Appendix A Troubleshooting; Solving Common Problems - HP L1706i User Manual

A Troubleshooting

Solving Common Problems

The following table lists possible problems, the possible cause of each problem, and the recommended
solutions.
Problem
Screen is blank.
Image appears blurred,
indistinct, or too dark.
Image is not centered
Check Video Cable is
displayed on screen.
Input Signal Out of Range.
Change Settings to 1280 x
1024 @ 60Hz (17" and 19"
4:3 models) OR Input
Signal Out of Range.
Change Settings to 1440 x
900 @ 60Hz (19" wide panel
models) is displayed on
screen.
HP Display LiteSaver
doesn't turn off the monitor
screen.
32

Appendix A Troubleshooting

Possible Cause
Power cord is disconnected.
Power switch on front panel of the
monitor is turned off.
Master power switch on rear panel
of the monitor is turned Off.
Video cable is improperly
connected.
Screen blanking is active.
Brightness and contrast are too low. Press the
Position may need adjustment.
Monitor video cable is
disconnected.
Video resolution and/or refresh rate
are set higher than what the monitor
supports.
The Activity Extension time has not
elapsed.
Solution
Connect the power cord.
Press the front panel power button.
Turn the master power switch to On.
Connect the video cable properly. Refer to Chapter 3,
Setting Up the Monitor on page 5
Press any key on the keyboard or move the mouse to
inactivate the screen blanking utility.
−(Minus) button on the front panel. If this does
not correct the image, press the
OSD Menu, and adjust the brightness and contrast scales
as needed.
Press the Menu button to access the OSD menu. Select
Image Control/Horizontal Position
adjust the horizontal or vertical position of the image.
Connect the VGA signal cable from the computer to the
VGA connector on the monitor. Be sure that the computer
power is off while connecting the video cable.
Restart the computer and enter Safe Mode. Change the
settings to a supported setting (see
Display Resolutions on page
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
for more information.
Menu button to open the
or Vertical Position to
Recognizing Preset
37). Restart the computer