Samsung PN17K Series Service Manual page 14

4 Alignment and Adjustments
4-2-4 (c) HORIZONTAL POSITION ADJUSTMENT
CONDITIONS
Scanning frequency:
Display image:
Use control bar after selecting "H-POSITION" in
left menu to center the horizontal image on the
raster.
4-2-4 (d) VERTICAL POSITION ADJUSTMENT
CONDITIONS
Scanning frequency:
Display image:
Use control bar after selecting "V-POSITION" in
left menu to center the vertical image on the
raster.
4-2-5 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 Table 4-2 , an
image appears distorted, elongated or squashed.
Horizontal Linearity = 2x
Y max-Y min
Vertical Linearity = 2x
Y max+Y min
Table 4-1
Adjacent Linearity Entire Linearity
Preset mode
Pre-load mode (48kHz~)
Pre-load mode (under 48kHz)
Preset Mode : 68KHz / 85Hz
Pre-load Mode : Refer to Timing Chart
4-4
68 kHz/85 Hz
Crosshatch pattern
68 kHz/85 Hz
Crosshatch pattern
X max-X min
x100
X max+X min
x100
≤ 4% ≤ 8%
≤ 5% ≤ 10%
≤ 5% ≤ 14%
4-2-5 (a) HORIZONTAL LINEARITY ADJUSTMENT
CONDITIONS
Scanning frequency:
Display image:
Brightness:
Contrast:
To adjust the Horizontal Linearity, refer to Table
4-1 for the tolerance range.
Increase or decrease H_LIN to optimize the
image.
4-2-5 (b) VERTICAL LINEARITY ADJUSTMENT
CONDITIONS
Scanning frequency:
Display image:
Brightness:
Contrast:
To adjust the Vertical Linearity, refer to Table 4-1
for the tolerance range.
Use control bar after selecting "V-LINEARITY
BAL" in left menu to optimize the image.
68 kHz/85 Hz
Crosshatch pattern
Maximum
Maximum
68 kHz/85 Hz
Crosshatch pattern
Maximum
Maximum
PN17K*/PN17J*