Optoma Tx785 Projector User Manual

							Usage Notice ........................................................................\
.............................................. 2
Safety Information  ........................................................................\
................................................2Class B emissions limits  ........................................................................\
........................................................................\
................ 2
Important Safety Instruction  ........................................................................\
........................................................................\
........ 2
Precautions ........................................................................\
.............................................................4
Eye Safety Warnings  ........................................................................\
.............................................6
Introduction ........................................................................\
............................................... 7
Product Features  ........................................................................\
...................................................7
Package Overview  ........................................................................\
................................................8
Product Overview  ........................................................................\
.................................................9
Main Unit ........................................................................\
........................................................................\
........................................ 9
Control Panel  ........................................................................\
........................................................................\
................................ 10
Rear View  ........................................................................\
........................................................................\
...................................... 11
Remote Control  ........................................................................\
........................................................................\
............................ 12
Installation ........................................................................\
................................................ 13
Connecting the Projector  ........................................................................\
....................................13Connect to Computer / Notebook  ........................................................................\
.................................................................... 13
Connect to Video Sources  ........................................................................\
........................................................................\
........... 14
Installing or Removing the Optional Lens ........................................................................\
......15Removing the Existing Lens From the Projector  ........................................................................\
............................................. 15
Installing the New Lens  ........................................................................\
........................................................................\
.............. 16
Powering On/Off the Projector ........................................................................\
........................17Powering On the Projector ........................................................................\
........................................................................\
......... 17
See Security Setting on page 43 if security lock is enabled.   ........................................................................\
.......................... 18
Powering Off the Projector  ........................................................................\
........................................................................\
......... 19
Warning Indicator........................................................................\
........................................................................\
........................ 19
Adjusting the Projected Image  ........................................................................\
..........................20Adjusting the Projector’s Height  ........................................................................\
....................................................................... 20Adjusting Projected Image Position Using PureShift ............................................................20Adjusting the vertical image position  ........................................................................\
............................................................... 21
Adjusting the horizontal image position  ........................................................................\
.......................................................... 22
PureShift Range Diagram  ........................................................................\
........................................................................\
........... 22
Adjusting the Zoom / Focus  ........................................................................\
........................................................................\
...... 23
Adjusting Projection Image Size (XGA)  ........................................................................\
........................................................... 24
Adjusting Projection Image Size (WXGA)  ........................................................................\
....................................................... 25
User Controls  ........................................................................\
........................................... 26
Control Panel ........................................................................\
.......................................................26
Remote Control  ........................................................................\
...................................................27
On-screen Display Menus  ........................................................................\
..................................29
How to operate ........................................................................\
........................................................................\
............................. 29
Menu Tree  ........................................................................\
........................................................................\
..................................... 30
Image ........................................................................\
....................................................................31
Display  ........................................................................\
.................................................................. 37
Setup  ........................................................................\
..................................................................... 39
Options  ........................................................................\
................................................................. 50
LAN_RJ45  ........................................................................\
............................................................. 55
Appendices ........................................................................\
.............................................. 58
Troubleshooting/Help On-screen Display Menu  ..................................................................58Image Problems........................................................................\
........................................................................\
............................ 58
Intermission Problems ........................................................................\
........................................................................\
................ 63
HDMI Q & A  ........................................................................\
........................................................................\
................................ 64
Projector Status Indication........................................................................\
........................................................................\
.......... 65
LED Error Code Messages  ........................................................................\
........................................................................\
.......... 66
Remote Control Problems  ........................................................................\
........................................................................\
.......... 67
Audio Problems  ........................................................................\
........................................................................\
........................... 68
Replacing the Lamp  ........................................................................\
........................................................................\
..................... 69
Cleaning the Projector ........................................................................\
........................................71
Cleaning the Lens  ........................................................................\
................................................71
Cleaning the Case  ........................................................................\
........................................................................\
........................ 71
Compatibility Modes  ........................................................................\
........................................................................\
................... 72
RS232 Commands ........................................................................\
...............................................74
RS232 Protocol Function List  ........................................................................\
.............................75
Ceiling Installation  ........................................................................\
..............................................82
Optoma Global Offices  ........................................................................\
.......................................83
Regulation & Safety notices  ........................................................................\
...............................85
Operation conditions  ........................................................................\
..........................................86
Table of Contents 
						

