Sony Cfd 8 Service Manual

							CFD-V8
SERVICE MANUAL
CD RADIO CASSETTE-CORDER
SPECIFICATIONS
Canadian ModelAEP ModelUK Model E Model
A ustralian Model
Model Name Using CD Section CFD-V7
Similar Mechanism Tape Section CFD-V7
CD Mechanism Type (Former Type/New Type) KSM-213RDP/KSM-213CDP
Optical Pick-up Type (Former Type/New Type) KSS-213R/KSS-213C
Tape Transport Mechanism Type MF-V5-117
– Continued on page 2 –
V er 1.3  2004.09
9-961-329-04
2004I02-1
©  2004.09
Sony Corporation
Pe rsonal Audio Company
Published by Sony Engineering Corporation
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
W ow and flutter
Below measurable limit
Radio section
Frequency range FM:  87.6 - 107.0 MHz or 87.6 - 108.0 MHz
AM: 531 - 1602 kHz or 530 - 1 710 kHz
Antenna FM: Telescopic antenna
AM: Built-in ferrite bar antenna Cassette-corder section
Recording system
4-track 2 channel stereo
Fast winding time Approx. 120 s (sec.) with Sony cassette C-60
Frequency response TYPE I (normal): 80 - 10 000 Hz
General
Speaker Full range: 10 cm dia., 3.2  Ω, cone type (2)
Outputs Headphones jack (stereo minijack)
For 16 - 68  Ω impedance headphones
Power output 1.8 W + 1.8 W (at 3.2  Ω, 10 % harmonic distortion in AC
operation)
Power requirements For CD radio cassette-corder: 120V AC, 60Hz (CND, TW) 220V AC, 60Hz (KR)
230V AC,  60Hz(AEP, UK, AUS, CET, IT, SP)
9 V DC, 6 size D (R20) batteries
Power consumption AC 20 W 
						

							2
CFD-V8
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK  0 OR DOTTED LINE WITH
MARK  0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PA RT  NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
T ABLE OF CONTENTS
Specifications ........................................................................\
....... 1
1. SERVICING NOTES...................................................... 3
2. GENERAL
Location and Function of Controls ....................................... 4
3. DISASSEMBLY
3-1.   Cabinet (Front) Sub ASSY, Cabinet (Rear) ................. 5
3-2.   Control Board .............................................................. 5
3-3.   Cabinet (upper) ............................................................ 6
3-4.   Power Board, Inlet Board, BATT (R) Board,
         BATT (L) Board ........................................................... 6
3-5.   Volume Board, FM SW Board, Main Board ............... 7
3-6.   PRE Board, Mechanism Deck,
         Optical Pick-up Section, CD Board ............................. 7
3-7.   Belt, M601 (Capstan / Reel Motor),
         “HRP901 Head, Magnetic (Record/Playback)”,
         HE901 Head (Erase) .................................................... 8
3-8.   Optical Pick-up (KSS-213C) ....................................... 8
4. DIAL POINTER INSTALLATION.............................. 9
5. ADJUSTMENTS
5-1.   Mechanical Adjustments ............................................ 10
5-2.   Electrical Adjustments ............................................... 10
6. DIAGRAMS
6-1.   IC Pin Function Descrintion ...................................... 13
6-2.   Block Diagrams – Tuner/TC Section – ..................... 15
6-3.   Block Diagrams – Main Section – ............................. 16
6-4.   Block Diagrams – CD Section – ................................ 17
6-5.   Printed Wiring Boards – Main Section – ................... 18
6-6.   Schematic Diagrams – Main Section (1/3) – ............. 19
6-7.   Schematic Diagrams – Main Section (2/3) – ............. 20
6-8.   Schematic Diagrams – Main Section (3/3) – ............. 21
6-9. Printed Wiring Boards – Control/Power Section – ...... 22
6-10. Printed Wiring Boards – Control/Power Section – .... 23
6-11. Schematic Diagrams – CD Section – ......................... 24
6-12. Printed Wiring Boards – CD Section – ...................... 25
7. EXPLODED VIEWS
7-1.   Front Cabinet Section ................................................ 30
7-2.   Rear Cabinet Section ................................................. 31
7-3.   Upper Cabinet Section ............................................... 32
7-4.   Mechanism Deck Section (1) .................................... 33
7-5.   Mechanism Deck Section (2) .................................... 34
7-6.   CD Block Section ...................................................... 35
8. ELECTRICAL PARTS LIST...................................... 36
T
his Compact Disc player is classified as a CLASS 1 LASER
product.
T he CLASS 1 LASER PRODUCT label is located at the bottom
of the player. Information
F or customers in Europe
CAUTION
Use of controls or adjustments or performance
of procedures other than those specified herein
may result in hazardous radiation exposure.
Battery life
For CD radio cassette-corder:
FM recording
Sony R20P: approx. 13.5 h
Sony alkaline LR20: approx. 20 h
Ta pe 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 x 165 x 256 mm (w/h/d)
(16 
5⁄8 x 6 1⁄2 x 10 1⁄8 inches) (incl. projecting parts)
Mass Approx. 4.1 kg (9 lb. 1 oz) (incl. batteries)
Supplied accessory AC power cord (1)
Design and specifications are subject to change without notice.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE  0 SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS
Q UE PAR DES PIÈSES SONY DONT LES NUMÉROS SONT
DONNÉS DANS CE MANUEL OU DANS LES SUPPÉMENTS
PUBLIÉS PAR SONY.
V er 1.2
• Abbreviation
CND : Canadian
CET : East European & Russian
IT : Italian
SP : Singapore
AUS : Australian
TW : Taiwan
KR : Korean 
						

