6J PC Offset adjustment

AV Gain adjustment

1. Receive the 16-step gray scale computer signal.

2. Set to COMPUTER mode.

3. Enter the service mode.

4. Connect an oscilloscope to test point "TP25R1" (+) and chassis ground (-).

5. Select group no. "3", item no. "11" and change data value to adjust the waveform "a" (black portion ) to be maximum amplitude.

6. Connect an oscilloscope to test point "TP25G1" (+) and chassis ground (-).

7. Select group no. "3", item no. "12" and change data value to adjust the waveform "a" (black portion ) to be maximum amplitude.

8. Connect an oscilloscope to test point "TP25B1" (+) and chassis ground (-).

9. Select group no. "3", item no. "13" and change data value to adjust the waveform "a" (black portion ) to be maximum amplitude.

Black Level

1. Receive the 16-step gray scale video signal.

2. Set to VIDEO mode.

3. Enter the service mode.

4. Connect an oscilloscope to test point "TP25R1" (+) and chassis ground (-).

5. Select group no. "2", item no. "3" and change data value to adjust waveform "a" to be minimum amplitude.

6. Connect an oscilloscope to test point "TP25G1" (+) and chassis ground (-).

7. Select group no. "2", item no. "4" and change data value to adjust waveform "a" to be minimum amplitude.

8. Connect an oscilloscope to test point "TP25B1" (+) and chassis ground (-).

9. Select group no. "2", item no. "5" and change data value to adjust waveform "a" to be minimum amplitude.

White Level

White Level

Black Level

PC Gain adjustment

+1 0

Post a comment