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6 Alignment and Adjustments
6-2-4 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 amber to green and back to
amber.
Use the Increase (+) and Decrease (–) buttons to
correct the display shape.
2.5 mm
Figure 6-5. Parallelogram
6-2-5 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.
| C1 |, | C2 | ≤ 1.5 mm, | D1 |, | D2 | ≤ 1.5 mm.
D1
Figure 6-6. Pincushion
6-2-6 CRT Tilt Adjustment
TILT ADJUSTMENT
To activate the tilt adjustment, push both the
vertical position and horizontal size buttons and
hold then in for longer than 3 seconds, or until the
power indicator LED changes from amber to
green and back to amber.
Use the Increase (+) and Decrease (–) buttons to
correct the display shape.
6-4
53.7 kHz/85 Hz
Crosshatch pattern
53.7 kHz/85 Hz
Crosshatch pattern
C2
D2
C1
A
Figure 6-7. CRT Tilt Adjustment
6-2-7 Pin Balance Adjustments
To activate the pin balacne function, 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
amber to green and back to amber.
Use the Increase (+) and Decrease (–) buttons to
correct the display shape.
6-2-8 Degauss
Push the contrast and brightness buttons
simultaneously. The degaussing circuit can
effectively function only once per 30 minutes. If
available, use an external degaussing coil during
servicing.
WARNING: Do Not hold the Degauss button
down for longer than 3 seconds. If
you do, it resets all of the data in
the user memory area. If this
occurs, you must remake the user
adjustments.
6-2-9 Delete User Mode Data
To delete the picture data from the user modes,
push the Degauss button for 5 or more seconds.
6-2-10 Recall
To delete the picture data from current user mode,
push the Recall button.
B
C
FRONT BEZEL
D
BACK RASTER
CKE5507L/LM
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