Sony CFD-S36 - Cd Radio Cassette-corder User manual

1
CD
Model Name Using Similar Mechanism CFD-S22/S32
Section CD Mechanism Type KSM-213CDP
Optical Pick-up Name KSS-213C
TC Model Name Using Similar Mechanism CFD-V5
Section Tape Transport Mechanism Type MF-V5-117
SERVICE MANUAL
Canadian Model
CFD-S36
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 - 108 MHz
AM: 530 - 1,710 kHz
Antennas
FM: Telescopic antenna
AM: Built-in ferrite bar antenna
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): 80 - 10,000 Hz
General
Speaker
Full range: 10 cm dia.,
3.2 ohms, cone type (2)
Outputs
Headphones jack (stereo minijack)
For 16 - 68 ohms impedance headphones
Power output
2.3 W + 2.3 W (at 3.2 ohms, 10 %
harmonic distortion in AC operation)
Power requirements
For CD radio cassette-corder:
120 V AC, 60 Hz
9 V DC, 6 size D (R20) batteries
For remote control
3 V DC, 2 size AA (R6) batteries
Power consumption
AC 20 W
Photo: SILVER
Ver 1.0 2001.02
Sony Corporation
Audio Entertainment Group
General Engineering Dept.
9-873-061-31
2001B0400-1
© 2001.2

2
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH MARK 0ON 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. 13.5 h
Sony alkaline LR20: approx. 20 h
Tape playback
Sony R20P: approx. 7.5 h
Sony alkaline LR20: approx. 15 h
CD playback
Sony R20P: approx. 2.5 h
Sony alkaline LR20: approx. 7 h
Dimensions
Approx. 420 ×159 ×284 mm (w/h/d)
(16 5/8 ×6 3/8 ×11 1/4 inches) (incl. projecting parts)
Mass
Approx. 3.8 kg (8 lb. 6 oz.) (incl. batteries)
Supplied accessories
AC power cord (1)
Remote control RMT-CS36A (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.
CFD-S36
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

3
TABLE OF CONTENTS
1. SERVICING NOTES......................................................... 4
2. GENERAL............................................................................ 5
3. DISASSEMBLY
3-1. Cabinet (Front) Sub Assy .................................................... 6
3-2. Wires ................................................................................... 7
3-3. Power (1) Board, Power (2) Board ...................................... 7
3-4. Cabinet (Upper) Assy .......................................................... 8
3-5. Main Board ......................................................................... 8
3-6. CD Mechanism Block ......................................................... 9
3-7. Tape Mechanism Block ....................................................... 9
3-8. Holder Assy, Cassette ........................................................ 10
3-9. PRE Board ......................................................................... 10
3-10. Belt, M801 (Capstan/Reel Motor),
HRP301 (Head, Magnetic) ................................................ 11
3-11. Optical Pick-up ................................................................. 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 .................................................... 15
6-3. Block Diagram –CD Section –......................................... 16
6-4. Block Diagram –Main Section –...................................... 17
6-5. Printed Wiring Board –CD Section –............................... 18
6-6. Schematic Diagram –CD Section –.................................. 19
6-7. Printed Wiring Boards –Main Section –.......................... 20
6-8. Schematic Diagram –Main Section (1/4) –...................... 21
6-9. Schematic Diagram –Main Section (2/4) –...................... 22
6-10. Schematic Diagram –Main Section (3/4) –...................... 23
6-11. Schematic Diagram –Main Section (4/4) –...................... 24
6-12. Printed Wiring Boards –Control Section –....................... 25
6-13. Schematic Diagrams –Control Section –......................... 26
6-14. Printed Wiring Boards –Power Supply Section –............ 27
6-15. Schematic Diagrams –Power Supply Section –............... 28
7. EXPLODED VIEWS
7-1. Cabinet (Front) Section ..................................................... 32
7-2. Cabinet (Rear) Section ...................................................... 33
7-3. Cabinet (Upper) Section .................................................... 34
7-4. Tape Mechanism Section-1 ............................................... 35
7-5. Tape Mechanism Section-2 ............................................... 36
7-6. Optical Pick-up Section .................................................... 37
8. ELECTRICAL PARTS LIST......................................... 38
CFD-S36

