Appendix B Support And Troubleshooting; Solving Common Problems; Button Lockouts - HP DreamColor Z Series User Manual

B Support and troubleshooting

Solving common problems

The following table lists possible problems, the possible cause of each problem, and the recommended
solutions.
Problem
Screen is blank or video is
flashing.
Image appears blurred,
indistinct, or too dark.
Check Video Cable is
displayed on screen.
Input Signal Out of Range 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.

Button lockouts

Holding down the power button or Menu button for ten seconds will lock out the functionality of that button.
You can restore the functionality by holding the button down again for ten seconds. This functionality is only
available when the display is powered on, displaying an active signal, and the OSD is not active.
Possible Cause
Power cord is disconnected.
Power button is turned off.
Video cable is improperly connected.
System is in sleep mode.
Video card compatibility.
Brightness is too low.
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. See
on page 8 for more information.
Press any key on the keyboard or move the mouse to
inactivate the screen blanking utility.
Open the OSD menu and select the Input Control menu. Set
Auto-Switch Input to Off and manually select the input.
Open the OSD menu and select Brightness to adjust the
brightness scale as needed.
Connect the appropriate video signal cable between the
computer and monitor. Be sure that the computer power is
off while connecting the video cable.
Change the settings to a supported setting (see
Preset Display Resolutions on page
Open the OSD menu and select Power Control > Auto-Sleep
Mode and set auto-sleep to On.
Press and hold the Menu button on the front panel for 10
seconds to disable the OSD Lockout function.
Press and hold the power button for 10 seconds to unlock the
power button function.
Solving common problems
Connecting the cables
Recognizing
28).
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