Sony KE-32TS2U - 32" Flat Panel Color Tv, Руководство по обслуживанию

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KE-32TS2U(UC) 2-2
2-2. Calibration Adjustment of A/D Converter and
Video Coder
2-2-1. Preparation for adjustment
1. Set [RGB MODE] of the Custom Setup menu in the service mode to
[Other].
2. Set the [Cal Mode] of the AD Converter in the service mode to [ON].
3. Set the image quality mode to AV professional standard state.
2-2-2. RGB AD adjustment
1. Input All white 90 IRE signal of VGA (640x480/60Hz) to the RGB input
terminal.
2. Select RGB Calibration from the AD Converter menu, then adjust the R
gain and the B gain in the menu and balance so that the detection values
of R and B approximate to the detection value of G.
3. Adjust the Sub Contrast (RGB), that is, adjust the detection values of R,
G, and B to the set value.
Detection set value: 230 ± 3
4. Set the RGB input signal to All gray 20 IRE signal of VGA (640x480/
60Hz).
5. Adjust the RGB Bias, that is, adjust the detection values of R, G, and B
to the set value.
Detection set value: 51 ± 3
6. Repeat steps 1 to 5 described above until the detection set value is ob-
tained.
2-2-3. Component AD adjustment
1. Input All white 90 IRE signal of 1080/60i to the component input termi-
nal.
2. Adjust the Sub Contrast (YUV), that is, adjust the detection value of G to
the set value.
Detection set value: 230
±
3
3. Set the component input signal to All gray 20 IRE signal of 1080/60i .
4. Adjust the Sub Bright (YUV), that is, adjust the detection value of G to
the set value.
Detection set value: 51
±
3
5. Adjust the CB Offset (YUV), that is, adjust so that the detection value of
B is the same as that of G.
6. Adjust the CR Offset (YUV), that is, adjust so that the detection value of
R is the same as that of G.
7. Repeat steps 4 to 6 until the detection set value in step 4 is obtained.
8. Repeat steps 2 to 7 until the detection set value in steps 2 and 4 are
obtained.