Sony CFD-S38L User manual
– 1 –
CD Model Name Using Similar Mechanism PMC-D307L
Section CD Mechanism Type KSM-213CDM
Optical Pick-up Name KSS-213C
TC Model Name Using Similar Mechanism CFD-V10
Section Tape Transport Mechanism Type MF-V10-117
SERVICE MANUAL
AEP Model
UK Model
CFD-S38L
CD RADIO CASSETTE-CORDER
CD player section
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wave length: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 µW
(This output is the value measured at a distance of
about 200 mm from the objective lens surface on
the optical pick-up block with 7 mm aperture.)
Spindle speed
200 r/min (rpm) to 500 r/min (rpm) (CLV)
Number of channels
2
Frequency response
20 - 20,000 Hz +1/–2 dB
Wow and flutter
Below measurable limit
Radio section
Frequency range
FM 87.6 - 107 MHz
MW 531 - 1,602 kHz
LW 153 - 279 kHz
IF FM: 10.7 MHz
MW/LW: 450 kHz
Aerials
FM: Telescopic aerial
MW/LW: Built-in ferrite bar aerial
SPECIFICATIONS
– Continued on next page –
Cassette-corder section
Recording system
4-track 2 channel stereo
Fast winding time
Approx. 120 sec. with Sony cassette C-60
Frequency response
TYPE I (normal): 70 - 13,000 Hz
General
Speaker
Full range: 10 cm (4 in.) dia.,
6 ohms, cone type (2)
Outputs
Headphones jack (stereo minijack)
For 16 - 68 ohms impedance headphones
Power requirements
For CD radio cassette-corder:
230 V AC, 50 Hz
9 V DC, 6 R20 (size D) batteries
For memory back-up:
6 V DC, 4 R6 (size AA) batteries
For remote control:
3 V DC, 2 R6 (size AA) batteries
Power consumption
AC 25 W
MICROFILM
Ver 1.0 1999. 03
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TEL 13942296513 QQ 376315150 892498299
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– 2 –
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK !OR DOTTED LINE
WITH MARK !ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
Battery life
For CD radio cassette-corder:
FM recording
Sony R20P: approx. 3.5 h
Sony alkaline LR20: approx. 10 h
Tape playback
Sony R20P: approx. 1.5 h
Sony alkaline LR20: approx. 5 h
CD playback
Sony R20P: approx. 1 h
Sony alkaline LR20: approx. 4 h
Dimensions
Approx. 420 ×156 ×262 mm (w/h/d)
(incl. projecting parts)
MassApprox. 4.7 kg (incl. batteries)
Supplied accessories
AC power cord (1)
Remote control RMT-CS38A (1)
Design and specifications are subject to change without
notice.
CAUTION
Use of controls or adjustments or performance of proce-
dures other than those specified herein may result in haz-
ardous radiation exposure.
Flexible Circuit Board Repairing
•Keep the temperature of the soldering iron around 270˚C during
repairing.
•Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
•Be careful not to apply force on the conductor when soldering
or unsoldering.
Notes on Chip Component Replacement
•Never reuse a disconnected chip component.
•Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
This Compact Disc player is
classified as a CLASS 1
LASER product.
The CLASS 1 LASER
PRODUCT label is located
on the bottom exterior.
