Preset Modes; Warning Messages; Damper Wires - IBM 6550-23N Service Manual

Technical Features
Power Saving Function
This monitor meets the power-saving guidelines set by
VESA and E NERGY S 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 Screen Horizontal Vertical
mode sync signal sync signal
Normal operation active present present
1
2 Standby (1st mode) blank absent present
3 Suspend (2nd mode) blank present absent
(sleep)*
Active-off (3rd mode) blank absent absent
4
(deep sleep)*
Power-off — — —
5
* "Sleep" and "deep sleep" are power saving modes defined by the Environmental Protection Agency.

Damper Wires

When viewing a white background, very thin horizontal
lines may be visible on the screen as shown below. These
lines are the shadows of the damper wires and are
characteristic of CRTs that use aperture grilles. The wires
are attached to the aperture grille on the inside of the
Trinitron tube and prevent the vibration of the aperture
grille.
Damper wires
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Notes
• When your computer is in a power saving mode, MONITOR IS
IN POWER SAVE MODE appears on the screen if you press any
button on the monitor (page 15). After a few seconds, the
monitor enters the power saving mode again. Once the
horizontal and vertical sync signals are detected, the monitor
automatically resumes its normal operation mode.
• 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
Recovery time u indicator
consumption
≤ 130 W
—
Green
≤ 15 W
Approx. 5 sec.
Green and orange
alternate
≤ 15 W
Approx. 5 sec. Green and orange
alternate
≤ 3 W
Approx. 15 sec. Orange
≤ 0.5 W
— Off
Plug & Play
This monitor complies with the DDC1, DDC2B and DDC2Bi
Display Data Channel (DDC) standards of VESA.
When a DDC1 host system is connected, the monitor
synchronizes with the V. CLK in accordance with the VESA
standards and outputs the EDID (Extended Display
Identification Data) to the data line.
When a DDC2B or DDC2Bi host system is connected, the
monitor automatically switches to the appropriate standard.
Technical Features

Preset Modes

Resolution Horizontal Vertical Graphics
(dots × lines)
No. Frequency Frequency Mode
640 × 480
1 31.5 kHz 60 Hz VGA
640 × 480
2 37.5 kHz 75 Hz VESA
640 × 480
43.3 kHz 85 Hz VESA
3
800 × 600
4 46.9 kHz 75 Hz VESA
800 × 600
5 53.7 kHz 85 Hz VESA
1024 × 768
6 60.0 kHz 75 Hz VESA
1024 × 768
7 68.7 kHz 85 Hz VESA
1280 × 1024
8 80.0 kHz 75 Hz VESA
1280 × 1024
9 91.1 kHz 85 Hz VESA
1600 × 1200
10 93.8 kHz 75 Hz VESA
Displaying the Monitor's
Information
You can display the model name, serial number and year of
manufacture using the monitor's INFORMATION OSD.
Press and hold the button for 5 seconds.
The INFORMATION OSD appears.
Example:
I NFORMA T I ON
MODE L : I BM P 7 6
SER NO : 1 2 - 3 4 5 6 7
MANUF ACTURED : 1 9 9 9 - 5 2
The INFORMATION OSD includes the model name, serial
number, and manufactured year.
The OSD automatically disappears after about 30 seconds.
Getting Started
Additional Information Technical Features

Warning Messages

If no pictures appears on the screen, one of the following
messages appears on the screen.
I NFORMA T I ON
MON I TOR I S WORK I NG
OUT OF SCAN RANGE
CHANGE PC SE T T I NG
MONITOR IS WORKING or MONITOR IS IN POWER
SAVE MODE appears in the row 1.
If MONITOR IS WORKING appears on the screen
1 The monitor's condition
MONITOR IS WORKING
This indicates that the monitor is working properly.
2 The input signal condition and the remedies
CHECK SIGNAL CABLE
This indicates that no signal is input. Check that the
video signal cable is properly connected and all plugs
are firmly seated in their sockets.
OUT OF SCAN RANGE and CHANGE PC SETTING
These indicate that the input signal is not supported by
the monitor's specifications. Check that the video
frequency range is within that specified for the monitor.
(Horizontal: 30 – 94 kHz, Vertical: 48 –120 Hz)
If MONITOR IS IN POWER SAVE MODE appears on the
screen
1 The monitor's condition
MONITOR IS IN POWER SAVE MODE
This indicates that the computer is in power saving
mode. This message is displayed only when your
computer is in a power saving mode and you press any
of the buttons on the monitor.
2 The remedies
ACTIVATE USING PC
Try pressing any key on the computer keyboard or
moving the mouse, and confirm that your computer's
graphic board is completely seated in the correct bus
slot.
For more information, see "Troubleshooting" on page 16.
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