							3
CFD-V8
 NOTES ON HANDLING THE OPTICAL PICK-UP
 BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electro-
static 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 more than 30 cm away from the  objective
lens.
 CHUCK PLATE JIG ON REPAIRING
On repairing CD section, playing a disc without the CD lid, 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. Press CD open knob.
2. Open the lid for CD.
3. Push on SWITCH (S801) as following figure.
4. 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 once for the focus
search.
Insert a precision 
screw driver and push  
SWITCH (S801)
r  UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the
lead-free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed
with the lead free mark due to their particular size.)
 : LEAD FREE MARK
Unleaded solder has the following characteristics.
•Unleaded solder melts at a temperature about 40°C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to
be applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set
to about 350°C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
•Strong viscosity
Unleaded solder is more viscous (sticky, less prone to
flow) than ordinary solder so use caution not to let solder
bridges occur such as on IC pins, etc.
•Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder
may also be added to ordinary solder. 
						

							4
CFD-V8
SECTION 2
GENERAL
LOCATION AND FUNCTION OF CONTROLS
This section is extracted from
instruction manual.
Loading a CD
With the labeled side up
Inserting a cassette
With the side you want to
play facing upwardZ PUSH OPEN/CLOSE
VOLUME
TUNING PLAY MODE
ENTER
iFUNCTION.,>u
MEGA BASS
x FM MODE (rear)
Display
Total track number
C
Track number
D
Programd track
E
OPR/BATT 
						

							5
CFD-V8
SECTION 3
DISASSEMBLY
Note :  Follow the disassembly procedure in the numerical order given.
3-1. CABINET (FRONT) SUB ASSY, CABINET (REAR)
3-2. CONTROL BOARD
z The equipment can be removed using the following procedure.
Cabinet (front)  sub ASSY
Control board
Optical pick-up (KSS-213C)
Cabinet (rear)  Cabinet (upper) 
Set
Volume board, 
FM SW board, Main board
PRE board, Mechanism deck,
Optical pick-up section, CD board
Belt, M601 (capstan/reel motor),
“HRP901 Head, Magnetic (Record/playback)”,
HE901 Head (Erase)
Power board, Inlet board, 
BATT (R) board, BATT (L) board
cabinet (front) sub assy
cabinet (rear) 
lid, battery case
3 three screws +BVTP 3 × 12
6 open the Lid (CD)
2 three screws +BVTP 3 × 12
4 screw
    +BVTP 3 × 12
7 screw
    +BVTP 3 × 12
0 flat cable (16core) (CN801)
5
9 1
8
 knob (vol )
cabinet (front) sub assy
CONTROL board
1 three screws
    +BVTP 2.6 × 8
2 two screws
    +BVTP 2.6 × 8
3 
						

							6
CFD-V8
3-3. CABINET (UPPER)
89
6
 two screws +BVTP 3 × 10
5 screw +BVTP 3 × 121 three screws
    +BVTP 3 × 12
4 screw
    +BVTP 3 × 12
remove the handle in the direction of the arrow.
2 open the cassette holder assy by
     pressing STOP/EJECT button.
3 open the Lid (CD)
cabinet (rear)
cabinet (upper)STOP/EJECTbutton
7 CNP902
    (POWER board)
3-4. POWER BOARD, INLET BOARD, BATT (R) BOARD, BATT (L) BOARD
2 two screws
     +BVTP 3 × 10
1 four screws
    +BVTP 3 × 10
INLET board
POWER board
cabinet (rear)
BATT (R) board
CNP907
BATT (L) board
5 two screws 
     +WH 3 × 8
6 CNP908
4 CNP907
3
a
a
8
7 
						

