Panasonic PT53WX54J - 53" PROJECTION TV HD, Service Manual

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NOTE:
1080i, 480p, 480i pattern can be obtained from Panasonic’s TU-DST51 set-top box DTV decoder.
1. Apply a NTSC pattern that lets adjust the image to correct vertical
linearity (see above note).
2. Repeat NTSC vertical linearity adjustment from step 2
17.6. NTSC Vertical size adjustment (V-AMP)
This adjustment is intended to correct the vertical size of the picture for NTSC mode
NOTE:
1080i, 480p, 480i pattern can be obtained from Panasonic’s TU-DST51 set-top box DTV decoder.
1. Apply a NTSC pattern that lets adjust the image to correct vertical size
(see above note).
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. Adjust centering magnets so that the center of the pattern get aligned
with screen frame center.
5. Adjust VDEF “V-AMP” DAC until vertical size is proportional on top
and bottom.
6. Set DAC MUTE from 01 to 00 (disabling digital convergence).
7. Set VIDEO “C_OFF” DAC from 01 to 00
17.7. HD 1080i Vertical size adjustment (V AMP)
This adjustment is intended to correct the vertical size of the picture for HD 1080i mode.
NOTE:
1080i, 480p, 480i pattern can be obtained from Panasonic’s TU-DST51 set top box DTV decoder.
1. Apply a HD 1080i pattern that lets adjust the image to correct vertical
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