Isf; Gain And Offset - Runco RS-900 Owner's Operating Manual

Default: To restore all Setup Menu options to their factory-default values, select Default
and press the button to highlight "Yes." Then, press ENTER.
To access the ISF Calibration menu, select ISF from the Main Menu and press ENTER.
Use the number buttons on the remote control to enter the ISF Calibration menu
passcode when prompted and press ENTER again. Then, press MENU on the remote
control.
This menu should be used by ISF-certified technicians only.
Note
Picture Memory/Copy Settings: These settings are described in the Picture Adjust
section (page 48).
Brightness/Contrast/Color/Tint/Sharpness/Color Temperature: These settings are
described in the Picture Adjust section (refer to page 48).
White Balance: To remove any trace of color from the white areas of the projected
image, select the "Custom 1" or "Custom 2" Color Temperature. Then, choose White
Balance from the ISF menu and press ENTER.
• 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,
green or blue, 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, green or blue, decrease the Offset for that color.
The Gain controls increase or decrease the full-scale input range; the Offset controls
shift the entire range, resulting in a change in brightness. Figure 4-8 shows how the
Gain and Offset controls interact with each other.
1.0
0.5
0
0
Figure 4-8. Gain and Offset
Runco RS-900 Owner's Operating Manual
OFFSET = 1023
OFFSET = 512
OFFSET = 0
OFFSET = 1023
OFFSET = 512
OFFSET = 0
1023
GAIN
61
Operation

ISF

ISF
Picture Memory ISF Night
Copy Settings
Brightness
Contrast
Color
Tint
Sharpness
Color Temperature
White Balance
Advanced Options
Reset to Defaults
>
50
50
50
0
5
6500
>
>