Appendix
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| – The end of lamp life is approaching. Replace the lamp with a new one promptly. |
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| appears on the screen | (See page 68) |
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| When a filter cartridge (supplied) has been installed in the projector; |
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| – The filter is out of scroll. Replace the filter cartridge with a new one promptly. |
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| (See pages |
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| appears on the screen |
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| – Adjust the focus of the projector. |
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| – Check Projection Lens to see if it needs cleaning. |
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| The image is out of focus. | Note: Moving the projector from a cool temperature location to a warm temperature |
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| location may result in moisture condensation on Projection Lens. In such cases, |
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| leave the projector OFF and wait until condensation evaporates. |
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| – Projecting from excessive slant angle to the screen may cause keystone distortion and |
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| partial imperfect focus. |
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| – Check if “Contrast” or “Brightness” are adjusted properly. (See page 46) |
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| – Check if “Image level” is selected properly. (See pages 39, 43) |
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| The image is not bright | – Check the Lamp control function. ( See “SETTING” section on page 50) |
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| – Check the Lamp 1/2 replace indicators. If it lights, the end of lamp life is approaching. |
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| enough. |
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| Replace the lamp with a new one promptly. (See page 68) |
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| – The image is darker when 1 lamp mode is selected, compared with 2 lamp mode. |
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| Check the lamp mode at SETTING section. (See page 50) |
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| The color is strange. | – Check the Input signal, color system, video system, or computer system mode. |
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| The image is Left/Right | – Check the Ceiling / Rear function. (See pages 41, 45) |
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| reversed. |
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| The image is Top/Bottom | – Check the Ceiling function. (See pages 41, 45) |
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| reversed. |
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| The image is distorted or | – Check “PC Adjust” menu or “ Screen” menu and adjust them. |
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| runs off. |
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| Auto PC adjustment | – Check the Input signal. Auto PC Adjustment function cannot work when 480p, 575p, |
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| 720p, 480i, 575i, 1035i, 1080p, or 1080i is selected or when the digital signal is input |
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| function does not work. |
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| into DVI terminal. (See page 36) |
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| Some displays are not | – Check the Display function (see page 49). |
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| seen during the operation. |
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| The setting does not | – Make sure you selected “Store” after adjusting settings. Some settings cannot be |
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| remain after turning off |
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| stored if not registered with “Store”. |
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| power. |
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| Power management | – Power management function cannot work while “Freeze” function is running or the |
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| function does not work. | shutter is closed. |
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| Image disappears | – Check the power management function in the Setting. The power management is set |
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| automatically. | to "On" at the factory. |
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| Capture function does not | – Check the connection to see if there is signal. |
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| work. |
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| Some menus cannot be | – Each of the Video Input and Computer Input has a limit on selectable menus. |
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| selected. |
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74 | DHD800 User Manual | |||
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