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2.10 Common Center Adjustment
1. Receive the 1 line black/white pattern computer signal with Computer1 [RGB] mode.
2. Enter the service mode.
3. Project only green light component to the screen.
4. Select item no. "13" and change data value to obtain the minimum flicker on the
screen.
5. Project only red light component to the screen.
6. Select item no. "14" and change data value to obtain the minimum flicker on the
screen.
7. Project only blue light component to the screen.
8. Select item no. "15" and change data value to obtain the minimum flicker on the
screen.
2.11 Gamma Adjustment
[PC-gamma adjustment]
1. Receive the 16-step grey scale computer signal with Computer1 [RGB] mode.
2. Enter the service mode.
3. Connect an oscilloscope to test point "TPVIDEOG" (+) and chassis ground (–).
4. Select item no. "16" and change data value to adjust amplitude "a" to be 1.6 ± 0.1V.
[AV-gamma adjustment]
1. Receive the 16-step grey scale video signal with Video [Video] mode.
2. Enter the service mode.
3. Connect an oscilloscope to test point "TPVIDEOG" (+) and chassis ground (–).
4. Select item no. "16" and change data value to adjust amplitude "a" to be 1.9 ± 0.1V.
white level
(a)
Fig. 3-10
3-13
white level
Part 3: Adjustment
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