Afc Picture Frame Adjustment (Jc-19 Board); Afc Adjustment (Jc-19 Board) - Sony DSR-20MD Service Manual

11. AFC Picture Frame Adjustment (JC-19 Board)

Mode Recording
Signal Color bar (Video input) (Note 1)
CH1: Pin wa of IC017 (CL051)
Measurement Point
CH2: Pin wk of IC205 (CL222)
Measuring Instrument Oscilloscope
Adjusting Element RV201
Specified Value T = 110 ± 10 nsec
Note 1: Set "VIDEO" mode with the INPUT SELECT button on
the front panel.
Adjusting method:
1) Set the time difference (T) between the H SYNC falling and
AFH rising to the specified value using RV201.
CH1
CH2
Magnified
CH1
CH2
T
Fig. 5-3-12.

12. AFC 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 = 1.80 ± 0.05 Vdc
Adjusting method:
1) Set the DC voltage (A) to the specified value using CT201.
H
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