Lenovo 8137 Manuel D’Utilisation

Page de 94
Symptom
 
Action
 
The
 
keyboard
 
does
 
not
 
work.
 
The
 
computer
 
does
 
not
 
respond
 
to
 
the
 
keyboard.
 
Verify
 
that:
 
v
   
The
 
computer
 
and
 
monitor
 
are
 
turned
 
on
 
and
 
the
 
brightness
 
and
 
contrast
 
controls
 
are
 
set
 
correctly.
 
v
   
The
 
keyboard
 
is
 
securely
 
connected
 
to
 
the
 
keyboard
 
connector
 
on
 
the
 
computer.
 
v
   
No
 
keys
 
are
 
stuck.
If
 
you
 
cannot
 
correct
 
the
 
problem,
 
have
 
the
 
computer
 
serviced.
 
The
 
Enhanced
 
Performance
 
USB
 
Keyboard
 
does
 
not
 
work
 
Verify
 
that:
 
v
   
The
 
computer
 
is
 
turned
 
on.
 
v
   
The
 
keyboard
 
is
 
securely
 
connected
 
to
 
a
 
USB
 
connector
 
on
 
the
 
rear
 
of
 
the
 
computer.
 
v
   
No
 
keys
 
are
 
stuck.
If
 
you
 
cannot
 
correct
 
the
 
problem,
 
have
 
the
 
computer
 
serviced.
 
The
 
mouse
 
does
 
not
 
work.
 
The
 
computer
 
does
 
not
 
respond
 
to
 
the
 
mouse.
 
Note:
 
This
 
applies
 
to
 
a
 
mechanical
 
mouse
 
only.
 
Clean
 
the
 
mouse.
 
Verify
 
that:
 
v
   
The
 
computer
 
and
 
monitor
 
are
 
turned
 
on
 
and
 
the
 
brightness
 
and
 
contrast
 
controls
 
are
 
set
 
correctly.
 
v
   
The
 
mouse
 
is
 
securely
 
connected
 
to
 
the
 
mouse
 
connector
 
on
 
the
 
computer.
If
 
you
 
cannot
 
correct
 
the
 
problem,
 
have
 
the
 
computer
 
serviced.
 
The
 
operating
 
system
 
will
 
not
 
start.
 
Verify
 
that:
 
v
   
There
 
is
 
no
 
diskette
 
in
 
the
 
diskette
 
drive.
v
   
The
 
startup
 
sequence
 
includes
 
the
 
device
 
where
 
the
 
operating
 
system
 
resides.
 
Usually,
 
the
 
operating
 
system
 
is
 
on
 
the
 
hard
 
disk.
 
During
 
startup,
 
look
 
for
 
prompt
 
to
 
start
 
the
 
Setup
 
Utility
 
program.
 
See
 
for
 
details.
 
Verify
 
the
 
startup
 
sequence
 
in
 
the
 
Setup
 
Utility
 
program.
If
 
you
 
cannot
 
correct
 
the
 
problem,
 
have
 
the
 
computer
 
serviced.
 
An
 
error
 
code
 
is
 
displayed
 
before
 
the
 
operating
 
system
 
starts.
 
Write
 
down
 
the
 
code
 
number,
 
and
 
see
 
The
 
computer
 
beeps
 
multiple
 
times
 
before
 
the
 
operating
 
system
 
starts.
 
Verify
 
that
 
no
 
keys
 
are
 
stuck
 
down.
 
If
 
you
 
cannot
 
correct
 
the
 
problem,
 
have
 
the
 
computer
 
serviced.
 
 
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