CFD-V3, CFD-V7, CFD-V7L - Sony Audio Service Manual (repair manual)

Model
CFD-V3 CFD-V7 CFD-V7L
Pages
48
Size
5.37 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cfd-v3-cfd-v7-cfd-v7l.pdf
Date

View Sony CFD-V3 / CFD-V7 / CFD-V7L Service Manual online

CFD-V3/V7/V7L
SERVICE MANUAL
CD RADIO CASSETTE-CORDER
SPECIFICATIONS
Canadian Model
UK Model
Australian Model
CFD-V7
AEP Model
CFD-V3/V7/V7L
E Model
CFD-V3/V7
Model Name Using
CD Section
CFD-S36
Similar Mechanism
Tape Section
CFD-S36
CD Mechanism Type
KSM-213CDP
Optical Pick-up Type
KSS-213C
Tape Transport Mechanism Type
MF-V5-117
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 
µ
W
(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
CFD-V3/V7
FM
Italy
87.5 - 108 MHz
European countries
87.6 - 107 MHz
Other countries
87.6 - 108 MHz
AM
Italy
526.5 - 1 606.5 kHz
European countries
531 - 1 602 kHz
Other countries
530 - 1 710 kHz
CFD-V7L
FM
87.6 - 107 MHz
LW
153 - 279 kHz
IF
FM: 10.7 MHz
AM/LW: 455 kHz
Aerials
FM: Telescopic aerial
AM/LW: Built-in ferrite bar aerial
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
– Continued on page 2 –
Ver 1.5  2003.12
With SUPPLEMENT-1
Photo : CFD–V7
9-873-079-16
2003L02-1
© 2003.12
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation
2
CFD-V3/V7/V7L
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
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
TABLE 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.   Explanation of IC Terminals ...................................... 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 –
                                                       (Last digit :-11) ............ 18
6-6.   Schematic Diagrams – Main Section (1/3) –
                                                       (Last digit :-11) ............ 19
6-7.   Schematic Diagrams – Main Section (2/3) –
                                                               (Last digit :-11) ............ 20
6-8.   Schematic Diagrams – Main Section (3/3) –
                                                                (Last digit :-11) ........... 21
6-9.   Printed Wiring Boards – Main Section –
                                                       (Last digit :-12) ............ 22
6-10. Schematic Diagrams – Main Section (1/3) –
                                                       (Last digit :-12) ............ 23
6-11. Schematic Diagrams – Main Section (2/3) –
                                                               (Last digit :-12) ............ 24
6-12. Schematic Diagrams – Main Section (3/3) –
                                                                (Last digit :-12) ........... 25
6-13. Printed Wiring Boards – Control/Power Section –
                                                          (Except V7 :E4 model) ..... 26
6-13. Printed Wiring Boards – Control/Power Section –
                                                          (V7 :E4 model) ................. 27
6-15. Schematic Diagrams – Control/Power Section – ...... 28
6-16. Schematic Diagrams – CD Section – ........................ 29
6-17. Printed Wiring Boards – CD Section – ...................... 30
7. EXPLODED VIEWS
7-1.   Front Cabinet Section ................................................ 34
7-2.   Rear Cabinet Section ................................................. 35
7-3.   Upper Cabinet Section ............................................... 36
7-4.   Mechanism Deck Section (1) .................................... 37
7-5.   Mechanism Deck Section (2) .................................... 38
7-6.   CD Block Section ...................................................... 39
8. ELECTRICAL PARTS LIST
...................................... 40
General
Speaker
Full range: 10 cm dia., 3.2 
Ω, cone type (2)
Outputs
Headphones jack (stereo minijack)
For 16 - 68 
Ω impedance headphones
Maximum power output
3.6 W
Power requirements
For CD radio cassette-corder:
120 V AC, 60 Hz (Canadian, E4 model)
230 V AC, 50 Hz (Except Canadian model)
110-120V AC/220-240V AC
50/60Hz changeable (E4 model)
9 V DC, 6 R20 (size D) batteries
Power consumption
AC 20 W
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 
× 165 × 256 mm (w/h/d)
(16 
5
8
 
