Vidikron VL-52 User Manual

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

Picture Adjust: The controls in this menu are identical to those in the main Picture Adjust 
menu, but are accessible only by entering the ISF Calibration menu passcode. This makes it 
possible to restore the picture quality settings to what they were when the DView was 
installed, simply by recalling the “ISF Night” or “ISF Day” preset.

• Brightness: Refer to Brightness on page 29. 

• Contrast: Refer to Contrast on page 30. 

• Color: Refer to Color Saturation on page 31. 

• Tint: Refer to Tint on page 31. 

• Sharpness: Refer to Sharpness on page 32.

• ADC Phase Adj.: This control works similarly to the Phase adjustment for RGB signals 

(refer to Phase on page 36). Use it to improve the apparent sharpness of 720p and 
lower-resolution Component, S-Video or Composite sources. For best results, adjust ADC 
Phase while displaying a “Sharpness” pattern (Figure 4-5). 

• DNR: Refer to DNR on page 32.

• MPEG NR: Refer to MPEG NR on page 32.

• Backlight: Refer to Backlight on page 32.

• Color Temp.: To choose a color temperature setting, select Color Temp. from the Picture 

Adjust menu and press ENTER. (Color temperature defines the “color of gray.”) The 
choices are 5400K, 6500K, 8500K and Custom. The default setting, 6500K, is appropriate 
for most situations. Higher settings produce a “bluer” picture; lower ones impart a reddish 
hue to the image.

Each color temperature setting has six (6) “white balance” parameters associated with it 
(two each for red, green and blue). (The White Balance settings for the 5400K, 6500K and 
8500K color temperatures are factory-set and cannot be changed.)

 

• Gamma: Refer to Gamma on page 33.

• Black Level: This control compensates for incoming elevated black levels present in 

certain video signals. The default setting (32) results in a minimum black level of 
approximately 0 IRE. Adjust as needed to match the dynamic range of the source; increase 
the value if blacks appear elevated (dark gray). If blacks appear “crushed” (too dark), use a 
lower settting. 

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