Panasonic PT-56WX53G, Service Manual

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4. Adjust “B-Y_G” so blue look natural, and the rest of the colors
become in balance.
5. Adjust “R-Y_A” so red look natural, and rest of the colors become in
balance.
6. Check that white bar is real white, no bluish or reddish or tending to
become grey.
17.20. 1080i Color adjustment (TINT, B-Y_G, R-Y_A)
NOTE:
1080i, 480p, 480i pattern can be obtained from Panasonic’s TU-DST51 set-top box DTV decoder.
1. Set same settings as NTSC adjustment
2. Apply a 1080i signal, and repeat adjustments as from step 2 in NTSC
adjustment.
3. If pattern is not available, use a color signal in 1080i and adapt the
adjustment to that available signal.
17.21. Tint and color check
Set picture mode to VIVID mode. Again, the service ability to see color and the balance of color is
important for theses adjustments.
Tint check
1. In picture menu set PICTURE NORM to YES.
2. Apply color bars to the video input.
3. Magenta is composed of two colors, blue and red.
4. Check to see that magenta does not have too much blue or too much
red.
5. Check cyan. Cyan is composed of blue and green. It should not have
too much blue or green.
6. Use a test signal from a VCR or laser disk that has a pre-recorded
close up of a signal that has good flesh tones.
7. The signal on the VCR or laser disk should look normal.
Color Check
Using a clean RF or video signal, set the color level so that it does not saturate or appear harsh. Make
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