Table
3-2.
Troubleshooting
(continued)
Problem
Possible
cause
Suggested
action
Reference
Screen
is
blank
and
power
indicator
is
steady
amber
or
flashing
green
v
Press
any
key
on
the
keyboard
or
move
the
mouse
to
restore
operation.
v
Check
the
Power
Options
settings
on
your
computer.
“Understanding
power
management”
on
page
2-6
The
power
indicator
is
green,
but
there
is
no
image.
The
video
signal
cable
is
loose
or
disconnected
from
the
system
or
monitor.
Be
sure
the
video
cable
is
connected
with
the
system
properly.
“Connecting
and
turning
on
your
monitor”
on
page
1-3
The
monitor
brightness
and
contrast
are
at
the
lowest
setting.
Adjust
the
brightness
and
contrast
setting
on
the
OSD
menu.
“Adjusting
your
monitor
image”
on
page
2-3
One
or
more
of
the
pixels
appear
discolored
.
This
is
a
characteristic
of
the
LCD
technology
and
is
not
an
LCD
defect.
If
there
are
more
than
five
pixels
missing,
contact
the
Customer
Support
Center.
Appendix
A,
“Service
and
Support”
on
page
A-1
v
Fuzzy
lines
in
text
or
a
blurry
image.
v
Horizontal
or
vertical
lines
through
the
image.
“Adjusting
your
monitor
image”
on
page
2-3
“Manual
image
setup”
Perform
automatic
image
setup.
If
automatic
image
setup
does
not
help,
perform
manual
image
setup.
“Selecting
a
supported
display
mode”
on
page
2-5
When
working
in
the
native
resolution,
you
may
find
additional
improvements
by
adjusting
the
Dots
Per
Inch
(DPI)
setting
on
your
system.
See
the
Advanced
section
of
your
system’s
display
properties.
Manual
image
setup
If
automatic
image
setup
does
not
establish
the
image
that
you
prefer,
perform
manual
image
setup.
Note:
Have
your
monitor
powered
on
for
about
15
minutes,
until
the
monitor
warms
up.
1.
Press
at
the
bottom
of
the
monitor
to
open
the
OSD
menu.
2.
Use
or
to
select
and
press
to
access.
3.
Use
or
to
select
Clock
and
Phase
adjustment.
Chapter
3.
Reference
information
3-3
The
monitor
is
in
Standby/Suspend
mode
.
v
Image
setup
has
not
been
optimized
.
v
Your
system
Display
Properties
setting
ha
s
not
been
optimized.
Adjust
the
resolution
settings
on
your
system
to
match
the
native
resolution
for
this
monitor:
1440
x
900
at
60
Hz.
v
Clock
(pixel
frequency)
adjusts
the
number
of
pixels
scanned
by
one
horizontal
sweep.
If
the
frequency
is
not
correct,
the
screen
shows
vertical
stripes
and
the
picture
does
not
have
the
correct
width.
v
Phase
adjusts
the
phase
of
the
pixel
clock
signal.
With
a
wrong
phase
adjustment,
the
picture
has
horizontal
disturbances
in
light
picture.
4.
When
the
image
no
longer
looks
distorted,
save
the
Clock
and
Phase
adjustments.
5.
Press
to leave the OSD menu.
