Epson Projector Ex21 User Manual

Solving Problems71
Solving Projector Operation Problems
The power doesn’t turn on.
■If the projector doesn’t turn on when you press the Ppower 
button, make sure the power cord is connected to the projector 
and plugged into a working electrical outlet.
■The power cord may be defective. Disconnect the cord from the 
outlet and contact Epson as described on page 78.
■If you’re using the Direct Power On function and you 
immediately plug the power cord back in after unplugging it, the 
power may not turn...

72Solving Problems
■The attached computer may be in sleep mode or displaying a 
black screen saver. Try pressing a key on the computer.
■If you are projecting from a DVD player or other video source, 
make sure you turn it on and press its 
Play button.
■If you are projecting from a composite or S-Video video source, 
make sure the Video Signal setting is correct (see page 47).
■You can also try resetting all of the menu settings (see page 45).
You’ve connected a computer and see a blue screen with the...

Solving Problems73
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 47).
■Make sure your computer’s resolution and frequency or refresh 
rate is supported by the...

74Solving Problems
■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 33.
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...

Solving Problems75
■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 15).
■Make sure the lens is not fogged by condensation. You may need 
to wait before using the projector after moving it from a...

76Solving Problems3. Adjust the 
Sync setting to increase the image sharpness. 
The image is too light or dark, or colors are incorrect.
■Select a different Color Mode option in the Image menu. See 
page 35 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...

Solving Problems77
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 26.
Nothing appears on an external monitor 
The only images that can be displayed on an external monitor are 
computer images connected through...

78Solving Problems
Where To Get Help
Epson provides these technical support services:
Internet Support 
Visit Epson’s support website for solutions to common problems with 
your projector. You can download utilities and documentation, get 
FAQs and troubleshooting advice, or e-mail Epson with your 
questions.
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...

Solving Problems79
Before you call for support, please have the following information 
ready:
■Product name (EX21)
■Product serial number (located on the rear of 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...

80Solving Problems