Lenovo S40-70 User Guide - Lenovo S40 - Page 40

Troubleshooting, Troubleshooting, Display problems

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Chapter 6. Troubleshooting Troubleshooting Display problems When I turn on the computer, nothing appears on the screen. • If the screen is blank, make sure that: - The AC adapter is connected to the computer and the power cord is plugged into a working electrical outlet. - The computer power is on. (Press the power button again for confirmation.) • If these items are properly set, and the screen remains blank, have the computer serviced. When I turn on the computer, only a white cursor appears on a blank screen. • Restore backed-up files to your Windows environment or the entire contents of your hard disk to the original factory contents using OneKey Recovery system. If you still see only the cursor on the screen, have the computer serviced. My screen goes blank while the computer is on. • Your screen saver or power management may be enabled. Do one of the following to exit from the screen saver or to resume from Sleep mode: - Touch the touchpad. - Press any key on the keyboard. - Press the power button. - Press F9 ( ) to confirm whether the backlight for the LCD screen has been turned off. 34

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34
Chapter 6. Troubleshooting
Troubleshooting
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Display problems
When I turn on the
computer, nothing appears
on the screen.
•
If
t
he scree
n
i
s bla
n
k, make s
u
re
t
ha
t
:
- The AC adap
t
er
i
s co
nn
ec
t
ed
t
o
t
he comp
ut
er a
n
d
t
he power cord
i
s pl
ugg
ed
int
o a work
ing
elec
t
r
i
cal
o
ut
le
t
.
- The comp
ut
er power
i
s o
n
. (Press
t
he power b
utt
o
n
a
g
a
in
for co
n
f
i
rma
ti
o
n
.)
•
If
t
hese
it
ems are properly se
t
, a
n
d
t
he scree
n
rema
in
s
bla
n
k, have
t
he comp
ut
er serv
i
ced.
When I turn on the
computer, only a white
cursor appears on a blank
screen.
•
Res
t
ore backed-
u
p f
i
les
t
o yo
u
r W
in
dows
e
n
v
i
ro
n
me
nt
or
t
he e
nti
re co
nt
e
nt
s of yo
u
r hard d
i
sk
t
o
t
he or
igin
al fac
t
ory co
nt
e
nt
s
u
s
ing
O
n
eKey
Recovery sys
t
em. If yo
u
s
ti
ll see o
n
ly
t
he c
u
rsor o
n
t
he scree
n
, have
t
he comp
ut
er serv
i
ced.
My screen goes blank while
the computer is on.
•
Yo
u
r scree
n
saver or power ma
n
a
g
eme
nt
may be
e
n
abled. Do o
n
e of
t
he follow
ing
t
o ex
it
from
t
he
scree
n
saver or
t
o res
u
me from
S
leep mode:
- To
u
ch
t
he
t
o
u
chpad.
- Press a
n
y key o
n
t
he keyboard.
- Press
t
he power b
utt
o
n
.
- Press
F9
(
)
t
o co
n
f
i
rm whe
t
her
t
he backl
ig
h
t
for
t
he LCD scree
n
has bee
n
tu
r
n
ed off.