Samsung CS-21Z57MN Service Manual page 24

Alignment & Adjustment
3-4-2 Adjusting the Picture Straight Lines
① Display the Cross Hatch pattern.
② Adjust settings other than V-AMP, V-SHIFT, H-AMP and H-SHIFT so that straight lines are displayed without curves.
③ Adjust BOW and the Angle settings so that the center line
becomes a straight line.
⑤ Adjust the Upper Corner and the Low Corner settings so that
the end of the lines become straight.
⑦ When the adjustments are complete, display the Lion pattern and check that the picture size has not been changed.
If there is no change, finish the adjustments.
3-10
④ Adjust the H-Parabola and H-Trapezium settings so that
the left and right lines become straight.
⑥ Adjust the V-Linearity and V-SC settings so that the
intervals of the horizontal lines become uniform.
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