Panasonic PT-47X54J Service Manual page 220

5mm.
5. If not all corners of cross hatch appear in screen, enter V DEF "V-
AMP" DAC and adjust until they appear.
6. Confirm that measurement of "A" has not changed.
7. Enable digital convergence by changing DAC MUTE from 01 to 00.
8. Set VIDEO "C_OFF" DAC from 01 to 00.
17.4. Trapezoid adjustment (TRAP)
NOTE:
1080i, 480p, 480i pattern can be obtained from Panasonic's TU-DST51 set-top box DTV decoder.
Procedure:
1. Apply a 1080i HD crosshatch pattern.
2. Set VIDEO "C_OFF" DAC from 00 to 01 and project only green.
3. Set DAC MUTE from 00 to 01 (disabling digital convergence).
4. Enter service mode, select "TRAP" and adjust DATA with
VOLUME keys in remote so that lines at right and left are vertical
like a solid line.
Pincushion
50