IBM 21L4365 User Manual page 30

Possible
Problem
Cause
The monitor is
not receiving
Screen is blank
a video signal
and power
indicator is
Flashing green
Display mode
every 0.5
of the
second
computer is
outside the
range of the
monitor
Screen is blank
The monitor is
and power
in the Power
indicator is
Management
flashing amber
Suspend or
every 0.5 or 1
Off state
second
There are
Image appears
noises in the
to be smeared
video signal
Image appears The Color
to be setting may
discolored be incorrect
The LCD contains over 2,300,000 thin-film
A few dots are
transistors (TFTs). A small number of
missing,
missing, discolored, or lighted dots may be
discolored, or
present on the screen, which is an intrinsic
inappropriately
characteristic of the TFT LCD technology
lighted.
and is not an LCD defect.
Suggested Action
Check that the signal cable
is firmly connected to the
computer.
Check that no pins are
bent in the signal cable
connector.
Reconfigure the computer
to use a supported display
mode.
Press any key on the
keyboard or move the
mouse to restore
operation.
Check the Power
Management software on
your computer.
Select IMAGE LOCK menu
in the OSD. Then select
MANUAL to adjust FINE/
COARSE settings.
Adjust the Color settings.
Reference
Connecting
your Monitor
section on
page 4
Further
Information
section on
page 19
Power
Management
section on
page 21
User
controls
section on
page 14
User
controls
section on
page 14
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