This document describes using and adjusting the S1931, S2031, S2031a, S2321a, S2331, and S2331a LCD monitors.
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HP S1931a, S2031, S2031a, S2321a, S2331, and S2331a LCD Monitors - Using and Adjusting Your Monitor
Figure : S2031 LCD Monitor

Installing drivers
Install the software from the CD, or download them from the Internet as follows:
Installing drivers from the CD
To install the monitor driver from the CD:
-
Insert the CD in the computer CD drive.The CD menu appears.
-
Select the language.
-
Click Install Monitor Driver Software.
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Follow the on-screen instructions.
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Restart the computer.
-
Check that the proper resolutions and refresh rates appear in the Display Properties window in the Control Panel.
Installing drivers from the Web
To download the latest version of drivers and software files from the HP Support Web site:
-
Go to the HP Support Web site.
-
Select the country/region.
-
Select Download Drivers and Software.
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Enter the model number of the monitor, for example S2031a.The software download pages for the monitor display.
-
Make sure the system meets the requirements given.
-
Download and install the driver and software files by following the steps on the screen.
Monitor control buttons
Monitor control buttons are located on the front panel of the monitor.
Figure : Monitor control buttons

No.
|
Icon
|
Description
|
1
|
Menu
|
Open, or select the OSD menu.
|
2
|
-
|
The Select Minus button navigates forward through the OSD menu and decreases the adjustment levels.
If the OSD menu is inactive, press to open the volume level adjustment menu.
|
3
|
+
|
The Select Plus button navigates backward through the OSD menu and increases the adjustment levels.
If the OSD menu is inactive, press to open the volume level adjustment menu.
|
4
|
OK
|
Press the OK button to select a highlighted function.
|
5
|
![]() |
Power button and LED. Turn the monitor on or off.
The Power button is located on the bottom center of
the monitor.
Power LED. When the monitor is on and in normal operating mode, the power light is blue.
When it is amber, the monitor is in sleep mode.
|
Auto-Adjustment (VGA input only)
Optimize the screen performance for the VGA input by using the Auto-Adjustment in the OSD software or downloading the HP Adjustment Pattern Utility from the HP website.
This software can correct the following conditions:
-
Fuzzy or unclear focus
-
Ghosting, streaking, or shadowing effects
-
Faint vertical bars
-
Thin, horizontal scrolling lines
-
Off-center picture
To use the auto-adjustment feature:
-
Allow the monitor to warm up for 20 minutes before adjusting.
-
Press the Menu button, select Image Control, and then select Auto-adjustment from the OSD menu.If the result is not satisfactory, continue with this procedure.
-
Download and run the HP Adjustment Pattern Utility from the HP website:
-
Go to the HP Support Web site.
-
Select the country/region.
-
Select Download Drivers and Software, enter the model number of the monitor, for example S2031a, and then press Enter.
-
Select your operating system, and click Next.
-
Click Utility - Tools, and then click HP Adjustment Pattern Utility. On the download page, click Download.
-
Follow the steps on the screen to run the utility.Figure : Setup test pattern
-
Press the ESC key to exit from the test pattern.
-
Using Onscreen Display (OSD)
Follow these steps to adjust monitor settings with the OSD menu.
-
Turn on the computer and monitor.
-
Press the Menu button to access the OSD menu.The OSD main menu opens.
-
To navigate through the Main or Submenu menus, on the monitor front panel press the + (plus) button to scroll up, or the – (minus) button to scroll down.
-
To select an item from the OSD Menu, use the + (plus) or - (minus) buttons to scroll to and highlight your selection. Press the OK button to select the highlighted item.
-
When a menu item is selected and its corresponding screen appears, use the + or – buttons to adjust the scale of the item.
-
Press Save to save the setting, or Cancel to discard the setting and return to the previous menu. Press the Menu button to exit the OSD.
note:
When a menu is displayed, if the buttons remain untouched for 10 seconds, adjustments and settings are not saved and the menu closes.
Main Menu Options
|
Submenu Options
|
Description
|
Input Select
|
Selects the input source for VGA and DVI.
(select models
|
|
Brightness
|
Adjusts the brightness level of the screen.
|
|
Contrast
|
Adjusts the contrast level of the screen.
|
|
Image Control
|
Adjust the image on the screen. The
ambient brightness sensor can also be
enabled or disabled (only applicable to
some models)
|
|
Auto adjustment
|
Automatically optimizes the image to display the
ideal setting.
|
|
Horizontal position
|
Adjusts the horizontal position of the image.
|
|
Vertical position
|
Adjusts the vertical position of the image.
|
|
Clock
|
Minimizes any vertical bars or stripes visible on the screen background. Adjusting the clock also changes the horizontal screen image. VGA input only.
|
|
Clock phase
|
Adjusts the clock phase of the screen.
