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 back on. Press the Ppower button to turn 
the projector back on.
The buttons on the projector don’t work.
If the Control Panel Lock function has been enabled, you can’t use the 
buttons on the projector. Try using the remote control instead, or 
press and hold the projector’s 
Enter button for seven seconds to 
release the lock (see page 55).
Solving Problems With the Image 
or Sound
No image appears on the screen.
■Check that the Ppower light is green (not flashing) and that the 
A/V Mute slide is open. Also press the A/V Mute button on the 
remote control to make sure the picture has not been turned off 
temporarily.
■The projector may be in standby or sleep mode. If the Ppower 
light is orange, press the Ppower button to turn the projector on.
■If the power was switched off and then on again, the projector 
may be cooling down. Wait until the Ppower light stops flashing 
and remains orange; then press the Ppower button again. 
						

							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 
message 
No Signal displayed.
■Make sure the cables are connected correctly, as described 
beginning on page 18.
■If you’ve connected a computer and one or more video sources, 
you may need to press the 
Source Search button to select the 
correct source. Allow a few seconds for the projector to sync up 
after pressing the button.
■Make sure the power for your connected equipment is turned on.
If you’re using a PC notebook: 
■Hold down the Fn key on the keyboard 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 
notebook’s manual or online help for details. 
On most systems, the   key lets you toggle between the LCD 
screen and the projector, or display on both at the same time.
If you connect the notebook while the projector or computer are 
already turned on, the function 
Fn key that changes the 
computer’s image signal to external output may not work. Turn 
the computer and the projector off and then back on again.
■Depending on your computer’s video card, you might need to use 
the Display utility in the Control Panel to make sure that both the 
LCD screen and external monitor port are enabled. See your 
computer’s documentation or online help for details. 
						

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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 47).
■Make sure your computer’s resolution and frequency or refresh 
rate is supported by the projector (see page 84). 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 48 for more information.
■Select the correct Aspect setting from the Signal menu. See 
page 35 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 84.
■You also may need to modify existing presentation files if you 
created them for a different resolution. See your software 
documentation for specific information.
■If you’re projecting a widescreen computer image, adjust the 
Resolution setting (see page 47), if necessary. 
						

							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 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 48).
■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 48).
■If you’ve used the Keystone adjustment, you may need to decrease 
the 
Sharpness setting in the Image menu (see page 46).
■If you’re projecting from a computer, make sure its signal is 
compatible with the projector. See page 84.
■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
The image is blurry.
■There may be dirt or smears on the lens. Clean the lens as 
described on page 58.
■Adjust the focus using the focus ring (see page 34). 
						

							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 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 48.
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.
2. Adjust the 
Tracking to eliminate vertical bands. 
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. 
						

							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 Image 
menu.
■Try adjusting the Brightness Control setting (see page 49).
■Check your computer display settings to correct the color balance.
■The projector’s lamp may need to be replaced. See page 60 for 
instructions.
■Make sure the correct input signal is selected in the Signal menu 
(see page 48).
■Make sure that all cables are connected to the proper ports and 
connected securely.
There is no sound, or the sound is not loud enough.
■Use the Volume buttons to adjust the volume (see page 40), 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 
note
Because of the different 
technologies used, your 
projected image may not 
exactly match the colors on 
your notebook or computer 
monitor. 
						

							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 the 
Computer (Component 
Video) 
port (see page 25).
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 64. 
■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. 
						

							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 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.
Days and hours of support are subject to change without notice. Toll 
or long distance charges may apply. 
						

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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 online at www.epsonstore.com 
(U.S. sales) or www.epson.ca (Canadian sales). 
						

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