16.2 (1080i) Sub-Brightness Service DAC adjustment (BRIGHT)
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Adjustment of this control is important for setting proper operation of customer brightness and picture controls. Do not adjust the SCREEN VR after the sub-brightness is set.
Preparation
Normalize picture settings.
Picture mode set to VIVID.
Switch NATURAL COLOR to OFF.
Switch COLOR TEMPERATURE to COOL.
Procedure
Apply a colorbar with no color pattern.
In the service mode for making electronic adjustments, select the DAC adjustment “BRIGHT” and adjust data so that 7.5IRE part is the same light output as the 3IRE part