Panasonic PT-56WX53G, Service Manual, Page: 119 / 194

size (see above note).
2. Repeat NTSC vertical size adjustment from step 2
17.8. NTSC ZOOM Vertical size adjustment (V AMP)
This adjustment is intended to correct the vertical size of the picture for NTSC ZOOM 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. Change aspect to ZOOM mode.
3. Repeat NTSC vertical size adjustment from step 2
4. Try making circle seem rounded (in proportion)
17.9. NTSC Horizontal size adjustment / (H_POS)
This adjustment is intended to correct the horizontal position 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 horizontal
position (see above note)
2. Set VIDEO “C_OFF” DAC from 00 to 01 to project only green.
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