Samsung AP17K series Manual page 12

4-2-4 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 4-2 and
4-3, an image appears distorted, elongated or
squashed.
Table 4-1. Standard Modes Linearity: 640x480/85Hz,
800x600/85Hz and 1024x768/85Hz
Standard Modes Linearity
Each block (10 %)
Horizontal: 20.9~23.1
4 : 3
Vertical : 20.9~23.1
Horizontal: 19.60~21.65
5 : 4
Vertical : 20.9~23.1
Table 4-2. Other Modes Linearity: VGA, SVGA, XGA,
MAC, etc.
Each block (14 %)
Horizontal: 20.5~23.5
4 : 3
Vertical : 20.5~23.5
Horizontal: 19.18~22.07
5 : 4
Vertical : 20.5~23.5
4-2-4 (a) HORIZONTAL LINEARITY ADJUSTMENT
CONDITIONS
Scanning frequency:
Display image:
Brightness:
Contrast:
To adjust the Horizontal Linearity, refer to Tables
4-2 and 4-3 for the tolerance range.
Increase or decrease H_LIN to optimize the
image.
4-2-4 (b) VERTICAL LINEARITY ADJUSTMENT
CONDITIONS
Scanning frequency:
Display image:
Brightness:
Contrast:
To adjust the Vertical Linearity, refer to Tables 4-2
and 4-3 for the tolerance range.
Use control bar after selecting "V-LINEARITY
BAL" in left menu to optimize the image.
AP17K*/AP17J*
Difference between
adjacent blocks (4 %)
Horizontal: Less than 0.88 mm
Vertical : Less than 0.88 mm
Horizontal: Less than 0.82 mm
Vertical : Less than 0.88 mm
Supported Timing Mode
Difference between
adjacent blocks (5 %)
Horizontal: Less than 1.10 mm
Vertical : Less than 1.10 mm
Horizontal: Less than 1.03 mm
Vertical : Less than 1.10 mm
68 kHz/85 Hz
Crosshatch pattern
Maximum
Maximum
68 kHz/85 Hz
Crosshatch pattern
Maximum
Maximum
4-2-5 Trapezoid Adjustment
CONDITIONS
Scanning frequency:
Display image:
Brightness:
Contrast:
Use control bar after selecting "TRAPEZOID" in
left menu to make the image area rectangular.
| A - B | < 4 mm
A
B
Figure 4-4. Trapezoid
4-2-6 Pinbalance Adjustment
CONDITIONS
Scanning frequency:
Display image:
Brightness:
Contrast:
D1
Figure 4-5. Pinbalance
Use control bar after selecting "PINBALANCE" in
left menu to optimize the image.
4 Alignment and Adjustments
68 kHz/85 Hz
Crosshatch pattern
Maximum
Maximum
A
B
68 kHz/85 Hz
Crosshatch pattern
Maximum
Maximum
D2 D1
4-3