Sony MDR-RF830 Service Manual page 16

Connection points :
Digital voltmeter
(AC range)
[ RX BOARD ] (Conductor side)
Oscilloscope
Digital voltmeter
(DC range)
Oscilloscope
Adjustment Location :
[RX BOARD] (Component side)
RV302
Tuning Knob
RV301
VOL Knob
t
RV303 : Separation Adjustmen
L301 : Receive Frequency Adjustment
— 5 —
• IC BLOCK DIAGRAMS
IC301 CXA1611N-T4
24 23 22 21
FM•IF
DISCRI
AM•IF
DET•AGC
1 2 3 4
IC302 LA4533M
POWER MUTE
1 10 MT/SW
P/SW
SWITCH CIRCIUT
2 AMP1 9
IN1
BIAS
PRE GND 3 8
AMP2
IN2 4 7
REF 5 6
SECTION 3
DIAGRAMS
20 19 18 17 16 15 14 13
TUNING RIPPLE
REGULATOR
METER FILTER
DETUNE
AM•FE
DET
FM•FE
5 6 7 8 9 10 11 12
OUT1
POWER GND
OUT2
VCC
— 6 —
MDR-RF830