Panasonic CT-24SL14J Service Manual page 29

2. If the horizontal center is not aligned, in service mode adjust "H
POS" DATA to adjust the horizontal center of the monoscope
pattern to the CRT center.
3. Verify that horizontal width (A & B mark) is within 4.5 ± 0.7.
12.5.2. Vertical linearity(V-C), V-Size and V-Position adjustment
PREPARATION
1. Apply a crosshatch pattern
2. Normalize the picture settings.
PROCEDURE
1. Enter service mode, select DAC adjustment / "V-POS" and adjust
monoscope pattern to the center vertical position of the CRT
center mark.
2. Adjust linearity data "V-C" so that interval of "a" is same as "b" (a=
b).
3. If the v-position is not at the CRT center, adjust / V position "V
POS" DATA again.
4. Apply a monoscope pattern.
5. Confirm that center horizontal line is in center mark on CRT.
6. Adjust "VEAMP" register for correct vertical size by making
monoscope round circle leaving 4 marks off the CRT edge.
Vertical centering adjustment.
29