Samsung TXJ1366 specifications Sub-Contrast Adjustment, Sub-Tint Adjustment, Sub-Color Adjustment

Alignment and Adjustments

4-2-8 Sub-Contrast Adjustment

1.Input a gray scale pattern. Use a pattern generator (PM5518).

2.Short D208 to switch off the ABL feed-back.

3.Check CN201 R-OUT with an oscilloscope.

4.Set RC, BC, GC data to 0 in the Service Mode.

5.Adjust SCT to 2.40 ± 0.1Vp-p

2.5V+ 0.1Vpp

6.Remove the short across D208 and restore ABL.

4-2-9 Sub-Tint Adjustment

1.Input a rainbow pattern.

2.Check CN201 B-OUT with an oscilloscope.

3.Adjust STT in the service mode until the 6th peak is the highest and the 5th and 7th peaks have equal heights.

4	5	6	7	8
3				9 10
2

1

4-2-10 Sub-Color Adjustment

1.Do sub-color adjustment after the Sub- Contrast and Sub-Tint adjustments.

2.D208 should still be shorted. The ABL should still be switched OFF.

3.Input a color bar pattern. Use a pattern gen- erator (PM5518).

4.Check CN201 R-OUT (use an oscilloscope).

5.Ensure that the RC, GC and BC data are 0. BG are 140 and GG should be 90.

6.Adjust SCR to 2.4 ± 0.1Vp-p (black and red levels).

7.Remove the short across D208 and restore ABL.

2.4V+ 0.1Vpp

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