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Copyright © 2008 LG Electronics. Inc. All right reserved. 41 LGE Internal Use Only
Only for training and service purposes
41
Suggestion is not to adjust Green gain and offset, both will affect luminance and Gamma. We adjust Red and
Blue gain to check 85% white to see if it is within spec. Eventually the settings of RGB gain/offset will converge to
satisfy spec.
c) Maximum Luminance
After color temperature alignment, the maximum luminance should be greater than 325cd/m².
Condition:
Measurement Point: Center of screen
Measurement Distance: 50mm
Measurement Angle: 90 degree
Contrast: max (100)
Brightness: max (100)
Backlight: max (100)
Others: default
6.1.4 Alignment procedure in FA out processing
6.1.4.1 ADC Calibration
- In factory mode, choose “Factory Reset”
→
“Reset All NVRAM Setting”.
- Set Picture mode at Dynamic.
Using AV1-CVBS NTSC with Color Bar white 75% signal
a) Select input source AV1 of operation unit and plug in CVBS cable NTSC with Color Bar signal (Astro PG1
Timing968, Pattern968).
b) Press first item in factory menu “Auto Calibration”
→
“Calibrate Video” to execute calibration. (See picture
5~6)
c) The signal level from equipment (without any load) show as picture 7.
Picture 5 Picture 6