HP Le1851w User Guide

							Optimizing Image Performance
Two controls in the on-screen display can be adjusted to improve image performance: Clock and Clock
Phase.
NOTE:The Clock and Clock Phase 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. Use these controls only when the auto-adjustment function does not provide a satisfactory
image.
●Clock—Increases/decreases the value to minimize any vertical bars or stripes visible on the
screen background.
●Clock Phase—Increases/decreases the value to minimize video flickering or blurring.
NOTE:When using the controls, you will obtain the best results by using the auto-adjustment pattern
software utility provided on the CD.
When adjusting the Clock and Clock Phase values, if the monitor images become distorted, continue
adjusting the values until the distortion disappears. To restore the factory settings, select Yes from the
Factory Reset menu in the on-screen display.
To eliminate vertical bars (Clock):
1.Press the Menu button on the monitors front panel to open the OSD Menu, and then select
Image Control > Clock.
2.Press the + (Plus) or – (Minus) buttons on the monitors front panel to eliminate vertical bars. Press
the buttons slowly so that you do not miss the optimum adjustment point.
Figure 4-1  Clock Adjustment
3.After adjusting the Clock, if blurring, flickering, or bars appear on the screen, proceed to adjust
the Clock Phase.
To remove flickering or blurring (Clock Phase):
1.Press the Menu button on the monitors front panel to open the OSD Menu, and then select
Image Control > Clock Phase.
2.Press the + (Plus) or – (Minus) buttons on the monitors front panel to eliminate flickering or
blurring. Flicking or blurring may not be eliminated depending on your computer or graphics
controller card installed.
Figure 4-2  Clock Phase Adjustment
ENWWAdjusting the Monitor Settings
23
 
						

							To correct screen position (Horizontal Position or Vertical Position):
1.Press the Menu button on the monitors front panel to open the OSD Menu, and then select
Image Control > Horizontal Position and/or Vertical Position.
2.Press the + (Plus) or – (Minus) buttons on the monitors front panel to properly adjust the position of
the image in the display area of the monitor. The Horizontal Position shifts the image left or right;
the Vertical Position shifts the image up and down.
Figure 4-3  Horizontal or Vertical Position Adjustment
Using the HP Display Assistant Utility
HP Display Assistant, included on the software and documentation CD, is a software utility that guides
you through the tuning process with easy to understand instructions and background patterns designed
for each monitor control. It provides:
●Accurate screen calibration through the use of step-by-step instruction Wizards to obtain the best
overall image quality.
●Software control of the monitor image and color settings to eliminate dependence on the monitor’s
front panel buttons and On-Screen Display (OSD) menu.
●Defined preset display settings for each individual user in a multi-user environment.
●Multiple preset display settings for a single user based on content and ambient lighting.
●Asset Management and Power Management capabilities that include remote control for individual
or a group of displays on the domain from a centralized console application.
●Power Saving Plug-in feature that applies power saving modes to the display and a schedule
power saving feature that allows the display to be set to idle (stand-by) mode or powered off after
a pre-determined time of inactivity.
The HP Display Assistant Utility has two modes of operation: Wizard and OSD mode. The preferred
method of use is Wizard mode, which takes you through a step-by-step process to accurately calibrate
the monitor. This method relies on a sequence of steps that will obtain the best display results when
completed.
NOTE:Refer to the HP Display Assistant user guide for additional information about the software.
24 Chapter 4   Operating the Monitor ENWW
 
						

