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Support And Troubleshooting; Solving Common Problems - HP HC270cr User Manual

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Support and troubleshooting

Solving common problems

The following table lists possible problems, the possible cause of each problem, and the recommended
Screen is blank or video is
Image appears blurred,
indistinct, or 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 display is off but it did
not seem to enter a low-
power mode.
OSD Lockout is displayed.
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 setting is too low.
Volume is turned down in the OSD.
Volume is muted.
Headphones are plugged in.
No audio source is selected.
No default PC playback device is
Display video cable is disconnected.
Video resolution and/or refresh rate
are set higher than the display
The display's power saving control is
The display's OSD Lockout function is
Connect the power cord.
Press the front power button.
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. For more information, see
Connecting the cables on page
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.
Open the OSD, select Audio Control, select Volume, and
adjust the volume scale.
If the mute speaker light is amber, the volume is muted. Press
the mute speaker button or the +/- (Plus/Minus) button.
Unplug the headphones. The speakers are disabled when the
headphones are plugged in.
Open the OSD menu and select Audio Control, and select the
audio source.
Open PC setting, select Sound, select Playback, and then set
HC270cr as the Default Device.
Connect the appropriate video signal cable between the
computer and display. Be sure that the computer power is off
while connecting the video cable.
Change the settings to a supported setting (see
resolutions on page
Open the OSD menu and select Power Control, select Auto-
Sleep Mode, and then set auto-sleep to On.
Press and hold the
button on the front of the display for
10 seconds to disable the OSD Lockout function.
Solving common problems
Preset display


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