4
CFD-S36
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 POWER button and press FUNCTION button to
CD position.
2. Open the lid (CD).
3. Turn on S801 with screwdriver, etc. as following figure.
4. Press the CD N X button.
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.
S801

5
CFD-S36
SECTION 2
GENERAL This section is extracted
from instruction manual.
REC PLAY REW FF STOP/EJECT PAUSE
VOLUME +,–
MEGA Xpand
MEGA BASS
ZPUSH
OPEN/CLOSE
CD
compartment
Number buttons for
CD/RADIO DIRECT OPERATION
Tape
compartment
POWER
SLEEP
N X x
CD
TAPE
RADIO BAND•
AUTO PRESET
Remote sensor
Display
OPR/BATT
indicator
MODE
i(headphones) jack
DISPLAY ENT•
MEMORY
TUNE –, +
.,>
Remote Control
Location of controls
SLEEP
FUNCTION
Number buttons
MODE
TUNE +,–
BAND
N
MEGA Xpand
POWER
VOL +,–
x
X
MEGA BASS
.,>
Tip
To listen through headphones, connect the headphones to the i(headphones) jack.
VOL
TUNE –
MEGA Xpand MEGA BASS
BAND TUNE +
POWER
789
MODE 0/10 > 10
1
FUNCTION SLEEP
CD/RADIO
(AC ONLY)
23
456

6
CFD-S36
• The equipment can be removed using the following procedure.
SECTION 3
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
3-1. CABINET (FRONT) SUB ASSY
Set Cabinet (Front) Sub Assy Wires
Tape Mechanism Block
Main Board
Belt,M801(Capstan/Reel Motor),
HRP301 (Head, Magnetic)
CD Mechanism Block
Holder Assy, Cassette
PRE Board
Optical Pick-up
Cabinet (Upper) Assy
Power (1) Board, Power (2) Board
1 lid, battery case
2 BVTP 3x12
5 BVTP 3x12
4 BVTP 3x12
6 BVTP 3x12
3 BVTP 3x12
lid (CD)
7 CNP323
8 CNP805
9 cabinet (front) sub assy

7
CFD-S36
3-2. WIRES
3-3. POWER (1) BOARD, POWER (2) BOARD
Put flat cable and wires between the cabinets and push them in the
grooves located at A to E in the figure to prevent disconnection
before assembling the set.
CABINET (REAR)
CABINET (FRONT
)
AB
E
from speaker
from MAIN board
from CONTROL (1) board
CD
1 BVTP 3x10
2 BVTP 3x10
5 CNP901
6 CNP902
4
7
POWER (1) board
POWER (2) board
3 BVTP 3x10

8
CFD-S36
3-5. MAIN BOARD
3-4. CABINET (UPPER) ASSY
1 BVTP 3x10
4 BVTP 3x12
6 BVTP 3x12
2 BVTP 3x12
3 holder assy, cassette
7 handle
8 cabinet (upper) ass
y
5 lid (CD)
cabinet (rear)
5 BVTP 3x10
6 BVTP 3x10
1 terminal, antenna
2 connector
(S801)
8 MAIN board
3 CNP702
4 CNP30
2
7 CNP301

9
CFD-S36
3-7. TAPE MECHANISM BLOCK
3-6. CD MECHANISM BLOCK
1 PWH 2.6x10
2 PWH 2.6x10
3 CD mechanism block
(KSM-213CDP)
1 BVTP 3x10
2 BVTP 3x10
3 tape mechanism bloc
k
(MF-V5-117)

10
CFD-S36
3-8. HOLDER ASSY, CASSETTE
3-9. PRE BOARD
1 BVTP 3x10
2 DAMPER
4 holder assy, cassette
3
1 BVTT 2x6
4 PRE board
claw
claw
2
3 Removal the solders.

