Sony MDR-RF845R, Руководство по обслуживанию

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Adjustment Location :
[RX-BASE BOARD]
(Conductor side)
+
–
Digital voltmeter
(AC range)
L+ / R+
L– / R–
+
– +
–
L+ IC301 pin4
OSCILLOSCPE
L–
CH1 CH2
17. Check the difference of the L and R to more than 20 dB.
Ver 1.2 2001. 11
IC301
7
IC301
4
IC301
6
GND
Short
L–
L+
R–
R+
GND
TP(R312-C320)
(Connect a 33k
Ω
resistor)
RV301:
Free Run Frequency
Adjustment
+B
power line
(DC 2.4V)
RV302:
Volume control
L301:
Receive Frequency
Adjustment
S301:
TUNE switch