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Service Manual
.
28. Perform adjustments for red so that red overlaps
green, do not move green.
29. Press “1 or 3” on the remote until Yellow (Red and
Green) and blue appears, do not move green or
red.
30. Perform adjustments so that blue overlaps Yellow
(Red and Green).
31. Press “1 or 3” key on remote to display red, green
and blue (White).
32. At this point the crosshatch pattern should look
white
33. If the crosshatch pattern is not only white, repeat
adjustment for that color (Red or Blue)
34. Once the crosshatch pattern looks only white,
perform the adjustments for White (“POINT”,
“ORIG. POINT” & “LINE”), notice that each
adjustment is only for white (Red,Green,Blue)
35. Adjust white for a good line distribution and make
lines completely straight.
36. Press “7” key on remote, then ACTION to save
changes.
37. Press POWER then ACTION to exit adjustments.
Horizontal and Vertical Size Check
1.
Apply monoscope pattern.
2.
Confirm that horizontal size is 5
±
0.2 lines at “A”
and “B” and that vertical size is 3.5
±
0.1 lines at “C”
and “D” as indicated in Figure 52.
Convergence Alignment Template
The Convergence Alignment Template is a grid
approximately the size of the viewing screen used to
ensure the proper size and shape of the alignment
rasters. It is 6 blocks across by 6 blocks high. The grid
dimensions vary with the mode of operation.
Apply a Convergence Alignment Template to the
viewing screen of the PTV. Make sure the center lines
are properly aligned. If a template is not available, one
can be created by following the instructions below.
Create a Convergence Alignment Template by
drawing a pattern, as in Figure 53, in the actual
dimensions on transparent film or tracing paper. Start
with the Horizontal and Vertical Center Axis and work
outwards until the pattern is complete. Pay attention to
the actual dimensions of the pattern.
Grid Dimensions:
51” Models: 85.5mm Horizontal X 93mm Vertical.
Note: A convergence alignment template, part
number
TXFQD01ESER, is available through
Matsushita/Panasonic Services.
Figure 51. LINE adjustment
left/right
up/down
2.0
4.0
3.5
Figure 52. H & V size check
1
1
1
2
2
3
2
3
3
3
2
1
Center
Center
Figure 53. Convergence adjustment grid
