Maintaining the Projector
Problem | Solution |
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When viewing text on the | The frequency of the projector does not match |
projected image, some of the | the frequency of the computer. |
characters seem darker or | 1 Press the Menu button on the remote con- |
thicker than others. | trol or the keypad on the projector. |
| 2 Select Picture from the menu. |
| 3 Select Frequency from the menu. |
| 4 Use the left and right direction keys on the |
| remote control or on the projector keypad |
| to adjust the frequency up or down until all |
| of the text characters are the same. |
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|
The image is noisy in video | Use a continuity tester to check for poor or |
mode. | open ground on the video cable. |
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|
The image lacks red, blue, or | Check the contrast adjustment. Also, check |
green color. | the VGA cable for broken or bent pins. |
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The bottom of the projected | Align the projector so that it directly faces the |
image is straight but the top | screen. See “Leveling the Image” on page 13. |
is crooked. |
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The remote control does not | Check that the IR (infrared) window on the |
work correctly. | front of the projector is not blocked. Check |
| that the red power LED is energized when any |
| button is pushed. If not, check the batteries in |
| the remote control. |
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|
The projected image is rolling | Check for broken or bent pins on the VGA |
vertically or horizontally. | cable. The problem may also be related to the |
| computer refresh rate. The projector is able to |
| synchronize with a refresh rate between |
| 55.378 and 85Hz. Any refresh rate outside |
| these limits will cause problems with the pro- |
| jected image. Check the refresh rate of the |
| computer and adjust it if necessary. |
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Table 7: Troubleshooting Procedures
40 English