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– 3 –
TABLE OF CONTENTS
1. SERVICING NOTES......................................................... 4
2. GENERAL
Playing a CD ........................................................................... 5
Listening to the radio............................................................... 5
Playing a tape .......................................................................... 6
Recording on a tape ................................................................. 6
3. DISASSEMBLY
3-1. Lid, Battery Case................................................................. 7
3-2. Cabinet Assy, Front ............................................................. 7
3-3. Wires ................................................................................... 8
3-4. Transformer, Power ............................................................. 8
3-5. Antenna, Telescopic ............................................................ 9
3-6. Tuner Board......................................................................... 9
3-7. Cabinet (Upper) Assy ........................................................ 10
3-8. Main Board ....................................................................... 10
3-9. CD Mechanism Block ....................................................... 11
3-10. Tape Mechanism Block .....................................................11
4. MECHANICAL ADJUSTMENTS............................... 12
5. ELECTRICAL ADJUSTMENTS
Tape Section .......................................................................... 12
Tuner Section......................................................................... 13
CD Section ............................................................................ 14
6. DIAGRAMS
6-1. IC Pin Description ............................................................. 15
6-2. Circuit Boards Location .................................................... 16
6-3. Block Diagram – CD Section –......................................... 17
6-4. Block Diagram – Main Section – ...................................... 19
6-5. Schematic Diagram – Tuner Section –.............................. 21
6-6. Printed Wiring Board – Tuner Section – ........................... 23
6-7. Printed Wiring Board – Control Section – ........................ 24
6-8. Printed Wiring Boards – Main Section – .......................... 25
6-9. Schematic Diagram – Main Section (1/3) – ...................... 27
6-10. Schematic Diagram – Main Section (2/3) – ...................... 29
6-11. Schematic Diagram – Main Section (3/3) – ...................... 31
6-12. Printed Wiring Boards – Power Supply Section – ............ 33
6-13. Schematic Diagram – Power Supply Section –................. 35
7. EXPLODEDVIEWS
7-1. Front Cabinet Section........................................................ 40
7-2. Cabinet (Rear) Section ...................................................... 41
7-3. Cabinet (Upper) Section.................................................... 42
7-4. Tape Mechanism Section-1 ............................................... 43
7-5. Tape Mechanism Section-2 ............................................... 44
7-6. Optical Pick-up Section .................................................... 45
8. ELECTRICAL PARTS LIST......................................... 46
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– 4 –
CHUCK PLATE JIG ON REPAIRING
On repairing CD section, playing a disc without the lid (CD), use
Chuck Plate Jig.
• Code number of Chuck Plate Jig: X-4918-255-1
SECTION 1
SERVICING NOTES
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
1. Turn ON the OPERATE button and press FUNCTION button
to CD position.
2. Open the lid (CD).
3. Turn on S501 with screwdriver, etc. as following figure.
4. Press the CD flbutton.
5. Confirm the laser diode emission while observing the objecting
lens. When there is no emission,Auto Power Control circuit or
Optical Pick-up is broken.
Objective lens moves up and down three times for focus search.
S501
NOTE FOR REPLACEMENT OF Q61 AND R64 OFTHE
TUNER BOARD
R64 of the tuner board has a different constant due to the different
characteristic of Q61. When replacing R64, check the type name
marking on Q61.
The repair part for Q61 is 2SK514-H only. When replacing Q61,
check the constant of R64.
Q61 R64
2SK514-H (8-729-106-07) 2.2KΩ(1-249-421-11)
2SK514-F (Not supplied) 1.0KΩ(1-249-417-11)
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TEL 13942296513 QQ 376315150 892498299
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– 7 –
• The equipment can be removed using the following procedure.
3-2. CABINET ASSY, FRONT
SECTION 3
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
3-1. LID, BATTERY CASE
Lid, battery
case Cabinet assy,
front Wires Transformer,
power
Antenna,
telescopic Tuner
board
Cabinet (upper)
assy Main
board CD mechanism
block
Tape mechanism
block
Set
1
lid, battery case
2
screw +BVTP 3x10
3
screw +BVTP 3x10
6
screws +BVTP 3x12
4
screws +BVTP 3x1
0
5
screw +BVTP 3x12
1
CNP306
2
CNP502
3
cabinet assy, front
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TEL 13942296513 QQ 376315150 892498299
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– 8 –
3-3.WIRES
3-4.TRANSFORMER, POWER
CABINET (REAR
)
FRONT CABINE
T
ABC
DEF
1
screws +BVTP 3x10
2
screws +BVTP 3x10
3
screws +BVTP 3x10
4
transformer, power
6
CNP901
5
CNP902
Put flat cable and wires between the cabinets and push them in the
grooves located at A to F in the figure to prevent disconnection
before assembling the set.
