Appendix B Support And Troubleshooting; Solving Common Problems - HP z34c 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 too dark.
No speaker volume or low
speaker volume.
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.
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Appendix B Support and troubleshooting

Possible Cause
Power cord is disconnected.
Power button is turned off.
Master power switch is off.
Video cable is improperly connected.
System is in sleep mode.
Video card compatibility.
Brightness is too low.
Volume control is turned down.
Volume is muted.
Headphones are plugged in.
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.
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.
Set the master power switch on the rear of the monitor to the
On position.
Connect the video cable properly. Refer to
cables on page 6 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.
Adjust the volume control on the bottom left of the front
panel.
Press up on the volume control to unmute the volume.
Unplug the headphones. The speakers are disabled when the
headphones are plugged in.
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
Connecting the
Recognizing
28).