Lenovo 9935B3U User Manual - Page 71

Cleaning, mouse, Optical, Non-optical

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3. When you hear beeps or see a logo screen, stop pressing the F11 key. The Rescue and Recovery workspace opens. Note: For some models, press the Esc key to enter the Rescue and Recovery. 4. From the Rescue and Recovery workspace, select Launch Advanced Rescue and Recovery → Diagnose hardware. 5. Follow the prompts on the screen. The computer will restart. 6. When the computer restarts, the diagnostic program opens automatically. 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. Chapter 6. Troubleshooting and diagnostics 63

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3.
When
you
hear
beeps
or
see
a
logo
screen,
stop
pressing
the
F11
key.
The
Rescue
and
Recovery
workspace
opens.
Note:
For
some
models,
press
the
Esc
key
to
enter
the
Rescue
and
Recovery.
4.
From
the
Rescue
and
Recovery
workspace,
select
Launch
Advanced
Rescue
and
Recovery
→
Diagnose
hardware
.
5.
Follow
the
prompts
on
the
screen.
The
computer
will
restart.
6.
When
the
computer
restarts,
the
diagnostic
program
opens
automatically.
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.
Chapter
6.
Troubleshooting
and
diagnostics
63