							English
Safety Information
The lightning flash with arrow head within an equilateral triangle is  
intended to alert the user to the presence of uninsulated “dangerous \
 
voltage” within the product’s enclosure that may be of sufficient  
magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert 
the user to the presence of import operating and maintenance (servicing\
) 
instructions in the literature accompanying the appliance.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE 
THE PROJECTOR TO RAIN OR MOISTURE. DANGEROUS HIGH VOLTAGES ARE 
PRESENT INSIDE THE ENCLOSURE. DO NOT OPEN THE CABINET.  
REFER SERVICING TO QUALIFIED PERSONNEL ONLY.
Class B emissions limits
This Class B digital apparatus meets all requirements of the Canadian 
Interference-Causing Equipment Regulations.
Important Safety Instruction
  1. Read these instructions –before using this projector.
  2. Keep these instructions –for future reference.
  3. Follow all instructions.
  4. Install in accordance with the manufacturer’s instructions : A. Do not block any ventilation openings. To ensure reliable operation of the projector and to protect it from overheating, 
put the projector in a position and location that will not  
interfere with its proper ventilation. For example, do not 
place the projector on a bed, sofa, carpet, or similar surface 
that may block the ventilation openings. Do not put it in an 
enclosure, such as a bookcase or a cabinet that may keep air 
from flowing through its ventilation openings.
B. Do not use this projector near water or moisture. To reduce  the risk of fire or electric shock, do not expose the projector to 
rain or moisture.
C. Do not install near any heat sources , such as radiators, heaters, 
stoves or other apparatus (including amplifiers) that produce heat.
  5. Clean only with a dry cloth.
  6. Only use attachments/accessories specified by the manufacturer.
  7. Refer all servicing to qualified service personnel. Servicing is required  when the projector has been damaged in any way, such as:
r Power supply cord or plug is damaged.
r Liquids have spilled or objects have fallen into the apparatus.
r  The  projector  has  been  exposed  to  rain  or  moisture,  does  not  operate normally, or has been dropped.
Usage Notice 
						

							English
Do not attempt to service this projector yourself. Opening or  
removing covers may expose you to dangerous voltages or 
other hazards. Please call Optoma to be referred to an  
authorized service center near you.
  8. Do not let objects or liquids enter the projector as they may touch  dangerous voltage points or short-out parts that could result in a 
fire or electric shock.
  9. See projector enclosure for safety related markings.
10.  The  projector  should  not  be  adjusted  or  repaired  by  anyone   except properly qualified service personnel.
Usage Notice 
						

							English
Precautions
Please follow all warnings, precautions and  maintenance as recommended in this user’s guide.
▀■ Warning - Do not look into the projector’s lens when the lamp is  on. The bright light may damage your eyes.
▀■ Warning - To reduce the risk of fire or electric shock, do not   
expose this projector to rain or moisture.
▀■ Warning - Please do not open or disassemble the projector as this  may cause electric shock.
▀■ Warning - When replacing the lamp, please allow unit to cool down,  and follow all replacement instructions. See pages 69.
▀■ Warning - This projector will detect the life of the lamp itself. Please  be  sure  to  change  the  lamp  when  it  shows  warning  
messages.
▀■ Warning - Use the “Lamp Reset” function from the on-screen display  “Options|Lamp  Setting”  menu  after  replacing  the  lamp 
module (see page 53).
▀■ Warning - When switching the projector off, please ensure the   cooling cycle has been completed before disconnecting 
the power. Allow 90 seconds for the projector to cool 
down.
▀■ Warning - Do not use the lens cap when projector is in operation.
▀■ Warning - When the lamp is approaching the end of its life, the  message  “Lamp  is  approaching  the  end  of  its  useful 
life” displays on the screen. Please contact your local 
reseller  or  service  center  to  change  the  lamp  as  soon 
as possible.
▀■ Warning - To reduce the risk of injury to the eyes, do not look directly  into the laser beam on the remote control and do not point 
the laser beam into anyone’s eyes. This remote control is 
equipped with a Class II laser that emits radiation.
When the 
lamp reaches 
the end of its 
life, the  
projector will 
not turn back 
on until the 
lamp  
module has 
been replaced. 
To replace the 
lamp, follow 
the procedures 
listed under 
“Replacing the 
Lamp” section 
on page 69.v
Usage Notice 
						

