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16. Service adjustments (electronic controls)
NOTE
Please correlate with available pattern on all adjustments
16.1. (NTSC) Sub-Brightness / Service DAC adjustment (BRIGHT)
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
1. Normalize picture settings.
2. Picture mode set to VIVID.
3. Switch NATURAL COLOR to OFF.
4. Switch COLOR TEMPERATURE to COOL.
Procedure
1. Apply a colorbar with no color pattern.
2. 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
Bars pattern
38
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