Section 5: Troubleshooting
Symptom f The display is faint…
CAUSE / REMEDY: 1. Brightness and/or contrast may be set very low.
2.The source may be double terminated. Ensure the source is terminated only once.
3.The source (if
Symptom f The upper portion of the display is waving, tearing or jittering…
CAUSE / REMEDY: 1. This can sometimes occur with video or VCR sources. Check your source.
Symptom f Portions of the display are cut off or wrap to the opposite edge…
CAUSE / REMEDY: 1. Resizing and/or blanking may need adjustment.
Symptom f The display appears compressed (vertically stretched)…
CAUSE / REMEDY: 1. The frequency of the pixel sampling clock is incorrect for the current source.
2.Resizing, vertical stretch and positioning options may be improperly adjusted for the incoming source signal.
Symptom | f Data is cropped from edges | |
CAUSE / REMEDY: | 1. | Check settings for Blanking. |
| 2. | If incoming data is still missing from the image, reduce the image size to within |
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| the display area available in the projector. |
Symptom | f Display quality appears to drift from good to bad, bad to good… | |
CAUSE / REMEDY: | 1. | The source input signal may be of low quality. |
| 2. | The H or V frequency of the input may have changed at the source end. |
Symptom | f The display has suddenly frozen… | |
CAUSE / REMEDY: | 1. | If the screen blacks out inexplicably, it is possible that excessive voltage noise on |
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| the AC or ground input has interrupted the projector’s ability to lock on to a |
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| signal. Power down the projector and disconnect from AC. Then plug in again and |
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| power up as usual. |
Symptom | f Colors in the display are inaccurate… | |
CAUSE / REMEDY: | 1. | The color, tint, color space, color temperature and/or other settings may require |
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| adjustment. |
| 2. | Make sure you are using the proper channel for this source. |
| 3. | Check Color Wheel Calibration. |
Symptom | f The display is not rectangular… | |
CAUSE / REMEDY: |
| 1. Check leveling of the projector. Make sure that the lens surface and screen are |
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| as parallel to each other as possible. |
2.Is the vertical offset correct? Adjust as necessary using the vertical offset knob.
3.Check if Keystone is incorrectly set.
Symptom f The display is “noisy”…
CAUSE / REMEDY: 1. Display adjustment at your input source may be required. Adjust pixel tracking, phase and filter. Noise is particularly common on YPbPr signals from a DVD player. (If using a PC source, adjust using a