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TEL 13942296513 QQ 376315150 892498299
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– 9 –
3-6.TUNER BOARD
3-5. ANTENNA,TELESCOPIC
1
screw +B 3x8
2
antenna, telescopic
1
CNP1
2
CNP2
3
screw +BVTP 3x10
4
tuner retainer board
5
TUNER board
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TEL 13942296513 QQ 376315150 892498299
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– 10 –
6
screw +BVTP 3x10
0
screws +BVTP 3x10
8
screw +BVTP 3x10
9
screws +BVTP 3x10
5
holder assy, cassette
7
lid (CD)
!¡
cabinet (upper) assy
!™
handle
4
CNP902
3
CNP901
1
CNP1
2
CNP2
3-7. CABINET (UPPER) ASSY
3-8. MAIN BOARD
1
screws +BVTP 3x10
2
screws +BVTP 3x10
3
screws +BVTP 3x1
0
5
connector
7
connector
6
CNP701
8
CNP301
9
CNP304
!º
CNP305
!¡
MAIN board
4
screw +BVTP 3x12
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TEL 13942296513 QQ 376315150 892498299
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– 11 –
3-9. CD MECHANISM BLOCK
3-10.TAPE MECHANISM BLOCK
1
screws (2.6x10)
2
screws (2.6x10)
3
CD mechanism block
1
screws +BVTP 3x10
2
screw +BVTP 3x1
0
3
tape mechanism block
wiring stopper
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TEL 13942296513 QQ 376315150 892498299
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– 12 –
2
jack (J301)
set
32
Ω
test tape
WS-48A
(3 kHz, 0 dB)
digital frequency
counter
TAPE SECTION 0 dB = 0.775 V
• Standard Output Level
Output terminal HP OUT
load impedance 32 Ω
output signal level 0.25 V (–10 dB)
• Test Tape
Type Signal Used for
WS-48A 3 kHz, 0 dB tape speed adjustment
Tape Speed Adjustment
Procedure:
Mode: playback
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :
record/playback head pinch roller
erase head rubber belts
capstan idlers
2. Demagnetize the record/playback head with a head demagne-
tizer. (Do not bring the head magnetizer close to the erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
Torque Measurement
Mode Torque meter Meter reading
FWD CQ-102C 30 – 70 g • cm
(0.42 – 0.97 oz • inch)
FWD CQ-102C 1.5 – 5.5 g • cm
Back Tension (0.021 – 0.076 oz • inch)
FF CQ-201B more than 60 g • cm
(more than 0.83 oz • inch)
REW CQ-201B more than 60 g • cm
(more than 0.83 oz • inch)
Tape Tension Measurement
Mode Tension meter Meter Reading
FWD CQ-403A more than 100 g
(more than 3.53 oz)
SECTION 5
ELECTRICAL ADJUSTMENTS
SECTION 4
MECHANICAL ADJUSTMENTS
Adjust so that the value on the digital frequency counter is
3,000 Hz.
Specification Value:
Digital frequency counter
2,985 to 3,015 Hz
Adjust so that the frequency at the beginning and that at the end of
tape winding are between 2,955 to 3,045 Hz.
Adjustment Location:
Tape speed adjustment
control inside motor
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TEL 13942296513 QQ 376315150 892498299
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– 13 –
FM FREQUENCY COVERAGE
ADJUSTMENT
Frequency Display 87.5 MHz 108 MHz
Reading on Digital voltmeter 1.6 ± 0.4 V 4.3 ± 0.1V
Adjustment Part <confirmation> L2
FMTRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1 CT1
87.5 MHz 108 MHz
MW FREQUENCY COVERAGE
CHECK
Frequency Display 531 kHz 1,611 kHz
Reading on Digital voltmeter 0.8 + 0.7 V 5.0 + 1.2 V
– 0.5 V – 0.6 V
Adjustment Part <confirmation> <confirmation>
MWTRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3-1 CT3
621 kHz 1,404 kHz
LW FREQUENCY COVERAGE
ADJUSTMENT
Frequency Display 153 kHz 279 kHz
Reading on Digital voltmeter 0.7 + 0.3 V 5.3 ± 0.1 V
– 0.4 V
Adjustment Part <confirmation> L4
LWTRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3-2 CT5
162 kHz 261 kHz
Adjustment Location: See page 14.
digital
voltmeter
100 k
Ω
TP (VT)
(JW17)
2
jack (J301)
set
32
Ω
level meter
(range: 0.5–5 V ac)
Put the lead-wire
antenna close to
the set.
