7
7
MDR-RF415R
4-1. BLOCK DIAGRAM
SECTION 4
DIAGRAMS
•
IC BLOCK DIAGRAM
IC302
LA4533M
POWER
SWITCH
MUTE
CIRCIUT
BIAS
1
2
3
4
5
6
7
8
9
10 MT/SW
OUT1
POWER GND
OUT2
VCC
P/SW
IN1
PRE GND
IN2
REF
AMP2
AMP1
L301
RECEIVE
FREQ.
RV303
TUNE
D301
+V
+V
FRONT END
FE UNIT
18
13
16
FM IF/
DISCRI
DECODE
AMP
STEREO
IND
CF301
10.7MHz
26
CF302
10.7MHz
6
2
9
5
R-CH
R-CH
RV302
VOL
w
SPEAKER
L-CH
SPEAKER
R-CH
AUDIO AMP
IC302
22
20
FM FE
L302
+V
27
AUTO
BLEND
MUTE
MONO/ST
SW
1/2
COUNTER
PD1
PD1
VCO
21
REG
RV301
FREE RUN
FREQ.
IF AMP/DECODE
IC301
D304
S1
ON/OFF SW
+
-
B+
Ni-Cd
1.2 x 2
power
R-ch is omitted.
• Signal path.
F
: FM
