Ic Block Diagrams - Sony WALKMAN WM-SR10 Service Manual

WM-SR10

6-6. IC Block Diagrams

IC1 TA2111FN (EL)
24 23 22 21 20 19 18
FM
IF
FM
MUTE
FM OSC
AM OSC AM DET FM DET
FM MIX
AM FM
AM MIX AGC
IF IF
FM
RF
1 2 3 4 5 6 7 8
IC301 LB8115W-NA-TLM
48 47 46 45 44 43 42 41 40 39
PRE DRIVER
FWD/
REV
COM 1
OPERATION LOGIC
OSC
REF
VOLTAGE
OPERATION
PULSE DET
DET
CURRENT
RI 2
DET
REF VOLTAGE
FOR SPEED CONTROL
S/S BIAS
3
PRE-GND
4
DET
PRE-OUT (L) 5
6
PRE-NF (L)
7
PRE-OUT (R)
8
PRE-NF (R)
FWDIN (L) 9
10
REVIN (L)
FWDIN (R) 11
12
REVIN (R)
REF
SYS
–
CONT
+
VREF
R.F
13 14 15 16 17 18 19 20 21 22
17 16 15 14 13
AF
DECODE
VCO
DIVIDE
LEVEL ST/MO
DET FM/AM
TUNE ST
LED LED
9 10 11 12
38 37
FREQ
CARC.
36
SPEED VSP
+
35 IN
34
M-VREF
33
M-GND
LOW
32
L. B-SW
BOOST
31 DET-OUT
30
MIX-IN (L)
29 MIX-IN (R)
28
H.PIN (L)
27
H.PIN (R)
26
LP.2
25
MIX-OUT (R)
23 24
IC151 LM4871MM
SHUTDOWN 1 BIAS
BYPASS 2
+IN 3
VDD/2
-IN 4
IC501 TA8155FN (ER)
1
VCC (REC)
2
REC OUT (L)
REC AMP
3
REC OUT (R)
PB IN (L) 4
5
PB IN (R)
6 VREF
VREF
PB NF (L) 7
PB AMP
8
PB OUT (L)
9 PB AMP
PB OUT (R)
10
PB NF (R)
11
REC SW REC / PB
12 PW SW
PW SW
16 16
8 VO2
AV=-1
7 GND
6 VDD
5 VO1
ALC
24
ALC
DET
23
VCC
22
MIC NF (L)
ALC
21 MIC IN (L)
20
GND
ALC 19
MIC IN (R)
18 MIC NF (R)
17
MIC OUT (R)
16
MIC OUT (L)
RADIO / TAPE
15
LINE SW
14
BUF IN (L)
13
BUF IN (R)