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A Troubleshooting
Solving Common Problems
The following table lists possible problems, the possible cause of each problem, and the recommended solutions.
Problem | Possible Cause | Solution |
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No image is displayed. | Power cord not connected. | Be sure the power cord is properly |
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| connected to the outlet. |
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| ● Verify that the outlet has power to |
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| it. |
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| ● Check that the fuse or breaker has |
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| not tripped or burned out. |
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| See if the power switch is turned on. |
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| May need service. |
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Power is on, power indicator is blue, but | Screen needs adjustments. | Adjust brightness and contrast again. |
the screen appears extremely dark. |
| Backlight may need repair. |
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| |
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Power indicator is amber. | Monitor in power saving mode. | Move the mouse or press any key on |
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| the keyboard. |
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| Turn off equipment and then back on. |
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Out of Range message appears. | Input signal is out of frequency range. | The signal from the PC (video card) is |
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| out of the vertical or horizontal |
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| frequency range of the monitor. Adjust |
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| the frequency range by referring to the |
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| specifications in this manual (maximum |
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| resolution: RGB - 1920 x 1080 @ 60Hz; |
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| HDMI - 1920 x 1080 @ 60Hz). |
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| NOTE: Vertical Frequency - to enable |
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| the user to watch the monitor display, |
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| screen image should be changed tens |
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| of times every second like a fluorescent |
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| lamp. The vertical frequency or refresh |
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| rate is the times of image display per |
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| second. The unit is measured in Hz. |
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| Horizontal Frequency - the horizontal |
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| interval is the time to display one |
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| vertical line. When 1 is divided by the |
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| horizontal interval, the number of |
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| horizontal lines displayed every second |
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| can be tabulated as the horizontal |
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| frequency. The unit is measured in kHz. |
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ENWW | Solving Common Problems 33 |