Sony CFD-V3, CFD-V7, CFD-V7L Service manual
CFD-V3/V7/V7L
SERVICE MANUAL
Ver 1.1 2001.04
Photo : CFD–V7
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 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
SPECIFICATIONS
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 –
9-873-079-12
2001D0200-1
© 2001.4
CD RADIO CASSETTE-CORDER
Sony Corporation
Personal Audio Company
Shinagawa Tec Manual Production Group
CFD-V3/V7/V7L
Ver 1.1 2001.04
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 model)
230 V AC, 50 Hz (Except Canadian 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.
Information
For customers in Europe
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
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 – ................... 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. Schematic Diagrams – Control/Power Section – .... 23
6-11. Schematic Diagrams – CD Section –....................... 24
6-12. Printed Wiring Boards – CD Section –...................... 25
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.
CAUTION
Use of controls or adjustments or performance
of procedures other than those specified herein
may result in hazardous radiation exposure.
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.
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.
2
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
SECTION 1
SERVICING NOTES
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 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 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
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)
3
CFD-V3/V7/V7L
LOCATION AND FUNCTION OF CONTROLS
SECTION 2
GENERAL
This section is extracted from
instruction manual.
Inserting a cassette
With the side you want to
play facing upward
* FM MODE•ISS for CFD-V7L
VOLUME
MEGA BASS
REC PLAY REW FF
i
STOP/EJECT
PAUSE
PLAY MODE
ENTER
OPR/BATT
FUNCTION .,>
TUNING
FM MODE (rear)
Z PUSH OPEN/CLOSE
x
u
Loading a CD
c
With the labeled side up
Display
C
Total track number
D
Track number
E
Programmed track
4
DISASSEMBLY
8
z
The equipment can be removed using the following procedure.
SECTION 3
CFD-V3/V7/V7L
Ver 1.1 2001.04
Cabinet (front) sub ASSY
Set
Cabinet (rear) Cabinet (upper)
Control board
Power board, Inlet board,
BATT (R) board, BATT (L) board
Volume board,
FM SW board, Main board
PRE board, Mechanism deck,
Optical pick-up section, CD board
Note : Follow the disassembly procedure in the numerical order given.
3-1. CABINET (FRONT) SUB ASSY, CABINET (REAR)
Knob (vol )
8
Cabinet (front) sub assy
7
Screw
+BVTP 3
5
Belt, M601 (capstan/reel motor),
HRP901 Head, Magnetic (Record/playback),
HE901 Head (Erase)
×
12
Cabinet (rear)
4
Screw
+BVTP 3
×
12
3-2. CONTROL BOARD
6
Open the Lid (CD)
9
Cabinet (front) sub assy
3
3
Screws
+BVTP 3
CONTROL board
×
12
2
Screws
+BVTP 3
1
Lid, battery case
×
12
2
Screws
+BVTP 2.6
1
Screws
+BVTP 2.6
×
8
×
5
CFD-V3/V7/V7L
8
3-3. CABINET (UPPER)
5
6
Screw +BVTP 3 × 10
2
Open the Holder assy, cassette by
pressing STOP/EJECT button.
Screw +BVTP 3 × 12
STOP/EJECT
button
1
Screws
+BVTP 3
×
12
3
Open the Lid (CD)
Cabinet (upper)
4
Screw
+BVTP 3
Remove the handle in
the direction of the arrow.
×
12
8
9
7
CNP902
(POWER board)
3-4. POWER BOARD, INLET BOARD, BATT (R) BOARD, BATT (L) BOARD
BATT (R) board
4
CNP907
8
Cabinet (rear)
5
Screws
+WH 3
×
8
6
CNP90
1
+BVTP 3 × 10
6
Screws
POWER board
2
+BVTP 3 × 10
Screws
3
INLET board
CNP907
7
BATT (L) board
Cabinet (rear)
3-5. VOLUME BOARD, FM SW BOARD, MAIN BOARD
)
4
Remove solder
(four places)
0
Screws
+BVTP 3 × 10
MAIN board
5
Screw
+BVTP 3
FM SW board
2
Remove solder
(five places)
CFD-V3/V7/V7L
Ver 1.1 2001.04
×
10
7
Wire, parallel (CN802)
(15 core)
6
KH801
1
Screws
+BVTP 3 × 10
qa
S801
3
VOLUME board
8
CNP304
9
Wire, parallel (CNP305)
(10 core) (V3, V7)
(12 core) (V7L)
Cabinet(upper)
3-6. PRE BOARD, MECHANISM DECK, OPTICAL PICK-UP SECTION, CD BOARD
8
7
Remove solder
(four places)
5
Screws
+PWH 2.6
×
10
CD board
9
Screw
+BVTT 2
×
6
0
Wire, parallel (CNP701
(16 core)
5
Screws +PWH 2.6 × 10
1
Screws +BVTP 3 × 10
3
Screw +BVTT 2 × 6
PRE board
Optical pick-up section
6
2
4
1
Screw
+BVTP 3
Mechanism deck
Cabinet(upper)
×
10
7
CFD-V3/V7/V7L
)
Ver 1.1 2001.04
3-7. BELT, M601 (CAPSTAN / REEL MOTOR), “ HRP901 HEAD, MAGNETIC (RECORD/PLAYBACK) ”,
HE901 HEAD (ERASE)
HRP901 Head, Magnetic (Record/ Playback)
HE901 Head (Erase)
7 Claws
5 Claws
3-8. OPTICAL PICK-UP (KSS-213C)
8
3 Belt
1 Screws
+B 2.6 × 5
Mechanism deck
6
2
4 M601
(Capstan/reel motor)
Claws
4
Shaft, sled
Cover, CD
Claw
Optical pick-up (KSS-213C)
1
Claw
3
Bend the stopper
5
Gear
Claw
2
Chassis ASSY, motor (MB) (spindle
8
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.
