Epson Powerlite 77c Multimedia Projector Users Guide

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2
Projecting
Once you’ve set up the projector, you’re ready to turn it on, adjust 
the image, and give your presentation. 
Although you can operate the projector without it, the remote control 
lets you use additional features. See Chapter 3 for instructions on 
using the remote. This chapter covers the following:
■Turning on the projector and other equipment
■Adjusting the image
■Adjusting the volume
■Shutting down the projector 

32Projecting
Turning On Your Equipment
Make sure your projector and other equipment are set up and 
connected correctly, as described in Chapter 1. Then turn on your 
projector, as described below.
If you turn on your connected computer or video equipment before 
starting the projector, the projector automatically detects and displays 
the image source. If you turn on the projector first, or have multiple 
pieces of connected equipment, you may have to select the image 
source manually. See page 34....

Projecting33
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 
Power button on the remote control.)
The projector beeps and the power light flashes green as the...

34ProjectingTo focus and adjust the image, see page 37. If a projected image fails 
to appear, see “What To Do If You See a Blank Screen” on page 34.
When you’re done with your presentation, shut down the projector as 
described on page 42.
Selecting the Image Source
Selecting the image source lets you switch between images input from 
different pieces of equipment connected to the projector (such as a 
computer and DVD player). If you don’t see the image you want, 
press the 
Source Search button on the...

Projecting35
■Check the Signal menu to make sure the correct input source is 
selected. See page 58.
If you’re using a PC laptop:
■Hold down the Fn key and press the function key that lets you 
display on an external monitor. It may have an icon such as   
or it may be labelled 
CRT/LCD. Allow a few seconds for the 
projector to sync up after pressing it. Check your laptop’s manual 
or online help for details. 
On most systems, the   or 
CRT/LCD key lets you toggle 
between the LCD screen and the...

36Projecting
If you’re using a Macintosh laptop 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 
Display or Displays.
2. Select VGA Display or Color LCD, click Arrange or 
Arrangement, and make sure Mirror Displays is checked.
Click here
Select Mirror 
Displays 

Projecting37
Adjusting the Image
Once you see your image, you’ll need to make certain adjustments:
■To focus or zoom your image, see below or page 38.
■If the image is too high or too low, you can reposition it. 
See page 39.
■If the image isn’t square, see page 39.
■To adjust image brightness, see page 40.
■If a computer image displays incorrectly, see page 41.
■To change the color mode for your image and surroundings, see 
page 44.
You can make many other adjustments to the image—such as 
changing the...

38ProjectingPress the 
Wide button on the projector to enlarge the image, or the 
Tele button to reduce it.
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 47 
for instructions. 
Focusing and ZoomingYour Image 
(PowerLite 77c)
Rotate the focus ring to sharpen the image, and the zoom ring to 
reduce or enlarge the image.
You can also change the image...

Projecting39
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.
If the image is no longer rectangular after raising it, see the next 
section.
Adjusting the Image Shape
If the projector...

40Projecting
■If your image looks like   or  , you need to adjust the 
keystone correction value. Press the   or   buttons on the 
projector to correct the shape of the image. After correction, your 
image will be slightly smaller.
■On the PowerLite 77c, you may need to turn on Auto Keystone. 
See page 61 for instructions.
You can also make keystone adjustments using the projector’s Settings 
menu. See page 62.
Adjusting the Brightness
The brightness of an image depends on the source you are projecting...