Lenovo ThinkPad 300 Service Guide - Page 29

critical, low-battery, error

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Problem: The critical low-battery error message is displayed, and the computer immediately turns off. Solution: The battery power is getting low. Do either of the following: v Connect the AC adapter to the computer and plug it into an electrical outlet. v Replace the battery with a fully charged one. Problem: When you take action to return from sleep (standby) mode, the computer display remains blank. Solution: 1. Check whether an external monitor was turned off while the computer was in sleep (standby) mode. 2. Do either of the following: v Turn on the external monitor to display the image on it. v Press Fn+F7 to bring up the image on the computer screen. Note: If you use the Fn+F7 key combination to apply a presentation scheme, press Fn+F7 at least three times in three seconds. 3. If the problem persists, do the Solution in the following Problem. Chapter 3. Solving computer problems 21

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Problem:
The
critical
low-battery
error
message
is
displayed,
and
the
computer
immediately
turns
off.
Solution:
The
battery
power
is
getting
low.
Do
either
of
the
following:
v
Connect
the
AC
adapter
to
the
computer
and
plug
it
into
an
electrical
outlet.
v
Replace
the
battery
with
a
fully
charged
one.
Problem:
When
you
take
action
to
return
from
sleep
(standby)
mode,
the
computer
display
remains
blank.
Solution:
1.
Check
whether
an
external
monitor
was
turned
off
while
the
computer
was
in
sleep
(standby)
mode.
2.
Do
either
of
the
following:
v
Turn
on
the
external
monitor
to
display
the
image
on
it.
v
Press
Fn+F7
to
bring
up
the
image
on
the
computer
screen.
Note:
If
you
use
the
Fn+F7
key
combination
to
apply
a
presentation
scheme,
press
Fn+F7
at
least
three
times
in
three
seconds.
3.
If
the
problem
persists,
do
the
Solution
in
the
following
Problem.
Chapter
3.
Solving
computer
problems
21