Dukane 28A8757 Shutting down the projector, Troubleshooting your setup, Screen Save, Power Save

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Shutting down the projector

The projector automatically displays a black screen after no active source is detected for 30 minutes. This black screen helps preserve the life of the pro- jector. The image returns when an active source is detected or a remote or keypad button is pressed.

Screen Save

You can make the black screen appear after five minutes by turning on Screen Save in the Settings>System menu. See page 32. There are six time options for the Screen Save feature. They range from five minutes to 30 min- utes with five minute intervals.

Power Save

The projector also has a Power Save feature that automatically turns the lamp off after no signals are detected for 20 minutes. After 10 additional minutes with no signal, the projector powers down. If an active signal is received before the projector powers down, the image is displayed. You must press the Power button to display an image after 30 minutes have passed. When Power Save is enabled, Screen Save is disabled. See page 31.

Turning off the projector

To turn off the projector, press the power button and verify that you want to turn the projector off by pressing the power button again within 3 seconds. You can cancel the shutdown by not pressing the power button a second time. The lamp turns off and the LED blinks green for 1 minute while the fans continue to run to cool the lamp. When the lamp has cooled, the LED lights green and the fans stop. Unplug the power cable to completely power off the projector.

Troubleshooting your setup

If your image appears correctly on the screen, skip to the next section (page 23). If it does not, troubleshoot the setup.

The LED on top of the projector’s keypad indicates the state of the projector and can help you troubleshoot.

Table 1: LED behavior and meaning

LED color/behavior

Meaning

 

 

solid green

The projector is plugged in, or the projec-

 

tor has been turned on and the software

 

has initialized. The projector has been

 

turned off and the fans have stopped.

 

 

blinking green

The power button has been pressed and

 

the software is initializing, or the projec-

 

tor is powering down and the fans are

 

running to cool the lamp.

 

 

blinking red

A fan or lamp failure has occurred. Make

 

sure the vents aren’t blocked (see

 

page 20).Turn off the projector and wait

 

one minute, then turn the projector on

 

again. If the projector has been working

 

for 2000 hours or more (page 35), replace

 

the lamp and reset the lamp timer.

 

 

solid red

An unidentifiable error.

 

 

The following tables show common problems. In some cases, more than one possible solution is provided. Try the solutions in the order they are pre- sented. When the problem is solved, you can skip the additional solutions.

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Contents Audio Visual Products USERS MANUAL MODEL 28A8757Page Safety Certifications Remote Control WarningDeclaration of Conformity TrademarksTable of Contents Important Operating ConsiderationsIncluded items IntroductionCables Projector components and features networkRequired computer connections Connecting a computerOptional computer connections nector on the projector Displaying a computer image ? No startup screen? Get help on pageFirst-time projector use with Windows Skip this page if you did not connect a USB mouse cable For WindowsThe Wizard launches three times For Windows 2000, Windows ME, and Windows XPAdjusting the image Standard video connections Connecting a video deviceOptional video connections Displaying a video image press Poweradjust distance elevatorand sharpness are produced Troubleshooting your setup Shutting down the projectorPower Save Screen SaveSource troubleshooting ProblemSolution Plug power cable in and remove lens capSignal No computer image, just the words “Signal out of range”range For a laptop, disable laptop monitor or turn-on dual- display mode Remote control not controlling my computer’s mouseImage fuzzy or cropped Image clear and not croppedProjector troubleshooting Adjust keystone on keypadAdjust Sharpness in the PictureAdvanced Image not squareTurn off Ceiling in SettingsSystem menu Turn off Rear in SettingsSystem menuImage does not fit 169 screen Image upside down Image reversed left to rightAdjust color, tint, color temperature COLORCOLOR Change Video Standard inMove projector, adjust zoom, adjust height adjust horizontal or vertical position in PictureAdvanced menuLamp must be replaced page Lamp turns onUsing the keypad buttons Regarding this projectorUsing the remote control Troubleshooting the remoteTroubleshooting audio Using the audioConnecting external speakers Presentation features Optimizing computer imagesOptimizing video images Customizing the projectorUsing the menus Picture menu Presets The provided Presets optimize the projector for displaying com Advanced settings Settings menu Blank shows an empty screen Mute turns off all sound Service Maintenance Cleaning the lensReplacing the projection lamp Resetting the lamp timer WARNINGSUsing the security lock computer inSpecifications AccessoriesAppendix DimensionsProjected image size Optional AccessoriesDistance to screen DiagonalNumerics Page USB, using your mouse Video connector 11 video images optimizingtemperature limits 38 Tint 13 Troubleshooting 14 VESA port 6 Video button 12 video connections optional 11 standardSERVICE & REPAIR FIVE-YEAR LIMITED WARRANTYLEGAL INFORMATION Parts & Service 676-2486584-5156 676-2487