11
CFD-S36
3-11. OPTICAL PICK-UP
3-10. BELT, M801 (CAPSTAN/REEL MOTOR), HRP301 (HEAD, MAGNETIC)
mechanism deck
1 screws
B 2.6 × 5
4 M801
(capstan/reel motor
)
2
3 belt
5 claws
6 HRP301 (head, magnetic)
1 claws
4 claw
5 gear (A)
2 claws
6 claw
7
8
sled shaft
9 optical pick-up
3 cover, CD

12
CFD-S36
i
j
ack
(
J321
)
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. The adjustments should be performed with the rated power
supply voltage (9V) unless otherwise noted.
Torque Measurement
Mode Torque meter Meter reading
2.95 – 6.86 mN • m
FWD CQ-102C (30 – 70 g • cm)
(0.42 – 0.97 oz • inch)
FWD 0.15 – 0.53 mN • m
Back Tension CQ-102C (1.5 – 5.5 g • cm)
(0.021 – 0.076 oz • inch)
more than 5.88 mN • m
FF CQ-201B (more than 60 g • cm)
(more than 0.83 oz • inch)
more than 5.88 mN • m
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
2,940 to 3,060 Hz
Adjust so that the frequency at the beginning and that at the end of
tape winding are between 2,970 to 3,030 Hz.
Adjustment Location:
Tape speed adjustment
control inside motor

13
CFD-S36
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T2
10.7 MHz
FM FREQUENCY COVERAGE
ADJUSTMENT
Frequency Display 87.5 MHz 108 MHz
Reading on Digital voltmeter 1.3 ± 0.3 V 3.0 ± 0.2 V
Adjustment Part <confirmation> L2
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1 CT1
87.5 MHz 108 MHz
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
450 kHz
AM FREQUENCY COVERAGE
ADJUSTMENT
Frequency Display 530 kHz 1,710 kHz
Reading on Digital voltmeter 1.0 ± 0.1 V 5.3 ± 0.7 V
Adjustment Part L4 <confirmation>
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3 CT3
620 kHz 1,400 kHz
digital
voltmeter
100 kΩ
TP (VT)
ijack (J321)
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 (JW2)
FM RF signal
generator
0.01 µF
set
TUNER SECTION 0 dB = 1 µV
•FM Section
Setting:
RADIO (BAND) button: FM
75 kHz frequency
deviation by 1 kHz signal
output level : as low as possible
•AM Section
Setting:
RADIO (BAND) button: AM
30% amplitude
modulation by
400 Hz signal
•Connecting Level Meter (FM and AM)
•Connecting Digital Voltmeter (FM and AM)
•Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
Adjustment Location: See page 14.

14
CFD-S36
TP
(RF)
TP
(VREF)
TP
(RF)
TP
(VREF)
– CD board (conductor side) –
TP
(FE)
TP(TE)
TY TX
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 4and pin qa (or
TP (RF) and TP (VREF).
2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)
3. Press the CD NXbutton.
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)
Test Point:
RF level :
0.85 ±0.2 Vp-p
VOLT/DIV : 50 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.
L4
TP (VT)
CT1
CT3 L1
L2
T2
TP (JW2)
T1
L3
– MAIN board (component side) –
TP (JW2)
L4
AM
FREQUENCY
COVERAGE
ADJUSTMENT
L2
FM
FREQUENCY
COVERAGE
ADJUSTMENT
CT3, L3
AM
TRACKING
ADJUSTMENT
CT1, L1
FM
TRACKING
ADJUSTMENT
T1
AM
IF
ADJUSTMEN
T
T2
FM
IF
ADJUSTMENT

