16.4 (1080i) Sub-Contrast
Service DAC adjustment (CUT-G, CONT)

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This adjustment is factory set. Do not adjust unless repairs are made to associated circuit, the CRT Board or when the CRT is replaced.

PREPARATION

1. Apply a 1080i pattern (colorbar no color).

2. Set the PICTURE settings to normal.

3. Set PICTURE mode to VIVID

4. Connect the oscilloscope to TP47G.

PROCEDURE

1. In the service mode, select DAC for brightness adjustment “BRIGH” to obtain 2.0V between 0 IRE and GND level at TP47G

2. In service mode, select DAC “CONT”, and adjust data to obtain 2.5±0.1V between 0 IRE and 100 IRE level at TP47G

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