							Identifying Monitor Conditions
Special messages will appear on the monitor screen when identifying the following monitor conditions:
●Input Signal Out of Range—Change resolution setting to 1366 x 768 – 60Hz—
Indicates the monitor does not support the input signal because the resolution and/or refresh rate
are set higher than the monitor supports (LE1851w and LE1851wl models).
●Input Signal Out of Range—Change resolution setting to 1600 x 900 – 60Hz—
Indicates the monitor does not support the input signal because the resolution and/or refresh rate
are set higher than the monitor supports (LE2001wm, LE2001w, and LE2001wl models).
●No Source Signal—Indicates the monitor is not receiving a video signal from the PC on the
monitor video input connector. Check to determine if the PC or input signal source is off or in the
power saving mode.
●Auto Adjustment in Progress—Indicates the auto-adjustment function is active.
●Monitor Going to Sleep—Indicates the screen display is entering a sleep mode.
●Check Video Cable—Indicates the video cable is not properly connected to the computer.
●OSD Lockout—The OSD can be enabled or disabled by pressing and holding the Menu button
on the front panel for 10 seconds. If the OSD is locked, the warning message OSD Lockout
displays for ten seconds.
◦If the OSD is locked, press and hold the Menu button for 10 seconds to unlock the OSD.
◦If the OSD is unlocked, press and hold the Menu button for 10 seconds to lock the OSD.
●Power Button Lockout—Indicates the power button is locked. If the power button is locked,
the warning message Power Button Lockout displays.
◦If the power button is locked, press and hold the power button for 10 seconds to unlock the
power button function.
◦If the power button is unlocked, press and hold the power button for 10 seconds to lock out
the power button function.
●Theft Mode Enabled—Indicates that theft deterrence mode has been activated. Theft
deterrence is an optional feature that can be set up in HP Display Assistant. Theft deterrence mode
is triggered if both the power and display cables have been disconnected from the monitor, the
monitor is reconnected to a different computer, and the theft deterrence PIN number is not entered
within the elapsed time. When the monitor is in theft deterrence mode, all front panel buttons are
disabled other than the power button.
●Speaker Self-Test In Progress—Indicates the monitor is testing the left and right speakers.
ENWWIdentifying Monitor Conditions
25
 
						

							Sleep Timer Mode
The Sleep Timer mode is an energy-saving feature that enables you to set a time for the monitor to
power on and off at the same time every day. This also extends the life of the backlight bulbs in the
monitor. The Sleep Timer has five settings:
●Set Current Time
●Set Sleep Time
●Set On Time
●Timer: On/Off
●Sleep Now
To set the timer:
1.Press the Menu button on the monitor front panel to display the OSD Menu.
2.Scroll down and highlight Management.
3.Press the Menu button to select Management.
4.Scroll down and highlight and select Sleep Timer > Set Current Time.
NOTE:You must set the current local time before you reset the time for Sleep Time or On
Time. Note that the time is displayed in a 24–hour clock format. For example, 1:15 p.m. is
displayed as 13 hours 15 minutes.
A power failure or loss of power to the monitor will cause the timer to reset to 00:00. If this
occurs, you will need to reset the sleep timer mode.
5.Press the Menu button once to enter the adjustment mode for hours.
6.Press the - (Minus) or + (Plus) button to adjust the hour.
7.Press the Menu button again to enter the time for minutes.
8.Press the - (Minus) or + (Plus) button to adjust the minutes.
9.Press the Menu button to lock in the time chosen.
10.After setting the current time, the highlight automatically skips to Set Sleep Time hours. Repeat
steps 6 through 9 to set Sleep Time.
11.If you do not want to set Sleep Time, press the Menu button twice, then select Save and
Return to exit the menu.
12.After setting Sleep Time, the highlight automatically skips to Set On Time hours. Repeat steps
6 through 9 to set On Time.
13.Set the Timer mode to On to activate the Sleep Timer settings.
14.When you are finished, select Save and Return to exit the menu.
The fifth selection, Sleep Now, turns the monitor backlights off immediately and stays in sleep mode
until the next On Time activates or a monitor button is pressed.
26 Chapter 4   Operating the Monitor ENWW
 
