Sony CFS-616S Service Manual ▷ View online
CFS-616S
– 15 –
– 16 –
– 17 –
6-2.
BLOCK DIAGRAM – MAIN Section –
1
9
19
17
10
12
32
2
29
30
3
27
28
14
15
R-CH
S302
(2/4)
S302
(4/4)
REC BIAS OSC
IC301 (2/2)
BIAS B+
BIAS
B+
BIAS B+
AUDIO B+
AUDIO B+
BIAS B+
BIAS OSC
TR C
TR C
BIAS
OSC
TR B
OSC
TR B
T301
BIAS OSC
DECK B
HE901
(ERASE)
R-CH
R-CH
L-CH
R-CH
L-CH
DECK A
HRP901
(REC/PB)
HP901
(PB)
A-L
TUNER
IN L
LINE IN L
MIC
IN
BIAS
B+
7
NOR/HS
B-L
31
B-R
PB NF L
PB EQ L
FUNC
MODE
R-CH
R-CH
D416 – 420
AUDIO
B+
BATT B+
POWER AMP
(IC101, 201) B+
DRY BATTERY
SIZE ‘‘D’’
(IEC DESIGNATION R20)
6PCS. 9V
D401 – 415
OUT L
IN1
OUT1
OUT2
IN
POWER AMP
IC201 (2/2)
GRAPHIC EQUALIZER AMP
IC302
REC/PB EQ AMP,
FUNCTION SWITCH,
AGC
IC301 (1/2)
OUT
SW
VOL
IN2
15dB
15dB
OUT R
17
6
4
10
13
S302
(REC/PB)
REC
PB
S302 (3/4)
(REC/PB)
REC
PB
S302 (1/4)
(REC/PB)
REC
PB
S503
(DECK B PLAY)
RV302
PB EQ
AMP
INPUT
SELECT
SWITCH
REC
EQ AMP
EQ
EQ AMP
Q402
DSS
SWITCHING
Q401
CAPSTAN/REEL
MOTOR DRIVE
Q304, 306
NORMAL/HIGH
SPEED SWITCHING
Q303
MOTOR CONTROL
SWITCH
Q307
MUTING
Q101
MUTING
Q201
MUTING
CONTROL SWITCH
Q302, 305
AGC
CIRCUIT
MIC
AMP
POWER
AMP
GRAPHIC
EQUALIZER
AMP
CONTROL
8
SW
8
10
5
IN
POWER AMP
IC101 (2/2)
OUT
POWER
AMP
10
5
IN
HEADPHONE AMP
IC101 (12)
OUT
HEADPHONE
AMP
12
3
IN
HEADPHONE AMP
IC201 (12)
OUT
HEADPHONE
AMP
12
3
REGULATOR
Q301
AUDIO B+
LOGIC
TUNER L-CH
A
MOTOR B+
(Page 14)
MUTING
05
R-ch: Same as L-ch.
B
(Page 14)
ECM301
MIC
S303
ISS
5 BAND GRAPHIC
EQUALIZER
3
2
1
S401 (1/2)
PRESET MODE
S401 (2/2)
PRESET
MODE
MANUAL
DISCO
PARTY
LIVE
MANUAL
DISCO
PARTY
LIVE
S301 (2/2)
FUNCTION
BALANCE
RV301
VOLUME
VOLUME
VOLUME
RV303
TAPE SPEED
(NORMAL)
RADIO
HIGH
NORM
DUBBING
TAPE/RADIO OFF
RADIO
HIGH
NORM
DUBBING
TAPE/RADIO OFF
S301 (1/2)
FUNCTION
D301
OPR/BATT
S504
(DECK A PLAY)
S502
(DECK A POWER)
F902
T901
POWER
TRANSFORMER
S501
(DECK B POWER)
S505
(MOTOR DIRECTION)
DECK B
1 – 3, 20 – 22
D305
SP101
(WOOFER)
J301
2
(PHONES)
L-CH
R-CH
SP102
(TWEETER)
SP202
(TWEETER)
SP201
(WOOFER)
J302
SPEAKER
IMPEDANCE 6
Ω
M
A
MOTOR B+
BATT B+
M901
(CAPSTAN/REEL)
B
D303
D304
RECT
D901 – 904
VOLTAGE
SELECTOR
S901
J901
AC IN
• SIGNAL PATH
: TUNER
: TAPE PLAY (DECK A)
: TAPE PLAY (DECK B)
: TAPE REC (DECK B)
: MIC INPUT
CFS-616S
– 18 –
– 19 –
– 20 –
6-3.
