Horizontal And Vertical Size Check; Convergence Alignment Template - Panasonic PT-47WX52F Service Manual

Horizontal and vertical size check

1. Apply a pattern that permits to check that
horizontal and vertical proportion of the image is
correct.
Figure 58. H & V size check
2. Confirm that horizontal and vertical center of the
picture is located in the center of the screen.
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 59, 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:
47" Models: 1036mm horizontal X 584mm vertical.
Note: A convergence alignment template, part
number TXFQD01ESER1 for 47", is available
through Matsushita/Panasonic Services.
3 2 1
3
2
1
Center
1
2
3
Figure 59. Convergence adjustment grid
Panasonic
FORMAT

Convergence alignment template

Center
2
1
3
Note: 1080i,
pattern obtained from
Panasonic's TU-DST51
set-top
decoder.
3. Check that the image is proportional horizontally
and vertically, proportion is different on every
aspect.
- 33 -
480p, 480i
box DTV
Service Manual