Epson Powerlite 78 Multimedia Projector Users Guide

							Solving Problems91
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 projector (see page 103). If necessary, 
change your computer’s settings. 
Only part of the computer image is displayed.
■Press the Auto button on the remote control or the Enter button 
on the projector.
■Make sure the image Position setting is correct in the Signal 
menu. See page 64 for more information.
■Press the Aspect button on the remote control (PowerLite W6 
Series only) or select the correct 
Aspect setting from the Signal 
menu. See page 47 for details on the available options.
■Press the Esc button on the remote control to cancel the E-Zoom 
function.
■Make sure your computer’s resolution setting is correct. See the 
compatible video formats listed on page 103.
■You also may need to modify existing presentation files if you 
created them for a different resolution. See your software 
documentation for specific information. 
						

							92Solving Problems
■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 reduced.
■Keep your computer and video cables away from the power cord 
as much as possible to prevent interference.
■The video signal may be split between the computer and the 
projector. If you notice a decline in the projected image quality 
when the image is displayed simultaneously on your notebook 
computer and the projector, turn off the notebook’s LCD display.
■Make sure the correct input signal is selected in the Signal menu 
(see page 64).
■If you’re using a composite, S-Video, or component video source 
with 480i signals, turn on the 
Progressive setting on the Signal 
menu (see page 64).
■If you’ve used the Keystone adjustment, you may need to decrease 
the 
Sharpness setting in the Image menu (see page 62).
■If you’re projecting from a computer, make sure its signal is 
compatible with the projector. See page 103.
■If you’re projecting from a computer, press the Auto button on 
the remote control to reset the projector’s Tracking, Sync, and 
Position settings 
						

							Solving Problems93
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 
distance) from the screen (see page 17).
■Make sure the lens is not fogged by condensation. You may need 
to wait before using the projector after moving it from a cold 
environment to a warm environment.
■If you’re projecting from a computer, you may need to adjust the 
tracking and sync settings as described in the next section. 
You see vertical bands or the image still looks blurry after 
trying the solutions in the previous section.
■If you’re projecting from a computer and displaying an image that 
contains a lot of fine detail, you may notice vertical bands or some 
of the characters may look heavy or blurred. Press the 
Auto 
button on the remote control or the 
Enter button on the 
projector to reset the projector’s Tracking, Sync, and Position 
settings.
■If further adjustment is needed, you can fine-tune the Tracking 
and 
Sync settings manually using the Signal menu, as described 
on page 64.
1. Fill the screen with an image containing fine detail, such as a 
pattern to appear as your desktop background, or try 
projecting black text on a white background.
note
You must be projecting an 
image for the 
Auto button 
to have any effect. It works 
only with computer images 
projected through the 
Computer (Component 
Video) port. 
						

							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 Saturation, Color Temp, and Tint settings 
on the Image menu.
■Try adjusting the Brightness and Contrast settings on the Image 
menu.
■Try adjusting the Brightness Control setting (see page 65).
■Check your computer display settings to correct the color balance.
■The projector’s lamp may need to be replaced. See page 78 for 
instructions.
■Make sure the correct input signal is selected in the Signal menu 
(see page 64).
■Make sure that all cables are connected to the proper ports and 
connected securely.
note
Because of the different 
technologies used, your 
projected image may not 
exactly match the colors on 
your notebook or computer 
monitor. 
						

							Solving Problems95
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 right 
corner of the screen). On a Mac, you may be able to adjust the 
volume from your menu bar (top right corner of the screen) or via 
the volume control function keys.
■If you’re using a DVD player or other video source, make sure the 
cables are connected correctly, as described on page 34.
Nothing appears on an external monitor (PowerLite S6 
Series and PowerLite 78 only)
The only images that can be displayed on an external monitor are 
computer images connected through the 
Computer (Component 
Video) 
port (see page 33).
Solving Problems With the Remote 
Control
The projector doesn’t respond to remote control commands.
■Point the remote control towards the projector’s receiver. Make 
sure you are within 19.7 feet (6 meters) of the projector and 
within a 30° horizontal angle and a 15° vertical angle from the 
projector’s front or back receiver.
■The remote control’s batteries may not be installed correctly or 
may be low on power. To change the batteries, see page 82.  
						

							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 support services:
Internet Support 
Visit Epson’s support website for solutions to common problems with 
the PowerLite S6 Series
, PowerLite 78, or PowerLite W6 Series. You 
can download utilities and documentation, get FAQs and 
troubleshooting advice, or e-mail Epson with your questions.
Visit Presenters Online
 to access tips, templates, and training for 
developing successful presentations.
Speak to a Support Representative
To use the Epson PrivateLine Support service, call (800) 637-7661 
and enter the PIN on the included Epson PrivateLine Support card. 
This is the fastest way of speaking to a live representative, and it’s free. 
This service is available 6
AM to 6PM, Pacific Time, Monday through 
Friday, for the duration of your warranty period.
You may also speak with a projector support specialist by dialing one 
of these numbers:
■U.S.: (562) 276-4394, 6AM to 6PM, Pacific Time, Monday 
through Friday. 
■Canada: (905) 709-3839, 6AM to 6PM, Pacific Time, Monday 
through Friday. 
						

							Solving Problems97
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 screens and other accessories from an Epson 
authorized reseller. To find the nearest reseller, call 800-GO-EPSON 
(800-463-7766). Or you can purchase online at www.epsonstore.com
 
(U.S. sales) or www.epson.ca
 (Canadian sales). 
						

							98Solving Problems 
						

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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 light output 1750 lumens
PowerLite W6 Series
High mode:
White light output 2000 lumens 
(ISO 21118 standard)
Color light output 2000 lumens
Low mode:
White light output 1590 lumens 
(ISO 21118 standard)
Color light output 1590 lumens 
						

							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 inches (76.2 to 762 cm)
PowerLite W6 Series (16:10 image)
27 to 270 inches (69 to 685.8 cm)
Projection distancePowerLite S6 Series (4:3 image)
34 to 412 inches (87 to 1047 cm)
PowerLite 78 (4:3 image)
33 to 412 inches (84 to 1047 cm)
PowerLite W6 Series (16:10 image)
33 to 412 inches (84 to 1047 cm)
Projection methods Front, rear, upside-down (ceiling 
mount)
Internal sound system
(monaural)PowerLite S6 Series/PowerLite 78
1 W
PowerLite W6 Series
7 W
Optical aspect ratioPowerLite S6 Series/PowerLite 78
4:3 (horizontal:vertical)
PowerLite W6 Series
16:10 (horizontal:vertical)