Horizontal Phase Adjustment; Horizontal Size Adjustment - Panasonic PT-51G44A Service Manual

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Centering Magnets Adjustment
Horizontal Phase Adjustment
1. Normalize Picture Menu video.
2. Set the receiver to Serviceman Adjustment mode.
3. Apply a monoscope pattern.
4. Cover both red and blue lens so that only the green
lens is projecting the monoscope pattern.
5. Adjust H. Size to minimum adjusting DAC V4.
6. Adjust DAC C9 (H. Center) so that the left and right
horizontal center line are equal.
7. Use DAC V4 (Horizontal Size) to adjust left and
right area to show 5 lines. (Figure 25).
Figure 25. Pattern
Procedures
1. Apply a monoscope pattern.
2. Cover the red and blue lens so only the green lens
is projecting the monoscope pattern.
3. In serviceman adjustment mode select DAC:VO
then press "VOL" left or right key to enter the static
convergence menu. Adjust all horizontal and
vertical RGB data (GV GH, RV, RH, BV, BH to 0).
4. Select DAC V1 and set to 1.
5. Press
"0"
then "Action" then "5" on remote control.
6. Loosen the deflection coil screw on the Green
C RT.
7. Adjust the green pattern to be equal on left and
right with the grid horizontal center line. Also adjust
for horizontal and vertical tilt.
Note: Push deflection coil to top of CRT
neck, then tighten deflection screw after
adjusting each CRT centering and Tilt.
8. Uncover the red lens and project red only. Repeat
steps 5, 6 and 7.
9. Using the red deflection coil, adjust until the red
monoscope pattern center is at the appropriate
distance as indicated on Figure 26
PT-51 Gxx 28 mm
PT-61Gxx 17 mm
10. Transfer the cap from blue to red, so blue and
green are projected.
11. Using the blue deflection coil adjust until the blue
pattern center is at the correct distance right from
the center of the green cross hatch (Figure 26)
12. Transfer lens cap to project green.
e
13. Press "TVNideo" on remote control 3 times to
display the "OSD Pos ADJ" mode.
14. Adjust the
"+"
position of OSD to be at the center of
pattern by pressing "CH" or "VOL" on remote
control.
15. Press "7" then "Action" on remote control.
16. Press "Power" then "Action" on remote control to
exit Digital Convergence adjustment mode.
17. Following the adjustment, make sure that all
deflection coils are pushed completely toward the
CRT cones and that all screws are tightened.
Horizontal Size Adjustment
This is the manual adjustment of horizontal size that is
included in the automatic convergence adjustment.
1. Apply a monoscope pattern.
2. Cover both red and blue lens.
C
3. In serviceman mode, select DAC V1 and press
"Volume" key (convergence adjustment mode
Turns On).
4. Store current convergence data from template P-1
(working) to template P-2 (storage):
a. Press the "8" key to enter the copy mode.
b. Select P-1 with the direction kevs.
c.
Press "Action".
d. Select P-2 using the arrow keys.
-
e. Press "Action"
6
store data.
5. To store the data: Press the "7" key then "Action".
6. To exit convergence adjustment mode: Press
"Power" then "Action"
.
7. Adjust DAC V4 (H. Size) so that the horizontal size
is 5 lines at the right side of the screen.
8. Remove the lens caps from the red and blue lens.
9. To restore original data
a) Enter the convergence mode again with V1 se-
lection and Volume up key.
a. Press "8".
b. Select P-2.
c. Press "Action".
d. Select P-1.
e. Press "Action".
f.
Press "7" and "Action" to save.
g. Press
"Power"
and
"Action"
to
exit
convergence adjustment mode.
WARNING: To delete all convergence data
from memory: Press the "9" key then
"Action". Do
not
perform this operation
unless all dataisneeded to be reentered!
Figure 26. H. Phase Adjustment.
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20
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