Sony CCD-TRV65E, CCD-TRV3E, CCD-TRV15E, CCD-TRV23E, CCD-TRV35E, Service Manual

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5-60E
3-8. ARRANGEMENT DIAGRAM FOR ADJUSTMENT PARTS
VC-195 BOARD (SIDE A)
CN909
CN501
IC202
CN551
IC604
CN911
C085
IC001
IC301
10 1 23 1
1
15
2
16
1 44
132 89
45
88
176
133
1
25
75
51
26 50
100 76
50 1
33 48
16 1
49
64
32
17
1 16
48 33
17
32
64
49
VC-195 BOARD (SIDE B)
IC501
CN910
IC751
1
16
1
12
36
25
13 24
48 37
1 12
36 25
13
24
48
37
1. 1.5 MHz Deviation Adjustment (VC-195 board)
Adjust to the optimum audio FM signal distortion.
If the adjustment is not correct, its playback level will differ from
that of other units.
Mode Playback
Signal Alignment tape:
For checking the operation
(WR5-5CSP)
Measurement Point Audio output terminal
Measuring Instrument Audio level meter
Adjustment Page F
Adjustment Address 45
Specified Value –7.5
±
0.5dBs
Adjusting method :
1) Select page: 0, address: 01, and set data: 01.
2) Select page: F, address: 45, change the data and set the 400Hz
signal level to the specified value.
3) Press the PAUSE button of the adjusting remote commander.
4) Select page: 0, address: 01, and set data: 00.
2. BPF Adjustment (VC-195 board)
Adjust to the optimum audio BPF characteristics of the IC.
If the adjustment is not correct, the distortion rate and S/N ratio will
worsen.
Mode Playback
Signal Alignment tape:
For BPF adjustment
(WR5-11CS)
Measurement Point Audio output terminal
Measuring Instrument distortion meter
Adjustment Page F
Adjustment Address 47
Specified Value The distortion rate should be and
minimum.
Adjusting method :
1) Select page: 0, address: 01, and set data: 01.
2) Select page: F, address: 47, change the data and minimize the
distortion rate.
3) Press the PAUSE button of the adjusting remote commander.
4) Select page: 0, address: 01, and set data: 00.
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