× 6 
1
2
 
× 10 
1
8
 inches) (incl. projecting parts)
Mass
Approx. 4.1 kg (9 lb. 1 oz) (incl. batteries)
Supplied accessory
Mains lead (1)
Design and specifications are subject to change without notice.
ATTENTION AU COMPOSANT AYANT RAPPORT
 À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR
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.
This Compact Disc player is classified as a CLASS 1 LASER
product.
The CLASS 1 LASER PRODUCT label is located at the bottom
of the player.
Information
For customers in Europe
Ver 1.4   2003.06
CAUTION
Use of controls or adjustments or performance
of procedures other than those specified herein
may result in hazardous radiation exposure.
3
CFD-V3/V7/V7L
 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)
4
CFD-V3/V7/V7L
SECTION 2
GENERAL
LOCATION AND FUNCTION OF CONTROLS
This section is extracted from
instruction manual.
* FM MODE•ISS for CFD-V7L
REC PLAY REW
FF STOP/EJECT PAUSE
c
Loading a CD
With the labeled side up
Inserting a cassette
With the side you want to
play facing upward
Z PUSH OPEN/CLOSE
VOLUME
TUNING
PLAY MODE
ENTER
i
FUNCTION
.,>
u
MEGA BASS
x
FM MODE (rear)
Display
Total track number
C
Track number
D
Programmed track
E
OPR/BATT
5
CFD-V3/V7/V7L
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
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
 Screws 
+BVTP 3 
×
 12
6
 Open the Lid (CD)
2
 Screws 
+BVTP 3 
×
 12
4
 Screw
    +BVTP 3 
×
 12
7
 Screw
    +BVTP 3 
×
 12
5
9
1
8
 Knob (vol )
Cabinet (front) sub assy
CONTROL board
1
 Screws
    +BVTP 2.6 
×
 8
2
 Screws
    +BVTP 2.6 
×
 8
3
Ver 1.1   2001.04
6
CFD-V3/V7/V7L
3-3. CABINET (UPPER)
8
9
6
 Screw +BVTP 3 
×
 10
5
 Screw +BVTP 3 
×
 12
1
 Screws
    +BVTP 3 
×
 12
4
 Screw
    +BVTP 3 
×
 12
Remove the handle in
the direction of the arrow.
2
 Open the Holder assy, cassette by
     pressing STOP/EJECT button.
3
 Open the Lid (CD)
Cabinet (rear)
Cabinet (upper)
STOP/EJECT
button
7
 CNP902
    (POWER board)
3-4. POWER BOARD, INLET BOARD, BATT (R) BOARD, BATT (L) BOARD
2
 Screws
     +BVTP 3 
×
 10
1
 Screws
    +BVTP 3 
×
 10
INLET board
POWER board
Cabinet (rear)
BATT (R) board
CNP907
BATT (L) board
5
 Screws 
     +WH 3 
×
 8
6
 CNP908
4
 CNP907
3
8
7
7
CFD-V3/V7/V7L
3-6. PRE BOARD, MECHANISM DECK, OPTICAL PICK-UP SECTION, CD BOARD
0
 Screws
     +BVTP 3 
×
 10
5
Screw
     +BVTP 3 
×
 10
MAIN board
2
Remove 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
 Screws
     +BVTP 3 
×
 10
3
qa
9
Wire, parallel (CNP305)
(10 core) (V3, V7)
(12 core) (V7L)
8
CNP304
3-5. VOLUME BOARD, FM SW BOARD, MAIN BOARD
Optical pick-up section
CD board
Mechanism deck
PRE board
1
 Screw 
     +BVTP 3 
×
 10
1
 Screws +BVTP 3 
×
 10
3
 Screw +BVTT 2 
×
 6
5
 Screws +PWH 2.6 
×
 10
5
 Screws
     +PWH 2.6 
×
 10
8
 Screw
     +BVTT 2 
×
 6
0
 Wire, parallel (CNP701)
(16 core)
7
 Remove solder
(four places)
6
2
9
4
Cabinet(upper)
Ver 1.1 2001.04
8
CFD-V3/V7/V7L
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
 Screws 
     +B 2.6 
× 5
7
 Claws
5
 Claws
4
 M601
(Capstan/reel motor)
2
3
 Belt
8
6
Ver 1.1 2001.04
3-8. OPTICAL PICK-UP (KSS-213C)
4
1
2
5
3
 Bend the stopper
Chassis ASSY, motor (MB) (spindle)
Shaft, sled
Claws
Claw
Claw
Claw
Cover, CD
Gear
Optical pick-up (KSS-213C)
9
CFD-V3/V7/V7L
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 knob (TU) 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)
10
CFD-V3/V7/V7L
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)
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)
 TUNER  SECTION
 AM Section
Function switch : AM or LW
Volume
: MIN
 FM Section
Function switch : FM
Volume
: MIN
AM  RF signal
generator
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
Put the lead-wire
antenna close to 
the set.
FM RF signal
generator
22.5kHz frequency deviation by 
1kHz signal.
Output level : as low as possible
telescopic
antenna
terminal
0.01
µF
set
32
J301 (phones)
level meter
SECTION 5
ADJUSTMENTS
5-2. ELECTRICAL ADJUSTMENTS
 TAPE RECORDER SECTION
Standard Output Level
Output terminal
HP OUT
load impedance
32 
output signal level
0.25V (–10dB)
Test Tape
Type
Signal
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)
32
digital frequency
counter
J301 (phones)
Tape speed adjustment 
control inside motor
 0dB = 0.775V
Adjustment Location : Mechanism deck
 0dB = 1 
µV

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