HP DreamColor LP2480zx Professional manual Troubleshooting, Solving Common Problems

B 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.	Power cord is disconnected.	Connect the power cord.
	Power button on front panel of the	Press the front panel power button.
	monitor is turned off.	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	Connect the video cable properly. Refer to Setting Up the
	connected.	Monitor on page 7 for more information.
	Screen blanking is active.	Press any key on the keyboard or move the mouse to
		inactivate the screen blanking utility.
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,	Brightness is too low.	Press the – (minus) button on the front panel. If this does
indistinct, or too dark.		not correct the image, press the Menu button to open the
		OSD Menu, and adjust the brightness scale as needed.
Image is not centered	Position may need adjustment.	Press the Menu button to access the OSD menu. Select
		Image Control/Horizontal Position or Vertical Position to
		adjust the horizontal or vertical position of the image.
Check Video Cable is	Monitor video cable is	Connect the appropriate video signal cable between the
displayed on screen.	disconnected.	computer and monitor. Be sure that the computer power is
		off while connecting the video cable.
Input Signal Out of Range,	Video resolution and/or refresh rate	Restart the computer and enter Safe Mode. Change the
Change Settings to 1920 x	are set higher than what the monitor	settings to a supported setting (see Recognizing Preset
1200 – 60Hz is displayed on	supports.	Display Resolutions on page 46). Restart the computer
screen.		so that the new settings take effect.
The monitor is off but it did	The monitor's power saving control	Check the monitor's OSD menu setting for power saving
not seem to enter into a low-	is disabled.	enable/disable controls. The control should be set to
power sleep mode.		enable to allow the monitor to enter into low-power modes.
OSD Lockout is displayed.	The monitor's OSD Lockout	Press and hold the Menu button for 10 seconds to disable
	function is enabled.	the OSD Lockout function.
Power Button Lockout is	The monitor's Power Button	Press and hold the power button for 10 seconds to unlock
displayed.	Lockout function is enabled.	the power button function.

42 Appendix B Troubleshooting