Sony SLV-595HF Service Manual page 109

1. VCO fo adjustment (HF-24 board)
The measurement point of the right channel is indicated
in[ J.
Mode Recording
Signal No signal
peste Frequency counter
Equipment
1.3 MHz adjustment
Paro Pin @ of 1C201
Adjustment Element _| RV202
Specified Value 1.299 + 0.001 MHz
1.7 MHz adjustment
Measurement Point Pin @ of 1C201
RV205
Adjustment Element
Specified Value 1.700 +0.001 MHz
Note: Connect the frequency counter through a buffer amplifier
(oscilloscope, etc.) of high input impedance (1 MQ or
more) and low capacity (10 pF or less).
Adjustment Method:
1) Connect the frequency counter to Pin @ [ ®@] of 1C201.
2) Adjust for 1.299-+ 0.001 MHz [1.700+0.001 MHz] using
RV202 [RV205].
2. Band-pass filter fo adjustment (HF-24 board)
| Mode
| Signal
Playback
Tape recorded in SP mode
CHI: Pin @ of IC201
CH2: Pin @ of IC201
Measurement Point
icesurerient Oscilloscope
Equipment
Adjustment Element | RV204
Specified Value A=B =
Connection:
1) Remove CN006 on the MA-106 board and input 50 mVp-p,
1.72MHz sine-wave from the signal generator to Pin@)
of CNO10.
Wier ae
1.72MHz
Signal generator
Fig. 7-11.
Adjustment Method:
1) Adjust so that the signal level of Pin @ and @® of 1C201 are
equal using RV204 (Signal level is approximately
300 mVp-p).
A=B
Pin @ of 1C201 Re
ifs
Pin ® of 1C201 He
Be
Fig. 7-12.
=alis—