CFD-S36
15 15
6-1. IC PIN DESCRIPTION
• IC802 uPD789477-907 (SYSTEM CONTROLLER)
Pin No. Pin Name I/O Pin Description
1, 2 NC — Not used. (Open)
3 – 5 VLC2 – 0 O LCD drive voltage output
6 – 9 COM0 – 3 O LCD drive common output
10 – 26 S0 – 16 O LCD drive segment output
27 – 29 S17 – 19 O LCD drive segment output Not used. (Open)
30 BL-CONT — Not used. (Open)
31 A-MUTE O Audio mute output H: Mute
32 WB/FM.AM.TV O Tuner output level attenuator switch Not used. (Open)
33 DBB O MEGA BASS control output H: MEGA BASS off, L: MEGA BASS on
34 P-CON O System power control output H: PCON
35 AC-CHK I AC power supply detection signal input “L”: AC in
36 CD O CD function output H: CD
37 TAPE O Tape function output H: Tape
38 AVDD — Analog power supply pin for A/D converter (+3.3 V)
39 BTT-CHK-H I Battery check input for Hi-voltage
40 BTT-CHK-M I Battery check input for Mid-voltage
41 REC I Tape record signal input H: REC
42 – 45 KEY1 – 4 I Key input
46 MODE CHK I Mode set input
47 AGND — Analog GND for A/D converter
48 REMOTE I Sircs receiver data input
49 TC-PLAY I Tape play switch input L: Tape
50 WP/INI O Initial set signal output
51 CD-DOOR I CD door open/close switch input L: Close
52 C-WRQ I CD command data input
53 C-DOUT I CD sireal data input
54 C-DIN O CD sireal data output
55 C-CLK I Serial data transfer clock signal input
56 R-COUNT I Tuner PLL data input
57 R-DATA O Tuner PLL data output
58 R-CLK O Tuner PLL clock output
59 R-LAT O Tuner PLL latch output
60 B-MUTE O Tuner mute signal output H: Mute
61 C-DRF I CD DRF signal input
62 C-CE O CD SENSE read clock output
63 C-FSEQ I CD frame SYNC input
64 C-XRT O CD system reset output
65 V-LAT O Volume latch output Not used. (Open)
66 V-DATA O Volume data output
67 V-CLK O Volume clock output
68 SUR O Surround switch signal output
69 ICO — Connected to GND
70 XT1 I Sub system oscillation input (32.768 kHz)
71 XT2 O Sub system oscillation output (32.768 kHz)
72 VDD — Main power supply pin for A/D converter (+3.3 V)
73 VSS — Main GND
74 X1 I Main system oscillation input (4.19 MHz)
Pin No. Pin Name I/O Pin Description
75 X2 O Main system oscillation output (4.19 MHz)
76 RST I System reset input
77 ISS1 O ISS1 output Not used. (Open)
78 ISS2 O ISS2 output Not used. (Open)
79 SCL O EEPROM clock output
80 SDA I/O EEPROM input/output
6-2. CIRCUIT BOARDS LOCATION
SECTION 6
DIAGRAMS
CONTROL (1) board
CONTROL (2) board
CONTROL (3) board
CD board
BATTERY TERMINAL (2) board
BATTERY TERMINAL (1) board
MAIN board
PRE board
POWER (1) board
POWER (2) board

