37
AVR-5803/AVC-A1SR
LC72131M
(IC307/AVR-5803 only)
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
XI N
CE
DI
CL
DO
BO1
BO2
BO3
BO4
I O1
AOUT
AI N
PD
V
DD
F MI N
AMI N
I O2
I F I N
V ss
XOUT
LA1265 (S)
(IC303/AVR-5803 only)
22
1
11
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
FM IF
Level
Det.
Level
Det.
RF Amp
Mix.
AM IF
Det.
LED
Driver
Osc.
Buffer
Reg.
AGC
S meter
SD Adj
GND
Q Det
S Curve
Vcc
P o s t
Amp
LA3401
(IC302/AVR-5803 only)
1
V OL
REG
OSC
SYMMETRI CAL
REOCTANCE
CI RCUI T
PHASE
COMPARATOR
V CO STOP
PI L OT DET
F F
F F
F F
38kHz
F F
38kHz 90°
F F
19kHz 90°
MUTI NG
F M AM CHANGE
Ro
Rc
Rc
Rb
DECODER
MUTI NG CONTROL
F M AM CHANGE OV ER
V cc ON
MUTI NG
MUTI NG
OUTPUT
STEREO
SWI TCH
TRI GGER
L AMP
DRI V ER
Rb
2
3
4
5
6
7
8
9
10
11
22
21
20
19
18
17
16
15
14
13
12
m
PD4721GS-GJG (IC501)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
5.5 k
W
5.5 k
W
300
W
300
W
C4+
GND
C4
-
Vss
STBY
V
DD
C1+
Vcc
C1
-
C5+
C5
-
D
IN
1
D
IN
2
R
OUT
1
R
OUT
2
V
CHA
D
OUT
1
D
OUT
2
R
IN
1
R
IN
2
17
16
15
TA8772AN (IC615)
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
×
×
2
1
1 or
Pulse
Elimination
Pulse
Elimination
×
×
2
1
1 or
Pulse
Insertion
Pulse
Insertion
AGC
Detector
AGC
Detector
Detector
Clamp Clamp
Clamp Clamp
AGC
AGC
LPF
LPF
Pulse
HG. GP
225f H
VCO
1/225
Clock
Average
Bias
CCD 1H
CCD 1H
Bipolar Circuit
CCD Circuit
S / H
S / H
REF
REF
+
+
