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Service Manual
NTSC ZOOM Vertical size adjustment
(VSIZE)
Note:
1080i, 480p, 480i pattern can be obtained from
Panasonic’s
TU-DST51
set-top
box
DTV
decoder.
1.
Apply a NTSC pattern (see avobe note) .
2.
Change aspect to ZOOM mode.
3.
Repeat vertical size adjustment from step 2
4.
Try making circle seem rounded (in proportion)
NTSC Horizontal phase adjustment
(H-POS)
Note:
1080i, 480p, 480i pattern can be obtained from
Panasonic’s
TU-DST51
set-top
box
DTV
decoder.
1.
Apply a NTSC crosshatch pattern with dots.
2.
Set CONV “MUTE” DAC from 00 to 01 (disabling
digital convergence).
3.
Set VIDEO “C_OFF” DAC from 00 to 01 to project
only green.
4.
Turn green deflection yoke until line is perfectly
horizontal.
5.
Adjust H-POS DAC data so that pattern is in the
center of screen.
6.
Enable digital convergence by changing DAC
MUTE from 01 to 00.
7.
Set VIDEO “C_OFF” DAC from 01 to 00.
HD 1080i Horizontal phase adjustment
(H-POS)
Note:
1080i, 480p, 480i pattern can be obtained from
Panasonic’s
TU-DST51
set-top
box
DTV
decoder.
1.
Apply a HD 1080i pattern.
2.
Repeat NTSC horizontal phase adjustment from
step 2.
Trapezoid adjustment (EWTRA)
1.
Set default value
NTSC Pincushion adjustment (PCC)
Note:
1080i, 480p, 480i pattern can be obtained from
Panasonic’s
TU-DST51
set-top
box
DTV
decoder.
Procedure:
1.
Apply a NTSC crosshatch pattern with dots.
2.
Set VIDEO “C_OFF” DAC from 00 to 01 to project
only green.
3.
Set DAC MUTE from 00 to 01 (disabling digital
convergence).
4.
If the distance at “A” is not 10 ± 5mm, enter “H
DEF” “H WID” mode and adjust by VOLUME UP/
DOWN until it is 10 ± 5mm. See figure 39.
Figure 39. Pincushion adjustment
5.
If not all corners of cross hatch appear in screen,
enter V DEF “V SIZE” mode and adjust until they
appear.
Panasonic
FORMAT
Figure 36. Vertical size adjustment
Figure 37. H phase adjustment
Figure 38. H Phase adjustment
Panasonic
FORMAT
Line with dot
A = 10 ± 5mm
A
NOT GOOD
GOOD
NOT GOOD