Sony DSR-20MD, Service Manual

Page: 167 / 225

5-75
2. Analog E-E VIDEO Signal Output Level Adjustment
(VA-102 Board)
Mode E-E
Signal Color bar (S VIDEO input) (Note 1)
Measurement Point Pin
9
of IC401 (CL434)
Measuring Instrument Oscilloscope
Adjustment Element RV401, RV404
A = 0.714 ± 0.01 V (NTSC)
Specified Value
A = 0.700 ± 0.01 V (PAL)
B = 280 ± 10 mV (NTSC)
B = 300 ± 10 mV (PAL)
3-5-3. VA-102 Board Adjustments
1. AGC Adjustment (VA-102 Board)
Mode E-E
Signal Color bar (VIDEO input) (Note 1)
Measurement Point Pin
qf
of IC205 (CL220)
Measuring Instrument Oscilloscope
Adjustment Element RV202
Specified Value
A = 1.428 ± 0.02 V (NTSC)
A = 1.400 ± 0.02 V (PAL)
Note 1:
Set “VIDEO” mode with the INPUT SELECT button on
the front panel.
Adjusting method:
1) Set the Y signal level (A) to the specified value using RV202.
For NTSC model
For PAL model
Fig. 5-3-13.
Note 1:
Set “S VIDEO” mode with the INPUT SELECT button
on the front panel.
Note 2: Terminate the video output terminal using a 75
Ω
resis-
tor.
75
Ω
resistor (Parts code: 1-247-804-11)
Adjusting method:
1) Set the Y signal level (A) to the specified value using RV401.
2) Set the burst signal level (B) to the specified value using RV404.
For NTSC model
For PAL model
Fig. 5-3-14.
White (100%)
A
H
White (100%)
A
H
B
H
A
White (100%)
A
H
B
White (100%)