Ic Block Diagrams - Sony WM-GX221 Service Manual

WM-GX221

6-6. IC BLOCK DIAGRAMS

IC1 TA2111FN (EL)
AM-RF IN FM-RF OUT VCC 1 FM OSC AM OSC AFC
24 23 22 21 20 19
AM
FM
OSC
OSC
AM
MIX
FM FM
RF MIX
AGC
1 2 3 4 5 6
FM-RF IN GND LPF3 MIX AGC VCC 2
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
PLUSE DET
DET
CURRENT
RI 2
DET
REF VOLTAGE
FOR SPEED CONTROL
S/S BIAS
3
PRE-GND
4
PRE-OUT(L) DET
5
PRE-NF(L) 6
PRE-OUT(R) 7
PRE-NF(R)
8
FWDIN(L)
9
REVIN(L) 10
FWDIN(R) 11
REVIN(R) 12
REF
SYS
–
CONT
+
VREF
R.F
13 14 15 16 17 18 19 20 21 22
LP2 LP1
DET-OUT MPX-IN BAND MO-ST L OUT R OUT
18 17 16 15 14 13
AF
DECODE
VCO
AF
BUFF
DIVIDE
FM
MUTE
ST/MO
FM/AM
AM FM LEVEL
DET
DET DET
TUN ST
AM FM
LED LED
IF IF
7 8 9 10 11 12
AM FM GND2 TUN- LED ST-LED QUAD
IF IN IF IN
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 LM4863MT
CONTROL
SHUTDOWN 1
CIRCUIT
GND 2
3
+OUT A
VDD 4
-OUT A 5
-IN A 6
GND 7
+IN A 8
GND 9
GND 10
IC501 TA8155FN (ER)
VCC (REC) 1
2
REC OUR (L)
REC AMP
3
REC OUT (R)
PB IN (L) 4
5
PB IN (R)
6 VREF
VREF
7
PB NF (L)
PB AMP
8
PB OUT (L)
9 PB AMP
PB OUT (R)
10
PB NF (R)
REC SW 11 REC / PB
12 PW SW
PW SW
16 16
20 HP-IN
19 GND
18
+OUT B
17
VDD
16 -OUT B
15 -IN B
14
BYPASS
13 +IN B
12 GND
11
GND
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)