							English
Do:
v Turn off the product before cleaning.
v Use a soft cloth moistened with a mild detergent to clean the  display housing.
v Disconnect the power plug from the AC outlet if the product  is not being used for a long period of time.
Do not:
v Block the ventilation slots and openings on the unit.
v Use abrasive cleaners, waxes or solvents to clean the unit.
v Use under the following conditions: -  In  extremely  hot,  cold  or  humid  environments.  Ensure  that the ambient room temperature is within 5-40 °C and relative 
humidity is 10-85% (max.), non-condensing.
- In areas susceptible to excessive dust and dirt.
- Near any appliance that generates a strong magnetic field.
- In direct sunlight.
Usage Notice 
						

							English
Usage Notice
Eye Safety Warnings
▀■ Avoid staring directly into the projector’s beam of light at all times.
▀■ Minimize standing facing into the beam. Keep your back to the beam as much as possible.
▀■ Using a stick or laser pointer is recommended to avoid the need  for the presenter to enter the beam.
▀■ Ensure that projectors are located out of the line of sight from  the screen to the audience; this ensures that, when presenters 
look at the audience, they do not also have to stare at the  
projector lamp. The best way to achieve this is by ceiling-
mounting the projector rather than placing it on floor or table 
top.
▀■ When projector is used in a classroom, adequately supervise   
students when they are asked to point out something on the 
screen.
▀■ In order to minimize the lamp power needed, use room blinds  to reduce ambient light levels.
  
						

							English
Introduction
Product Features
This product is a single chip 0.7” XGA and 0.65” WXGA series 
DLP® projector. Outstanding features include:
u Texas Instruments Single chip DLP®  Technology
u Computer Compatibility:
Apple Macintosh, iMac, and VESA Standards:  
UXGA, SXGA+, SXGA, WXGA, XGA, SVGA, VGA
u Video Compatibility:
■  NTSC, NTSC4.43
■  PAL/PAL-M/PAL-N/SECAM
■  SDTV and EDTV compatible
■  HDTV compatible (720p, 1080i, 1080p)
u Auto source detection with user definable settings
u 
Fully featured IR remote control with laser pointer and 
mouse control
u User friendly multilingual On Screen Menu
u Advanced digital keystone correction and high   quality full screen image re-scaling
u User friendly control panel
u Macintosh and PC compatible u HDMI 1.3 compatible 
u Instant On Screen Help
u Closed Captioning equipped  
						

							English
Package Overview
This projector comes with all the items shown below. Check to 
make sure your unit is complete. Contact your dealer  
immediately if anything is missing.
1
 
P g P g
F o r m a t
H D M I
S o u r c eC o m p o n e n tD IV B N C V G A - 1
V G A - S - Vi d e oVi d e o
M e n u
D i s p l a yVo l u m e
、、、
、

  
  0
Enter/HelpBrightness
Projector with lens cap IR Remote Control (with 2 x AA Batteries)
Option Lens 
(Standard lens/ 
Long throw lens/  Short throw lens) Composite Cable 
1.8m  
(Not available in 
European Version) Power Cord 1.8m
VGA Cable 1.8m
USB Cable  
(A to B) 1.8m   (optional) SCART to RGB &  
S-Video Adapter 
(optional)
Documentation:
þ  User’s Manual
þ  Warranty Card
þ  Quick Start Card
þ  WEEE Card
Due to the 
difference in  
applications 
for each 
country, 
some regions 
may have 
different  
accessories.
v
Introduction 
						

							English
Product Overview
Main Unit
1.Front IR Receiver10. Focus
2.Top Cover
11.Lens CAP
3.Lens Release Button
12. Power Button
4.Vertical and Horizontal Lens 13. LED Indicators
Shift Adjustment Controls 14. Input/Output Connections
5.Control Panel15. Back IR Receiver
6.Lamp Cover16. Main Power Switch
7.Tilt-Adjustment foot 17. Power Socket
8.Zoom18. Security Bar
9.Lens19. Kensington™ Lock
2
1
769811 10 
5
4
3
1213
19181716
14
15
Introduction 
						

							English10
Control Panel
1.Source / ◄
2. Keystone + / ▲
3. Re-Sync / ►
4. Menu
5. Enter / Help  
(See page 58 Appendices for help function.)
6. Keystone - / ▼
 
2314
65
Introduction