A Troubleshooting
Solving common problems
The following table lists possible problems, the possible cause of each problem, and the recommended solutions.
Problem | Possible | Solution |
| cause |
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|
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|
No image is | Power cord is | Be sure the power cord is properly connected to the outlet. |
displayed. | not connected. | ● Verify that the outlet has power to it. |
|
| |
|
| ● Check that the fuse or breaker has not tripped or burned out. |
|
| See if the power switch is turned on. |
|
| Might need service. |
|
|
|
Power is on, | Screen needs | Adjust brightness and contrast again. |
power indicator | adjustment. | Backlight might need repair. |
is blue, but the |
| |
|
| |
screen appears |
|
|
extremely dark. |
|
|
|
|
|
Power indicator | Display is in | Move the mouse or press any key on the keyboard. |
is amber. | power saving | Turn off equipment and then back on. |
| mode. | |
|
| |
|
|
|
Out of Range | Input signal is | The signal from the media player/computer (video card) is out of the vertical or |
message | out of frequency | horizontal frequency range of the display. Adjust the frequency range by referring to the |
appears. | range. | specifications in this manual (maximum resolution: |
|
| |
|
| NOTE: Vertical |
|
| image should change multiple times every second like a fluorescent lamp. The vertical |
|
| frequency or refresh rate is the number of times the image displays per second. The unit |
|
| is measured in Hz. |
|
| Horizontal |
|
| When 1 is divided by the horizontal interval, the number of horizontal lines displayed |
|
| every second can be tabulated as the horizontal frequency. The unit is measured in kHz. |
|
|
|
Check signal | Signal cable is | The signal cable between the media player/computer and display is not connected. |
cable message | not connected. | Make sure that the signal cable is properly connected. |
appears. |
| |
|
| |
|
| Press the INPUT button on the remote control to check the input signal. |
|
|
|
Unknown | Display driver is | Install the display driver, which is provided with the display or download from the HP |
Product | not installed. | website www.hp.com. |
message |
| See if the Plug and Play function is supported by referring to the video card user manual. |
appears when |
| |
|
| |
the display is |
|
|
connected. |
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46 Appendix A Troubleshooting | ENWW |