Sony CCD TRV16 Service Manual - Page 109

1-5-6. Vertical Amplitude Adjustment (VF-99 board) Mode Signal Adjusting Element Specified Value Playback Alighment tape : For checking operations (WR5-5NSP) Monoscope section RV903 10 ± 3% Adjusting method: 1) Adjust RV903 so that the vertical direction over scan becomes 10 ± 3% (Top and bottom totals). Fig. 5-1-21. 1-5-7. Brightness Adjustments (VF-99 board) Mode Signal Specified Value Playback Alighment tape : For checking operations (WR5-5NSP) Monoscope section RV904 Adjusting method: 1) Rotate RV904, and adjust so that the bright/dark sections of the gray scale are displayed correctly. (The bright section should be unsatisfactory till the cross hatch appears vague in the monoscope circle. The dark section should be unsatisfactory till the darkest section and the second darkest section of the gray scale cannot be differentiated.) 1-5-8. Horizontal Amplitude, Vertical Amplitude, Focus Check "1-4-5. Horizontal Amplitude Adjustment" and "1-4-6. Vertical Amplitude Adjustment" should both satisfy the specified values. If not, perform the adjustments from the beginning again. In this case, perform "1-4-7. Brightness, Contrast Adjustments" again. Moreover, check the focus, and if it found to be vague, perform "14-3. Focus Adjustment" and "1-4-4. Aberration Adjustment". VF-99 BOARD (SIDE A) SOL901 C909 RV903 RV904