Sony CFS-616S Service Manual ▷ View online
– 10 –
TUNER SECTION
0 dB=1 µV
[FM]
Setting:
FUNCTION switch : RADIO
BAND switch : FM
FUNCTION switch : RADIO
BAND switch : FM
[MW]
Setting:
FUNCTION switch : RADIO
BAND switch : MW
FUNCTION switch : RADIO
BAND switch : MW
[SW]
Setting:
FUNCTION switch : RADIO
BAND switch : SW1/SW2
FINE TUNING knob ...................................... mechanical center
FUNCTION switch : RADIO
BAND switch : SW1/SW2
FINE TUNING knob ...................................... mechanical center
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
done by the trimmer capacitors.
(
): Saudi Arabia model
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L2 (L21)
86.5 MHz (87.35 MHz)
CT2
109.5 MHz (107.8 MHz)
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
86.5 MHz (87.35 MHz)
CT1
109.5 MHz (107.8 MHz)
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
455 kHz
MW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
520 kHz (516 kHz)
CT4
1,680 kHz (1,630 kHz)
MW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3
600 kHz
CT3
1,400 kHz
SW1 FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L6
2.2 MHz
CT6
7.3 MHz
SW1 TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L5
2.2 MHz
CT5
7.3 MHz
SW2 FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L8
6.8 MHz
CT8
22.5 MHz
SW2 TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L7
6.8 MHz
CT7
22.5 MHz
FM VCO Adjustment
Setting:
Procedure:
1. Connect the frequency counter to pin 4 and 7 of IC1 as shown
1. Connect the frequency counter to pin 4 and 7 of IC1 as shown
the figure below.
2. Tune the set to 98 MHz.
3. Adjust RV1 for 76 kHz reading on the frequency counter.
3. Adjust RV1 for 76 kHz reading on the frequency counter.
Specifications: 75.95 kHz to 76.05 kHz.
Adjustment Location: TUNER board (See page 11)
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
AM RF SSG
30% amplitude modulation by
400 Hz signal
output level: as low as possible
400 Hz signal
output level: as low as possible
FM RF SSG
0.01
µ
F
TUNER board
CNP1
22.5 kHz frequency deviation
by 400 Hz signal.
output level: as low as possible
by 400 Hz signal.
output level: as low as possible
AM RF SSG
12 pF
30% amplitude modulation by
400 Hz signal
output level: as low as possible
400 Hz signal
output level: as low as possible
TUNER board
CNP1
+
–
–
set
32
Ω
PHONES jack (J301)
level meter
0.001
µ
F
FM RF SSG
Carrier frequency : 98 MHz
Modulation
Modulation
: no modultion
Output level
: 0.1 V (100 dB)
TUNER board
CNP1
+
–
–
TUNER board
IC1 pin
4
+
IC1 pin
7
1
µ
F
33 k
Ω
frequency counter
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T2
10.7 MHz
– 11 –
IC201
RV303 : Tape Speed Adjustment
[ MAIN BOARD ]
(Component side)
(Component side)
IC1
1
4
7
7
SW1 Frequency
Coverage
Adjustment
Coverage
Adjustment
CNP1
FM/SW telescopic
antenna terminal
FM/SW telescopic
antenna terminal
L3: MW Tracking Adjustment
L6
CT6
SW2 Frequency
Coverage
Adjustment
Coverage
Adjustment
L8
CT8
MW Frequency
Coverage
Adjustment
Coverage
Adjustment
L4
CT4
SW1 Tracking
Adjustment
Adjustment
L5
CT5
SW2 Tracking
Adjustment
Adjustment
L7
CT7
CT3: MW Tracking Adjustment
T1: AM IF Adjustment
*
) L2 : Except Saudi Arabia model
L21: Saudi Arabia model
FM Tracking
Adjustment
Adjustment
L1
CT1
FM Frequency
Coverage Adjustment
Coverage Adjustment
CT2
L2/L21
*
T2: FM IF Adjustment
RV1: FM VCO Adjustment
[ TUNER BOARD ]
(Component side)
(Component side)
Adjustment Location:
– 13 –
– 14 –
CFS-616S
SECTION 6
DIAGRAMS
6-1.
BLOCK DIAGRAM – TUNER Section –
18
20
16
13
19
24
22
FM
FRONT-END
FM IF/
DISCRI
DECORDER
AMP
SWITCH
1/2
COUNTER
1/2
COUNTER
AM IF/
DET
PD1
VCO
PD2
AM
FRONT-END
FINE TUNIG
CONTROL
Q1
BAND
SELECTOR
Q2
14
FM RF
IN
IN
FM/AM
FE OUT
CF1, 2
CF3
FM
RF
RF
26
FM
DISCRI
DISCRI
FM
IF IN
IF IN
6
5
L-CH
OUT
R-CH
OUT
R-CH
TUNER L-CH
4
27
29
1
2
3
ST IND
AM
IF IN
IF IN
PILOT DET
LPF2
15
BAND
SELECT
PILOT DET
LPF2
PLL
LPF1
PLL
LPF2
VCO
AM OSC
CT4
L4
MW OSC
VREF
VREF
L3
MW
FERRITE-ROD
ANTENNA
ANT1
FM/SW
TELESCOPIC
ANTENNA
L8
SW2 OSC
L6
SW1 OSC
CV4
VR1
FM OSC
AM RF
IN
IN
L2 (Except Saudi Arabia model)
L21 (Saudi Arabia model)
FM OSC
L1
FM RF
FM/AM FRONT-END,
FM/AM DET, MPX
IC1
CV3
CT3
L7
SW2
ANT
CT7
L5
SW1
ANT
CT5
CT1
CT8
CT6
S1 (7/8)
S1 (8/8)
S1 (6/8)
S1 (2/8)
S1 (3/8)
S1 (4/8)
S1 (1/8)
CV1
CT2
CV2
FINE TUNING
CV1 – CV4
TUNING
CV1 – CV4
TUNING
MW
SW2
SW1
FM
S1
BAND
MW
SW2
SW1
FM
S1
BAND
MW
SW2
SW1
FM
S1
BAND
MW
SW2
SW1
FM
S1
BAND
+
RV1
FM VCO
CT8, L8
SW2 FREQUENCY
COVERAGE
CT6, L6
SW1 FREQUENCY
COVERAGE
CT2, L2
CT2, L21
FM FREQUENCY
COVERAGE
CT4, L4
MW FREQUENCY
COVERAGE
CT3, L3
MW
TRACKING
CT7, L7
SW2 TRACKING
CT1, L1
FM TRACKING
T1
AM IF
T2
FM IF
CT5, L5
SW1 TRACKING
L.P.F.
B.P.F.
B.P.F.
+
AUDIO B+
D3
S1 (5/8)
A
MUTING
B
(Page 15)
(Page 15)
• SIGNAL PATH
: FM/SW
: MW
05
R-ch: Same as L-ch.
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
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