HP DreamColor Z27x User Guide 1 - Page 68

Support and Troubleshooting, Solving Common 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 Power cord is disconnected. flashing. 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 Setting Up the Monitor on page 5 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 Video Input menu. Set Input Auto-Switch Source to Disable and manually select the input. Monitor will not turn on. Master power switch on rear panel Turn the master power switch to On. of the monitor is turned Off. Image appears blurred, indistinct, or too dark. Brightness is too low. Open the OSD menu and select Color Space > Adjust Luminance to adjust the luminance 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 58). 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 Management > Auto- is disabled. Sleep and set auto-sleep to Enable. OSD Lockout is displayed. The monitor's OSD Lockout function is enabled. Press and hold the bottom Menu button 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. Bezel button LEDs are not on. By default, the Bezel button LEDs are set to fade out when not in use. To set the bezel button LEDs so that they are always on, open the OSD menu and select Menu and Message Control > Bezel Button Auto-Fade > Disable (Always On). Bezel button LEDs are always on but are too bright or too dim. Bezel button auto-fade has been turned off in the OSD and the brightness needs adjustment. Open the OSD menu and select Menu and Message Control > Bezel Button Brightness and adjust the brightness value. 60 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 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
Setting Up the
Monitor
on page
5
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
Video Input
menu.
Set
Input Auto-Switch Source
to
Disable
and manually
select the input.
Monitor will not turn on.
Master power switch on rear panel
of the monitor is turned Off.
Turn the master power switch to On.
Image appears blurred,
indistinct, or too dark.
Brightness is too low.
Open the OSD menu and select
Color Space
>
Adjust
Luminance
to adjust the luminance 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
58
).
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
Management
>
Auto-
Sleep
and set auto-sleep to
Enable
.
OSD Lockout
is displayed.
The monitor's OSD Lockout
function is enabled.
Press and hold the bottom Menu button 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.
Bezel button LEDs are not
on.
By default, the Bezel button LEDs
are set to fade out when not in
use.
To set the bezel button LEDs so that they are always on,
open the OSD menu and select
Menu and Message
Control
>
Bezel Button Auto-Fade
>
Disable (Always
On)
.
Bezel button LEDs are
always on but are too
bright or too dim.
Bezel button auto-fade has been
turned off in the OSD and the
brightness needs adjustment.
Open the OSD menu and select
Menu and Message
Control
>
Bezel Button Brightness
and adjust the
brightness value.
60
Appendix B
Support and Troubleshooting