Apple 15AV manual After many hours of use, the screen image appears dim

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The screen appears greenish, the screen image is unreadable, or there is “snow” on the screen.

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.

After many hours of use, the screen image appears dim.

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

Over time, you experience eyestrain.

mAdjust the screen contrast (O). In a bright room, contrast is usually best set at maximum; in a dim room, lower contrast is usually more comfortable. See “Adjusting the Contrast of the Picture” in Chapter 3. Also, be sure to take occasional breaks to focus your eyes on a distant object.

You don’t hear any sound from your computer.

mMake sure sound is turned on and make sure your sound options are set correctly in the Control Strip or control panel for sound. See “About the Control Strip” in Chapter 2 and see the on-screen help that came with your computer or system software upgrade kit.

mAdjust the sound volume on your monitor. See “Adjusting the Sound Volume” in Chapter 3.

mCheck whether headphones are plugged into the headphone port (marked by f) on the monitor. If so, you will be able to hear sound only in the headphones.

mCheck whether something is plugged into the sound output port (marked by -) on the back panel of your computer. The computer’s internal speaker is turned off whenever a cable is connected to the sound output port. If a sound cable is connected between the computer and monitor, you

can hear sound from the monitor’s speakers or from headphones connected to the monitor’s headphone port (marked by f). For more information, see Chapter 1, “Setting Up.”

You can’t find the Control Strip.

mYou may have hidden the Control Strip. Open the Control Strip control panel and click the button labeled Show Control Strip.

36Chapter 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 relaxedUsing more than one monitor Do you need a video card?Do you need an adapter? Connecting the monitor to your computer Monitor port icon Monitor cable Connecting headphones to your monitor Turning the monitor onTo 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 appearsTo show or hide the Control Strip, follow these steps Configuring the Control StripShowing and hiding the Control Strip Control Strip control panel appearsChange takes effect immediately Changing the font in Control Strip menus Box appearsChapter Adjusting the Picture Accessing the monitor’s controlsAdjusting the contrast of the picture Making adjustments to the pictureAdjusting the brightness 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 cleaningTroubleshooting To clean the screen of the monitorProtecting 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