PRINTED WIRING BOARD – TUNER Section –
•
See page 18 for Circuit Boards Location.
• Circuit Boards Location
• Semiconductor
Location
Ref. No.
Location
D1
E-2
D2
E-2
D3
D-2
IC1
D-4
Q1
C-3
Q2
D-4
Note on Printed Wiring Board:
• X
: parts extracted from the component side.
•
¢
: internal component.
• b
: Pattern from the side which enables seeing.
•
Abbreviation
EA: Saudi Arabia model.
EA: Saudi Arabia model.
POWER (A) board
POWER (B) board
BATT (+) board
BATT (–) board
TUNER board
REC SW board
MAIN board
VOL board
ECM board
TRANSLATION (HEAD) board
CFS-616S
– 21 –
– 22 –
– 23 –
6-4.
SCHEMATIC DIAGRAM – TUNER Section –
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
¢
: internal component.
•
C
: panel designation.
•
U
: B+ Line.
•
H
: adjustment for repair.
• Power voltage is dc 9V and fed with regulated dc power
supply from battery terminal.
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : FM
(
no mark : FM
(
) : MW
<
> : SW
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Signal path.
F
: FM/SW
f
: MW
• Abbreviation
EA: Saudi Arabia model.
VCO
REGULATOR
FM FRONT-END
AM FRONT-END
MPX
REGULATOR
MONO/STEREO
SELECT
DECORD
AMP
MUTING
AUTO
BLEND
TUNING
INDICATOR
AM IF/
DET
FM IF/
DISCRI
RIPPLE
FILTER
BAND-PASS
MUTE
1
27
28
29
30
24
25
26
21
22
23
18
19
20
16
17
2
3
4
5
6
7
8
9
PLL LPF1
PILOT DET LPF2
PILOT DET LPF2
ST IND/VCO CHECK
L-CH OUT
VCC
R-CH OUT
RIPPLE FILTER
AGC AFC1
10
AGC AFC2
13
FM IF IN
14
AM IF IN
15
BAND SELECT
11
GND
12
TUNE IND
1/2
COUNTER
1/2
COUNTER
PD1
PD2
FM/AM FE OUT
FM GND
FM RF IN
AM RF IN
FM RF
REG
FM OSC
AFC
AM OSC
MUTE
FM DISCRI
GND
PLL LPF2
MPX REG
VCO
• IC Block Diagram
IC1
CXA1238S
CFS-616S
– 24 –
– 25 –
– 26 –
6-5.
PRINTED WIRING BOARDS – MAIN Section –
•
See page 18 for Circuit Boards Location.
D419
H-10
D420
H-10
D901
J-2
D902
J-2
D903
J-2
D904
J-2
IC101
F-7
IC201
D-7
IC301
E-10
IC302
G-10
Q101
G-11
Q201
F-10
Q301
G-7
Q302
H-9
Q303
C-8
Q304
C-8
Q305
F-11
Q306
D-8
Q307
G-9
Q401
H-11
Q402
H-11
Ref. No.
Location
Ref. No.
Location
D301
H-7
D302
G-8
D303
G-8
D304
D-8
D305
G-8
D306
G-7
D401
G-11
D402
G-12
D403
G-12
D404
F-11
D405
G-12
D406
F-12
D407
F-11
D408
G-12
D409
F-12
D410
F-11
D411
G-12
D412
F-12
D413
F-11
D414
G-12
D415
F-12
D416
H-10
D417
H-10
D418
H-10
• Semiconductor Location
Note on Printed Wiring Board:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
• b
: Pattern from the side which enables seeing.
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