Epson Powerlite 821p Multimedia Projector Users Guide

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3. Connect the other end to an electrical outlet. 
The 
Power light on top of the projector turns orange, indicating 
that the projector is receiving power but not yet turned on. Wait 
until the light stops flashing but stays orange.
4. Turn on your computer or video source if you have not already. 
5. Press the P 
Power button on top of the projector to turn it on. 
(You can also press the P 
Power button on the remote control.)
The projector beeps and the 
Power light flashes green as the...

32ProjectingWhen you’re done with your presentation, shut down the projector as 
described on page 41. Shutting down the projector correctly prevents 
premature lamp failure and possible damage from overheating.
Selecting the Image Source
If you have only one device connected to the projector, the projector 
should detect it automatically. If you have more than one device 
connected (for example, if you’ve connected both a computer and 
DVD player), you may have to switch between image sources. If you...

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What To Do If You See a Blank Screen
If you see a blank screen or a blue screen with the message No Signal 
after turning on your computer or video source, try the following:
■Make sure the cables are connected correctly, as described in 
Chapter 1.
■Make sure the Power light is green and not flashing and the lens 
cap is off. 
■Make sure you’ve selected the correct image source; see page 32. 
Allow a few seconds for the projector to sync up after pressing the 
button. 
■Check the Signal...

34Projecting
If you’re using a Macintosh with OS X:
You may need to set up your system to display on the projector screen 
as well as the LCD screen. Follow these steps:
1. From the Apple menu, select 
System Preferences, then click 
Displays.
2. Select VGA Display or Color LCD, click Arrangement or 
Arrange, and make sure Mirror Displays is checked.
If you’re using a Macintosh with OS 9.x or earlier:
You may need to set up your system to display on the projector screen 
as well as the LCD screen. Follow...

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If the Arrange option isn’t available, you may need to select one of 
the Simulscan resolution settings:
1. Click the 
Monitor icon, if necessary. 
2. Select a 
Simulscan resolution, as shown. (Allow a few seconds 
for the projector to sync up after making the selection.)
Adjusting the Image
Once you see your image, you’ll need to make certain adjustments:
■To focus or zoom your image, see the next section. 
■If the image is too high or too low, you can reposition it. 
See page 37.
■If the...

36Projecting
Focusing and Zooming Your Image
Rotate the focus ring to sharpen the image.
Rotate the zoom ring to reduce or enlarge the image.
You can also change the image size by moving the projector closer to 
or farther away from the screen. You can use the 
E-Zoom buttons on 
the remote control to zoom in on a portion of the image. See page 45 
for instructions. 
Focus ring
Zoom ring 

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Adjusting the Height of Your Image
If the image is too low, you can raise it by extending the projector’s 
front adjustable foot.
 
1. Stand behind the projector. Press up on the blue foot release 
lever and lift the front of the projector to extend the front 
adjustable foot.
2. Once the image is positioned where you want, release the lever to 
lock the foot in position.
3. To fine-tune the height of the image, 
rotate the feet at the back of the 
projector.
If the image is no longer...

38Projecting
Adjusting the Image Shape
The projector automatically corrects images that are distorted when 
the projector is tilted up or down (up to a 15° tilt). The Keystone 
window appears on the screen while the projector makes the 
correction. If the projected image still isn’t rectangular or has a 
“keystone” shape, do one or more of the following:
■If your image looks like   or  , you’ve placed the 
projector off to one side of the screen, at an angle. Move it directly 
in front of the center of...

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You can also make keystone adjustments using the projector’s Setting 
menu. See page 58.
Adjusting the Brightness
The brightness of an image depends on the source you are projecting 
and the amount of light in the room. If the image is too bright or not 
bright enough, here are two ways you can adjust it:
■Change the Brightness setting in the Image menu. See page 54.
■Select Low or High for the Brightness Control option in the 
Setting menu. (See page 58.) Low brightness mode extends the...

40ProjectingThe following table lists the six color modes available.  
To change the color mode, press the 
Color Mode button on the 
remote control until you see the mode you want. The currently 
selected setting appears in the upper right corner of the screen. You 
can also use the projector menu system to change the color mode in 
the Image menu (see page 54).
Color mode Description
Dynamic Best for projecting movies with vivid color in bright 
rooms. This is the default mode for projecting from...