IBM 655743N - P 92 - 19" CRT Display, Service Manual

Page: 3 / 46

6557-03N/03S/43N/43S
– 3 –
POWER SAVING FUNCTION
DIAGNOSIS
This monitor meets the power-saving guidelines set by
VESA and Energy Star, 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.
You can set the delay time before the monitor enters the
power saving mode using the OSD. Set the time according
to “Setting the power saving delay time” on page 15.
1
2
3
4
5
Note
If no video signal is input to the monitor, the “NO INPUT
SIGNAL” message (page 18) appears. After the delay time has
passed, the power saving function automatically puts the
monitor into the active-off mode and the
u indicator lights up
orange. Once the horizontal and vertical sync signals are
detected, the monitor automatically resumes its normal operation
mode.
Recovery time
—
Approx. 3 sec.
Approx. 3 sec.
Approx. 15 sec. max.
—
u indicator
Green
Green and orange
alternate
Green and orange
alternate
Orange
Off
Power
consumption
≤
130 W
≤
80 W
≤
15 W
≤
5 W
0 W
Power consumption
mode
Normal operation
Standby (1st mode)
Suspend (2nd mode)
Active-off (3rd mode)
Power-off
Screen
active
blank
blank
blank
—
Horizontal
sync signal
present
absent
present
absent
—
Vertical
sync signal
present
present
absent
absent
—
Failure
+B failure
Horizontal / Vertical Deflection
failure, Thermal protector
ABL protector
HV failure
Aging / Self Test
Power LED
Orange
→
Off
(0.5 sec) (0.5 sec)
Orange
→
Off
(1.5 sec) (0.5 sec)
Orange
→
Off
(0.5 sec) (1.5 sec)
Orange
→
Off
→
Orange
→
Off
(0.25 sec) (0.5 sec) (0.25 sec) (1.25 sec)
Orange
→
Off
→
Green
→
Off
(0.5 sec) (0.5 sec) (0.5 sec) (0.5 sec)
Aging Mode (Video Aging) : During Power Save, press “MENU” key for longer than 2 second.
Self Test (OSD Color Bar) : During Power Save, press “CONTRAST” + (
/
) key for longer than 2 second.
Reliability Check Mode : During Power Save, press “CONTRAST”– ( ? ) key for longer than 2 second.