Sharp NP-UM383WL Users Manual - Page 110
Common Problems & Solutions, Power/Status/Light Indicator
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8. Appendix Common Problems & Solutions (→ "Power/Status/Light Indicator" on page 96.) Problem Check These Items Does not turn on or shut down • Check that the power cord is plugged in and that the power button on the projector cabinet or the remote control is on. (→ pages 11, 12) • Check to see if the projector has overheated. If there is insufficien ventilation around the projector or if the room where you are presenting is particularly warm, move the projector to a cooler location. • The light may fail to light. Wait a full minute and then turn on the power again. • Set [FAN MODE] to [HIGH ALTITUDE] when using the projector at altitudes approximately 5500 feet/1700 meters or higher. . Will turn off No picture • Ensure that the [OFF TIMER] or [AUTO POWER OFF] is off. (→ page 67, 74) • . Picture suddenly becomes dark Color tone or hue is unusual Image isn't square to the screen Picture is blurred Image is scrolling vertically, horizontally or both Remote control does not work Indicator is lit or blinking Cross color in RGB mode • Ensure your cables are connected properly. • Use menus to adjust the brightness and contrast. (→ page 59) • Reset the settings or adjustments to factory preset levels using the [RESET] in the Menu. (→ page 80) • Enter your registered keyword if the Security function is enabled. (→ page 34) • Be sure to connect the projector and notebook PC while the projector is in standby mode and before turning on the power to the notebook PC. • In most cases the output signal from the notebook PC is not turned on unless connected to the projector before being powered up. * If the screen goes blank while using your remote control, it may be the result of the computer's screen-saver or power management software. • See also the next page. • Check if the projector is in the Forced ECO mode because of too high ambient temperature. If this is the case, lower the internal temperature of the projector by selecting [HIGH] for [FAN MODE]� (→ page 71) • Check if an appropriate color is selected in [WALL COLOR]. If so, select an appropriate option. (→ page 66) • Adjust [HUE] in [PICTURE]. (→ page 59) • Reposition the projector to improve its angle to the screen. (→ page 15, 21) • Use the Keystone correction function to correct the trapezoid distortion. (→ page 22) • Adjust the focus. (→ page 18) • Reposition the projector to improve its angle to the screen. (→ page 15, 21) • Ensure that the distance between the projector and screen is within the adjustment range. (→ page 81) • Check the computer's resolution and frequency. Make sure that the resolution y ou are trying to display is supported by the projector� (→ page 106) • Adjust the computer image manually with the Horizontal/Vertical in the [IMAGE OPTIONS]. (→ page 61) • Install new batteries.(→ page 9) • Make sure there are no obstacles between you and the projector. • Stand within 22 feet (7 m) of the projector. (→ page 9) • See the POWER/STATUS/LIGHT indicator. (→ page 96) • Press the AUTO ADJ. button on the projector cabinet or the remote control. (→ page 24) • Adjust the computer image manually with [CLOCK]/[PHASE] in [IMAGE OPTIONS] in the menu. (→ page 60) For more information contact your dealer. 100
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