Read Sony CFS-1085SMK2 Service Manual online
CFS-1085SMK2
18
18
IC303 MM1468XD
4-8. IC BLOCK DIAGRAMS
– MAIN Board –
IC301 TA2068N
1
N.C
2
B.S.2
3
OUT1
4
B.S.1
OUT2
VCC
5
POWER GND
6
ST
-BY
7
FL
TR
8
NF1
9
IN1
10
IN2
11
NF2
12
PRE GND
PRE GND
13
14
15
BS
BS
ST. BY
FILTER
T. S. D
23
22
21
4
5
6
3
2
1
20
24
7dB
LOGIC
ALC1
DET
26dB
15
16
17
9
8
7
10
11
12
18
19
14
13
7dB
ALC2
26dB
15k
6k
6k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
1k
1k
1k
1k
LINE
RADIO
RADIO
TAPE
TAPE
TAPE
L.RAD
MIC
I/EX
L.CD
RADIO
R.CD
TAPE
R.RAD
MIC
REC
L.LO
R.LO
VCC
LINE
TAPE
BUF AMP
A2
BUF AMP
B1
BUF AMP
B2
BUF AMP
A1
MIC
AMP1
MUTE
MUTE
MUTE
ON
ON
ON
NAB
AMP2
MONITOR
AMP
MONITOR
AMP
NAB
AMP1
REC
AMP2
REC
AMP1
REF AMP
2.1
L.PO
L.NF
L.RO
L.IN
R.IN
R.RO
R.NF
R.PO
MIC
NF
REF
GND
AGC
6
5
LATCH
VOUT
NC
VH
DET
VL
DET
7 TC
8 VCC
3
4
2
1
GND
VM
NC
CONT
VCC
IC102,202 BA5417
– TUNER Board –
IC1 CXA1538S
IC302 AN7338K
22
21
4
5
6
3
2
1
20
TREBLE
BASS
VREF
MUTE
τ
RR
REGULATOR
VCC
GND
ANALOG SWITCH
15
16
17
9
8
7
10
11
12
18
19
14
13
TREBLE
BASS
FLAT
FLAT
FLAT
MIX
MIX
MIX
FLAT
LIN
NF1L
BFL
TFL
NF2L
LOUT
FLAT
GROOVE
LIVE
POPS
CINEMA
RIN
NF1R
BFR
TFR
NF2R
ROUT
VREF
MUTE
RR
VCC
GND
REG
FM FRONT-END
AM FRONT-END
VCO
REG
MPX REG.
PD 1
PD 2
MONO/ST
SELECT
SELECT
1/2
COUNTER
1/2
COUNTER
MUTING
DECORD AMP
AUTOBLEND
RIPPLE
FILTER
BAND PASS
MUTE
TUNING
INDICATOR
AM
IF / DET
GND
PLL LPF 1
PILOT DET
LPF 1
PILOT DET
LPF 2
ST IND/
VCO CHECK
RCH OUT
LCH OUT
VCC
RIPPLE
FILTER
AFC/AGC 1
AFC/AGC 2
GND
TUND IND
FM IF IN
AM IF IN
BAND SELECT
PLL LPF2
MPX REG
VCO
FM
DISCRI
MUTE
AM OSC
AFC
FM OSC
REG OUT
FM RF
AM RF IN
FM RF IN
FM/AM
FE OUT
FE GND
2
3
5
4
6
7
8
9
10
1
11
12
13
14 15
16
17
18
19
20
30
29
28
27
26
25 24 23 22
21
FM IF /
DISCRI
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