Optoma Tx782 Projector User Manual

							
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User Controls

Setup | Security
■ First Time:
1.	The	Password	is	4	digits,	DEFAULT	VALUE	is	“1234”.	( first	time)
2.  Use number buttons on the remote to select your password, and then 
press “Enter”	key	to	confirm	your	selection.
 Change Password
1.  Press “Enter” to input old password.
2.  Use number button to enter current password, and then 
press “Enter” key again to reveal next OSD menu.
3.  Scroll down to highlight Password, and then press 
“Enter” to activate.
4.  Enter new password (4 digits in length) using the 
number buttons on the remote, then press “Enter” to 
confirm.
5.  Enter new password again and press “Enter” to confirm. 
						

							
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User Controls

 Source Lock
 On: The projector will search specified connection port.
 Off: The projector will search for other signals if the current input signal is lost. 
  High Altitude
Choose “On” to turn on High Altitude mode. Operates the fans at 
full speed continuously to allow for proper high altitude cooling of 
the projector.
 Information Hide
 On: Choose “On” to hide the searching message.
 Off: Choose “Off” to show the searching message.
 Keypad Lock
When the keypad lock function is on, the control panel will be 
locked, but the projector can still be operated by the remote 
control. If canceling this function, use the remote control or press 
the “Enter” key on the control panel for 10 seconds to turn it off.
  Background Color
Use this feature to display a “Black”, “Red”, “Blue”, “Green” or 
“White”, screen when no signal is available.
 Reset
Choose “Yes” to return the display parameters on all menus to the 
factory default settings.
Options 
						

							
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User Controls

Options | Advanced
 Signal Power On
 On: The projector will automatically power on when plug in 
any signal source to the projector at standby mode. (*)
 Off: Turn on the projector to normal mode. 
  Direct Power On
Choose “On” to turn on Direct Power On mode. The projector 
will automatically power on when AC power is supplied, without 
pressing the “Power/Standby” key on the projector control panel 
or “” key on the remote control.
 Auto Power Off
Sets the countdown timer interval. The countdown timer will start, 
when there is no signal being sent to the projector. Then projector 
will automatically power off when the countdown has finished (in 
minutes). 
 Sleep Timer
Set the countdown timer interval. The timer will begin, with or 
without a signal input. Then the projector will automatically  
power off then the sleep timer countdown has finished.  
(in minutes) 
 Eco. Standby (5W)
Choose “On” to save power dissipation further(5W)
	When Economic Standby Mode is enabled (
						

							
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User Controls
Options | 
Lamp Settings
 Lamp Hours
Display the projection time.
 Lamp Reminder
Choose this function to show or to hide the warning message 
when the changing lamp message is displayed. The message will 
appear 30 hours before suggested replacement of lamp. 
 Brightness Mode
 STD: Choose “STD” to dim the projector lamp which will lower 
power consumption and extend the lamp life by up to 
130%. 
 Bright: Choose “Bright” to increase the brightness.
 Lamp Reset
Reset the lamp life hour after replacing the lamp. 
						

							
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Appendices
Image Problems
 No image appears on-screen
 Ensure all the cables and power connections are correctly and 
securely connected as described in the “Installation” section.
 Ensure all the pins of connectors are not bent or broken.
 Check if the projection lamp has been securely installed. Please 
refer to the “Replacing the lamp” section.
 Make sure you have removed the lens cap and the projector is 
switched on.
 Ensure that the “AV mute” feature is not turned on.
 Partial, scrolling or incorrectly displayed image
 Press “Re-Sync” on the remote.
 If you are using a PC:
 For Windows 95, 98, 2000, XP:
1.  Open the “My Computer” icon, the “Control Panel” folder, and 
then double click on the “Display” icon.
2.  Select the “Settings” tab.
3.  Verify that your display resolution setting is lower than or equal 
to UXGA (1600 x 1200). (*)
4.  Click on the “Advanced Properties” button.
If the projector is still not projecting the whole image, you will also 
need to change the monitor display you are using. Refer to the fol-
lowing steps.
5.  Verify the resolution setting is lower than or equal to UXGA 
(1600 x 1200).
Troubleshooting
	If	you	experience	a	problem	with	your	projector,	
please	refer	to	the	following	information.	If	a	
problem	persists,	please	contact	your	local	
	
reseller	or	service	center.	
	
(See	pages	57-58	for	details)
	(*) The resolution XGA (1024 x 768) is recommended for computer signal. 
						

