Epson Powerlite 78 Multimedia Projector Users Guide

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If you’re using Mac OS X:
1. Open 
System Preferences. 
2. Click 
Displays.
3. Click 
Detect Displays. 
4. Make sure the 
VGA Display or Color LCD dialog box is selected.
5. Click the 
Arrangement or Arrange tab.
6. Make sure the 
Mirror Displays checkbox is selected. 
The message Not Supported is displayed.
■Make sure the correct input signal is selected in the Signal menu 
(see page 63).
■Make sure your computer’s resolution and frequency or refresh 
rate is supported by the...

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■If you’re projecting a widescreen computer image, adjust the 
Resolution setting (see page 63), if necessary.
■If you’re projecting an image from a computer with dual display 
activated, turn dual display off.
The image isn’t square, but keystone-shaped.
If the image isn’t evenly rectangular, adjust its shape as described on 
page 44.
The image contains static or noise.
■If you’re using a computer cable longer than 6 feet (1.8 meters), 
or an extension cable, the image quality may be...

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The image is blurry.
■There may be dirt or smears on the lens. Clean the lens as 
described on page 76.
■Adjust the focus using the focus ring (see page 45).
■If the projector is angled sharply toward the screen, it may not be 
possible to focus the entire image. Move the projector to position 
it more directly in front of the screen.
■Lower the projection angle to reduce the amount of keystone 
correction required.
■Make sure the projector is within the proper range (projection...

94Solving Problems2. Adjust the 
Tracking to eliminate vertical bands. 
3. Adjust the 
Sync setting to increase the image sharpness. 
The image is too light or dark, or colors are incorrect.
■Press the Color Mode button (PowerLite W6 Series only) or 
select a different 
Color Mode option in the Image menu. See 
page 46 for details on the available options. 
■If you’re displaying video, adjust the Color Adjustment and 
Color Mode settings on the Image menu. You can also try 
adjusting the 
Color...

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There is no sound, or the sound is not loud enough.
■Use the Volume buttons to adjust the volume (see page 52), or 
adjust the 
Volume setting in the Settings menu.
■Make sure A/V Mute is not enabled. (Press the A/V Mute button 
to disable it.) 
■If your presentation includes computer audio, make sure the 
volume control on your computer is not turned all the way down 
or muted. In Windows, you may be able to check this by clicking 
the volume control in your Windows system tray (lower...

96Solving Problems
■Dim the room lights and turn off any fluorescent lights. Make 
sure the projector is not in direct sunlight. Strong lighting, 
especially fluorescent lights, may affect the projector’s infrared 
receivers. Also, turn off any nearby equipment that emits infrared 
energy, such as a radiant room heater. 
■If any buttons are held for longer than 30 seconds, the remote 
enters sleep mode. Release any button that is held to wake the 
remote.
Where To Get Help
Epson provides these technical...

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Days and hours of support are subject to change without notice. Toll 
or long distance charges may apply.
Before you call for support, please have the following information 
ready:
■Product name (PowerLite S6 Series, PowerLite 78, or 
PowerLite W6 Series)
■Product serial number (located on the projector)
■Proof of purchase (such as a store receipt) and date of purchase
■Computer or video configuration
■Description of the problem
Purchase Supplies and Accessories
You can purchase...

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Technical Specifications
General
Type of display Epson poly-silicon TFT active matrix
Resolution
(native format)PowerLite S6 Series 
800 × 600 pixels (SVGA)
PowerLite 78
1024 × 768 pixels (XGA)
PowerLite W6 Series
1280 × 800 pixels (WXGA)
Color reproduction 16.8 million colors
Light output
(brightness)PowerLite S6 Series/PowerLite 78
High mode:
White light output 2200 lumens 
(ISO 21118 standard)
Color light output 2200 lumens
Low mode:
White light output 1750 lumens 
(ISO 21118 standard)
Color...

100Technical SpecificationsContrast ratio 2000:1 (with 
Auto Iris setting turned 
on in the Image menu; see page 61)
PowerLite S6 Series460:1 (with 
Auto 
Iris
 setting turned off in the Image 
menu; see page 61)
PowerLite 78510:1 (with 
Auto Iris 
setting turned off in the Image menu; 
see page 61)
PowerLite W6 Series410:1 (with 
Auto 
Iris
 setting turned off in the Image 
menu; see page 61)
Image sizePowerLite S6 Series (4:3 image)
23 to 350 inches (58.4 to 889 cm)
PowerLite 78 (4:3 image)
30 to 300...