Epson Projector Ex21 User Manual

							EX21
Multimedia Projector
User’s Guide 
						

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Important Safety Information
WARNING: Never look into the projector lens when the lamp is turned on; the bright light can damage your eyes. 
Never let children look into the lens when it is on. Never open any cover on the projector, except the lamp and 
filter covers. Dangerous electrical voltages inside the projector can severely injure you. Except as specifically 
explained in this User’s Guide, do not attempt to service this product yourself. Refer all servicing to qualified service 
personnel.
WARNING: The projector and its accessories come packaged in plastic bags. Keep plastic bags away from small 
children to avoid any risk of suffocation.
Caution: When you replace the lamp, never touch the new lamp with your bare hands; the invisible residue left by 
the oil on your hands may shorten the lamp life. Use a cloth or glove to handle the new lamp.
Copyright Notice
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in 
any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior 
written permission of Seiko Epson Corporation. The information contained herein is designed only for use with 
this Epson product. Epson is not responsible for any use of this information as applied to other products.
Neither Seiko Epson Corporation nor its affiliates shall be liable to the purchaser of this product or third parties for 
damages, losses, costs, or expenses incurred by purchaser or third parties as a result of: accident, misuse, or abuse of 
this product or unauthorized modifications, repairs, or alterations to this product, or (excluding the U.S.) failure to 
strictly comply with Seiko Epson Corporation’s operating and maintenance instructions.
Seiko Epson Corporation shall not be liable for any damages or problems arising from the use of any options or 
any consumable products other than those designated as Original Epson Products or Epson Approved Products by 
Seiko Epson Corporation.
Software Copyright:
This product uses free software as well as software to which this company holds the rights.
The following is information on the free software used by this product.
Hereafter, each author, the conditions, and so on are described in the original. Furthermore, there is no guarantee 
for free software because of the characteristics of the free software that has already been used in this product; any 
problems in this product (including problems that originate with the free software concerned) do not influence the 
conditions of the guarantee (written guarantee) issued by this company.
(1) libjpeg
© 1991-1998 Thomas G. Lane.
This software is based in part on the work of the Independent JPEG Group.
(2) libpng
© 1998-2004 Glenn Randers-Pehrson
© 1996-1997 Andreas Dilger
© 1995-1996 Guy Eric Schalnat, Group 42, Inc.
(3) zlib
© 1995-2003 Jean-loup Gailly and Mark Adler 
						

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Trademarks
Epson and Instant Off are registered trademarks, and Epson Exceed Your Vision is a registered logomark of Seiko 
Epson Corporation.
PrivateLine is a registered trademark, SizeWise is a trademark, and Extra Care is a service mark of Epson America, 
Inc.
Pixelworks, DNX, and the DNX logo are trademarks of Pixelworks, Inc.
General Notice: Other product names used herein are for identification purposes only and may be trademarks of 
their respective owners. Epson disclaims any and all rights in those marks.
This information is subject to change without notice.
© 2009 Epson America, Inc. 7/09
CPD-27575 
						

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Contents
Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Using Your Documentation . . . . . . . . . . . . . . . . . . . . . . . . . 10
Getting More Information . . . . . . . . . . . . . . . . . . . . . . . 10
Registration and Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1
Setting Up the Projector. . . . . . . . . . . . . . . . . . . . . 13
Unpacking the Projector . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Additional Components . . . . . . . . . . . . . . . . . . . . . . . . . 15
Positioning the Projector  . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Projector Placement Options . . . . . . . . . . . . . . . . . . . . . 17
Connecting to a Computer . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Connecting to the USB Port  . . . . . . . . . . . . . . . . . . . . . 19
Connecting to the VGA Computer Port  . . . . . . . . . . . . 20
Connecting to Video Equipment  . . . . . . . . . . . . . . . . . . . . . 21
Connecting a Composite Video Source  . . . . . . . . . . . . . 21
Connecting an S-Video Source  . . . . . . . . . . . . . . . . . . . 22
Connecting a Component Video Source  . . . . . . . . . . . . 23
Connecting an RGB Video Source . . . . . . . . . . . . . . . . . 24
Connecting an External Monitor  . . . . . . . . . . . . . . . . . . . . . 25
Playing Sound Through the Projector. . . . . . . . . . . . . . . . . . 26
Turning the Projector On and Off . . . . . . . . . . . . . . . . . . . . 26
Using the Direct Power On Function  . . . . . . . . . . . . . . 28
Shutting Down the Projector . . . . . . . . . . . . . . . . . . . . . 29 
						

