Optoma tx780 User Manual

2

  Colour Temperature

Adjusts the colour temperature. At higher temperature, the screen 

looks colder; at lower temperature, the screen looks warmer.
Each display mode has its own colour temperature and can memo-

rize user’s selection. For example:

When you adjust the colour setting item, the colour temperature 

will be set as “User” automatically. And this set “User” is the same 

for all display mode. (See the section of “Colour Setting” for details).

  Saturation

Adjusts a video image from black and white to fully saturated 

colour.



 Press the   to decrease the amount of saturation in the image.



 

Press the   to increase the amount of saturation in the image.

  Sharpness 

Adjusts the sharpness of the image.



 Press the   to decrease the sharpness.



 Press the   to increase the sharpness.

  Frequency

“Frequency” changes the display data frequency to match the 

frequency of your computer’s graphic card. If you experience a 

vertical flickering bar, use this function to make an adjustment.

  Phase

“Phase” synchronizes the signal timing of the display with the 

graphic card. If you experience an unstable or flickering image, use 

this function to correct it.

  H. Position (Horizontal Position)



 

Press the   to move the image left.



 

Press the   to move the image right.

  V. Position (Vertical Position)



 

Press the   to move the image down.



 

Press the   to move the image up.

  Degamma

This allows you to choose a degamma table that has been fine-tuned 

to bring out the best image quality for the input.

  Aspect Ratio

Use this function to choose your desired aspect ratio.



 

4:3 : The input source will be scaled to fit the projection screen. 



 

16:9 : The input source will be scaled to fit the width of the 

screen.



 

Window: When a 4:3 image is bigger than a 16:9 screen, select 

the “Window” mode to fit the image onto the screen without 

changing the projection distance.



“Frequency”, 

“Phase”, “H. 

position” and 

“V. position” 

functions are only 

supported under 

Computer mode.