							
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Appendices

 6.  Select the “Change” button under the “Monitor” tab.
  7.  Click on “Show all devices”. Next, select “Standard monitor 
types” under the SP box; choose the resolution mode you need 
under the “Models” box. 
  8.  Verify that the resolution setting of the monitor display is 
lower than or equal to UXGA (1600 x 1200). (*)
 If you are using a Notebook:
  1.  First, follow the steps above to adjust resolution of the 
 
computer.
  2.  Press the toggle output settings. Example: [Fn]+[F4]
   
 
 If you experience difficulty changing resolutions or your monitor 
freezes, restart all equipment including the projector.
 The screen of the Notebook or PowerBook computer is not 
displaying your presentation
 If you are using a Notebook PC
Some Notebook PCs may deactivate their own screens when a 
second display device is in use. Each has a different way to be  
reactivated. Refer to your computer’s manual for detailed  
information.
 Image is unstable or flickering
 Use “Phase” to correct it. See page 34 for more information.
 Change the monitor color setting on your computer.
 Image has vertical flickering bar
 Use “Frequency” to make an adjustment. See page 34 for more 
information.
 Check and reconfigure the display mode of your graphic card to 
make it compatible with the projector. 
	(*) The resolution XGA (1024 x 768) is recommended for computer signal.
Acer    
[Fn]+[F5]
Asus   [Fn]+[F8]
Dell    [Fn]+[F8]
Gateway  [Fn]+[F4]
Mac Apple: System Preference  Display  Arrangement  Mirror display
IBM/Lenovo   [Fn]+[F7]
HP/Compaq   [Fn]+[F4]
NEC     [Fn]+[F3]
Toshiba     [Fn]+[F5] 
						

							
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Appendices

 Image is out of focus
 Make sure the lens cap is removed.
 Adjusts the Focus Ring on the projector lens. 
 Make sure the projection screen is between the required distance 
3.9 to 32.8 feet (1.2 to 10.0 meters) from the projector.  
See page 18.
 The image is stretched when displaying 16:9 DVD title
When you play anamorphic DVD or 16:9 DVD, the projector will 
show the best image in 16:9 format on projector side.
If you play 4:3 format DVD title, please change the format as 4:3 
in projector OSD.
If the image is still stretched, you will also need to adjust the 
aspect ratio by referring to the following:
 Please setup the display format as 16:9 (wide) aspect ratio type on 
your DVD player.
 Image is too small or too large
 Adjust the Zoom Ring on the top of the projector.
 Move the projector closer to or further from the screen.
 Press [Menu] button on the remote control or projector panel, go 
to “Display  Format” and try the different settings.
 Image has slanted sides
 If possible, reposition the projector so that it is centered on the 
screen and below the bottom of the screen.
 Press [Keystone] button on the remote control or press [ ] 
on the projector panel, until the sides are vertical .
 Image is reversed
 Select “Setup  Projection” from the OSD and adjust the  
projection direction.
	Use of Keystone is not recommended. 
						

							
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Appendices

Intermission Problems
 The projector stops responding to all controls
 If possible, turn off the projector, then unplug the power cord and 
wait at least 60 seconds before reconnecting power.
 Lamp burns out or makes a popping sound
 When the lamp reaches its end of life, it will burn out and may  
make a loud popping sound. If this happens, the projector will not 
turn on until the lamp module has been replaced. To replace the 
lamp, follow the procedures in the “Replacing the Lamp” section 
on pages 50-51.
 
Projector Status Indication
 
 LED lighting message
MessagePower LEDTemp-LEDLamp-LED
(Blue/Red)(Red)(Red)
Standby State
(Input power cord)Red
Power on (Warming)Flashing Blue
Lamp lightingBlue
Power off (Cooling) Flashing Red
Error (Over Temp.)
Error (Fan fail)Flashing
(0.5s on, 0.5s off)
Error (Lamp fail)
Steady light      No light   
						

							
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Appendices

 Message Reminders
 
 Fan failed:
 
 Temperature warning:
 
 Replacing the lamp:
 
 Status Message:
 
 
Remote Control Problems
 If the remote control does not work
 Check the operating angle for the remote control is approximately 
±22.5°.
 Make sure there are no obstructions between the remote  
control and the projector. Move to within 6 m (20 ft) of the  
projector.
 Make sure the batteries are inserted correctly.
 Replace weak batteries in the remote control. 
						

							
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Appendices

Replacing the lamp
The projector automatically detects the lamp life. When the 
lamp life is nearing the end of use, you will receive a warning 
message.
When you see this message, please contact your local reseller 
or service center to change the lamp as soon as possible. Make 
sure the projector has been cooled down for at least 30 min-
utes before changing the lamp. 
 Warning: Lamp compartment may be hot! Allow it to cool 
down before changing the lamp!
 Warning: To reduce the risk of personal injury, do not drop the lamp module or touch the lamp bulb. The bulb may  shatter and cause injury if it is dropped.
 Warning: If ceiling mounted, please use caution when  
opening the lamp access panel. It is recommended to wear 
safety glasses if changing the bulb when ceiling mounted. 
“Caution must be used to prevent any loose parts from falling 
out of projector.”