Sony CFS-1085S Service Manual ▷ View online
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
20
CFS-1085S
SECTION 5
EXPLODED VIEWS
5-1. REAR CABINET SECTION
NOTE:
• -XX, -X mean standardized parts, so they may have
some difference from the original one.
• Items marked “*” are not stocked since they are
seldom required for routine service. Some delay
should be anticipated when ordering these items.
should be anticipated when ordering these items.
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
The components identified by
mark
mark
!
or dotted line with mark
!
are critical for safety.
Replace only with part number
specified.
specified.
2
#5
not supplied
not
supplied
supplied
#6
ANT1
F901
F902
T901
#6
#2
1
3
3
6
4
5
7
8
1
3-930-876-61 CABINET (REAR) (E)
1
3-930-876-71 CABINET (REAR) (EA)
*
2
1-683-141-11 POWER BOARD
3
1-533-233-31 HOLDER, FUSE
4
3-364-532-01 TERMINAL (+ -), BATTERY
5
3-930-901-01 SPRING (BATT -)
6
3-930-900-01 SPRING (BATT +)
7
3-930-878-01 HANDLE
8
3-364-556-01 LID, BATTERY CASE
ANT1
1-501-383-21 ANTENNA, TELESCOPIC
0 F901
1-533-460-11 FUSE, GLASS TUBE (DIA.5) (T315mAL)
0 F902
1-533-471-11 FUSE, GLASS TUBE (DIA.5) (T4AL)
0 T901
1-437-526-11 TRANSFORMER, POWER
• The mechanical parts with no reference number in
the exploded views are not supplied.
• Hardware (# mark) list and accessories are given
in the last of this parts list.
• Abbreviation
EA : Saudi Arabia
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