Sony DSR-20MD, Service Manual

Page: 174 / 225

5-82
3-5-4. General Adjustments
1. Y Output Level Adjustment (JC-19 Board)
Mode E-E
Signal Color bar (DV input) (Note 1)
Measurement Point Video output terminal
Measuring Instrument Oscilloscope
Adjustment Element page: D, address: 36
Specified Value
A = 0.83 ± 0.01 V (NTSC)
A = 0.823 ± 0.01 V (PAL)
Note 1:
Generate color bar signal with NTSC: DCR-VX1000/
PAL: DCR-VX1000E and enter it to the DV terminal.
(How to generate color bars: Connect the adjusting re-
mote commander to the NTSC: DCR-VX1000/PAL:
DCR-VX1000E, and set data: 09 to page: 5, address: 02.
After adjustment, be sure to return the data to “00”.
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 36, change the data, adjust the Y sig-
nal level (A) to the specified value.
1) Select page: 0, address: 01, and set data: 00.
2. Encoder R-Y Input Level Adjustment (JC-19 Board)
Mode E-E
Signal Color bar (DV input) (Note 1)
Measurement Point Video output terminal
Measuring Instrument Vectorscope
Adjustment Element page: D, address: 34
Specified Value
Phase : 104 ± 2º
Gain : 95 ± 5%
Note 1:
Generate color bar signal with NTSC: DCR-VX1000/
PAL: DCR-VX1000E and enter it to the DV terminal.
(How to generate color bars: Connect the adjusting re-
mote commander to the NTSC: DCR-VX1000/PAL:
DCR-VX1000E, and set data: 09 to page: 5, address:02.
After adjustment, be sure to return the data to “00”.
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Adjust the burst luminance point to the specified position us-
ing the PHASE and GAIN knobs of the vectorscope.
3) Select page: D, address: 34, change the data, adjust a red lu-
minance point to the specified position.
4) Select page: 0, address: 01, and set data: 00.
Fig. 5-3-28. Fig. 5-3-29.
A
H
Fig. 5-3-27.
For NTSC model For PAL model
R–Y
B–Y
Burst
R
: FOR ENCODER R-Y INPUT LEVEL ADJUSTMENT
B–Y
R
R–Y
Burst
: FOR ENCODER R-Y INPUT LEVEL ADJUSTMENT