Sony SLV-595HF Service Manual page 113

1-1. Stereo filter adjustment
Signal 22.9 kHz, 700 mVp-p
Measurement Point | Pin @ of 1C002
Messuremeat Oscilloscope
Equipment
Adjustment Element | RVO71
Adjusting Method
1) Connect the oscilloscope to Pin @ of [C002
2) Adjust audio generator output level so that signal level of
22.9 kHz becomes 700 mVp-p.
3) Connect the oscilloscope to Pin @ of ICO02
4) Make signal level of 22.9 kHz minimum using RVO71.
1-2. VCO adjustment
Signal 15.734 kHz, 140 mVp-p
Measurement Point Pin @ of 1C002
Measurement '
aie Oscilloscope (DC range)
| Adjustment Element | RVO72
The volt difference should be 0 +
Specified Value 0.1 Ve against when no signal input.
Adjustment Method:
1) Connect the oscilloscope to Pin @ of 1C002.
2) Adjust audio generator output level so that signal level of
15.734 kHz becomes 140 mVp-p.
3) Connect the oscilloscope to Pin@ of 1C002. (The
oscilloscope is DC range.)
4) Tum the audio generator OFF and measure DC level. (DC
level in no signal is approximately 4.5 Vdc.)
5) Tum the audio generator ON.
6) Make DC level equal to that in no signal using RVO72.
7) Make sure that Pin © of CNOO! (STEREO) is "L" level
2. Separation adjustment (TU-132 board)
Make adjustment by connecting the audio multiple signal
generator to VHF/UHF input terminal.
2-1. MPX input level rough adjustment
Signal Monaural RF signal
(400 Hz, 100% MOD)
Measurement Point | Pin @ of ICO02
Measurement :
Adjustment Element | RVOOl
245 + 25 mVp-p (-10 + 1 dBs)
Specified Value
Adjustment Method:
1) Set for 245 + 25 mVp-p using RVOO1.
2-2. Separation rough adjustment
Signal Stereo RF signal
(L: 400 Hz, R: 2 kHz 30% MOD)
Measurement Point R: Pin @ of CNO02
L: Pin © of CNO02
Measurement Oscilloscope
Adjustment Element R: RVO73.
L: RVO70
Specified Value Cross talk component is minimum.
Adjustment Method:
1) Connect the oscilloscope to Pin @ of CNO02
3) Connect the oscilloscope to Pin © of CNOO2
Make cross talk component (2kHz), mixed to 400 Hz
signal, minimum using RVO70.
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