CFD-S36
1616
6-3. BLOCK DIAGRAM —CD SECTION —
A
C
B
E
F
D
A
C
B
D
LD
PD
E
T+
T–
F+
F–
SL+
SL–
SP+
SP–
F
VREF
LD
PD
LD POWER
CONTROLLER
Q701 APC
FIN2
FIN1
LDD
LDS
TIN1
TE
TIN2
VREF
12
CNP701
10
11
13
7
5
14
16
9
3
2
4
1
RF
9
10
11
80
7
79
48
9
12
11
TRACKING
COIL
DRIVE
19
7
FOCUS
COIL
DRIVE
TIN
FIN
25
SLIN
SLED
MOTOR
DRIVE
3
SPINDLE
MOTOR
DRIVE
SPIN
VREF
OPIN
MUTE
T+
T–
17
18
F+
F–
26
27
SL+
SL–
2
1
SP+
SP–
TRACKING
COIL
FOCUS
COIL
OPTICAL PICK-UP
BLOCK
(KSS-213C)
M
M
M702
SLED
MOTOR
M701
SPINDLE
MOTOR
SLED/SPINDLE
MOTOR DRIVER,
TRACKING/FOCUS
COIL DRIVER
IC702
S701
(LIMIT)
EFMIN
HFL
AGC
PH(RFENV)
FE
TE
VREF
CONT1 FSEQ CONT4 DRF RES DI CE CL WRQ DO XOUT XIN
LCHO
RCHO
1
3
67
TDDTD
FD
SP
SL
31 72 25 66 63 61 62 49 4865 64
42
45
RF AMP,
SYSTEM SERVO PROCESSOR,
DIGITAL SIGNAL PROCESSOR
IC701
39
51
61 63 54 62 55 52 5364
X701
33.86MHz
C-CE
C-DIN
C-CLK
C-WRQ
C-XRT
C-DRF
C-FSEQ
C-DOUT
CD DOOR
CD
BTT-CHK-H
34
P-CON
35
AC-CHK
SYSTEM CONTROLLER
IC802 (1/2)
CD +6V
SWITCH
Q817,818
BATTERY
CHECK
Q804,806
POWER
CONTROLLER
Q819,D802
AUDIO+6V
REG
Q955,D953
+3.3V REG
IC801
POWER
SWITCH
Q952,953
POWER
SWITCH
Q951
CD +3.3V
REG
Q957
CD 3.3V
CD 6V
CD
KH803
2
1
S801
PUSH
OPEN/
CLOSE
1 1
43 10 9 87 6
22
33
1
3
1
3
CNP902
BATT.COM
AC-HI
VDD
KH321
Q801
3.3V
VDD(SW)
RADIO 6V
CNP903(1/2)
CNP903(2/2)
CNP901
BATTERY
TERMINAL(1)
BOARD
41
2
D901 - 904 F902
T901
POWER
TRANSFORMER
CNJ901
AC IN
CNP904
CD BOARD MAIN BOARD (1/2)
POWER (1)
BOARD
POWER (2)
BOARD
BATTERY
TERMINAL(2)
BOARD
Signal path
: CD
R-ch : same as L-ch.
CLV,CAV
CONTROL
PLL
VCEC
SWITCH
ERROR
CORRECTION
AUDIO CD
A/D
CONVERTER,
SERVO
PROCESSOR
FRAME SYNC
DETECT,PROTECT
INSERT
EFM DECODER
INTERPOLATION
MUTE
&
ATTENUATION
DEEMPHASIS
8FS
DIGITAL
FILTER
&
1-bit DAC
LPF
SLICE
LEVEL
CONTROL
GENERAL
PURPOSE
PORT
COMMAND
INTERFACE
CLOCK
GENERATOR
23
15
11 12 5 6 7 8 9 10
CNP804(1/2)
DRF
FSEQ
XRT
DIN
CE CL
WRQ
DOUT
5
FD
SL
SP
TD
VREF
CNP702(1/2)
VREF
VREF
CNP702(2/2) CNP804(2/2)
CD R
CNP806(1/3)
12 33
CD_IN_ L
DRY BATTERY
SIZE " D "
(IEC DESIGNATION R20)
6PCS,9V
4.5V
4.5V
D/A
CONVERTER
PH/BH
40
BTT-CHK-M
20
FDD SPDO SLDO
21 22 23
1
2
1
2
KH903 KH905
23
2
D952
D951
D955

