Epson Powerlite 7800p Multimedia Projector Users Guide

Displaying and Adjusting the Image33
If you’re using OS 8.6 to OS 9.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 
Control Panels, then click 
Monitors or Monitors and Sound.
2. Click the Arrange icon.
3. Drag one monitor icon on top of the other. 
If the Arrange option isn’t available, you may need to select one of the 
Simulscan resolution settings:
1. Click the 
Monitor icon. 
2. Select a...

34Displaying and Adjusting the Image
Adjusting the Image
Once you see your image, you need to make certain adjustments:    
■To focus or zoom your image, see below. 
■If the image is too high or too low, you can reposition it. See 
page 35.
■If the image isn’t square, see page 36.
■If a computer image displays incorrectly, see page 39. 
If you need to fine-tune the image and/or sound, see Chapter 4.
Focusing and Zooming Your Image
Use the Focus ring on the projector to sharpen the image.
Use the 
Zoom...

Displaying and Adjusting the Image35
Adjusting the Height of Your Image
If the image is too low on the screen, you can use the front adjustable 
foot to raise it. 
1. Stand behind the projector. Press the blue foot release lever up 
and lift the front of the projector. 
2. Once the image is positioned where you want it, release the lever 
to lock the foot in position.
3. If necessary, you can fine-tune the height by turning the 
projector’s rear feet. 
Raising the projector causes the image to distort or...

36Displaying and Adjusting the Image
Adjusting the Image Shape
In most cases, you can maintain a square or rectangular image by 
placing the projector directly in front of the center of the screen with 
the base of the lens level with the bottom of the screen. 
Even if the projector is slightly tilted (within a range of 40° up or 
down), the projector has an automatic keystone correction function 
that detects and corrects vertical keystone distortion.
It takes about one second after projection starts...

Displaying and Adjusting the Image37
Using Keystone Correction
To adjust your image when it is wider on one side, do the following:
■Look at the shapes of the icons on the projector’s four Keystone 
buttons. Press the button whose icon is the mirror image of the 
shape of your screen image. Continue pressing the button until 
you are satisfied with the shape of the image.
■Or press the Menu button on the remote control, select the 
Setting menu, and press Enter. From the Setting menu, select...

38Displaying and Adjusting the ImageYou see this screen:
5. Press the 
Enter button to select the corner you want to adjust.
6. Use the  pointer button on the remote control (or the arrow 
buttons on the projector) to adjust the shape. 
7. Repeat steps 5 and 6 as needed to adjust any remaining corners. 
8. When done, press the 
ESC button on the remote control or 
projector’s control panel to exit the menu system.
If 
Quick Corner remains selected in the Keystone menu, the Quick 
Corner screen appears...

Displaying and Adjusting the Image39
Correcting Computer Images
If you’re connected to a computer and the image doesn’t look right, 
press the 
Auto button on the remote control (or the Auto/Enter 
button on the projector’s control panel). This automatically resets the 
projector’s tracking, sync, resolution, and position settings.
If vertical stripes appear in the projected image and the 
Auto button 
doesn’t correct the problem, hold down the 
Shift button on the 
projector’s control panel while...

40Displaying and Adjusting the Image
Projecting Images Without a Screen
Even if you don’t have a screen, you can project images onto surfaces 
like blackboards and colored walls without loss of image color. Your 
projector has a sensor that measures the conditions of the projection 
surface and automatically adjusts the colors and shading of your 
image. For example, if you’re projecting onto a surface near a window, 
your image appears clear and well-defined rather than faint.
Making Initial Color...

Displaying and Adjusting the Image41
Adjusting Color Corrections for a New Surface
Adjust the correction values if you’re projecting on a new surface or in 
a new location.
1. Press the 
Wall Shot button on the remote control or projector 
while you’re projecting an image. Wait for the Wall Shot status 
screen.
2. Press the 
Wall Shot button until you see Wall Shot 
Readjustment
 on the status screen. 
You see a sequence of colors flash for about five seconds as the 
projector adjusts the color...

42Displaying and Adjusting the Image2. Use the   pointer button to set 
Security Lock to ON. Then 
press the 
Enter button.
3. Select 
Password and press the Enter button.
4. When you see a message asking if you want to change the 
password, select 
Yes and press Enter.
5. Press the 
Num button on the remote control. When it lights, the 
numeric keypad is activated.
6. Use the numeric keypad to enter a four digit password. (The 
default setting is 0000.) 
7. When you see a confirmation message, reenter...