AM RF signal
generator
TP (FM ANT)
FM RF signal
generator
0.01
µ
F
set
TUNER SECTION 0 dB = 1 µV
• FM Section
Setting:
RADIO (BAND) switch: FM
75 kHz frequency
deviation by 1 kHz signal
output level : as low as possible
• MW/LW Section
Setting:
RADIO (BAND) switch: MW or LW
30% amplitude
modulation by
400 Hz signal
• Connecting Level Meter (FM, MW and LW)
• Connecting DigitalVoltmeter (FM, MW and LW)
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
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– 14 –
TP (RFO)
– main board (conductor side) –
Adjustment Location:
CD SECTION
CD section adjustments are done automatically in this set.
In case of operation check, confirm that focus bias.
FOCUS BIAS CHECK
1. Connect the oscilloscope between IC701 pin #£ (TP RFO) and
GND on CD board.
2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)
3. Press the CD flbutton.
4. Confirm that the oscilloscope waveform is as shown in the
figure below. (eye pattern)
A good eye pattern means that the diamond shape ( ) in the
center of the waveform can be clearly distinguished.
• RF signal reference waveform (eye pattern)
π
Test Point:
RF level :
1.2
±
0.1 Vp-p
VOLT/DIV : 200 mV (10 : 1 probe in use)
TIME/DIV : 500 nS
When observing the eye pattern, set the oscilloscope for AC range
and raise vertical sensitivity.
L3-1
CT3
TP (VT)
(JW17)
TP
(FM ANT)
MW
TRACKING
ADJUSTMENT
LW
TRACKING
ADJUSTMEN
T
CT1
L1
FM
TRACKING
ADJUSTMENT
L2
FM
FREQUENCY
COVERAGE
ADJUSTMENT
L4
LW
FREQUENCY
COVERAGE
ADJUSTMENT
L3-2
CT5
– tuner board (component side) –
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TEL 13942296513 QQ 376315150 892498299
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TUNER board
TUNER RETAINER board
HEADPHONE board
BATTERY board
BATTERY COMMON board
PRIMARY board
SECONDARY board
CONTROL board
MAIN board
CD MOTOR board
– 15 – – 16 –
6-2. CIRCUIT BOARDS LOCATION6-1. IC PIN DESCRIPTION
• IC501 CXP83620-007Q (SYSTEM CONTROL)
Pin No. Pin Name I/O Pin Description
1 C-SCOR I CD SCOR input
2 RMC I Sircs receiver input
3, 4 NC — Not used.