						

							sRGB Support
The monitor is designed to support sRGB for color management, which adapts to the color standards
used in the image technology industry.
To take advantage of the sRGB support, you will need to change the monitor’s color temperature to
sRGB and install the sRGB color profile (ICM) file.
NOTE:The sRGB color temperature preset will improve the color accuracy of sRGB images on the
computer monitor, but some color variation may still occur.
Changing the Color Temperature
1.Press the Menu button on the front panel of the monitor to launch the Main Menu of the OSD.
2.Select Color.
3.Select sRGB.
4.Select Save and Return to exit the menu.
Installing the sRGB ICM File for Microsoft Windows 2000 and
Windows XP
NOTE:To complete the following procedure, you must be logged in as an administrator or a member
of the administrator’s group. If the computer is connected to a network, network policy settings may
prevent you from completing this procedure. The sRGB ICM file does not support Windows 95 and
Windows NT operating systems.
1.Click the Display icon in the Control Panel.
2.In the Display Properties windows, select the Settings tab, then click the Advanced button.
3.Select the Color Management tab, then click the Add button to open the Add Profile
Association dialog box.
4.Select the sRGB Color Space Profile.icm file, then click the Add button
5.To activate a color profile for the monitor, you must set it as the Default Monitor Profile. Select
sRGB Color Space Profile, then click Set as Default button.
6.Click Apply or OK.
Installing the sRGB ICM File for Microsoft Windows Vista
1.Click Appearance and Personalization icon in the Control Panel.
2.Click Personalization.
3.Click Display Settings.
4.Click the Advanced Settings button.
5.Click the Color Management tab, then click the Color Management button.
6.Click the Advanced tab, then click the Change System Defaults button.
ENWWsRGB Support
27
 
						

							7.On the Devices tab, click theAdd button.
8.Select the RGB Color Space Profile.icm file, then click the OK button.
9.To activate a color profile for the monitor, you must set it as the Default Monitor Profile. Select
sRGB Color Space Profile, then click the Set as Default button.
Installing the sRGB ICM File for Microsoft Windows 7
1.Click Appearance and Personalization icon in the Control Panel.
2.Click Display.
3.Click Change display settings.
4.Click Advanced settings.
5.Click the Color Management tab, then click the Color Management button.
6.Click the Advanced tab, then click the Change System Defaults button.
7.On the Devices tab, click the Add button.
8.Select the RGB Color Space Profile.icm file, then click the OK button.
9.To activate a color profile for the monitor, you must set it as the Default Monitor Profile. Select
sRGB Color Space Profile, then click the Set as Default button.
28 Chapter 4   Operating the Monitor ENWW
 
						

							A Troubleshooting
Solving Common Problems
The following table lists possible problems, the possible cause of each problem, and the recommended
solutions.
Problem Possible Cause Solution
Screen is blank. Power cord is disconnected. Connect the power cord.
Power button on front panel of
the monitor is turned off.Press the front panel power button.
NOTE:If pressing the power button has no effect,
press and hold the power button for 10 seconds to
disable the power button lockout feature.
Video cable is improperly
connected.Connect the video cable properly. Refer to Chapter
3, 
Setting Up the Monitor on page 4 for more
information.
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/auto 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.
Image is not centered Position may need adjustment. Press the Menu button to access the OSD menu.
Select Image Control/Horizontal Position or Vertical
Position to adjust the horizontal or vertical position
of the image.
Check Video Cable is displayed on
screen.Monitor video cable is
disconnected.Connect the VGA cable to the VGA connector on
the computer and the VGA connector on the
monitor. Be sure that the computer power is off
while connecting the video cable.
Input Signal Out of Range.
Change Settings to 1366 x 768
@ 60Hz (18 models) OR Input
Signal Out of Range. Change
Settings to 1600 x 900 @ 60Hz
(20 models) 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 (see 
Recognizing
Preset Display Resolutions on page 34). Restart
the computer so that the new settings take effect.
The monitor is off but it did not seem to
enter into a low-power sleep mode.The monitors power saving
control is disabled.Check the monitors OSD menu setting for power
saving enable/disable controls. The control should
be set to enable to allow the monitor to enter into
low-power modes.
ENWW Solving Common Problems 29
 
						

