Lenovo 63664DU Service Guide - Page 26

Errors, without, messages

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Solving computer problems Errors without messages Problem: Solution: Problem: Solution: Problem: Solution: Problem: Solution: When I turn on the machine, nothing appears on the screen and the machine does not beep while starting up. Note: If you are not sure whether you heard any beeps, turn off the computer by pressing and holding the power button for more than 4 seconds; then turn it on and listen again. If you are using an external monitor, see "Computer screen problems" on page 21. If a power-on password is set, press any key to display the power-on password prompt, and then type the correct password and press Enter. If the power-on password prompt does not appear, the brightness level might be set to minimum brightness. Adjust the brightness level by pressing the Fn+Home. If the screen still remains blank, make sure that: v The battery is installed correctly. v The ac adapter is connected to the computer and the power cord is plugged into a working electrical outlet. v The computer power is on. (Turn on the power switch again for confirmation.) If these items are properly set, and the screen remains blank, have the computer serviced. When I turn on the machine, nothing appears on the screen, but I hear two or more beeps. Make sure that the memory card is installed correctly. If it is, but the screen is still blank, and you hear five beeps, have the computer serviced. If you hear 4 cycles of 4 beeps each, the Security Chip has a problem. Have the computer serviced. When I turn on the machine, only a white pointer appears on a blank screen. Reinstall your operating system (see Chapter 4, "Recovery options," on page 27) and turn on the computer. If you still see only the pointer 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. Move the TrackPoint or press a key to exit the screen saver, or press the power switch to resume from standby or hibernation. 18 ThinkPad® X60 Tablet Service and Troubleshooting Guide

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Errors
without
messages
Problem:
When
I
turn
on
the
machine,
nothing
appears
on
the
screen
and
the
machine
does
not
beep
while
starting
up.
Note:
If
you
are
not
sure
whether
you
heard
any
beeps,
turn
off
the
computer
by
pressing
and
holding
the
power
button
for
more
than
4
seconds;
then
turn
it
on
and
listen
again.
If
you
are
using
an
external
monitor,
see
“Computer
screen
problems”
on
page
21.
Solution:
If
a
power-on
password
is
set,
press
any
key
to
display
the
power-on
password
prompt,
and
then
type
the
correct
password
and
press
Enter.
If
the
power-on
password
prompt
does
not
appear,
the
brightness
level
might
be
set
to
minimum
brightness.
Adjust
the
brightness
level
by
pressing
the
Fn+Home.
If
the
screen
still
remains
blank,
make
sure
that:
v
The
battery
is
installed
correctly.
v
The
ac
adapter
is
connected
to
the
computer
and
the
power
cord
is
plugged
into
a
working
electrical
outlet.
v
The
computer
power
is
on.
(Turn
on
the
power
switch
again
for
confirmation.)
If
these
items
are
properly
set,
and
the
screen
remains
blank,
have
the
computer
serviced.
Problem:
When
I
turn
on
the
machine,
nothing
appears
on
the
screen,
but
I
hear
two
or
more
beeps.
Solution:
Make
sure
that
the
memory
card
is
installed
correctly.
If
it
is,
but
the
screen
is
still
blank,
and
you
hear
five
beeps,
have
the
computer
serviced.
If
you
hear
4
cycles
of
4
beeps
each,
the
Security
Chip
has
a
problem.
Have
the
computer
serviced.
Problem:
When
I
turn
on
the
machine,
only
a
white
pointer
appears
on
a
blank
screen.
Solution:
Reinstall
your
operating
system
(see
Chapter
4,
“Recovery
options,”
on
page
27)
and
turn
on
the
computer.
If
you
still
see
only
the
pointer
on
the
screen,
have
the
computer
serviced.
Problem:
My
screen
goes
blank
while
the
computer
is
on.
Solution:
Your
screen
saver
or
power
management
may
be
enabled.
Move
the
TrackPoint
or
press
a
key
to
exit
the
screen
saver,
or
press
the
power
switch
to
resume
from
standby
or
hibernation.
Solving
computer
problems
18
ThinkPad
®
X60
Tablet
Service
and
Troubleshooting
Guide