Maintenance and Troubleshooting
Table 5-1. Troubleshooting Chart (continued)
Symptom |
| Possible Cause(s) | Solution |
|
|
|
|
The | • | Faulty or incorrect video | • Ensure that the HDMI |
Controller are both on, but |
| connection between the | output from the DHD |
there is no picture and |
| DHD Controller and the | Controller is properly |
| connected to the DVI IN | ||
appear. |
|
| input on the |
|
|
| (see Figure |
|
|
|
|
The display is on and menus | • | Incorrect source selection. | • Select the correct source. |
appear, but there is no | • | Source component is not | • Turn on the source |
picture. |
| turned on. | component. |
| • | Source component is | • Check connections from |
|
| connected incorrectly or | source component to DHD |
|
| not at all. | Controller. |
|
|
|
|
Image is too bright and/or lacks definition in the bright areas of the image.
• Contrast is set too high. | • Lower the contrast setting. |
Image appears “washed out” and/or dark areas appear too bright.
Colors in the image are swapped; for example, reds appear blue or vice versa.
•Brightness is set too high.
•The Red/Pr, Green/Y or Blue/Pb outputs from the source are connected to the wrong inputs on the DHD Controller.
•Lower the brightness setting.
•Ensure that the source outputs are connected to the correct DHD Controller input.
• | Tracking and Phase | • Adjust Tracking and Phase | |
“noisy.” |
| settings need adjustment. | settings (refer to Input |
|
|
| Position on page 45). |
|
|
|
|
Computer images do not dis- | • | The resolution and | • Select a compatible |
play correctly. |
| frequency of the video | resolution and vertical |
|
| card in the computer are | frequency (refer to |
|
| not compatible with the | Supported Timings on |
|
|
| page 70). |
|
|
|
|
The image is too large or too | • | Image size needs | • Adjust the image size (refer |
small. |
| adjusting. | to Input Position on |
|
|
| page 45 or Output Shift |
|
|
| on page 51). |
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|
58 |