Sony CFS-1085S Service Manual ▷ View online
CFS-1085S
16
16
4-5. SCHEMATIC DIAGRAM – TUNER SECTION –
• See page 12 for Notes.
• See page 19 for IC Block Diagrams.
• See page 19 for IC Block Diagrams.
CNP1
CV1
S1(8/8)
C1
L5
D1
D2
C22
L7
S1(5/8)
S1(6/8)
S1(7/8)
C24
CT6
L6
C23
CT8
L8
C25
L4
C26
C27
C28
S1(1/8)
S1(3/8)
R16
R14
C34
Q1
R15
C21
CF3
R6
C11
C20
R11
C19
C6
C5
R2
C7
C3
C2
C37
L13
R3
CF4
R5
CF1
R4
C9
Q2
C13
R19
S1(4/8)
D5
C15
C10
C12
R24
C31
C17
R8
R7
C16
R9
C18
CN304
S1(2/8)
C36
C29
L2
L1
R13
C14
RV1
T1
VR1
IC1
ANT1
C4
D6
R20
Q3
R21
R22
R25
D3
R18
220p
1SS133
1SS133
4.7p
3p
3p
1500p
4700p
390p
1k
100k
0.001
KRC3198GR
1k
10
10V
100
2.2
50V
50V
0.47
50V
2.2k
4.7
50V
10
50V
100k
2.2
0.01
100p
0.47
2.2k
680
330
100p
KRC107M-AT
0.01
10k
1SS133
1
50V
47
16V
47
16V
150
0.01
0.01
6.8k
6.8k
0.01
680
1
50V
0.001
20p
10k
4.7
50V
50V
22k
100K
CXA1538S
FM/SW
TELESCOPIC
ANTENNA
0.01
1SS133
10k
KRC107M-AT
10k
10k
3.3k
L-34HD
3.3k
R
L
FM
SW1
SW2
MW
FM
SW1
SW2
MW
GND
MUTE
ST
*
*
*
*
*
-3
CV1-C
T
3
CV1-1
CV1-CT1
CV1-2
CV1-CT2
CV1-4
CV1-CT4
CV1(1/4)
CV1(2/4)
CV1(4/4)
EA
C2
C6
FM
SW1
SW2
MW
FM
SW1
SW2
MW
FM
SW1
SW2
MW
FM
SW1
SW2
MW
FM
SW1
SW2
MW
+B
FM/AM
DET,FM MPX
FRONT-END,IF,
FM
SW1
SW2
MW
REF
18P
18P
12P
10P
E
33P
C25
33P
FERRITE-ROD
L3
ANTENNA
FM
TRACKING
FM VCO
FREQUENCY
COVERAGE
FREQUENCY
COVERAGE
FREQUENCY
COVERAGE
FREQUENCY
COVERAGE
FM
AM IF
FINE TUNING
L5
TRACKING
TRACKING
TRACKING
L7
MW
SW2
SW1
MW
L1,CT1
L2,CT2
MW
L8,CT8
SW2
L6,CT6
SW1
FINE TUNING
SELECT
BAND
L3,CT3
L4,CT4
E
TUNING
FM STEREO
BOARD
MAIN
CNP304
17
CFS-1085S
4-6. PRINTED WIRING BOARD – TUNER SECTION –
• See page 12 for Circuit Boards Location.
Ref. No.
Location
• Semiconductor
Location
D1
E-5
D2
E-5
D3
D-1
D5
D-1
D6
A-4
IC1
B-3
Q1
E-2
Q2
A-4
Q3
B-4
Note:
• X
: parts extracted from the component side.
•
: Pattern of the rear side.
C14
C15
C12
C10
C18
C20
C19
C5
C11
C21
R7
R20
R22
R21
R8
R24
R11
R9
R16
R13
R2
R18
R6
R4
R3
R5
R19
R25
R15
R14
C38
C34
C7
C4
C36
E MODEL
C6
C2
D5
C16
C17
C31
CF1
CF4
C9
C13
C28
C25
C27
C22
C1
C23
C26
C29
C24
B
C
E
Q1
L6
L8
L4
L7
L5
CT8
CT6
CV1
CV2
CV3
CV4
CT3
CT4
CT1
CT2
VR1
FINE
TUNING
D3
FM STEREO
RV1
D2
D1
1
2
2
CNP1
ANT1
FM/SW
TELESCOPIC
ANTENNA
L3
MW
FERRITE-ROD
ANTENNA
L2
L1
L13
B
C
E
Q2
B
C
E
Q3
IC1
TUNER BOARD
A
MAIN
BOARD
CN304
CN304
1
6
CF3
T1
CV1-4
TUNING
-2
-1
-4
-3
-5
-8
-6
-7
S1
BAND
FM SW1 SW2 MW
t
t
t
13
(13)
1-651-230-
D6
1
5
10
15
16
20
25
30
2
3
4
5
A
1
B
C
D
E
F
18
CFS-1085S
IC303 MM1468XD (MAIN board)
4-7. IC BLOCK DIAGRAMS
IC301 TA2068N (MAIN board)
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 (MAIN board)
19
CFS-1085S
IC1 CXA1538S (TUNER board)
IC302 AN7338K (MAIN board)
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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