Appendix B Troubleshooting; Solving Common Problems - HP LP2480ZX User Manual

B Troubleshooting

Solving Common Problems

The following table lists possible problems, the possible cause of each problem, and the recommended
solutions.
Problem
Screen is blank.
Monitor will not turn on.
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 1920 x
1200 – 60Hz is displayed on
screen.
The monitor is off but it did
not seem to enter into a low-
power sleep mode.
OSD Lockout is displayed.
Power Button Lockout is
displayed.
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Appendix B Troubleshooting

Possible Cause
Power cord is disconnected.
Power button on front panel of the
monitor is turned off.
Video cable is improperly
connected.
Screen blanking is active.
Master power switch on rear panel
of the monitor is turned Off.
Brightness is too low.
Position may need adjustment.
Monitor video cable is
disconnected.
Video resolution and/or refresh rate
are set higher than what the monitor
supports.
The monitor's power saving control
is disabled.
The monitor's OSD Lockout
function is enabled.
The monitor's Power Button
Lockout function is enabled.
Solution
Connect the power cord.
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.
Connect the video cable properly. Refer to
Monitor on page 7 for more information.
Press any key on the keyboard or move the mouse to
inactivate the screen blanking utility.
Turn the master power switch to On.
Press the – (minus) button on the front panel. If this does
not correct the image, press the
OSD Menu, and adjust the brightness scale 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 appropriate video signal cable between the
computer and 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.
Check the monitor's 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.
Press and hold the Menu button for 10 seconds to disable
the OSD Lockout function.
Press and hold the power button for 10 seconds to unlock
the power button function.
Setting Up the
Menu button to open the
or Vertical Position to
Recognizing Preset
46). Restart the computer