5 C-SENS1 I CD SENSE-1 input
6 C-SENS2 I CD SENSE-2 input
7 C-SQCK O CD Sub-Q read clock output
8 C-SQSO I CD Sub-Q data input
9 C-RST O CD reset output
10 C-CLOCK O CD serial clock output
11 C-LATCH O CD serial latch output
12 C-DATA O CD serial data output
13 REC I Tape record signal input L: REC
14 R-COUNT I Tuner PLL data input
15 R-DATA O Tuner PLL data output
16 R-CLOCK O Tuner PLL clock output
17 R-LATCH O Tuner PLL latch output
18 V-LATCH O Volume latch output
19 V-DATA O Volume data output
20 V-CLOCK O Volume clock output
21 P-CON O System power control output
22 DIRECTION — Not used.
23 – 25 KEY-1 – 3 I Key input
26 NC — Not used.
27 INIT O Initial set signal output
28 MODE CHECK I Mode set pin
29 SHIFT CLOCK O Shift clock output
30 RST I System reset input
31 EXTAL I Oscillation input (4.19 MHz)
32 XTAL O Oscillation output (4.19 MHz)
33 VSS — GND
34 VL O LCD drive port ON/OFF output
35 – 37 VLC-3 – 1 O LCD drive voltage terminal
38 – 41 COM0 – 3 O LCD drive common output
42 – 64 SEG0 – 22 O LCD drive segment output
65 NC — Not used.
66 A-MUTE O Audio mute output H: Mute
67 B-MUTE O Tuner block mute output H: Mute
68 C-MUTE O CD block mute output H: Mute
69 TAPE O Tape function output H: Tape
70 RADIO O Tuner function output H: Radio
71 CD O CD function output L: CD
72 VDD — Power supply pin (+5 V)
73 TX O Oscillation output (32.768 kHz)
74 TEX I Oscillation input (32.768 kHz)
75 NC — Not used.
76 ISS1 O Not used.
77 ISS2 O Not used.
78 C-DOOR I CD door open/close switch input L: Close
79 TC-PLAY I Tape play switch input L: Tape
80 REG CHK I Regulator check signal input H: ON
SECTION 6
DIAGRAMS
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1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
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Q
TEL 13942296513 QQ 376315150 892498299
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CFD-S38L
6-3. BLOCK DIAGRAM — CD SECTION —
– 17 – – 18 –
A
B
C
E
F
D
LD
PD
LD ON
SWITCH
Q701
LASER
DIODE
CONTROL
PD1
PD2
LD
PD
E
F
VC
RF AMP
12
10
11
13
14
7
5
9
5CNP901
7
6
4
10
12
3
8
3
2
4
1
14
15
13
16
SERIAL/
PARALLEL
CONVERTER
DECODER
COMMAND
FE AMP
VREF
TTL
IIL XRST
CLK
XLT
DATA
SENS2
SENS1
C. OUT
FOK
RF O
IIL
TTL
42
41
51
13
36
39
37
23
20
21
22
26
25
24
33
27
38
RF AMP & SYSTEM SERVO PROCESSOR
IC701
TRACKING
PHASE FOCUS
PHASE
6 16
TAO
FEO
SLO
19
17
18
TRACKING
COIL
DRIVE
25
7
FOCUS
COIL
DRIVE
TIN
FIN
3
SLED
MOTOR
DRIVE
SLIN
15
SPINDLE
MOTOR
DRIVE
SPI
MUTE
T+
T–
26
27
F+
F–
2
1
SL+
SL–
12
11
SP+
SP–
3
44
3
TRACKING
COIL
FOCUS
COIL
OPTICAL PICK-UP
BLOCK
(KSS-213C)
M
1
26
5
5
62
1
M
M702
SLED
MOTOR
M701
SPINDLE
MOTOR
CNB702
CNP707
OPTICAL PICK-UP
DRIVE
IC702
2
1
S701
(LIMIT)
CD MOTOR BOARD
RF
FOK
CNIN
SEIN
DATO
XLTO
CLKO
XRST
SERVO
AUT
SEQ.
D/A
INTERFACE
SUB CODE
PROCESSOR
EFM DEMODULATOR
DIGITAL
CLV CPU INTERFACE
MDP
XLON
SENS
SQSO
SCOR
SPOA
SQCK
DATA
XLAT
CLOK
SYSM
XTAI
XTAO
SERIAL
INTERFACE
DIGITAL
FILTER
&
D/A
CONVERTER
AOUT1
LOUT1
