Sony CCD-TRV32 - Mhz DEVIATION ADJUSTMENT; (Mono Model); BPF Fo ADJUSTMENT

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4-4. 1.5MHz DEVIATION ADJUSTMENT
(MONO MODEL)
Purpose : 1.5MHz deviation adjustment. Error in this
adjustment value means loss of tape inter
change ability.
Mode Playback
Signal Alignment tape : For checking
operations
WR5-5CSP : PAL
WR5-5NSP : NTSC
Measurement AUDIO output terminal.
Measuring Instrument Oscilloscope, level meter
Adjustment Page F
Adjustment Address 2C
Specified Value –7.5 ± 0.5dBs
Adjustment method:
4-5. BPF fo ADJUSTMENT
Purpose : Optimizes fo of BPF inside IC.
Adjustment error : Incorrect discrimination of monaural/stereo and
increase of noise at high output of audio
volume are resulted.
Mode Playback
Signal Alignment tape
〈MONO model〉
WR5-5CSP : PAL
WR5-5NSP : NTSC
〈STEREO model〉
WR5-9CS : PAL
WR5-9NS : NTSC
Measurement Point AUDIO output terminal (Left/Right)
Measuring Instrument Audio level meter
Adjustment Page F
Adjustment Address 2E
Specification Value Distortion : 1% or less.
Adjustment procedure:
Order Page Address Data Procedure
1 6 00 01 After setting the data, press the PAUSE button. (Preparation)
2 F 2C Change the data with the PLAY and STOP buttons, and adjust the 400Hz signal level to
specified value.
3 Press the PAUSE button.
4 6 00 00 After setting the data, press the PAUSE button. (End)
Order Page Address Data Procedure
1 6 00 01 After setting the data, press the PAUSE button. (Preparation)
2 Playback the 400Hz segment of the alignment tape.
3 F 2E Change data using PLAY and STOP buttons so that distortion factor is minimized.
4 Press the PAUSE button.
5 6 00 00 After setting the data, press the PAUSE button. (End)