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Table 3-2. Troubleshooting
Problem | Possible cause | Suggested action | Reference | ||
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The power | The video signal cable | Be sure the video cable is | “Connecting and | ||
indicator is | is loose or | connected with the | turning on your | ||
green, but there | disconnected from the | system properly. | monitor” on page | ||
is no image. | system or monitor. |
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| The monitor | Adjust the brightness and | “Adjusting your | |
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| brightness and | contrast setting on the | monitor image” on | |
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| contrast are at the | OSD menu. | page | |
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| lowest setting. |
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One or more of | This is a characteristic | If there are more than five | Appendix A, | ||
the pixels appear | of the LCD | pixels missing, contact | “Service and | ||
discolored | technology and is not | the Support Center. | Support,” on page | ||
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| an LCD defect. |
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• | Fuzzy lines | • | Image setup has | Adjust the resolution | “Adjusting your |
| in text or a |
| not been | settings on your system | monitor image” on |
| blurry |
| optimized | to match the native | page |
| image. | • | Your system | resolution for this | “Manual image |
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| monitor: 1440 x 900 at 60 | |||
• | Horizontal |
| Display | ||
| Hz. | setup” | |||
| or vertical |
| Properties setting | ||
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| lines |
| have not been | Perform automatic image | “Selecting a |
| through the |
| optimized. | setup. If automatic image | supported display |
| image. |
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| setup does not help, | mode” on page |
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| perform manual image |
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| setup. |
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| When working in the | See the Advanced |
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| native resolution, you | section of your |
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| may find additional | system’s display |
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| improvements by | properties. |
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| adjusting the Dots Per |
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| Inch (DPI) setting on your |
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| system. |
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Manual image setup
If automatic image setup does not establish the image that you prefer, perform manual image setup.
Note: Have your monitor powered on for about 15 minutes, until the monitor warms up.
1.Press at the bottom of the monitor to open the OSD menu.
2.Use or
to select
and press
to access.
3.Use or
to select Clock and Phase adjustment.
•Clock (pixel frequency) adjusts the number of pixels scanned by one horizontal sweep. If the frequency is not correct, the screen shows vertical stripes and the picture does not have the correct width.
•Phase adjusts the phase of the pixel clock signal. With a wrong phase adjustment, the picture has horizontal disturbances in light picture.
4.When the image no longer looks distorted, save the Clock and Phase adjustments.
5. Press | to leave the OSD menu. |