Dukane 8774 User Manual page 118

Common Problems & Solutions (→ "Power/Status/Lamp Indicator" on page 107)
Problem
Does not turn on • Check that the power cable is plugged in and that the power button on the projector cabinet or the remote
• Ensure that the lamp cover is installed correctly. (→ page 105)
• Check to see if the projector has overheated. If there is insufficient ventilation around the projector or if the
• Check to see if the lamp usage exceeds 2100 hours (up to 3100 hours : Eco mode). If so, replace the lamp.
• The lamp may fail to light. Wait a full minute and then turn on the power again.
Will turn off • Ensure that the Power Management or Off Timer is off. (→ page 94, 96)
No picture • Use the SOURCE button on the projector cabinet or the VIDEO, the S-VIDEO, the COMPUTER 1, the COM-
• Ensure your cables are connected properly.
• Use menus to adjust the brightness and contrast. (→ page 71)
• Check to see if the image is muted. (→ page 34)
• Remove the lens cap.
• Reset the settings or adjustments to factory preset levels using the Reset in the Menu. (→ page 101)
• Enter your registered keyword if the Security function is enabled. (→ page 42)
• Be sure to connect the projector and notebook PC while the projector is in standby mode and before turning on
• See also the next page.
Color tone or hue is • Check if an appropriate color is selected in [Wall Color]. If not, select an appropriate option. (→ page 78)
unusual • Adjust [Hue] in [Adjust]. (→ page 71)
Image isn't square to • Reposition the projector to improve its angle to the screen. (→ page 27)
the screen • Use the 3DReform function to correct the trapezoid distortion. (→ page 29)
Picture is blurred • Adjust the focus. (→ page 28)
• Reposition the projector to improve its angle to the screen. (→ page 27)
• Ensure that the distance between the projector and screen is within the adjustment range of the lens. (→ page
• Condensation may form on the lens if the projector is cold, brought into a warm place and is then turned on.
Image is scrolling • Use the SOURCE button on the projector cabinet or the VIDEO, the S-VIDEO, the COMPUTER 1, the COM-
vertically, horizontally
or both
• Adjust the computer image manually with the [Clock]/[Phase] in [Adjust] → [Image Options]. (→ page 72)
Remote control does • Install new batteries. (→ page 9)
not work • Make sure there are no obstacles between you and the projector.
• Stand within 22 feet (7 m) of the projector. (→ page 9)
Indicator is lit or • See the POWER/STATUS/LAMP Indicator. (→ page 107)
blinking
Vertical stripes in RGB • Press the AUTO ADJUST button on the projector cabinet or the AUTO ADJ. button on the remote control. (→
mode
• Adjust the computer image manually with the [Clock]/[Phase] in [Adjust] → [Image Options].(→ page 72)
USB mouse does not • Make sure that your USB mouse is properly connected to the projector.
work
For more information contact your dealer.
Check These Items
control is on. (→ page 23, 24)
room where you are presenting is particularly warm, move the projector to a cooler location.
After replacing the lamp, reset the lamp hours used. (→ page 101)
PUTER 2, the COMPUTER 3 (LT380 only), COMPONENT, the VIEWER or the LAN button on the remote control
to select your source. (→ page 26)
the power to the notebook PC.
In most cases the output signal from the notebook PC is not turned on unless connectedto the projector be-
fore 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.
11)
Should this happen, let the projector stand until there is no condensation on the lens.
PUTER 2, the COMPUTER 3 (LT380 only), COMPONENT, the VIEWER or the LAN button on the remote control
to select your source (Video, S-Video, Computer, Component, Viewer or LAN). (→ page 26)
page 31)
The projector may not support some brands of a USB mouse.
108
8. Appendix