This adjustment eliminates all horizontal
noises to enable clearer and more lifelike
images and characters. VGA input only.
|
|
Color
|
Selects the color displayed on the
screen. The factory default setting is
6500 K or Custom color, depending
on the model of your monitor.
|
|
Custom color
|
To select and adjust the color range:
R to set the level of red
G to set the level of green
B to set the level of blue
|
|
sRGB
|
To set the color of the screen to comply
with color standards used in the imaging
industry.
|
|
Language
|
Selects the language displayed on the
OSD menu. The factory default setting
is English
|
|
Management
|
Selects settings to manage the OSD and other monitor settings.
|
|
Volume
|
Adjusts the volume.
|
|
OSD control
|
Adjusts the position of the OSD menu
displayed on the screen.
OSD horizontal position – adjusts the
visual position of the OSD menu to the
right or left of the screen. The factory
default horizontal position value is 50.
OSD vertical position – adjusts the
visual position of the OSD menu up or
down the screen. The factory default
vertical position value is 50.
OSD transparency – adjusts the
transparency to enable transparent
background information under the OSD.
OSD display time – sets the OSD
display time (in seconds) after the last button is pressed . The factory default setting is 30 seconds.
|
|
Power saver
|
Enables the energy-saving function. Select
On or Off.
The factory default setting is On.
|
|
Mode Display
|
The resolution, refresh rate, and frequency
information displays when the OSD
main menu is accessed. Select On
or Off.
|
|
Monitor Status
|
The operational status of your monitor displays when you turn on your monitor.
Select the position where the status
information is displayed from Top,
Middle,
Bottom, or
Off.
|
|
DDC/CI support
|
Controls some OSD menu functions, such
as brightness, contrast, and color
temperature, on your computer if allowed.
This feature can be set as On or Off.
|
|
Power
indicator on
the front
panel
|
Power on/off the indicator (LED) on the
power button. If the indicator is set as Off, it
will be off all the time.
|
|
Sleep timer
|
The following timer adjustment menu options
are available:
Set the current time - to set the current time
in hours and minutes.
Set the sleep time - to set the desired time
when your monitor works under the sleeping
mode.
Set the opening time - to set the desired
time when your monitor is awakened from
the sleeping mode.
Timer - Set On or Off status for the Sleep
Timer. The default setting is Off.
Sleep at once - to activate the sleep mode
for your monitor
|
|
Default video
input
|
When the monitor is connected to two
active and valid video sources, select one
of them as the default video input.
The default signal input is DVI.
Changes you make will be activated
after you restart the computer.
|
|
Information
|
Selects and displays important information about the monitor.
|
|
Restore factory settings
|
Returns all OSD menu settings to the factory default settings.
|
Adjusting screen quality
The auto adjustment feature automatically fine-tunes the image quality for display size, position, clock,
and clock phase each time a new video mode is displayed. For more precise adjustments of VGA input, download and run
the HP Auto Adjustment software from the HP website.
If you want additional image quality improvement, use the Clock and Clock Phase controls of the monitor
to fine tune the image. Use these controls only when the auto-adjustment function does not provide a satisfactory
image.
note:The Clock controls are adjustable only when using an analog input. These controls are not adjustable for digital inputs.The Clock must first be set correctly since the Clock Phase settings are dependent on the main Clock setting.
-
Clock - Increase or decrease the value to minimize any vertical bars or stripes visible on the screen.
-
Clock phase - Increase or decrease the value to minimize video distortion or video jitter.
Use these controls only when the auto adjustment function does not provide a satisfactory monitor image in analog mode. To obtain the best results, download and use the auto-adjustment pattern
software utility from the HP website:
-
Allow the monitor to warm up for 20 minutes before adjusting.
-
Display the adjustment-pattern application provided on the CD.
-
Access the OSD menu, and then select Image Control.
-
Set the main Clock settings correctly first, because the Clock phase settings depend on the main Clock settings.If the monitor images become distorted, when adjusting the Clock and Clock phase values, continue adjusting the values until the distortion disappears.
To restore the factory settings, access the OSD menu, select Restore factory settings, and then press OK.
Identifying monitor conditions
Special messages display on the monitor screen for the following
monitor conditions:
-
Input Signal Out of Range: Indicates the monitor does not support the input signal because the resolution and/or refresh rate are set higher than the monitor supports.Change your video card settings to a lower resolution or refresh rate. Restart your computer for the new settings to take effect.The maximum resolution rates are as follows:
-
For the S1931a monitor: 1366 x 768 @ 60 Hz
-
For the S2031 and S2031a monitor: 1600 x 900 @ 60 Hz
-
For the S2321a monitor: 1920 X 1080 @60 Hz
-
For the S2331 monitor: 1920 X 1080 @60 Hz
-
-
Monitor Going to Sleep: Indicates the screen display is entering a sleep mode. The speakers (select models) are turned off in sleep mode.