CFD-S36
17 17
6-4. BLOCK DIAGRAM —MAIN SECTION —
1
2
CD_IN_L
5
21 22 16
4
CNP301(1/3)
L-CH
R-CH
HRP301
RECORD/PLAYBACK
HEAD
HE301
ERASE HEAD
DET
ALC 2
RADIO L
18
15
L.LO
CNP301
(3/3)
R.LO
LINE
TAPE
R-CH
CD
TU_IN_R
TU_IN_L
TAPE
VIN2
CNP806
(3/3)
VOUT2
LOGIC
CONTROL
5
CLOCK
4
DATA
VOLUME/SOUND CONTROLLER
IC302
POWER AMP
IC304
D322
R-CH
SP301
SPEAKER
(L-CH)
SP302
SPEAKER
(R-CH)
J321
REF
L.LINE
L.RO
REC L.RAD
R.RAD
T301
REC BIAS OSC
Q301
REC
41
TAPE
37
V-CLK
V-DATA
SUR
CD
CD
10–266 –9 5759 58 56
LIQUID CRYSTAL
DISPLAY PANEL
LCD801
SYSTEM CONTROLLER
IC802 (2/2)
676836 66
60
DBB
33
COM0
|
COM3
S0
|
S16
EEPROM
IC803
R-LAT SCL SAD R-CLK R-DATA R-COUNT
76
RST B-MUTE
46
MODE CHK
50
WP/INI
74
X1
75
X2
TUNER
X802
4.19MHz
RESET
IC804
70
XT1
71
XT2
X801
32.768kHz
3.3V
Q814 Q813 Q812,D807 5432
VOL
D451
OPR/BATT
48
REMOTE KEY1
42
KEY2
43
KEY3
44
KEY4
45
Signal path
: FM
: AM
: TAPE PLAY
: TAPE REC
: CD
R-ch : same as L-ch.
PRE BOARD
REC/PB
PRE AMP
IC301
MAIN BOARD (2/2)
11 5
MEGA
BASS
CONTROLLER
Q122
58
5
7
7
81
81
20
6
14 R.LINE
8R.IN
L.IN
9R.RO
i
CNP301(2/3)
CNP806(2/3)
A-MUTE
31
MUTE
Q124
LEVEL
DETECT
D323
LINE
AMP
Q125
TC-PLAY
49
M
TAPE
SWITCH
Q808
REMOTE
CONROLLER
IC401
MOTOR
SWITCH
Q807
1
2
24
-1
6V
REC
-2
S301
(REC/PB)
REC
PB
CNP302
CNP323
VDD(SW)
VDD(SW)
CNP805
CNP401
KH402
CNP404 KH405
KH403
KEY4
KEY2
KEY3
KEY1
1
2
3
3
4
1
2
4
S802
(TAPE PLAY)
M801
CAPSTAN/REEL
MOTOR
17
7
CD_IN_R
3
911
911
D803
S411,412S407-409
S420-427
S413-419
S401-406
65
7980
6 8
5432 6 8
41 2
41 2
12
12
CONTROL (1)
BOARD
CONTROL (3)
BOARD
CONTROL (2)
BOARD
SURROUND
SWITCH
Q301
2
AUDIO 6V
18
11 12 20 19
AM IN FM IN XOUT XIN
13
MO/ST
10
IF IN
LPF2/MO-ST
LPF1/BAND
ST-IND
OSC-OUT
7
BAND
8
ST-IND
LP-OUT
AM
OSC
AM
MIX
FM
MIX
FM
OSC
AM
RF-IN
FM
RF-IN
FM
RF-OUT
X1
75kHz
PLL
IC2
14 17 13 18
16 15 11
12
1920
22 4 6
7
10
2
2124
T1
CF4
L2L1 CT1
RADIO6V
RADIO 6V
D1 D2
CT3
D3
L3
AM
FERRITE-ROD
ANTENNA
CT3,L3
AM
TRACKING
CT1,L1
FM
TRACKING
ANT1
FM
TELESCOPIC
ANTENNA
IF
BUFFER
AM
DET
FM
DET
IF CUT
AF
BUFFER
FM
MPX MUTE
IF CUT
R-OUT
L-OUT R-CH
RADIO 6V
QUAD
FM/AM FRONT-END, IF DET,
FM STEREO DEMODULATOR
IC1
AM
FREQUENCY
COVERAGE
L4
RADIO 6V
L4
CF2
RADIO 6VRADIO 6V
RADIO 6V
RADIO 6V
FM OSC
AM OSC
MIX-OUT AM
IF-IN
FM
IF-IN
IF-OUT
DET-OUT MPX-IN
T2 T2
FM IF
L2
FM
FREQUENCY
COVERAGE
VDD(SW)
1 2 3 4
T1
AM IF
D324

