Read Sony CFM-20 (serv.man2) Service Manual online
16
CFM-20
• IC BLOCK DIAGRAMS
IC1 TA2132AF (EL)
IC101 MM1315BD
16
15
14
13
FM
OSC
FM RF
OUT
AM/FM
SW
AM RF
IN
12
11
10
9
QUAD
AFC
DET
OUT
AM
OSC
16
15
14
13
FM/AM
FM
OSC
AM
OSC
FM
OSC
FM RF
OUT
AM/FM
SW
AM RF
IN
12
11
10
9
AFC
DET
OUT
AM
OSC
AM
DET
FM
DET
FM
MIX
AM
MIX
AGC
1
2
3
4
AGC
RF
GND
MIX
OUT
FM RF
IN
5
6
7
8
GND
FM IF
IN
AM IF
IN
VCC
AM
RF
FM RF
AF
BUFF
FM
IF
AM
IF
TAPE/AUX
REC/PLAY
MIX/ECM
NC
REC
POWER ON/OFF
AUX-IN
LPF
ALC DEL
P.VCC
P.VCC
POWER GND
PBTL2
POP DEL
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
MIC-IN
POWER GND
POWER IN
LIN-OUT
RIPPLE
FILTER
RIPPLE
FILTER
SIG VCC
SIG-GND
BIAS
VBIAS
TAPE EQ
TAPE NF
HEAD-IN(
–
)
HEAD-IN(+)
MIC N.F
BTL1
21
22
23
24
25
26
27
28
29
30
2
3
5
4
6
7
8
9
10
1
17
18
19
20
11
12
13
14
15
16
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