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2
Displaying and Adjusting the Image . . . . . . . . 31
Selecting an Image Source  . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Adjusting the Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Adjusting the Position of the Image . . . . . . . . . . . . . . . . 33
Adjusting the Image Shape. . . . . . . . . . . . . . . . . . . . . . . 33
Focusing and Zooming the Image . . . . . . . . . . . . . . . . . 34
Selecting the Color Mode  . . . . . . . . . . . . . . . . . . . . . . . 35
Resizing Video Images . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3
Presenting With the Remote Control. . . . . . . . 37
Using the Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Controlling the Picture and Sound . . . . . . . . . . . . . . . . . . . . 38
Turning Off the Picture and Sound . . . . . . . . . . . . . . . . 38
Stopping Action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Zooming In on Your Image . . . . . . . . . . . . . . . . . . . . . . 39
Controlling the Volume . . . . . . . . . . . . . . . . . . . . . . . . . 40
Operating Your Computer With the Remote Control  . . . . . 40
4
Fine-Tuning the Projector. . . . . . . . . . . . . . . . . . . 43
Using the Menu System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Restoring the Default Settings . . . . . . . . . . . . . . . . . . . . 45
Adjusting the Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Adjusting Signal Settings  . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Customizing Projector Features  . . . . . . . . . . . . . . . . . . . . . . 49
Customizing Power and Operation  . . . . . . . . . . . . . . . . . . . 50
Using the Projector Security Features . . . . . . . . . . . . . . . . . . 51
Enabling Password Protection  . . . . . . . . . . . . . . . . . . . . 52
Creating Your Own Startup Screen . . . . . . . . . . . . . . . . 54
Disabling the Projector’s Buttons . . . . . . . . . . . . . . . . . . 55
Using Security Locking  . . . . . . . . . . . . . . . . . . . . . . . . . 56
5
Maintaining the Projector. . . . . . . . . . . . . . . . . . . 57
Cleaning the Lens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Cleaning the Projector Case . . . . . . . . . . . . . . . . . . . . . . . . . 58
Cleaning the Air Filter  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Replacing the Air Filter  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 
						

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Replacing the Lamp  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Resetting the Lamp Timer . . . . . . . . . . . . . . . . . . . . . . . 62
Checking Lamp Usage . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Replacing the Remote Control Batteries . . . . . . . . . . . . . . . . 64
Transporting the Projector . . . . . . . . . . . . . . . . . . . . . . . . . . 65
6
Solving Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Using On-Screen Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Checking Projector Status. . . . . . . . . . . . . . . . . . . . . . . . . . . 69
What To Do When the Lights Flash  . . . . . . . . . . . . . . . 69
Solving Projector Operation Problems  . . . . . . . . . . . . . . . . . 71
Solving Problems With the Image or Sound . . . . . . . . . . . . . 71
Solving Problems With the Remote Control. . . . . . . . . . . . . 77
Where To Get Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Speak to a Support Representative . . . . . . . . . . . . . . . . . 78
A
Technical Specifications . . . . . . . . . . . . . . . . . . . . . 81
B
Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Important Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . 87
FCC Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . 90
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 
						

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Welcome
The EX21 is an easy-to-use, compact, lightweight projector with a 
built-in speaker. It offers up to 2200 lumens of white and color light 
output (brightness) and provides a native SVGA resolution. You can 
connect it to a wide range of computers and video sources.
Your projector offers these easy setup, control, and security features:
■USB Plug n’ Play instant setup—Instantly project from a PC via 
USB connection
■Quick, convenient control—Direct Power Off, sleep mode, 
Instant Off ®/On
■One-touch filter replacement
■Top-loading easy lamp access
■Security features—password protection, user’s logo, projector 
button lock, security cable attachment (cable not included), and a 
slot for an optional Kensington
® security lock
Additional enhancements:
■2000:1 contrast ratio (with Auto Iris setting turned on) and 
vibrant color display
■Integral lens cover (A/V Mute slide) that won’t get lost
■Low power, long-lasting lamp with High and Low Brightness 
modes 
						

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Using Your Documentation
This book contains all the information you need to set up and use 
your projector. Please follow these guidelines as you read through it: 
■Warnings must be followed carefully to avoid bodily injury.
■Cautions must be observed to avoid damage to your equipment.
■Notes contain important information about your projector.
■Tips contain additional projection hints.
Getting More Information
Need tips on giving presentations? Quick steps for setting up your 
projector? Here’s where you can look for help: 
■Quick Setup sheet
Provides information for connecting the projector to your 
equipment, displaying and adjusting the image, and solving 
display problems.
■Built-in help system
Provides assistance for common problems. Available from the 
?Help button on the projector or the remote control. See page 68 
for details.
■epson.com/support
Download FAQs and e-mail your questions to Epson support. 
■PrivateLine® support
If you still need help after checking this User’s Guide and the 
sources listed in this section, you can use the Epson PrivateLine 
Support service to get help fast. Call (800) 637-7661 and enter 
the PIN on the PrivateLine card. Or take advantage of Epson’s 
automated support services 24 hours a day. See page 78 for more 
information.