CFD-S36
1818
6-5. PRINTED WIRING BOARD —CD SECTION —•Refer to page 15 for Circuit Boards Location.
1
A
B
C
D
E
F
G
H
I
J
2345678910
TP
(RF)
TP
(FE)
TP(TE)
TP
(L-CH)
TP
(R-CH)
TP
(VREF)
1
1-680-943-
MAIN
BOARD
CNP804
FY
TY
FX
TX
IC701 D-5
IC702 I-4
Q701 G-7
•Semiconductor
Location
Ref. No. Location
(Page 20)
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
Common Note on Schematic Diagrams:
• 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.
•f: internal component.
•C: panel designation.
•A: B+ Line.
•H: adjustment for repair.
• Total current is measured with no cassette installed.
• Power voltage is dc 9V and fed with regulated dc power
supply from battery terminal.
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F: FM
f: AM
E: PB
a: REC
J: CD
Note: The components identified by mark 0or dotted line
with mark 0are critical for safety.
Replace only with part number specified.
Common Note on Printed Wiring Boards:
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•f: internal component.
•: Pattern from the side which enables seeing.

CFD-S36
19 19
6-6. SCHEMATIC DIAGRAM —CD SECTION —•Refer to page 18 for Common Note on Schematic Diagrams and page 29 for IC Block Diagrams.
IC B/D
IC B/D
•Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : CD PLAY
1
IC701 4(RF)
500mV/div 0.5µsec/div 2
IC701 qd (FE)
100mV/div 20µsec/div 3
IC701 qg (TE)
100mV/div 20µsec/div 4
IC701 rk (XOUT)
1V/div 0.05µsec/div
0.85±0.2Vp-p
Approx. 100mVp-p Approx. 100mVp-p
1.8V 1.8V 3.2Vp-p
•Waveforms (Mode: PLAY)
33.86MHz
(Page 22)

CFD-S36
2020
1
A
B
C
D
E
F
G
H
I
J
234567891011
13 14
L-CH
R-CH
1
CD BOARD
CNP702
2
CONTROL (1) BOARD
CNP401
S801
Z PUSH OPEN/CLOSE
L3
AM
FERRITE-ROD
ANTENNA
3POWER (1) BOARD
CNP902
ANT1
FM
TELESCOPIC
ANTENNA
MAIN BOARD
LCD801
LIQUID CRYSTAL DISPLAY PANEL
1-679-963-
1-679-592-
TP
(VT)
6-7. PRINTED WIRING BOARDS —MAIN SECTION —•Refer to page 15 for Circuit Boards Location and page 18 for Common Note on Printed Wiring Boards.
D1 D-3
D2 D-4
D3 D-4
D10 B-2
D11 B-2
D322 H-9
D323 G-10
D324 C-9
D801 F-6
D802 H-9
D803 C-9
D804 E-6
D806 G-8
D807 G-9
D951 D-10
D952 E-9
D953 E-10
D955 E-9
D957 E-9
IC1 C-3
IC2 C-5
(IC301) H-3
IC302 F-9
IC304 F-11
IC801 F-6
IC802 H-7
IC803 F-5
IC804 G-5
Q122 G-9
Q124 F-10
Q125 F-8
Q222 F-9
Q224 F-10
Q225 E-8
Q301 F-9
(Q301) G-2
Q801 H-9
Q804 G-9
Q806 H-9
Q807 C-11
Q808 C-9
Q812 G-8
Q813 G-8
Q814 C-6
Q817 E-9
Q818 E-8
Q819 H-9
Q951 D-11
Q952 D-10
Q953 D-10
Q955 E-9
Q957 E-8
•Semiconductor
Location
Ref. No. Location
(Page 18)
(Page 25)
(Page 27)
( ) : PRE BOARD