							7
CFD-V8
3-6. PRE BOARD, MECHANISM DECK, OPTICAL PICK-UP SECTION, CD BOARD
0 three screws
     +BVTP 3 × 10
5screw
     +BVTP 3 × 10
MAIN board
2remove solder
    (five places) FM SW board
6 KH801
S801
7 wire, parallel (CN802)(15 core)
4 remove solder(four places)
VOLUME board cabinet(upper)
1 two screws
     +BVTP 3 × 10
3 qa
9wire, parallel (CNP303)(10 core) 
8CNP304
3-5. VOLUME BOARD, FM SW BOARD, MAIN BOARD
optical pick-up section
CD board
mechanism deck
PRE board
1 screw 
     +BVTP 3 × 10
5 remove solder
    (four places)
1 two screws +BVTP 3 × 10
3 screw +BVTT 2 × 6
6 two screws +PWH 2.6 × 10
6 two screws
     +PWH 2.6 × 10
9 screw
     +BVTT 2 × 6qa wire, parallel (CNP701)(16 core)
8 remove solder (four places)
7
2
0
4
cabinet(upper) 
						

							8
CFD-V8
3-7. BELT, M601 (CAPSTAN / REEL MOTOR), “ HRP901 HEAD, MAGNETIC (RECORD/PLAYBACK) ”,HE901 HEAD (ERASE)
mechanism deck
HE901 head (erase)
HRP901 head, magnetic (record/ playback)
1 two screws 
     +B 2.6 × 5
7 claws
5 claws
4 M601
(capstan/reel motor)
2
3 belt
8
6
3-8. OPTICAL PICK-UP (KSS-213C)
4 1
2
5
3 bend the stopper
chassis ASSY, motor (spindle)
shaft, sled
claws
clawclaw
claw
cover, CD
gear
optical pick-up (KSS-213C) 
						

							9
CFD-V8
SECTION 4
DIAL POINTER INSTALLATION
Note : Follow the installation procedure in the numerical order given.
1 Align the pointer with the groove of “cabinet (front) sub ASSY” and insert it as shown in the illustration.
2 Align knob (TU) with “cabinet (front) sub ASSY” and fasten the screw.
3 Turn the tuning knob fully in the direction of the allow as shown in the illustration.
4 Turn the tuning capacitor gear fully in the direction of the allow as shown in the illustration.
5 Fasten the “cabinet (front) sub ASSY” and cabinet (rear) with the screws.
1 Pointer
knob (Tu) Cabinet (front) sub ASSY 
2 Screw (+BVTP 2.6 × 8)
3 Tuning knob
4 Tuning capacitor gear
5
Cabinet (rear)
Cabinet (front) sub ASSY 
						

							10
CFD-V8
5-1. 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.)
3. Do not use a magnetized screwdriver for the adjustments.
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)
Forward0.1 – 0.49 mN•m
Back TensionCQ-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-403Amore than 60g
(more than 2.12 oz)
 TUNER SECTION
 AM Section
Function switch : AM
Volume : MIN
 FM Section
Function switch : FM
Volume : MIN
AM  RF signal
generator
30% amplitude modulation by 400Hz
signal.
Output level : as low as possiblePut the lead-wire
antenna close to 
the set.
FM RF signal
generator
22.5kHz frequency deviation by 
1kHz signal.
Output level : as low as possibletelescopi
cantenna
terminal 0.01µF
set32Ω
J301 (phones)level mete
r
SECTION 5
ADJUSTMENTS
5-2. ELECTRICAL ADJUSTMENTS
 TAPE RECORDER SECTION
Standard Output Level
Output terminal HP OUT
load impedance 32 Ω
output signal level 0.25V (–10dB)
Test Tape
TypeSignal Used for
WS-48A 3kHz, 0dB Tape Speed Adjustment
Tape Speed Adjustment
Procedure :
Mode : Playback
Adjustment Value : 3,000Hz
Standard Value : 2,940 - 3,060Hz
Frequency difference between the beginning and the end of the tape
should be within 1.5% (45Hz).
set
test tape
WS-48A
(3kHz, 0dB)
32Ωdigital frequencycounter
J301 (phones)
Tape speed adjustment 
control inside motor
 0dB = 0.775VAdjustment Location : Mechanism deck
 0dB = 1 µV