Samsung CKA4217L Service Manual page 21

5-2-3 Trapezoid Adjustment
CONDITIONS
Scanning frequency:
Display image:
Make the the test pattern rectangular.
| A - B | < 4 mm
A
B
Figure 5-2. Trapezoid
5-2-4 Parallelogram Adjustment
CONDITIONS
Scanning frequency:
Display image:
To activate the Parallelogram Adjustment
function, push both the Horizontal Position and
Vertical Position buttons and hold them in for
longer than 3 seconds, or until the power indicator
LED changes from green to blink and back to
green.
Use the Increase (+) and Decrease (–) buttons to
correct the display shape.
2.5 mm
Figure 5-3. Parallelogram
5-2-5 Side Pincushion Adjustment
CONDITIONS
Scanning frequency:
Display image:
After pushing the Side Pincushion button once,
push the Increase (+) and Decrease (–) buttons to
straighten the sides of the test pattern.
CKA42*7L/5227L
53.7 kHz/85 Hz (15")
43.8 kHz/85 Hz (14")
Crosshatch pattern
A
B
53.7 kHz/85 Hz (15")
43.8 kHz/85 Hz (14")
Crosshatch pattern
53.7 kHz/85 Hz (15")
43.8 kHz/85 Hz (14")
Crosshatch pattern
| C1 |, | C2 | ≤ 1.5 mm, | D1 |, | D2 | ≤ 1.5 mm.
D1
Figure 5-4. Pincushion
5-2-6 CRT Tilt Adjustment
TILT ADJUSTMENT (CKA5227L With Tilt)
Push the V-Posi and H-Size simultaneously until
Led blinks and back on again. Push the Increase
(+) and Decrease )–) buttons to correct the Tilt.
A
Figure 5-5. CRT Tilt Adjustment
5-2-7 Vertical Linearity Adjustment
To activate the vertical linearity adjustment, push
both the horizontal position and horizontal size
buttons and hold then in for longer than 3
seconds, or until the power indicator LED changes
from green to blink and back to green.
Use the Increase (+) and Decrease (–) buttons to
correct the display shape.
5 Alignment and Adjustments
C2
D2
C1
B
C
FRONT BEZEL
D
BACK RASTER
5-5