Sony CCD-F35 Service Manual page 168

7-3-3, Focus Adjustment
7-3-6. Horizontal Amplitude Adjustment (VF-14 Board)
Mode Playback Mode Playback
Alignment tape for checking operation Alignment tape for checking operation
Signal (WRS-SNSP) Signal (WRS-SNSP)
Monoscope portion Monoscope portion
Adjustment method:
Adjustment Element | C911
1) Adjust for optimum focus using the focus ring. Specified Value 643%
(See Fig. 7-39.)
7-3-4. Aberration Adjustment
eg eer
Dot pattem
See Fig. 7-41.
Signal
Specified Value
Adjustment method:
1) Use the aberration adjustment rings to adjust any trailing
dots to within 2 times the dot diameter and any fan shaped
aberrations to within the dot diameter.
2) If off center, repeat the Centering Adjustment.
x x
Within X
Within 2X
Fig. 7-41.
7-3-5. Horizontal Oscillatlon Frequency Adjustment
(VF-14 Board)
Playback
Alignment tape for checking operation
(WRS-SNSP)
Positive terminal of C904 Measurement Point
x, igital ter i
Measuring Instrument | Digital voltmeter or oscilloscope
(DC range)
Adjustment Element | RV901
| Specified Value 2.60 + 0.05 Vde _ |
Adjustment method:
1) Adjust to 2.60 + 0.05 Vdc using RV901.
Adjustment method:
1) Line up the upper and lower sections of the monoscope
image with the upper and lower edges of the screen by
rotating RV902,
2) Rotate RV904 to set the brightness to the normal level.
3) Short or open the pattern (A) of the H size adjustment
capacitor (C911) to provide horizontal overscans of 6 + 3%
(total of left and right).
(See Fig. 7-48.)
\~«——— 100%
3% | be
YA
Flyback transformer
Fig. 7-43.
~— 224 —