AOUT2
LOUT2
PWM
AMP
PWM
AMP
CD L-CH
R-CH
MAIN
SECTION
1
2
35
18
11
10
12
13
14
79
21 15 17 6 5 574 7 8 9 62 70•71
65
67
76
74
DIGITAL SIGNAL PROCESSOR
IC703
9
70
78
56 8 7 12 11 10 681
X701
16.9344MHz
XRST
SENS2
SENS1
SQSO
SQCK
SCOR
DATA
XLAT
CLK
MUTE
C-DOOR CD
RADIO
71
CD
SYSTEM CONTROL
IC501 (1/2)
POWER
SWITCH
Q311, 312
POWER
SWITCH
Q313
5V REG
IC502
VDD (AU)RA6V
COM 5VCD5V
KH503
S501
CD DOOR
OPEN/
CLOSE
5
3
1
3
3 2
5V REG
IC901
3 2
VDD
(UCOM)
VDD
KH302
15
24
3
1
4
3
1
4
2
1
3
CNP902
POWER
SWITCH
Q951
POWER
SWITCH
Q952,953
6V REG
Q954, 955
5V REG
Q957
P. CONT
VDD
VDD
MAIN
SECTION
D955 D951 D952
VDD(SW)
COM 5V
VDD(AU)
SECONDARY BOARD
VDD(SW)
AC-HI
LEVEL
DET
Q407
LEVEL
DET
Q405
AC
DET
Q406, 409
AC
DET
Q408
PROTECT
SWITCH
Q401
Q402 Q404
D907
D906
D905
2
1
3
KH901
CNP901
BATTERY
BOARD
BATTERY
COMMON
BOARD
PRIMARY
BOARD
1
2
1
2
KH902CNP906
F902
5A
250V
D901 - 904
T901
POWER
TRANSFORMER CNJ901
AC IN
6V 4.5V
4.5V
KH905 CNP904
3
MAIN
SECTION
MAIN BOARD (1/2)
04
• Signal path
: CD
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1
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0
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2
8
9
4
2
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8
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3
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4
2
2
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6
5
1
3
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2
9
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5
1
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Q
TEL 13942296513 QQ 376315150 892498299
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6-4. BLOCK DIAGRAM — MAIN SECTION —
CFD-S38L
– 19 – – 20 –
CD SECTION
1
CD L-CH 24
5
6
21 22
4
CNP301
CNP305
CNP304
L-CH
R-CH
HRP301
RECORD/
PLAYBACK
HEAAD
HE301
ERASE HEAD
R-CH
DET
ALC 2
RADIO L
20
18
15
OUT-L
OUT-R
TAPE
Q308
R-CH
31
23
24
21
IN1 TONE VOL OUT1
BC
CONTROL
VC
20
CK
19
DATA
18
LATCH
VOLUME/SOUND CONTROL
IC302
STBY
12 103 5
8
POWER AMP
IC303
P.CONT
DBB
CONTROL
Q309
R-CH
KH306 CNP306
R-CH
R-CH
SP301
SPEAKER
L-CH
SP302
SPEAKER
R-CH
J301
2
1
3
2
1
3
HEADPHONE
BOARD
REF
CD L
REC L
Q322-325
REC
T301
BIAS OSC
Q301
Q321
Q326
4
3
2
1
2
COM5V
S305
(REC)
REC
13
F-TAPE
ISS2
ISS1
69
A-MUTE
CLOCK
DATA
CE
P-CON
66
29
38–41 43–64 73•74 23–25
79
17 16 15 21
TC PLAY
LIQUID CRYSTAL
DISPLAY
LCD501
KH303
1
1
4
4CNP2
2
6
435
12 13
SYSTEM CONTROL
IC501 (2/2)
20 19
67
18 21
COM0
|
COM3
SEG0
|
SEG22
CE
CLK
DATA
COUNT
SFT-CLK
30
RST
MUTE
2
RMC
8
REG CHK
KEY1
|
KEY3
31
EXTAL1
32
XTAL1
TX
TXE
TUNER
21 20
X501
4.19MHz
X502
32.768kHz CLOCK
SHIFT
Q505, 506
RESET
IC503
IF REQ
Q13
AM HIGH
CUT
Q12
POWER
SWITCH
Q503
POWER
CONTROL
Q501
POWER
SWITCH
Q502
VDD (UCOM)
KH506
5
5
4
4
1
1
3
3
2
2
CNP1
VOL
1,2,4 7
1,2,4 7
S601-607
S609-614
S617-624
1
3
IR
RECEIVE
IC601
CNP602
CNP502
66
88
VDD (SW)
D601
OPR/BATT
VDD (UCOM)
AC HI CD
SECTION
3
Signal path
: FM
: MW
: PB
: REC
: CD
R-ch : same as L-ch.
