HP Pavilion 23-inch Displays User Guide 1 - Page 34

Support and troubleshooting, Solving common problems, The following table lists possible problems

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B Support and 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 or video is flashing. Power cord is disconnected. Power button is turned off. 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. Video cable is improperly connected. Connect the video cable properly. Refer to Identifying Front Panel Controls on page 9 for more information. System is in sleep mode. Press any key on the keyboard or move the mouse to inactivate the screen blanking utility. Video card compatibility. Open the OSD menu and select the Input Control menu. Set Auto-Switch Input to Off and manually select the input. Image appears blurred, indistinct, or too dark. Brightness is too low. Open the OSD menu and select Brightness to adjust the brightness scale as needed. Check Video Cable is displayed on screen. Monitor video cable is disconnected. Connect the appropriate video signal cable between the computer and monitor. Be sure that the computer power is off while connecting the video cable. Input Signal Out of Range is displayed on screen. Video resolution and/or refresh rate are set higher than what the monitor supports. Change the settings to a supported setting (see Recognizing Preset Display Resolutions on page 26). The monitor is off but it did not seem to enter into a low-power sleep mode. The monitor's power saving control Open the OSD menu and select Power Control > Auto- is disabled. Sleep Mode and set auto-sleep to On. OSD Lockout is displayed. The monitor's OSD Lockout function is enabled. Press and hold the Menu button on the side panel for 10 seconds to disable the OSD Lockout function. Power Button Lockout is displayed. The monitor's Power Button Lockout function is enabled. Press and hold the power button for 10 seconds to unlock the power button function. 28 Appendix B Support and troubleshooting

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B
Support and 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 or video is
flashing.
Power cord is disconnected.
Connect the power cord.
Power button 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
Identifying
Front Panel Controls
on page
9
for more information.
System is in sleep mode.
Press any key on the keyboard or move the mouse to
inactivate the screen blanking utility.
Video card compatibility.
Open the OSD menu and select the
Input Control
menu.
Set
Auto-Switch Input
to
Off
and manually select the
input.
Image appears blurred,
indistinct, or too dark.
Brightness is too low.
Open the OSD menu and select
Brightness
to adjust the
brightness scale as needed.
Check Video Cable
is
displayed on screen.
Monitor video cable is
disconnected.
Connect the appropriate video signal cable between the
computer and monitor. Be sure that the computer power
is off while connecting the video cable.
Input Signal Out of Range
is displayed on screen.
Video resolution and/or refresh
rate are set higher than what the
monitor supports.
Change the settings to a supported setting (see
Recognizing Preset Display Resolutions
on page
26
).
The monitor is off but it did
not seem to enter into a
low-power sleep mode.
The monitor's power saving control
is disabled.
Open the OSD menu and select
Power Control
>
Auto-
Sleep Mode
and set auto-sleep to
On
.
OSD Lockout
is displayed.
The monitor's OSD Lockout
function is enabled.
Press and hold the Menu button on the side panel for 10
seconds to disable the OSD Lockout function.
Power Button Lockout
is
displayed.
The monitor's Power Button
Lockout function is enabled.
Press and hold the power button for 10 seconds to
unlock the power button function.
28
Appendix B
Support and troubleshooting