| 7. Appendix | |
Common Problems & Solutions (See also "Power/Status/Lamp Indicator" on page 56.) | ||
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| Problem | Check These Items |
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| Does not turn on | • Check that the power cable is plugged in and that the power button on the projector cabinet or the remote |
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| control is on. See pages 22 and 23. |
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| • Ensure that the lamp cover is installed correctly. See page 54. |
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| • Check to see if the projector has overheated or the lamp usage exceeds 2100 hours (up to 3100 hours : Eco |
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| mode). If there is insufficient ventilation around the projector or if the room where you’re presenting is par- |
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| ticularly warm, move the projector to a cooler location. |
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| • The lamp may fail to light. Wait a full minute and then turn on the power again. |
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| • The lamp has reached the end of its usable life. Replace the lamp. |
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| Will turn off | • Ensure that the Power Management is off. See page 48. |
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| No picture | • Use the VIDEO, the |
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| control to select your source (Computer, Video or |
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| button again. |
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| • Ensure your cables are connected properly. |
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| • Use menus to adjust the brightness and contrast. See page 41. |
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| • Remove the lens cap. |
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| • Reset the settings or adjustments to factory preset levels using the “Default” in the Menu. See page 50. |
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| • Enter your registered keyword if the Security function is enabled. See page 45. |
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| • When using with a notebook PC, be sure to connect between the projector and the notebook PC before turning |
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| on the power to the notebook PC. In most cases signal cannot be output from RGB output unless the notebook |
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| PC is turned on after connecting with the projector. |
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| * If the screen goes blank while using your remote control, it may be the result of the computer's screen- |
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| saver or power management software. |
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| • See also the next page. |
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| Picture suddenly | • When one of the following happens, the Lamp mode automatically changes from Normal to Eco. |
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| becomes dark | * When there are no signals (blue or black screen) → To return to the Normal mode, select another available |
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| source. |
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| * When the image is muted using the |
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| again to return to the Normal mode. |
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| * When the room where you' re presenting is particularly warm → Move the projector to a cooler location. |
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| Color tone or hue is | • Check if an appropriate color is selected in "Wall Color". If so, select an appropriate option. See page 40. |
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| unusual | • Adjust "Hue" in "Picture". See page 41. |
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| Image isn’t square to | • Reposition the projector to improve its angle to the screen. See page 27. |
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| the screen | • Use the Keystone correction function to correct the trapezoid distortion. See page 29. |
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| Picture is blurred | • Adjust the focus. See page 28. |
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| • Reposition the projector to improve its angle to the screen. See page 27. |
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| • Ensure that the distance between the projector and screen is within the adjustment range of the lens. See |
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| pages 13 for VT670/VT570/VT470 and 14 for VT47. |
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| • Condensation may form on the lens if the projector is cold, brought into a warm place and is then turned on. |
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| Should this happen, let the projector stand until there is no condensation on the lens. |
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| Image is scrolling | • Use the VIDEO, the |
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| vertically, horizontally | control to select your source (Video, |
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| or both | See page 25. |
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| • Adjust the computer image manually with the Horizontal/Vertical in the “Advanced → Page 2”. See page 48. |
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| Remote control does | • Install new batteries. |
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| not work | VT670/VT470: AAA2. See page 10. |
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| VT570/VT47: Lithium coin cell (CR2032). See page 12. |
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| • Make sure there are no obstacles between you and the projector. |
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| • Stand within 22 feet (7 m) of the projector. pages 10 for VT670/VT470 and 12 for VT570/VT47. |
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| Indicator is lit or | • See the POWER/STATUS/LAMP Indicator on page 56. |
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| blinking |
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| Cross color in RGB | • Press the AUTO ADJ. button on the projector cabinet or the remote control. See page 31. |
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| mode | • When “Off” is selected in Auto Adjust, adjust the computer image manually with Clock/Phase in “Advanced → |
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| Page 2” in the menu. See page 48. |
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