(Vf-26 Board); Focus Adjustment (Vf-26 Board); Brightness, Contrast Adjustments (Vf-26 Board) - Sony Video8 CCD-F501 Service Manual

8-5-5, Vertical Amplitude Adjustment (VF-26 Board)
Mode Playback
Alignment tape for checking operation
Signal (WRS-SNSP)
Monoscope portion
'Adjustment Element | Volume array ® (V SIZE) S|
Specified Value 643%
Adjustment method:
1) By tuming volume array ® (V. SIZE), adjust vertical
overscan to 6 + 3% (upper and lower total). (See Fig. 8-50.)
16.5%
ay
iA —
Sersd-
3%
4 +
100%
16.5%
Fig. 8-55.
8-5-6. Focus Adjustment (VF-26 Board)
Mode Playback
Alignment tape for checking operation
Signal (WRS-5NSP)
Monoscope portion
Adjustment Element | RV901
Adjustment method:
1) Adjust to the best focus point with RV901.
8-5-7. Brightness, Contrast Adjustments
(VF-26 Board)
Mode Playback
Alignment tape for checking operation
Signal (WRS-SNSP)
Monoscope portion
Brightness: Volume array ©
'Adjustment Element (BRIGHT)
Contrast: Volume array © (CONT)
Adjustment method:
1) Adjust volume array © (BRIGHT) and © (CONT)
_ alternately until the bright and dark areas of a gray scale are
displayed correctly. (The bright areas should not be made
too bright to avoid a fuzzy display of the cross-hatches in
the monoscope circle, and the brightness of the dark areas
should be such that discrimination between the darkest and
second darkest area is possible.) (See Fig. 8-50.)
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