 1. Turn off your computer. 2. Disconnect the mouse cable from the computer. 3. Turn the mouse upside down to look at the lens. a. If there is a smudge on the lens, gently clean the area with a plain cotton-tipped swab. b. If there is debris in the lens, gently blow the debris away from the area. 4. Check the surface on which you are using the mouse. If you have a very intricate picture or pattern beneath the mouse it may be difficult for the digital signal processor (DSP) to determine changes in the mouse position. 5. Reconnect the mouse cable to the computer. 6. Turn your computer back on. Non-optical mouse The non-optical mouse uses a ball to navigate the pointer. If the pointer on the screen does not move smoothly with the mouse, you might need to clean the mouse. To clean the non-optical mouse: Note: The following illustration might be slightly different from your mouse. Chapter 8. Troubleshooting and diagnostics 35

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6.
When
the
program
finishes,
be
sure
to
remove
the
CD
or
diskette
from
the
drive.
7.
Select
the
diagnostic
test
you
want
to
run.
Press
the
F1
key
for
additional
help.
Cleaning
the
mouse
This
section
provides
instructions
on
how
to
clean
an
optical
or
non-optical
mouse.
Optical
mouse
An
optical
mouse
uses
a
light-emitting
diode
(LED)
and
an
optical
sensor
to
navigate
the
pointer.
If
the
pointer
on
the
screen
does
not
move
smoothly
with
the
optical
mouse,
you
might
need
to
clean
the
mouse.
To
clean
the
optical
mouse:
1.
Turn
off
your
computer.
2.
Disconnect
the
mouse
cable
from
the
computer.
3.
Turn
the
mouse
upside
down
to
look
at
the
lens.
a.
If
there
is
a
smudge
on
the
lens,
gently
clean
the
area
with
a
plain
cotton-tipped
swab.
b.
If
there
is
debris
in
the
lens,
gently
blow
the
debris
away
from
the
area.
4.
Check
the
surface
on
which
you
are
using
the
mouse.
If
you
have
a
very
intricate
picture
or
pattern
beneath
the
mouse
it
may
be
difficult
for
the
digital
signal
processor
(DSP)
to
determine
changes
in
the
mouse
position.
5.
Reconnect
the
mouse
cable
to
the
computer.
6.
Turn
your
computer
back
on.
Non-optical
mouse
The
non-optical
mouse
uses
a
ball
to
navigate
the
pointer.
If
the
pointer
on
the
screen
does
not
move
smoothly
with
the
mouse,
you
might
need
to
clean
the
mouse.
To
clean
the
non-optical
mouse:
Note:
The
following
illustration
might
be
slightly
different
from
your
mouse.
Chapter
8.
Troubleshooting
and
diagnostics
35