Samsung SYNCM.400B - Display Control Adjustments

5-2-1 Centering
Centering means to position the center point of
the display in the middle of the display area.
Horizontal size and position and vertical size and
position control the centering of the display.
Adjust the horizontal size and vertical size to their
optimal settings: 267 mm (H) x 200 mm (V) for
15”, 255 mm (H) x 191 mm (V) for 14”
Adjust the horizontal position and vertical
position to within 4.0 mm of the center point of
the screen.
l A - B l ≤ 4.0 mm.
l C - D l ≤ 4.0 mm.
5-2-1 (a) HORIZONTAL SIZE ADJUSTMENT
CONDITIONS
Scanning frequency: 53.7 kHz/85 Hz (15”)
43.8 kHz/85 Hz (14”)
Display image: Crosshatch pattern
Brightness: Maximum
Contrast: Maximum
Adjust the horizontal size of the display pattern to
267 mm (15”) and 255 mm (14”).
(Tolerance ± 3 mm.)
If horizontal size range cannot meet the spec
adjust the VR401.
5-2-1 (b) VERTICAL SIZE ADJUSTMENT
CONDITIONS
Scanning frequency: 53.7 kHz/85 Hz (15”)
43.8 kHz/85 Hz (14”)
Display image: Crosshatch pattern
Brightness: Maximum
Contrast: Maximum
Adjust the vertical size of the display pattern to
200 mm (15”) and 191 mm (14”).
(Tolerance: ± 3 mm.)
5-2-1 (c) HORIZONTAL POSITION ADJUSTMENT
CONDITIONS
Scanning frequency: 53.7 kHz/85 Hz (15”)
43.8 kHz/85 Hz (14”)
Display image: Crosshatch pattern
PROCEDURE
Center the test pattern on the raster.
5-2-1 (d) VERTICAL POSITION ADJUSTMENT
CONDITIONS
Scanning frequency: 53.7 kHz/85 Hz (15”)
43.8 kHz/85 Hz (14”)
Display image: Crosshatch pattern
Center the test pattern on the raster.
5-2-2 Linearity
Linearity affects the symmetry of images as they
appear on the screen. Unless each row or column
of blocks in a crosshatch pattern is of equal size,
or within the tolerances shown in Tables 5-1 and
5-2, an image appears distorted, elongated or
squashed.
The formular of linearity (%)
Table 5-1. Standard Modes Linearity: 800x600/85Hz
Table 5-2. Other Modes Linearity: VGA, SVGA, XGA,
MAC, etc.
5 Alignment and Adjustments
5-4 CKA42*7L/5227L
5-2 Display Control Adjustments
C
A
DISPLAY AREA
EDGE OF BEZEL
B
D
Figure 5-1. Centering
Supported Timing Mode
Each block (14 %)
Difference between
adjacent blocks (5 %)
Standard Timing Modes
Each block (10 %)
Difference between
adjacent blocks (4 %)
2 x (Max – Min)
= x 100
Max + Min