CE
CL
DI
DO
AM IN
FM IN
XOUT
XIN
14
MO/ST
11
IF IN
MO/ST
BAND
ST-IND
OSC
10
BAND
8
BAND
9
ST-IND
LW
19 LP
7MW
AM
OSC
AM
MIX
FM
MIX
FM
OSC
AM RF
FM
RF
X1
75kHz
PLL
IC2
14 17 13 18
16 15 11
12
1920
22 4 6
7
10
2
2124
T1
CF4
L2
L1 CT1
RA6VRA6V
D1 D2
CT3 CT5
D3
-2
LW -1
MW
CT3,L3-1
MW
TRACKING
CT5,L3-2
LW
TRACKING
L4
LW FREQUENCY COVERAGE
CT1,L1
FM
TRACKING
L2
FM
FREQUENCY
COVERAGE
BPF
FL1
ANT1
FM
TELESCOPIC
ANTENNA
IF
BUFFER
AM
DET
FM
DET
IF CUT
AF
BUFFER FM
MPX MUTE
IF CUT
R
LR-CH
CF3
RA6V
QUAD
FM/MW/LW FRONT-END, IF DET,
FM STEREO DEMODULATOR
IC1
L4
2
1
CF2
RA6V
CF1
RA6V
CONTROL BOARD
04
3
4
5
VDD(SW)
S304
TAPE
PLAY
S303
MOTOR
ON/OFF
M
M301
CAPSTAN/
REEL
MOTOR
MAIN BOARD (2/2)
REF
CD
SECTION
2
REC/PB
PRE-AMP
IC301
TUNER BOARD
ISS SW
Q302
ISS SW
Q303
7776
MW SW
Q41 L3
MW/LW
FERRITE-ROD
ANTENNA
LW SW
Q43
LW SW
Q44
VDD(SW)
REG
Q61
MW SW
Q42
MW SW
Q40 LW SW
Q2
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1
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0
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9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
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Q
TEL 13942296513 QQ 376315150 892498299
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CFD-S38L
– 21 – – 22 –
6-5. SCHEMATIC DIAGRAM —TUNER SECTION — • Refer to page 37 for IC Block Diagrams.
-1
MW -2
LW
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
•¢: internal component.
•U: B+ Line.
•H: adjustment for repair.
• Power voltage is dc 9V and fed with regulated dc power
supply from battery terminal.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
( ) : MW
<>:LW
• Voltagesare takenwith aVOM(Input impedance 10MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F: FM
f: MW
(Page 31)
(Page 27)
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1
5
0
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9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
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CFD-S38L
– 23 –
6-6. PRINTED WIRING BOARD —TUNER SECTION — • Refer to page 16 for Circuit Boards Location.
– 24 –
TUNER BOARD
ANT1
FM TELESCOPIC
ANTENNA
11
1–673–206–
04
L3
MW/LW FERRITE-
ROD ANTENNA
(FM ANT)
(VT)
-1
MW
-2
LW
1
A
B
C
D
E
F
G
H
I
23456
Note:
•X: parts extracted from the component side.
•¢: internal component.
•b: Pattern from the side which enables seeing.
6-7. PRINTED WIRING BOARD — CONTROL SECTION — • Refer to page 16 for Circuit Boards Location.
1
A
B
C
D
E
F
G
H
234567
04
(11)
OPERATE PLAY MODE
MONO/ST ISS
1-673-205-
Note:
•X: parts extracted from the component side.
•b: Pattern from the side which enables seeing.
(Page 26) (Page 26)
(Page 26)
D1 E-5
D2 D-4
D3 C-4
D5 G-5
D6 H-5
D10 B-1
D11 B-1
IC1 F-4
IC2 F-1
Q2 D-1
Q12 D-4
Q13 D-2
Q40 C-1
Q41 B-5
Q42 C-4
Q43 B-4
Q44 C-2
Q61 H-2
• Semiconductor
Location
(tuner board)
Ref.No. Location
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1
5
0
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9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
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CFD-S38L
– 25 – – 26 –
6-8. PRINTED WIRING BOARDS — MAIN SECTION — • Refer to page 16 for Circuit Boards Location.
1
A
B
C
D
E
F
G
H
I
234567891011121314
1-658-023-
S701
(LIMIT)
M702
SLED MOTOR CNP707
31
M
M701
SPINDLE MOTOR
M
16
HEADPHONE BOARD
CD MOTOR BOARD
04
2
L-CH
HRP301
RECORD/PLAYBACK HEAD
HE301
ERASE HEAD
R-CH
1
S305
(REC)
2
16
M301
CAPSTAN/REEL
MOTOR
S304
(TAPE PLAY)
S303
(MOTOR
ON/OF)
M
1
2
3
4
CNP1
CNP2
(11)
C318
C593
C362
C586
C587
C739
(11)
C292
R291
C192
R191
(Page 23)
(Page 24)
(Page 23)
(Page 34)
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2
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4
2
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8
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TEL 13942296513 QQ 376315150 892498299
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