IBM 4820, System Reference Manual

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Chapter 7. System diagnostics
This section describes the diagnostics.
Using the OSD menu
The OSD menu allows you to adjust the display settings such as contrast, brightness,
clock phase, and image position.
To open the OSD menu, press and hold the minus (−) and plus (+) buttons at the same
time. The following menu appears:
Auto Adjust
Manual Adjust
Brightness
Contrast
Information
Reset
______________________________
(+) Select
(-) Scroll
(+&-) Exit
Auto Adjust
Automatically adjusts the settings. Use this option when you install the display
and at other times when image quality degrades.
Manual Adjust
Allows you to regulate the clock, phase, and image position. See “Using
Manual Adjust” on page 7-2.
Brightness
Allows you to regulate the display’s brightness setting.
Contrast
Allows you to regulate the display’s contrast settings.
Information
Provides the current screen resolution, the horizontal, and the vertical sync
signal frequencies.
Reset Presents Yes or No dialogue box that allows you to reset the menu settings to
the default values.
Exiting the OSD Menu
To exit the OSD menu, press the minus (−) and plus (+) buttons at the same time. The
system saves your values.
Exiting through time-out
The OSD menu times-out after approximately 20 seconds of inaction. The system does
not save the settings.
© Copyright IBM Corp. 1999, 2003
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