Optoma Projector Tx7155 User Manual

							 
Introduction 
 11
Remote Control 
 
Important: 
1.  Avoid using the projector with  bright fluorescent lighting turned on. Certain high-frequency fluo-
rescent lights can disrupt remote control operation. 
 
2. Be sure nothing obstructs the  path between the remote control and the projector. If the path be-
tween the remote control and the projector is obstructed, you can bounce the signal off certain 
reflective surfaces such as projector screens. 
 
3. The buttons and keys on the proj ector have the same functions as the corresponding buttons on 
the remote control. This user’s manual describes the functions based on the remote control.  
ITEM LABEL DESCRIPTION SEE PAGE: 
1.  IR transmitter Transmits signals to projector 
2.  Status LED  Lights when the remote control is used 
3.  Laser Press to operate the on-screen pointer 
4.  Up  Up arrow when connected through USB to a PC  
						

							 
Introduction 
 12
5.  Right  Right arrow when connected through USB to a PC 
6.  Down Down arrow when connected through USB to a PC 
7.  R (Right) R key for emulation of USB mouse right click via USB 
8.  ▲/Page+ 
(Up arrow)  Page Up key when connected through USB to a PC 
Navigates and changes settings in the OSD 
9.  ►
/Re-SYNC 
(Right arrow)  Navigates and changes settings in the OSD 
Re-Sync VGA source, adjustment for phase, tracking, size, position when \
OSD off 
10.  Page-/ ▼
 
(Down arrow)  Page Down key when connected through USB to a PC 
Navigates and changes settings in the OSD 
11.  Volume +/- 
Adjusts volume 21 
12.  3 (ZOOM) Zoom in and out 
13.  6 (AV mute) 
Display blank & Audio mute  
14.  9 (Video) Input source select Video   
15.  8 (VGA) Input source select VGA  
16.  5 (Freeze) Freeze/unfreezes the on-screen picture 
17.  7 (S-Video) 
Input source select S-Video   
18.  4 (D.Video) Input source select digital video 
19.  1 (Brightness)  Brightness menu  
20.  2 (Menu) Opens the OSD  
21.  Keystone +/-  Corrects image-trapezoid (wider top/bottom) effect 21 
22.  ◄ (Source)  Navigates and changes settings in the OSD 
Input source selection when OSD Off 
23.  ◄┘ (Enter arrow)  Changes settings in the OSD 
24.  L (Left) 
L key for emulation of USB mouse left click via USB 
25.  Left Left arrow when connected through USB to a PC 
26.  Enter Enter key when connected through USB to a PC 
27.  Power Turns the projector On or Off 
28.  Laser Use as on-screen pointer.  DO NOT POINT IN EYES.  
						

							 
Introduction 
 13
Note: 
The remote control can only interface with a co mputer when connected to the computer through a 
USB cable connection. The computer cable connects a computer to  the projector for display pur-
poses only. 
Remote Control Operating Range 
The remote control uses infrared transmission to control the projector. It is not necessary to point the 
remote directly at the projector. Provided you are not holding the remote perpendicular to the sides or 
the rear of the projector, the re mote will function well within a radius of about 10 meters (33 feet) and 
30 degrees above or below the projector level. 
Projector and Remote Control Buttons 
The projector can be operated using t he remote control or the buttons on the top of the projector. All 
operations can be carried out with t he remote control; however the buttons on the projector are lim-
ited in use. The following illustration shows the  corresponding buttons on the remote control and on 
the projector. 
 
Some buttons on the projector have  two functions. For example, item 9/11 on the projector functions 
both as the keystone  button and as the up 
arrow key in OSD menus.  
						

							 
Introduction 
 14
Inserting the Remote Control Batteries 
1. 
  Remove the battery compartment 
cover by sliding the cover in the direc-
tion of the arrow. 
 
2. Insert the supplied batteries taking 
note of the polarit
y (+/-) as shown 
here. 
 
3. Replace the cover. 
 
 
Caution:  
1. Only use AAA batteries (Alka line battery is preferred). 
 
