Diagrams; Ic Block Diagrams - Sony WM-FS220 Service Manual

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6-1. IC BLOCK DIAGRAMS

IC1 TA2111F-(EL)
AM RF IN FM RF OUT RF VCC
24 23 22
AM
MIX
FM
RF
1 2 3
FM RF IN RF GND AM
LOW CUT
IC301 LB8115W-NA-TLM
TE
L 13942296513
48 47 46 45 44 43
COM 1
OSC
REF
VOLTAGE
CURRENT
RI 2
DET
S/S BIAS
3
PRE GND
4
5
PRE OUT1
6
PRE NF1
7
PRE OUT2
8
PRE NF2
PRE FWD IN1 9
10
PRE REV IN1
11
PRE FWD IN2
12
PRE REV IN2
REF
www
R.F
.
13 14 15 16 17
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SECTION 6

DIAGRAMS

DET OUT
FM OSC AM OSC AFC
21 20 19
AM
FM
OSC
OSC
BUFF
FM
MIX
AGC
4 5 6
MIX OUT AGC VCC
IF IN
42 41 40 39
PRE DRIVER
FWD/
REV
OPERATION LOGIC
OPERATION
PLUSE DET
DET
REF VOLTAGE
FOR SPEED CONTROL
DET
SYS
–
CONT
+
x ao
VREF
y
i
18 19 20 21 22 23 24
— 10 —
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8
MPX IN
LPF2 LPF1
18 17 16 15
AF
VCO
AF
DIVIDE
FM
MUTE
AM FM LEVEL
DET
DET DET
AM FM TUN
IF IF LED
7 8 9 10
AM FM GND TUN LED
IF IN
Q Q
3 6 7 1 3
38 37
FREQ
CARC.
36 VSP
SPEED
+
35
IN
34
MVREF
33
M-GND
LOW
32
LOW BOOST SW
BOOST
31
DET OUT
30
LOW BOOST IN1
29
LOW BOOST IN2
28
R.P1
27
R. P2
26
LP.2
25
MIX OUT2
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.
2 9 9 4 2 8
L-OUT R-OUT
14 13
DECODE
ST/MO
FM/AM
ST
LED
11 12
ST LED QUAD
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9