Vertical Amplitude Adjustment (Vf-104 Board); Brightness Adjustments (Vf-104 Board); Horizontal Amplitude, Vertical Amplitude, Focus Check - Sony Handycam Vision CCD-TRV300E Service Manual

1-4-6. Vertical Amplitude Adjustment (VF-104 board)

Mode Playback
Signal Alighment tape :
For checking operations
Monoscope section
Adjusting Element RV903
10 ± 3%
Specified Value
Adjusting method:
1) Adjust RV903 so that the vertical direction over scan becomes
10 ± 3% (Top and bottom totals).
Fig. 5-1-20.
VF-104 BOARD (SIDE A)
RV903
RV904
(WR5-8CSE)
SOL901

1-4-7. Brightness Adjustments (VF-104 board)

Mode
Signal
Specified Value
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.)
1-4-8. 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 "1-
4-3. Focus Adjustment" and "1-4-4. Aberration Adjustment".
5-25
Playback
Alighment tape :
For checking operations
(WR5-8CSE)
Monoscope section
RV904