-
Check Video Cable: Indicates a video input cable is not properly connected to the computer or monitor.
-
No Input Signal: Indicates the monitor is not receiving a video signal from the computer on the monitor video input connector. Check whether the computer or input signal source is off or in the power-save mode.
-
Auto Adjustment in Progress: Indicates the auto-adjustment function is active and in process.
Troubleshooting
The following table lists possible problems, the possible cause of each problem, and the recommended solutions.
Problem
|
Possible Cause
|
Solution
|
Power LED is not on.
|
Power is not on.
|
Make sure that the power cord is properly connected to
a grounded power outlet and to the monitor, and the
monitor power button is on.
|
Screen is blank.
|
Power cord is disconnected.
|
Connect the power cord and turn on the power.
|
Power button on front panel of
the monitor is turned off.
|
Press the front panel power button.
note: |
|
Video cable is improperly
connected.
|
Make sure that the video cable is connected correctly.
|
|
Screen blanking is active.
|
Press any key on the keyboard or move the mouse
to inactivate the screen blanking utility.
|
|
Screen image appears distorted; text is
fuzzy or blurred; image quality is
degraded.
|
The computer's graphics card
resolution is set lower or higher
than the monitor's native
resolution.
|
Set the computer’s display resolution to the same
mode as the monitor’s recommended native screen
resolution to provide the best picture quality.
|
Image appears blurred, indistinct, or
too dark.
|
Brightness and contrast are
too low.
|
Press the OK button on the front panel. If this
does not correct the image, press the Menu button
to open the OSD Menu, and adjust the brightness
and contrast scales as needed.
|
Picture bounces, flickers, or wave
pattern is present in the picture.
|
Interference from another
electrical device.
|
Move electrical devices that may cause electrical
interference as far away from the monitor as
possible.
|
Image is not centered
|
Position may need adjustment
|
Press the Menu button to access the OSD menu.
Select Picture/Horizontal Position or Vertical
Position to adjust the horizontal or vertical position
of the image.
|
Input Signal Out of Range. - Change resolution setting is
displayed on screen.
|
Video resolution and/or refresh
rate are set higher than what
the monitor supports.
|
Restart the computer and enter Safe Mode. Change
the settings to a supported setting. Restart
the computer so that the new settings take effect.
|
Screen is black or displaying at a lower resolution while displaying high-definition (HD) content (select models).
|
Check if your monitor and computer support HDCP.
|
|
Unable to hear audio from built-in
speakers (select models only).
|
Volume is muted or too low.
|
Do the following:
|
Monitor is always in sleep
mode (amber LED).
|
The computer power switch should be in the On position.
The computer graphic card should be snugly seated in its slot.
Check that the monitor video cable is properly connected to the computer.
Inspect the monitor video cable, and make sure that none of the pins are bent.
Check that your computer is operational: Press the Caps Lock key and observe the Caps Lock
LED found on most keyboards. The LED should either turn on or off after hitting the Caps Lock
key.
|
|
No Plug and Play.
|
In order for the Plug and Play feature of the monitor to work, you need a computer and graphic
card that are compatible with Plug and Play. Check with your computer manufacturer.
Check the monitor's video cable, and make sure that none of the pins are bent.
Make sure that the monitor drivers are installed. Monitor drivers are also available at:
http:// www.hp.com/support
|
Power-saver feature
When the monitor is in normal operating mode, the Power light is
blue.
The monitor supports a reduced power state which occurs if the monitor detects the absence of either the horizontal sync signal and/or the vertical sync signal. Upon detecting the absence of these signals, the screen goes blank, the backlight turns off, and the Power light turns orange.
note:The power saver feature must be activated on your computer for this feature to work. See your computer documentation for instructions on setting energy-saver features (sometimes called power-management features).
Tips and recommendations
-
Unplug your monitor from the wall outlet before cleaning. Clean the monitor plastics with a clean cloth dampened with water. Do not use liquid cleaners or aerosol cleaners. Clean the monitor screen with an antistatic screen cleaner.
-
Do not open your monitor cabinet or try to service this product yourself. Adjust only those controls that are covered in the operating instructions. If your monitor is not operating correctly, or has been dropped or damaged, contact your HP authorized dealer, reseller, or service provider.
-
Use only a power source and connection appropriate for this monitor, as indicated on the label or back plate of the monitor.
-
Never disconnect the monitor by pulling the cord.
-
Turn your monitor off when not in use. You can substantially increase the life expectancy of your monitor by using a screen saver program and turning off the monitor when not in use.
-
When removing the monitor base, place the monitor face down on a soft flat area to prevent it from getting scratched, defaced, or broken.
-
Burn-in image damage might occur on monitors that display the same static image on the screen for a prolonged time. To avoid burn-in image damage on your monitor, always start a screen saver or turn off the monitor when it is not in use for a prolonged period.
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