Troubleshooting
Symptom |
| Probable cause | Corrective action | Page |
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A part of image is | • | Was the DIGITAL ZOOM T button on | • Press the PRESET button to restore the | 12, 37 |
magnified. |
| the remote control pressed? | original video screen. |
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Color is poor or | • | Is picture quality (color density, etc.) | • Adjust picture quality on the menu. | 49 |
unstable. |
| adjusted correctly? |
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| • Is the correct color system selected? | • Set the color system to AUTO or to the | 45 | |
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| correct dedicated color system. |
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| • Are signals (scanning frequency, etc.) | • Check if the signal is appropriate (scanning | 22 | |
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| of the connected devices appropriate? | frequency, etc.), and input the appropriate |
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| signal. |
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The upper part of the | • | While computer system signal is input, | • Input separate sync signals for vertical sync | 11, 28 |
video image bows or |
| isn’t a sync signal for composite sync | (V) and horizontal sync (H) signals. |
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distorts. |
| (Cs) or G on sync being input? |
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| • Isn’t signal with much jitter or skew | • Input signals with little jitter or distortion. | – | |
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| distortion being input from a video | Use a TBC or a device with a |
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| deck? |
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Video image | • | Is video picture turned off by pressing | • Turn on video picture by pressing the HIDE | 10, 12, |
suddenly go out. |
| the HIDE button? | button. | 35 |
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Remote control unit | • | Are batteries installed correctly? | • Match the polarities of batteries correctly (+ | 14 |
does not work. |
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| to + and – to |
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| • | Are batteries exhausted? | • Replace with new batteries. | 14 |
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| • Is there a shielding object between the | • Remove any shielding objects. | 20 | |
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| remote control unit and the remote |
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| sensor? |
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| • Is the distance too long? | • Use the remote control unit at a nearer | 20 | |
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| point. |
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| • Is either side of remote cable | • Firmly insert the remote cable when using | 21 | |
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| disconnected? | the remote control unit as the wired one. |
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*This device uses a computer. External noise may cause it to malfunction. If this happens, turn the power off, remove the electric plug from the wall outlet. Then insert the electric plug back into the wall outlet, turn the power back on and check the operation.
■When warning indication is shown by the blinking indicators:
The warning status will be notified by the combination lighting of the projector’s indicators.
For the warning contents and the action to be taken, refer to “Warning Indication” on page 66.
■Maintenance
•Stains on the cabinet
These should be wiped off with a soft cloth. If the cabinet is heavily stained, wipe it with a cloth soaked in
•Since the cabinet may deteriorate in quality, become damaged, or show paint peeled, note the following:
–Do not wipe with rough cloth.
–Do not wipe vigorously.
–Do not wipe with thinner or benzene.
–Do not apply any volatile substance such as insecticides.
–Do not allow any rubber or vinyl article to remain in contact with the cabinet for a long time.
•Stains on the lens
These should be cleaned off with commercially available lens blowers or lens cleaning paper (for cleaning glasses and cameras).
Do not use liquid cleaning agents. This could cause the surface coating to be removed. Do not rub, scratch or hit the lens as its surface is prone to damage.
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