Apple 15AV manual Screen is dark or appears dim

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mIf the power indicator light is yellow or amber, one of the following may be the cause:

m The computer isn’t turned on.

m The monitor’s cable isn’t connected properly to the computer.

m The video circuitry or video card in your computer is not compatible with the monitor. Your Macintosh may need a video card or adapter to use the monitor. See “Do You Need a Video Card?” in Chapter 1.

m The computer and monitor are in sleep to conserve energy. See “Conserving Energy” in Chapter 2.

The screen is dark or appears dim.

mMake sure that your computer and monitor are turned on.

mMake sure that the power cord and the monitor cable are securely connected.

mIncrease the brightness (¤) and contrast (O) of the picture. See “Making Adjustments to the Picture” in Chapter 3.

mThe Energy Saver option may be activated. Move the mouse or press any key on the keyboard to reactivate the monitor. In approximately 20 seconds (or until you no longer hear the beep), the monitor is reactivated.

mA screen saver that darkens your screen may be activated. Move the mouse or press any key on the keyboard to reactivate the monitor.

The screen flickers.

mMake sure the monitor cable is connected firmly to the correct port on the back of the computer.

If you have a video card installed in your computer, the monitor cable should be plugged into the port for the video card.

If you do not have a video card installed in your computer, the monitor cable should be plugged into the monitor port on the back of your computer.

mThe flickering could be caused by interference from a nearby power line, a fluorescent light, or electrical device—for example, a radio, a microwave oven, or another computer. Try relocating nearby electrical devices or moving your computer and monitor.

34Chapter 4

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Contents Multiple Scan 15AV Display Apple Computer, Inc Contents Adjusting the Picture Communications regulation information Vcci statement Setting Up Important safety instructionsWhat about electromagnetic emissions? Getting ready to set up Your Multiple Scan 15AV Display at a glance Choosing a good location for your monitor Connecting the monitor’s base You’re finished connecting the basePositioning the monitor Shoulders relaxedDo you need a video card? Using more than one monitorDo you need an adapter? Connecting the monitor to your computer Monitor port icon Monitor cable Turning the monitor on Connecting headphones to your monitorTo turn on the monitor for the first time Installing the display software Disk’s icon appears on the desktopInstaller screen appears Page Using the Display Software About the Control StripWorking with the Control Strip Changing screen resolution Window opens showing all the control panelsMake the following choices in the control panel Other things you can do with the Monitors control panel Conserving energy What happens after you turn on the energy-saving feature Using Energy Saver with a screen saverUsing ColorSync ColorSync control panel appearsConfiguring the Control Strip Showing and hiding the Control StripTo show or hide the Control Strip, follow these steps Control Strip control panel appearsChange takes effect immediately Changing the font in Control Strip menus Box appearsChapter Adjusting the Picture Accessing the monitor’s controlsMaking adjustments to the picture Adjusting the brightness of the pictureAdjusting the contrast of the picture Adjusting the center of the pictureAdjusting the size of the picture Resetting controls to the factory settings Adjusting the sound volumeTips and Troubleshooting Care and cleaningTo clean the screen of the monitor TroubleshootingProtecting your monitor from theft Monitor’s power indicator light doesn’t come on Screen is dark or appears dim No colors appear on the screen After many hours of use, the screen image appears dim You can’t control the sound volume of a CD After you change the screen resolution, icons move Multiple scan Resolution range 640 x 480 to 1024 x Red, green, and blue signals separate syncAdjusted at the factory for the following standard modes Voltage Volts Frequency 50/60 hertz Hz Power Watts W maximumApproximately 30 pounds 13.5 kilograms Operating 20% to 95%Pin miniature D-type connector Pin Output signalApple Computer, Inc