2. Dispose of used batteries accordi ng to local ordinance regulations.  
 
3. Remove the batteries when not usi ng the projector for prolonged periods. 
  
						

							 
Setup and Operation 
 15
Setup and Operation 
Connecting Input Devices 
A PC or notebook computer as we ll as video devices can be connected to the proj ector at the same 
time. Video devices include DVD, VCD, and VHS play ers, as well as movie camcorders and digital 
still cameras. Check the user manual of the connecti ng device to confirm it has the appropriate output 
connector.  
 
 
 
ITEM LABEL DESCRIPTION 
A 
USB  Connect the USB cable from a comput er for USB mouse function and firmware 
upgrades. 
B 
AUDIO  Connect an audio cable from the computer’s audio-out connector. 
C 
S-VIDEO  Connect the S-video cable from a video device. 
D 
VIDEO  Connect a composite video cable from a video device. 
E 
VGA/SCART Connect a VGA c able from a computer. 
F 
DIGITAL 
VIDEO Connect a DIGITAL VIDEO cable from any video source 
Warning: 
As a safety precaution, disconnect all power to
 the projector and connecting devices before making 
connections.  
						

							 
Setup and Operation 
 16
Starting and Shutting down the Projector 
1.  Connect the power cord to the projector. 
2.  Turn On the  connected devices.  
 
3. 
Ensure the Power LED is steady (flashing) 
and then press the Power button to turn On 
the projector.  
 
The projector splash screen displays and 
connected devices are detected. 
If the connected device is a PC, press the 
appropriate keys on the computer keyboard 
to switch the display output to the projector. 
(Check the user manual of the PC to de-
termine the appropriate Fn key combination 
to change display output.) 
 
See “Setting an Access Password (Security 
Lock)” on page 17 if security lock is en-
abled. 
 
4. If more than one input  device is connected, 
press the  Source button repeatedly to 
switch among devices. 
(DVD and HDTV are supported through the 
VGA connector)  
 
5. 
  To turn off the projector, press the power 
button. The Power Off? / Press Power 
again
 message appears. Press the  Power 
button again to turn off the projector.  
 
Caution: 
Do not unplug the power cord until the fan stops , indicating the projector has cooled down.  
						

							 
Setup and Operation 
 17
Setting an Access Password (Security Lock) 
You can use the arrow buttons to set a passwor d and prevent unauthorized use of the projector. 
When enabled, the password must be entered a fter you power on the projector. (See Navigating the 
OSD  on page 22 and  Setting the OSD Language  on page 23 for help on using OSD menus.) 
Important: 
Keep the password in a safe place.  Without the password, you will not be able to use the projector. 
If you lose the password, contact your rese ller for information on clearing the password. 
 
1.   
Press the Menu button to open the 
OSD menu. 
2.   
Press  ◄► to move to the  SETUP 
menu.  
						

							 
Setup and Operation 
 18
3.   
Press  ▲▼ to select  Security.  
4.  
Press  ▲▼ to select  Security Setting 
and then press  ◄► to select  En-
able/Disable .  
5.  
When the security setting is  Enabled, 
you are prompted to enter a password 
soon after the projector is powered on. 
 
Note: If the incorrect password is en-
tered three times the projector auto 
shutdowns down after 10 seconds. 
 
The default password is:        
  . 
  
						

							 
Setup and Operation 
 19
6.   
To change a password, enter the previ-
ous password when prompted. 
7.   
Use the following keys , , , 
, , , , ,  to define 
a new password. 
  
						

							 
Setup and Operation 
 20
Adjusting the Projector Level 
Take note of the following when setting up the projector: 
•  The projector table or stand should be level and sturdy. 
•  Position the projector so that it is perpendicular to the screen. 
•  Ensure the cables are in a safe location. You could trip over them. 
 
1.  
To raise the level of the pr ojector, lift the projector [A] and press the height-
adjuster button  [B].  
The height adjuster drops down  [C].  
2.   To lower the level of the projector, press the height-adjuster button an\
d push 
down on the top of the projector. 
3.   To adjust the angle of the pictur e, turn the tilt adjuster  [D] right or left until de-
sired angle achieved.