Sony CFS-929SMK2 - Page 20

CFS-929SMK2
2020
IC1 CXA1538S
• IC Block Diagrams
30
321 4 5 6 7 8 9 10 1312 14 1511
VCO
PD 1
PD 2
DECODE AMP
1/2 COUNTER
REGULATOR
FM FE
AM FE
TUNING IND
RIPPLE FILTER
AM IF/DET
FM IF/
DISCRI
MUTING
MULTIPLEX
REGULATOR
MO/ST
SW
AUTO
BLEND
DETUNE
MUTING
CONTROL
29 28 27 26 25 24 23 22 21 20
19
18 17 16
DC
AMP
BU
AMP
BU
AMP
GND PLL LPF2
PILOT DET
LPF2
PILOT DET
LPF2
PLL LPF1
RCH OUT
LCH OUT
ST IND/
VCO CHECK
VCC
RIPPLE
FILTER
AGC AFC1 AGC AFC2
GND
TUNE IND
FM IF IN
AM IF IN
BAND SELECT
VCO MUTE REG AFC MPX REG FM DISCRI AM OSC FM OSC FM RF AM RF IN FM RF IN FE GND FM/AM FE OUT
DC
AMP
ST
MO
REC EQ
REC EQ
LOGIC
32
1 2 3 4 5 6 7 8 9 10 11 12 13 15 1614
31 30 29 28 27 26 25 24 23 22 21 20 1819 17
BIAS IN
LINE-OUT-R
LINE-OUT-L
CD-IN-R
CD-IN-L
RADIO-IN-R
RADIO-IN-L
MIC-IN
A-L B-L
B-R TR-B TR-C TAPE-MODE FNC LPF-L LPF-R
τ BIAS GND VCC REQ-EQ-L REC-EQ-R REC-NF-L REC-NF-R
TAPE-NF-L
TAPE-OUT-L
A-R
TAPE-NF-R
TAPE-OUT-R
MIC/HS
MIC-NF
HS:1.40V OUT (LOW IMP.) NOR:0.35V OUT (HIGH IMP.)
ECM:OPEN MIC:LOW
τ
IC301 BA3426AS
BASS
TREBLE
TREBLE
BASS
22 19 1621 20 18 17
FLAT
FLAT
FLAT
FLAT
MIX
MIX
VREF
15
MUTE
τ
14
RR
ANALOG SWITCH
13
VCC
12
GND
REGULATOR
1 2 3 4 5 6 7 98 10 11
RCH IN
RCH NFB1
RCH BASS
RCH TREBLE
RCH NFB2
RCH OUT
CLASSIC
ROCK
JAZZ
POPS
FLAT
GND VCC RIPPLE REJECTION MUTE
τ
REF VOLTAGE LCH OUT LCH NFB2 LCH TREBLE LCH BASS LCH NFB1 LCH IN
321 5 7 8 104 6 9 11 1312 14
RIPPLE FILTER/
STARTING TIME
IN1
PRE GND
IN2
STAND BY
SIGNAL MUTE
VCC1 VCC2
+OUT2
PWR GND2
-OUT2 -OUT1
PWR GND1
+OUT1
CH 1
CH 2
IC303 LA4663-B
IC302 AN7338K