Sony DSR-20MD, Service Manual, Page: 165 / 225

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8. Playback CB Signal Level Adjustment
(JC-19 Board)
Mode Recording
Signal DV input (Note 1)
Measurement Point
Pin
qs
of CN104 or pin
ql
of CN102 on
VA-102 board
Measuring Instrument Oscilloscope
Adjustment Page D
Adjustment Address 35
Specified Value A = 390 ± 10 mV
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, select page: 5, address: 02, and set data:
09. After adjustment, be sure to return the data to “00”)
Adjusting method:
1) Select page: 0, address: 01, and set data: 00.
2) Select page: D, address: 35, change data, and adjust the CB
signal level (A) to the specified value.
3) Select page: 0, address: 01, and set data: 00.
9. IC422 27MHz XTAL fo Adjustment (JC-19 Board)
Mode Playback
Signal Arbitrary tape
Measurement Point Pin wk of IC442 (CL479)
Measuring Instrument Frequency counter
Adjustment Page D
Adjustment Address 33
Specified Value f = 13500000 ± 100 Hz
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 33, change data, and adjust the clock
frequency (f) to the specified value.
3) Press the PAUSE button on the adjusting remote commander.
4) Select page: 0, address: 01, and set data: 00.
10. AFC Preliminary Adjustment (JC-19 Board)
Mode Recording
Signal Color bar
Measurement Point Pin 9 of IC205 (CL214)
Measuring Instrument Digital voltmeter
Adjusting Element CT201
Specified Value A = 1.9 ± 0.5 Vdc
Adjusting method:
1) Set the DC voltage (A) to the specified value using CT201.
For NTSC model
H
A
For PAL model
H
A
Fig. 5-3-11.