Panasonic PT- 56WX51CE, Service Manual

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Service Manual
Trapezoid Adjustment (EWTRA)
1. Set default value
Pincushion Adjustment (PCC)
Procedure:
1.
Cover Red and Blue Lenses.
2. Confirm PTV is set to the Factory Adjustment
Mode.
3. Set DAC MUTE from 0 to 1 (disabling digital
convergence).
4. Apply a NTSC crosshatch pattern with dot.
5. If the distance at “A” is not 10 ± 5mm, enter “H
DEF” “H WID” mode and adjust using Volume Up/
Down until it is 10 ± 5mm. See Fig. 24.
Figure 23. Pincushion Adjustment
6. If not all corners of cross hatch appear in screen,
enter “V DEF” “V SIZE” mode and adjust until they
appear.
7. Confirm that measurement of “A” has not changed.
8. Enable digital convergence by changing DAC
MUTE from 1 to 0 and remove caps from lenses.
9. If Trapezoid adjustment is required after this
adjustment, perform trapezoid adjustment.
Side Bars Adjustment (SBPOS)
1. Set PTV to 4:3 aspect.
2. Adjust SBPOS to obtain the same size on both
borders (to certer the image).
Convergence Alignment Template
Note: A convergence alignment template, part
number TXFQD01ESER for 47”, is available
through Matsushita/Panasonic Services
Grid Dimensions:
47” Models: 1036mm Horizontal X 584mm Vertical.
Line with dot
A = 10 ± 5mm
A
NOT GOOD GOOD NOT GOOD