Optoma Tx775 Projector User Manual

							
 
Table of Contents 
1 
Table of Contents 
Table of Contents ........................................................................\
..................................................................................1 
Usage Notice........................................................................\
..........................................................................................3 
Introduction........................................................................\
...........................................................................................6 
Packing Checklist ........................................................................\
...............................................................................6 
Views of Projector ........................................................................\
..............................................................................7 
Remote Control........................................................................\
....................................................... ..........................13 
Remote Control Operating Range........................................................................\
....................................................15 
Projector and Remote Control Buttons ........................................................................\
.............................................15 
Inserting the Remote Control Batteries ........................................................................\
............................................16 
Setup and Operation........................................................................\
....................................................... ....................17 
Connecting Input Devices........................................................................\
....................................................... ..........17 
Starting and Shutting down the Projector........................................................................\
........................................19 
Setting an Access Password (Security Lock) ........................................................................\
....................................21 
Adjusting the Projector Level........................................................................\
....................................................... ....23 
Adjusting the Zoom, Focus and Keystone........................................................................\
.........................................24 
Adjusting the Volume........................................................................\
....................................................... .................24 
OSD Menu Controls........................................................................\
....................................................... ..................25 
Setting the OSD Language........................................................................\
....................................................... .........26 
Menu Setting........................................................................\
.......................................................................................27 
OSD Menu Overview ........................................................................\
....................................................... .................27 
Image Menu ........................................................................\
......................................................................................28 
Display Menu........................................................................\
....................................................... .............................30 
Setup Menu........................................................................\
.......................................................................................32 
Color setting Menu ........................................................................\
....................................................... ....................35 
Language Menu........................................................................\
....................................................... .........................36 
Management Menu........................................................................\
....................................................... ....................37 
Appendices........................................................................\
...........................................................................................39 
Replacing the Projection Lamp ........................................................................\
....................................................... .39 
Resetting the Lamp........................................................................\
....................................................... ....................42 
Cleaning the Projector........................................................................\
....................................................... ...............43 
Using the Kensington® Lock........................................................................\
....................................................... .....43 
Common problems and solutions........................................................................\
......................................................4 4 
Tips for Troubleshooting........................................................................\
....................................................... ...........44  
						

							
 
Table of Contents 
2 
LED Error Messages ........................................................................\
....................................................... .................45 
Image Problems........................................................................\
....................................................... .........................46 
Lamp Problems........................................................................\
....................................................... ..........................46 
Remote Control Problems........................................................................\
....................................................... ..........47 
Audio Problems........................................................................\
....................................................... .........................47 
Having the Projector Serviced........................................................................\
....................................................... ...48 
Specifications........................................................................\
.......................................................................................49 
Projection Distance V.S. Projection Size ........................................................................\
..........................................49 
Timing Mode Table........................................................................\
....................................................... ....................50 
Projector Dimensions........................................................................\
....................................................... ................51 
Regulatory Compliance........................................................................\
....................................................... ...............52 
FCC Warning........................................................................\
....................................................... .............................52 
Canada........................................................................\
..............................................................................................52 
Safety Certifications ........................................................................\
....................................................... ...................52 
EN 55022 Warning........................................................................\
....................................................... ....................52 
RoHS Compliant........................................................................\
....................................................... ........................52 
  
						

							
 
Usage Notice 
3 
Usage Notice 
Congratulations and thank you for choosing an EP771 projector, an on Optoma product. This product is an 
XGA single chip 0.7 inch DLP ® projector! 
Important: 
It is strongly recommended that you read this sect ion carefully before using the projector. These 
safety and usage instructions will ensure that you enj oy many years of safe use of the projector. 
Keep this manual for future reference. 
Precautions 
Warning symbols are used on the unit and in this ma nual to alert you of hazardous situations.  
The following styles are used in this manual to alert you to important information. 
Note: 
Provides additional information on the topic at hand. 
 
Important: 
Provides additional information that should not be overlooked. 
 
Caution: 
Alerts you to situations that may damage the unit.  
 
