Adjusting The Picture Brightness And Contrast - IBM 6550-23N Service Manual

Getting Started
Setup
This monitor works with platforms running at horizontal
frequencies between 30 and 94 kHz.
Step 1: Make sure the computer and
monitor are switched off
Step 2: Connect the monitor to the
computer
Connect the video signal cable to the video output of the
computer.
To a computer video
output connector
Note
Do not short the pins of the video signal cable.
Step 3: Connect the power cord
With the monitor switched off, connect one end of the
proper power cord for your local supply to the monitor and
the other end to a power outlet.
to a power outlet to AC IN
Power cord
Step 4: Turn on the monitor and computer
4
Step 5: Adjust the monitor's controls
according to your personal
preference
The installation of your monitor is complete.
Note
If no picture appears on the screen and "MONITOR IS WORKING"
or "MONITOR IS IN POWER SAVE MODE" appears on the screen,
see "Warning Messages" on page 15.
Workplace Preparation
Positioning the Monitor
Choose a suitable place to position the monitor where it is
not near fluorescent desk lighting or any equipment that
produces magnetic fields that could cause interference.
Ensure that the furniture or equipment can support the
weight of the monitor. Allow at least 2 inches (50mm)
ventilation space around the monitor.
Height
The monitor should be positioned so that the top of the
screen is slightly below your eye level when you sit at your
workstation.
Orientation
Choose a position that gives the least reflection from lights
and windows, usually at a right angle to any windows. The
monitor should be positioned directly in front of you so that
you do not have to twist your body. Tilt the monitor to a
comfortable viewing angle.
Working Practices
Rest
Take regular breaks. Vary your posture, and stand up and
stretch occasionally as prolonged use of computer
workstations can be tiring.
Back
You should sit back in the chair and use the backrest.
Hands
Use a light touch on the keyboard, keeping your hands and
fingers relaxed. Allow a space in front of the keyboard to
rest your wrists when not typing. Consider using a
wristpad.
Eyesight
Working with monitors, in common with any kind of
prolonged close work, can be visually demanding. Look
away from the screen periodically and have your eyesight
checked regularly.
Screen settings
Set the screen brightness and contrast to a comfortable level.
You may have to adjust this as the lighting changes during
the day. Many application programs let you select color
combinations which can help you to view in comfort.
Customizing Your Monitor
Before adjusting
• Connect the monitor and the computer, and turn them on.
Selecting the On-screen Display
Language
If you need to change the OSD language, see "Using the
LANGUAGE On-screen Display" on page 10.
The default setting is English.
Adjusting the Picture Brightness
and Contrast
Once the setting is adjusted , it will be stored in memory for
all input signals received.
1
Press the ¨ (brightness) ./> or > (contrast) ?//
buttons.
The BRIGHTNESS/CONTRAST OSD appears.
BR I GHTNESS / CONTRAS T
2 6 2 6
2
For brightness adjustment
Press the ¨./> buttons.
> . . . for more brightness
. . . . for less brightness
For contrast adjustment
Press the >?// buttons.
/ . . . for more contrast
? . . . for less contrast
The OSD automatically disappears after about 3 seconds.
To reset, press the ? (reset) button while the OSD is on.
The brightness and contrast are both reset to the factory
settings.
Getting Started
Customizing Your Monitor
Introducing the On-screen
Display System
Most adjustments are made using the MENU OSD.
MENU OSD
Press the button to display the MENU OSD.
This MENU OSD contains links to the other OSDs described
below.
MENU OK
EX I T
S I Z E / CENT ER
GEOME TRY
COLOR
CONVERGENCE
L ANGUAGE
OP T I ON
HE L P
6 8 . 7 k H z / 8 5 H z
1 0 2 4 x 7 6 8
1 EXIT
Closes the MENU OSD.
2
SIZE/CENTER
Displays the SIZE/CENTER OSD for adjusting the
picture's size, centering, or zoom.
3
GEOMETRY
Displays the GEOMETRY OSD for adjusting the picture
rotation and pincushion, etc.
4
COLOR
Displays the COLOR OSD for adjusting the color
temperature.
5
CONVERGENCE
Displays the CONVERGENCE OSD for adjusting the
picture's horizontal and vertical convergence.
6
LANGUAGE
Displays the LANGUAGE OSD for selecting the
language.
7
OPTION
Displays the OPTION OSD for adjusting the OSD
position, degaussing the screen, etc.
8
HELP
Displays the HELP OSD for viewing helpful hints and
information about this monitor.
9 The horizontal and vertical frequencies of
the current input signal
The horizontal and vertical frequencies of the current
input signal are displayed.
!º The resolution of the current input signal
If the signal matches one of this monitor's factory preset
modes, the resolution is displayed.
5
EN
F
ES
C