Sony KZ-32TS1U, Service Manual

Page: 18 / 108

KZ-32TS1U(U/C) 2-3
2-2-4. Video input adjustment
1. Input All white 90 IRE signal of NTSC to the video input terminal.
2. Select Video Calibration from the AD Converter menu.
3. Adjust the Sub Contrast (Video) and then, adjust the detection values of
G to the set value.
Detection set value: 230 ± 3
4. Set the video input signal to All gray 20 IRE signal of NTSC.
5. Adjust the Sub Bright (Video) and then, adjust the detection values of G
to the set value.
Detection set value: 51 ± 3
6. Adjust the CB Offset (Video) and then, adjust so that the detection value
of B is the same as G value.
7. Adjust the CR Offset (Video) and then, adjust so that the detection value
of R is the same as G value.
8. Repeat step 5 to 7 until the detection set value in step 5 above is obtained.
9. Repeat step 3 to 8 until the detection set value in step 3 and 5 above are
obtained.
2-2-5. Video coder input adjustment
1. Input All white 30 IRE signal of SECAM to the video input terminal.
2. Select By Adj from the Chroma decoder menu.
3. Adjust the By Adj (SECAM) and then, adjust so that the detection value
of B is the same as G value.
4. Select Ry Adj from the Chroma decoder menu.
5. Adjust the Ry Adj (SECAM) and then, adjust so that the detection value
of R is the same as G value.
6. Repeat step 3 to 5 until the detection values of R, G, and B reach the
allowable error range.
Allowable error ± 5
7. Set [Cal Mode] to [OFF] after the A/D calibration adjustment is
completed.