							Problem Possible Cause Solution
OSD Lockout is displayed. The monitors OSD Lockout
function is enabled.Press and hold the Menu button for 10 seconds to
disable the OSD Lockout function.
Power Button Lockout is
displayed.The monitors Power Button
Lockout function is enabled.Press and hold the power button for 10 seconds to
unlock the power button function.
Online Technical Support
For the online access to technical support information, self-solve tools, online assistance, community
forums of IT experts, broad mutlivendor knowledge base, monitoring and diagnostic tools, go to
http://www.hp.com/support
Preparing to Call Technical Support
If you cannot solve a problem using the troubleshooting tips in this section, you may need to call
technical support. Have the following information available when you call:
●Monitor model number
●Monitor serial number
●Purchase date on invoice
●Conditions under which the problem occurred
●Error messages received
●Hardware configuration
●Name and version of the hardware and software you are using
30 Appendix A   Troubleshooting ENWW
 
						

							B Technical Specifications
NOTE:All performance specifications are provided by the component manufacturers. Performance
specifications represent the highest specification of all HPs component manufacturers typical level
specifications for performance and actual performance may vary either higher or lower.
LE1851w, LE1851wl, and LE1851wt Models
Table B-1  LE1851w, LE1851wl, and LE1851wt Specifications
Display
Type47 cm wide screen
TFT LCD18.5 inches wide screen
Viewable Image Size 47 cm diagonal 18.5 inch diagonal
Tilt -5 to 25°
Dimensions (include base)
Height
Depth
Width34.1 cm
19.0 cm
44.59 cm13.4 inches
7.5 inches
17.55 inches
Maximum Graphic Resolution 1366 x 768 (60Hz) analog input
Optimum Graphic Resolution 1366 x 768 (60Hz) analog input  
Text Mode 720 × 400
Dot Pitch 0.3 (H) × 0.3 (W) mm
Horizontal Frequency 24 to 83 kHz
Vertical Refresh Rate 48 to 76 Hz
Environmental Requirements Temperature
Operating Temperature
Storage Temperature5 to 35° C
-20 to 60° C41 to 95° F
-4 to 140° F
Relative Humidity 20 to 80%  
Power Source 100 – 240 VAC, 50/60 Hz  
Power pass-through support (LE1851wt model
only)5.1 V DC +/- 3%, 2A output  
Altitude:
Operating
Storage0 to 5000 m
0 to 12192 m0 to 16,400 feet
0 to 40,000 feet
Input Terminal One VGA connector with cable included  
ENWW LE1851w, LE1851wl, and LE1851wt Models 31
 
						

							LE2001w and LE2001wl Models
Table B-2  LE2001w and LE2001wl Specifications
Display
Type50.8 cm wide screen
TFT LCD20 inches wide screen
Viewable Image Size 50.8 cm diagonal 20 inch diagonal
Tilt -5 to 25°
Maximum Weight (Unpacked) 5.04 kg (LE2001w)
3.50 kg (LE2001wl)11.11 lbs. (LE2001w)
7.72 lbs. (LE2001wl)
Dimensions (include base)
Height
Depth
Width36.05 cm
20.6 cm
47.86 cm14.19 inches
8.11 inches
18.84 inches
Maximum Graphic Resolution 1600 x 900 (60Hz) analog input
Optimum Graphic Resolution 1600 x 900 (60Hz) analog input  
Text Mode 720 × 400
Dot Pitch 0.2835 (H) × 0.2835 (W) mm
Horizontal Frequency 24 to 85 kHz
Vertical Refresh Rate 48 to 76 Hz
Environmental Requirements Temperature
Operating Temperature
Storage Temperature0 to 35° C
-20 to 60° C32 to 95° F
-4 to 140° F
Relative Humidity 20 to 80%  
Power Source 100 – 240 VAC, 50/60 Hz  
Altitude:
Operating
Storage0 to 5000 m
0 to 12192 m0 to 16,400 feet
0 to 40,000 feet
Power Consumption (maximum) 28 watts (LE2001w)
24.6 watts (LE2001wl) 
Input Terminal One VGA connector with cable included  
32 Appendix B   Technical Specifications ENWW