Optoma Tx785 Projector User Manual

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Rear View
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1235674
1617
8910
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1520
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25
26
Introduction
1. Temp LED14. 12V OUT A/B Connector
2. Lamp LED 15. AUDIO IN L/R RCA (YPbPr) Connectors
3. DVI-D Connector 16. AUDIO IN L/R RCA (Video/ S-Video) Connectors
4. VGA 2/ YPbPr Connector 17. VIDEO Connector
5. HDMI Connector 18. S-VIDEO Connector
6. USB Connector 19. YPbPr Connectors
7. RJ-45 Connector 20. BNC Connectors
8. AUDIO IN (VGA2) Connector 21. Power Socket
9. VGA OUT 22. Main Power Switch
10. AUDIO OUT 3.5mm Jack 23. AUDIO IN (VGA1) Connector
11. Back IR Receiver 24. VGA 1/ SCART/ YPbPr Connector
12. AUDIO IN (BNC) Connector 25. Power Button
13. RS-232 Connector 26. Power LED 
						

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Remote Control
 
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 t
D 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 y
Vo l u m e
、、、、
1
 

  
  0
Enter/Help
Brightness
10
6
2
3
5
7
4
9
23
1819
26
27
28
29
16
15
1720
21
22
11
12
13
24
25
14
8
11. AV Mute
2. Power On/Off
3. Re-Sync
4. Freeze
5. Keystone
6. Page Up
7. Volume +/-
8. Page Down
9. PC/Mouse control
10. Mouse Right Click
11. Enter/Help
12. Four Directional Select Keys
13. Format/1 (Number Button  for password input)
14. Source/4
15. Component/3
16. VGA-1/7
17. VGA-2/0
18. S-Video/9
19. BNC/6
20. Video/8
21. DVI/5
22. HDMI/2
23. Brightness
24. Menu
25. Mouse Left Click
26. Zoom Out
27. Zoom In
28. Display
29. Laser Pointer
Introduction
Due to the 
difference in  
applications 
for each 
country, 
some regions 
may have 
different  
accessories.
v 
						

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Connecting the Projector
Connect to Computer / Notebook
1. Power Cord
2. VGA2 Cable
3. VGA1 Cable
4. Audio-in Cable
5. DVI-D Cable (Optional)
6. HDMI Cable (Optional)
7. USB Cable
8. VGA-out Cable (Available for VGA1 VGA signal loop through)
9. Audio-out (Optional RCA to 3.5mm jack cable)
10. RS-232 Cable (Optional)
11. BNC Cable
v Due to the  
difference in  
applications 
for each  
country, some 
regions may 
have different 
accessories.
Installation
4
1
528310976
11 
						

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Connect to Video Sources
1. Power Cord
2. Component Cable (Optional)
3. DVI-D Cable (Optional)
4. HDMI Cable (Optional)
5. BNC Cable (Optional)
6. Audio-in Cable
7. Audio-in Cable
8. Video Cable (Optional)
9. S-Video Cable (Optional)
10.
VGA Cable
11.SCART to RGB & S-Video Adapter (Optional)
12.RGB to Component Adapter (Optional) 
4
DVD Player, Set-top Box, HDTV receiver
DVD Player, Set-top Box, HDTV receiver
4
1
234
799
11
8
56
Video Output
1210
2
Installation
Due to the  
difference in  
applications 
for each  
country, 
some regions 
may have 
different  
accessories.
v 
						

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Caution 
• Do not shake or place excessive pressure on the projector or the lens components as the projector and lens components contain  
precision parts.
• Before removing or installing the lens, be sure to turn off the   projector, wait until the cooling fans stop, and turn off the main 
power switch.
• Do not touch the lens surface when removing or installing the lens.
• Keep fingerprints, dust or oil off the lens surface. Do not scratch  the lens surface.
• Work on a level surface with a soft cloth under it to avoid scratching.
• If you remove and store the lens, attach the lens cap to the   projector to keep off dust and dirt.
Installing or Removing the Optional Lens
1.  Push down and  
release the top cover 
to open.
2.  Push the LENSE 
RELEASE button to 
the unlock position.
3.  Grasp the lens.
4.  Rotate the lens  
counterclockwise. 
The existing lens will 
be disengaged.
Removing the Existing Lens From the Projector
Installation  
						

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5. Pull out the existing 
lens slowly.
Installing the New Lens
1.  Align the notches and  
correctly position the 
electrical contact pad as 
shown in the picture.
2. Rotate the lens  
clockwise until you feel 
it click into place.
Pin of 
IRIS
v Pin of IRIS 
should be in 
the direction as 
shown in the 
picture.
Installation 
						

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Powering On/Off the Projector
Powering On the Projector
1. Remove the lens cover.
2. Connect the power cord to the projector.
3. Turn On the connected devices.
4. Ensure the Power LED turns amber and then press the power  button to turn On the projector. 
The Power LED will now flash blue.  
 
The startup screen will display in approximately 30 seconds. The 
first time you use the projector, you can select your preferred lan -
guage and Power Mode setup after the startup screen display. 
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 determine the appropriate Fn 
key combination to change display output.)  
 
v Turn on the 
projector first 
and then  
select the  
signal sources. 
First time to 
turn on the 
projector: 
Remember to 
select the type 
of lens you 
have installed. 
Detail see page 
51.
Installation 
						

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See Security Setting on page 43 if security lock is enabled. 
5. If more than one input device is connected, press the “Source” \
button sequentially to switch between devices.  
For direct source selection, see page 28. 
Installation 
						

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Powering Off the Projector
1. Press POWER  to turn off the projector lamp, a message displays on the 
projector’s screen.
2. Press  POWER again to confirm, otherwise the message disappears 
after 15 seconds. 
3. 
The cooling fans continue to operate for about 10 seconds for cooling  cycle
  and  the  Power  Led  will  turn  blue.  When  the  light  is  solid 
amber, the projector has entered standby mode.
(If you wish to turn the projector back on, you must wait until the 
projector has completed the cooling cycle and has entered standby 
mode. Once in standby mode, simply press  POWER to restart the 
projector.)
4. Turn off the main power switch. Disconnect the power cord from  the electrical outlet and the projector.
5.  Do  not  turn  on  the  projector  immediately  following  a  power  off  procedure.
Warning Indicator
v When the LAMP LED indicator lights red, the projector will   automatically shut itself down. Please contact your local reseller 
or service center. See pages 65-67.
v When the TEMP LED is on a steady (not flashing) red, the   
projector will automatically shut itself down. Under normal  
conditions, the projector can be switched on again after it has 
cooled down. If the problem persists, you should contact your  
local dealer or our service center. See pages 65-67.
v When the TEMP LED flashes red, it indicates the fan has failed.  Please contact your local dealer or our service center. See pages 
65-67.
Installation 
						

							English0
Adjusting the Projected Image
Adjusting the Projector’s Height
The projector is equipped with elevator foot for adjusting the image height.
To raise the image:
Use screw in foot u to rise the image to the desired height angle 
and fine-tune the display angle. 
To lower the image:
Use screw in foot  u to lower the image to the desired height angle 
and to fine-tune the display angle.
11
Adjusting Projected Image Position 
Using PureShift
Horizontal Lens 
Shift Lever
Vertical Lens 
Shift Lever
Lens Release
Installation