Read Sony CFD-W57L Service Manual online
– 49 –
• IC Block Diagrams
IC1 TA2008AN
IC2 BU2615S
IC301 BA3426AS
AM
OSC
AM
RF
BUFF
FM
OSC
FM
MIX
AM
MIX
AM
DET
FM
DET
ST
DET
AGC
FM RF IN
GND1
MIX OUT
AGC
VCC2
FM IF IN
AM IF IN
GND2
QUAD
ST IND
L OUT
R OUT
AM RF IN
FM RF OUT
AM OSC
FM OSC
VCC1
OSC OUT
IF OUT
DET OUT
MPX IN
LPF1/BAND
LPF2/MO-ST
VCO
AM/FM
ST/MONO
SW
LEVEL
DET
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
BUFF
IF
BUFF
BUFF
AF
BUFF
BUFF
FM
IF
IF
AM
IF
IF
FM
RF
MUTE
FM
MPX
1/8 DIV
REFERENCE
DIVIDER
PHASE
DET
PRESCALER
22
2
1
4
5
6
7
8
9
10
11
SHIFT REGISTER LATCH
I/O
CTL
IF
COUNT
CTL
20 BIT
COUNT
MAIN
COUNT
UNLOCK
XOUT
VSS
PD1
VDD1
VDD2
FMIN
AMIN
P2
IFIN
P6
PD2/P5
XIN
CE
3
NC
CK
DA
CD
P0
P1
P3
P4
BUFFER
21
NC
20
19
18
17
16
15
14
13
12
AGC
VCC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
28
27
26
25
24
23
22
21
20
19
18
17
REC EQ
REC EQ
LOGIC
B-L
B-R
TR-B
TR-C
TAPE-MODE
FNC
REC-EQ-L
REC-EQ-R
REC-NF-L
REC-NF-R
LPF-L
LPF-R
AGC
BIAS
GND
VCC
A-L
TAPE-NF-L
TAPE-O-L
A-R
TAPE-NF-R
TAPE-O-R
MIC/HS
MIC-NF
MIC-IN
RADIO-IN-L
RADIO-IN-R
CD-IN-L
CD-IN-R
LINE-OUT-L
LINE-OUT-R
BIAS-IN
29
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