Sony CCD-TRV312 Operating Instructions (primary manual), Service Manual, Page: 197 / 212

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3-14. Y FM CARRIER FREQUENCY ADJUSTMENT
Purpose :
Adjusts the FM signal to be recorded on tape
to the 8 mm format. (Adjusts the carrier
frequency of normal mode Y FM signal.)
Adjustment error : (If frequency is low) Overall picture will be
blurred signal. (If frequency is high) Overall
picture will have black streaking noise.
S/N will be deteriorated.
Mode CAM-REC
Signal Any signal
Measurement Point IC201 pin
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Measuring Instrument Frequency counter, Oscilloscope
Adjustment Page F
Adjustment Address 30
Specification Value 4.20
±
0.01MHz
Adjustment procedure:
Order Page Address Data Procedure
1 6 00 01 After setting the data, press the PAUSE button. (Preparation)
2 6 01 43 After setting the data, press the PAUSE button.
3 F 30 Change data using PLAY and STOP buttons so that the carrier frequency satisfies the
specification. (Record mode)
4 Press the PAUSE button.
5 6 01 00 After setting the data, press the PAUSE button.
6 6 00 00 After setting the data, press the PAUSE button. (End)
4.20
±
0.01MHz
Approx 0.5 Vp-p