HP (Hewlett-Packard) L1745 Computer Monitor User Manual


 
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 switch on front panel of the
monitor is turned off.
Press the front panel power button.
Video cable is improperly
connected.
Connect the video cable properly. Refer to 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.
Image appears blurred,
indistinct, or too dark.
Brightness and contrast are too low. Press the (Minus) button on the front panel. If this does not
correct the image, press the Menu button to open the Basic
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 DVI-D signal cable to the DVI-D connector on
the computer, or the VGA signal cable to the VGA connector
on the computer. Be sure that the computer power is off
while connecting the video cable.
Out of Range. Set
Monitor to 1280 ×
1024 @ 60Hz is displayed
on screen.
HP Display LiteSaver doesn't
turn off the monitor screen.
Video resolution and/or refresh rate
are set higher than what the monitor
supports.
The Activity Extension time has not
elapsed.
Restart the computer and enter Safe Mode. Change the
settings to a supported setting (see
Table B-2 L1745 Model
Factory Preset Modes on page 33 ). Restart the computer
so that the new settings take effect.
The default Activity Extension value is set to 10 minutes. The
HP Display LiteSaver will wait to detect no input or
movement from the keyboard or mouse for 10 consecutive
minutes after the Display Off time has passed, before the
monitor enters into low-power mode. For example, if the
Display Off time is set to 5 minutes from the current time and
the Activity Extension is set to 10 minutes, the HP Display
LiteSaver will not actually turn off the display until 10 minutes
of inactivity has elapsed, even though the Display Off time
is 5 minutes from now.
30 Appendix A Troubleshooting ENWW