Sony CFD-S40CP Service Manual ▷ View online
11
CFD-S40CP
6
Mechanism deck
2
Optical pick-up block
4
CD motor board
8
TC board
5
Screw
(+BVTP 3
× 10)
5
Screws (+BVTP 3
× 10)
1
Screws (+PWH 2.6
× 10)
1
Screws
(+PWH 2.6
× 10)
3
Remove solder
7
Screw (+BVTT 2
× 4)
Cabinet (upper)
Mechanism deck
5
HRP301
Head, magnetic (record / playback)
6
HE301
Head (erase)
1
Screws
+B 2.6
× 5
4
M321
(Capstan/reel motor)
2
3
Belt
3-8. OPTICAL PICK-UP BLOCK, MECHANISM DECK, CD MOTOR BOARD, TC BOARD
3-9. M321 (CAPSTAN/REEL MOTOR), BELT,
HRP301 HEAD, MAGNETIC (RECORD/PLAYBACK),
HE301 HEAD (ERASE)
HE301 HEAD (ERASE)
12
CFD-S40CP
4
Connector
(from Battery common
board CNP904)
board CNP904)
6
Battery common board
5
Screw
(+WH 3
× 8)
5
Screw
(+WH 3
× 8)
2
Screws
(+BVTP 3
× 10)
3
2
Screws
(+BVTP 3
× 14)
6
Battery board
1
Connector
(from Secondary board CNP901)
Power ASSY
Cabinet (rear)
Tuner board
2
Tuner retainer boards
1
Screw
(+BVTP 3
× 10)
3
Cabinet (rear)
3-10. POWER ASSY, BATTERY BOARD, BATTERY COMMON BOARD
3-11. TUNER BOARD
13
CFD-S40CP
4-1. MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :
record/playback head
pinch roller
erase head
rubber belts
capstan
2. Demagnetize the record/playback head with a head demagne-
tizer. (Do not bring the head demagnetizer close to the erase
head.)
head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. The adjustments should be performed with the rated power sup-
4. The adjustments should be performed with the rated power sup-
ply voltage (9V) unless otherwise noted.
Torque Measurement
Torque
Torque Meter
Meter Reading
1.77 – 5.88 mN•m
Forward
CQ-102C
(18 – 60 g•cm)
(0.25 – 0.83 oz•inch)
Forward
0.1 – 0.49 mN•m
Back Tension
CQ-102C
(1.0 – 5.0 g•cm)
(0.014 – 0.069 oz•inch)
4.42 – 9.31 mN•m
Fast Forward
CQ-201B
(45 – 95 g•cm)
(0.62 – 1.32 oz•inch)
4.42 – 9.31 mN•m
Rewind
CQ-201B
(45 – 95 g•cm)
(0.62 – 1.32 oz•inch)
Tape Tension Measurement
Torque Meter
Meter Reading
CQ-403A
more than 60g
(more than 2.12 oz)
SECTION 4
ADJUSTMENTS
4-2. ELECTRICAL ADJUSTMENTS
TAPE RECORDER SECTION
Standard Output Level
Output terminal
HP OUT
load impedance
32
Ω
output signal level
0.25V (–10dB)
Test Tape
Type
Signal
Used for
WS-48A
3kHz, 0dB
Tape Speed Adjustment
Tape Speed Adjustment
Procedure :
Procedure :
Mode : Playback
Adjustment Value : 3,000Hz
Standard Value : 2,940 - 3,060Hz
Standard Value : 2,940 - 3,060Hz
Frequency difference between the beginning and the end of the tape
should be within 1.5% (45Hz).
should be within 1.5% (45Hz).
set
test tape
WS-48A
(3kHz, 0dB)
WS-48A
(3kHz, 0dB)
32
Ω
digital frequency
counter
counter
J301 (phones)
Tape speed adjustment
control inside motor
control inside motor
0dB = 0.775V
Adjustment Location : Mechanism deck
14
CFD-S40CP
MW/LW IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
455kHz
( ): AEP, UK
AM (MW) FREQUENCY COVERAGE CHECK
Frequency Display
530 kHz
1,710 kHz
(531 kHz)
(1,611 kHz)
Reading on Digital voltmeter
1.0 (0.8)
+ 0.7 V
4.8 (5.0)
+ 1.2 V
– 0.5 V
– 0.6 V
Adjustment Part
<confirmation>
<confirmation>
( ): AEP, UK
AM (MW) TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L4 (L3)
CT3
620 kHz (621 kHz)
1,400 kHz (1,404 kHz)
LW FREQUENCY COVERAGE ADJUSTMENT (AEP, UK)
Frequency Display
153 kHz
279 kHz
Reading on Digital voltmeter
0.7
+ 0.3 V
5.0
± 0.1 V
– 0.4 V
Adjustment Part
<confirmation>
L4
LW TRACKING ADJUSTMENT (AEP, UK)
Adjust for a maximum reading on level meter.
L3
CT5
162 kHz
261 kHz
FM FREQUENCY COVERAGE ADJUSTMENT
Frequency Display
87.5 MHz
108 MHz
Reading on Digital voltmeter
1.6
± 0.4 V
4.0
± 0.3 V
Adjustment Part
<confirmation>
L2
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
CT1
87.5 MHz
108 MHz
Adjustment Location : Main board (See page 15)
• 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.
TUNER SECTION
AM Section
Function switch : AM (US, Canadian, Korean, Taiwan)
MW or LW (AEP, UK)
Volume
: MIN
FM Section
Function switch : FM
Volume
Volume
: MIN
• Connecting Level Meter (FM and AM)
• Connecting Digital Voltmeter (FM and AM)
AM RF signal
generator
generator
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
signal.
Output level : as low as possible
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
FM RF signal
generator
generator
22.5kHz frequency deviation by
1kHz signal.
Output level : as low as possible
1kHz signal.
Output level : as low as possible
telescopic
antenna
terminal
antenna
terminal
0.01
µF
0dB = 1
µV
i
jack
set
32
Ω
level meter
(range: 0.5–5 V ac)
(range: 0.5–5 V ac)
digital
voltmeter
voltmeter
100 k
Ω
TP (VT)
(JW17)
(JW17)
Ver 1.1 12001.07
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