Warning: 
Alerts you to situations that may damage the unit, create a  hazardous environment, or cause per-
sonal injury.  
Throughout this manual, component parts and items in  the OSD menus are denoted in bold font as in this 
example:  
“Push the  Menu button on the remote control to open the Main menu.” 
Remote Control 
Some remote controls have a laser for pointing out items on a screen.  
DANGER: Do not point the laser in the eyes. Doing so can damage the eyes permanently. 
General Safety Information 

						

							
 
Usage Notice 
Power Safety 

						

							
 
Usage Notice 
5 
Main Features 
•  Lightweight unit, easy to pack away and transport 
• Compatible with all major video standards including NTSC, PAL, and SECAM 
• A high brightness rating allows for presentations in daylight or in lit rooms 
• Supports resolutions up to SXGA at 16.7 million colors to deliver crisp, clear images  
• Flexible setup allows for front and rear projections 
• Line-of-vision projections remain square, with advanced keystone correction for angled 
projections 
• Input source automatically detected 
About this manual 
This manual is intended for end users and describes  how to install and operate the EP771 projector. 
Wherever possible, relevant information—such as  an illustration and its description—has been kept on 
one page. This printer-friendly format is both for y our convenience and to help save paper, thereby 
protecting the environment. It is suggested that you only print sections that are relevant to your needs. 
  
						

							
 
Introduction 
Introduction 
Packing Checklist 
Carefully unpack the projector and check  that the following items are included: 
 
 
 
EP771 PROJECTOR REMOTE CONTROL  
(
WITH TWO AAA BATTERIES) 
 
   
POWER CORD USB CABLE 
(USB 
TYPE A TO B USB) 
VIDEO CABLE  
(RCA X 1TO  RCA X 1) 
 
 
 
COMPUTER CABLE  
(DB15
 - DB15) 
CARRYING CASE  
Documents: 
User’s Guide 
Quick Start Card 
Warranty Card 
 
Contact your dealer immediately if any items are mi ssing, appear damaged, or if the unit does not work. 
Caution: 
Avoid using the projector in dusty environments. 
 
6  
						

							
 
Introduction 
Views of Projector 
Front-right View 
1
76
5438
2 3
 
ITEM LABEL DESCRIPTION SEE PAGE: 
1.  Focus Focuses the projected image 24
2.  Lens zoom Enlarges the projected image 24
3.  Screws Holds lamp to projector 
4.  See “Top view—OSD buttons and LEDs”  8
5.  IR receiver Receiver for IR signal from remote control 15
6.  Lens Remove lens cap before use 
7.  Lens cover Slide across to protect lens when not in use 
8.  Height-adjuster but-
ton Push to release height adjuster 23
 
Important: 
Ventilation openings on the projector  allow for good air circulation, which keeps the projector lamp 
cool. Do not obstruct any of the ventilation openings. 
7  
						

							
 
Introduction 
Top view—On-screen Displa y (OSD) buttons and LEDs 
8
11 10 9 17
4
36
25 
ITEM LABEL DESCRIPTION SEE PAGE: 
1.  Keystone/ 
Down cursorCorrects image-trapezoid (wider bottom) effect  
Navigates and changes settings in the OSD 24
2.  VOL-/ 
Left cursor Decreases volume 
Navigates and changes settings in the OSD 24
Orange Lamp ready—you can safely turn on or off the projector 3.  Lamp LED 
Flashing Lamp not ready—do not press the power button 
4.  Keystone/  
UP cursor Corrects image-trapezoid (wider top) effect  
Navigates and changes settings in the OSD 
Green Unit is powered on and working correctly 
Off Unit is powered off 
5.  Power LED 
Flashing Operational error code  
(Refer to “LED Error Messages” on page 
45) 
8  
						

							
 
Introduction 
9 
ITEM LABEL DESCRIPTION SEE PAGE: 
6.  RE-SYNC Optimizes image size, position, and resolution 19
7.  Menu Opens and exits the OSD 25
8.  Source Detects the input device 
9.  Power Turns the projector on or off 
19
  
						

							
 
Introduction 
Rear view 
 
ITEM LABEL DESCRIPTION SEE PAGE:
1.  Rear IR Re-
ceiver Receiver for IR signal from remote control. 
2.  DVI-D Connect the computer cable from a computer. Both 
DVI-I and DVI-D are supported. 
3.  VGA IN Connect a VGA cable (supplied) from a computer 
4.  VGA OUT Connect to a monitor 
5.  S-video Connect the composite or S-video cable (supplied) 
from a video device 
6.  Video Connect a composite video cable (supplied) from a  video device. 
7.  Audio in-R Connect the audio cable (not supplied) from an audio 
input device. 
8.  Audio in-L Connect the audio cable (not supplied) from an audio  input device. 
9.  Audio-in Connect an audio cable (not supplied) from the com-puter’s audio-out connector. 
10.  Audio-out Audio loop-through 
11.  USB Connect the USB cable (supplied) from a computer 
12.  12V Connector Connect the 12V power outlet 
13.  RS-232 Installation control 
17 
10