IBM 6552-23N Service Manual page 3

POWER SAVING FUNCTION
This monitor meets the power-saving guidelines set by
E S
VESA and NERGY TAR, as well as the more stringent
NUTEK .
If the monitor is connected to a computer or video graphics
board that is VESA DPMS (Display Power Management
Signaling) compliant, the monitor will automatically reduce
power consumption in three stages as shown below.
Power consumption
mode
Normal operation
1
Standby (1st mode)
2
Suspend (2nd mode)
3
(sleep)*
Active-off** (3rd mode)
4
(deep sleep)*
Power-off
5
* "Sleep" and "deep sleep" are power saving modes defined by the Environmental Protection Agency.
** When your computer enters a power saving mode, the input signal is cut and NO INPUT SIGNAL appears on the screen. After a few
seconds, the monitor enters power saving mode.
DIAGNOSIS
This monitor is equipped with a self-diagnosis function. If
there is a problem with your monitor or computer, the
screen will go blank and the u indicator will either light up
green or flash orange.
If the u indicator is green
1
Disconnect the video input cable or turn off the
connected computer.
2
Press the u button twice to turn the monitor off and
then on.
3
Press and hold the / button for 2 seconds before
the monitor enters power saving mode.
Screen Horizontal
sync signal
active present
blank absent
blank present
blank absent
— —
u indicator
Notes
• The power management feature is invoked when the computer
recognizes that you have not used your mouse or keyboard for a
user-definable period of time.
• IBM recommends that you switch off your monitor at the end of
each working day, or whenever you expect to leave it unused for
long periods during the day.
Power
Vertical
consumption
sync signal
145 W
present
100 W
present
15 W
absent
3 W
absent
0 W
—
If all four color bars appear (white, red, green, blue), the
monitor is working properly. Reconnect the video input
cable and check the condition of your computer.
If the color bars do not appear, there is a potential monitor
failure. Inform the IBM HelpCenter of the monitor's
condition.
If the u indicator is flashing orange
Press the u button twice to turn the monitor off and
then on.
If the u indicator lights up green, the monitor is working
properly.
If the u indicator is still flashing, there is a potential
monitor failure. Inform the IBM HelpCenter of the monitor's
condition. Be sure to note the model name and serial
number of your monitor. Also note the make and model of
your computer and video board.
u indicator
Recovery time
—
Green
Approx. 5 sec.
Green and orange
alternate
Approx. 5 sec. Green and orange
alternate
Approx. 15 sec. Orange
— Off