Vidikron v120 ユーザーズマニュアル

Use the Calibration menu to perform advanced picture quality adjustments. This menu 
should be used by ISF-certified technicians only. 

To recall the ISF Night or ISF Day settings, select “ISF Night” or “ISF Day” from the ISF Presets 
menu (see page 58) or use the corresponding buttons on the remote control. 

ISF Night - Display Color: Use the Display Color settings to adjust the color balance at the 
projector output. These settings are saved independently for each input.

• Gain: Use the Gain controls to correct color imbalances in the bright areas of the image. A 

good way to do this is to use a test pattern consisting mostly of solid white areas, such as 
an 80 IRE “window” pattern. If the white areas contain traces of red (Pr), green (Y) or blue 
(Pr), decrease the Gain for that color.

• Offset: Use the Offset controls in the White Balance sub-menu to correct color imbalances 

in the dark areas of the image. A good way to do this is to use a test pattern consisting 
mostly of dark gray areas, such as a 30 IRE “window” pattern. If the gray areas contain 
traces of red (Pr), green (Y) or blue (Pr), decrease the Offset for that color.

• Gamma: “Gamma” is a global setting that determines how gray shades are displayed 

between minimum input (black) and maximum input (white) for all signals. A good 
gamma setting helps to optimize blacks and whites while ensuring smooth transitions for 
the “in-between” values utilized in other grays. Unlike “Brightness” and “Contrast” 
controls, the overall tone of your images can be lightened or darkened without changing 
the extremes and all images will be more vibrant while still showing good detail in dark 
areas. 

In all but the most unusual situations, the appropriate “Color Temp” selection (see below) 
will produce accurate colors and a satisfying contrast level. However, it is sometimes 
necessary to adjust the red, blue and green gamma curves individually. To do this, select 
Gamma from the Display Color sub-menu and use the left- and right-arrow buttons to 
manipulate the on-screen slidebars. 

• Color Temp: Select Color Temp from the Display Color menu to adjust the color 

temperature. The default setting is appropriate for most situations. Higher settings 
produce a “bluer” picture.

ISF Night - Input Image: The Input Image controls are similar to those in the Picture menu, 
but are accessible only by entering the Calibration menu passcode. This makes it possible to 
restore the picture quality settings to what they were when the projector was installed, 
simply by recalling the “ISF Night” preset.