Cabinet (front) sub ASSY
1 Pointer
knob (Tu)
CFD-V3/V7/V7L
2 Screw (+BVTP 2.6 × 8)
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.
5
3
Tuning knob
4
Tuning capacitor gear
Cabinet (rear
9
CFD-V3/V7/V7L
c
r
y
SECTION 5
ADJUSTMENTS
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 demagnetizer. (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 supply 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
Back Tension
Fast Forward CQ-201B (45 – 95 g•cm)
Rewind CQ-201B (45 – 95 g•cm)
CQ-102C (1.0 – 5.0 g•cm)
Tape Tension Measurement
Torque Meter Meter Reading
CQ-403A
0.1 – 0.49 mN•m
(0.014 – 0.069 oz•inch)
4.42 – 9.31 mN•m
(0.62 – 1.32 oz•inch)
4.42 – 9.31 mN•m
(0.62 – 1.32 oz•inch)
more than 60g
(more than 2.12 oz)
Adjustment Location : Mechanism deck
Tape speed adjustment
control inside motor
TUNER SECTION
0dB = 1 µV
AM Section
Function switch : AM or LW
Volume : MIN
AM RF signal
generator
Put the lead-wire
antenna close to
the set.
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
Type Signal Used for
WS-48A 3kHz, 0dB Tape Speed Adjustment
Tape Speed Adjustment
Procedure :
Mode : Playback
test tape
WS-48A
(3kHz, 0dB)
set
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).
32Ω
J301 (phones)
0dB = 0.775V
digital frequenc
counter
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
FM Section
Function switch : FM
Volume : MIN
FM RF signal
generator
22.5kHz frequency deviation by
1kHz signal.
Output level : as low as possible
set
32Ω
J301 (phones)
0.01µF
level mete
telescopi
antenna
terminal
10
• Repeat the procedures in each adjustment several times, and the
)
8
GND
51pin
TEST mode : momentarily short
[MAIN BOARD] (Conductor side)
R730
C
J
W
C
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
• Abbreviation
CET : East European & Russian
SP : Singapore
AM/LW IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T2 455kHz
CFD-V3/V7
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4 520kHz ( 520kHz) < 516kHz>
CT4 1,780kHz (1,680kHz) <1,630kHz>
( ) : V3/V7: AEP, UK, CET, SP
< > : V7:Italian
[ ] : V7L
C844
C8
C
IC801
R851
C801
CFD-V3/V7/V7L
Ver 1.1 2001.04
R
R816
R815
R814
R813
R812
R811
C810
R810
21
JW316
S351
-1 -2
320
JC310
JW317
JW318
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3 620kHz
CT3 1,400kHz
CFD-V7L
LW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4 145kHz
CT4, CV2 300kHz
LW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3 160kHz
CT3, CV3 260kHz
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1 10.7MHz
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L2 86.5MHz ( 87.0MHz) < 87.35MHz> [ 87.0MHz]
CT2 109.5MHz (108.3MHz) <108.25MHz> [108.3MHz]
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 TP (RF) and GND on CD
board.
2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)
3. Press the 7 button two times (LPC ON).
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)
VOLT/TV : 200mV
TIME/DIV : 500 nS
RF level
0.7 – 1.0 Vp-p (LPC ON)
1.0 – 1.4 Vp-p (LPC OFF
When observing the eye pattern, set the oscilloscope for AC range
and raise certical sensitivity
oscilloscope
(AC range)
L1 86.5MHz ( 87.0MHz) < 87.35MHz> [ 87.0MHz]
CT1 109.5MHz (108.3MHz) <108.25MHz> [108.3MHz]
Adjustment Location : Main board (See page 12)
CD SECTION
How to put the set into CD Test Mode
1. Set the function switch to power off.
2. Set the function switch to CD.
3. Set Test mode by momentarily shorting both of the IC801 51pin
to GND. (Shorting the terminals momentarily is sufficient).
The set is into CD test mode (88 is displayed).
4. Turn the power off to release test mode.
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
[CD BOARD] (Conductor side)
JW710
R701
R706
R709
R705
R703
R702
R710
R704
C736
703
R711
C705
(RF)
TP
TP (RF)
R708
C734
2
(GND)
C731
C704
JW726
IC701
J
C703
C743
C730
R729
C747
C744
11
CFD-V3/V7/V7L
)
Adjustment Location :
[MAIN BOARD]
(Component side)
L4 : AM/LW Frequency
Coverage Adjustment
L3: AM/LW Tracking Adjustment
T1 : FM IF Adjustment
T2 : AM/LW IF Adjustment
CV2 : LW Frequency Coverage Adjustment (V7L
L2 : FM Frequency Coverage Adjustment
L1 : FM Tracking Adjustment
CV3: LW Tracking Adjustment (V7L)
[MAIN BOARD]
(Conductor side)
CT1 : FM Tracking Adjustment
CT3 : AM/LW Tracking Adjustment
CT2 : FM Frequency
Coverage Adjustment
CT4: AM/LW Frequency
Coverage Adjustment
12
CFD-V3/V7/V7L
SECTION 6
DIAGRAMS
6-1. EXPLANATION OF IC TERMINALS
IC801 µPD789316GK-903 SIGNAL PROCESSOR, D/A CONVERTER, LCD DRIVE, SYSTEM CONTROL
Pin No. Pin name I/O Description
1 – 4 NC — Not used (open)
5 IC — Connect to ground.
6 XT1 I Connect to ground.
7 XT2 — Not used (open)
8 VDD — Power supply terminal (B+ 3.3 V)
9 VSS — Ground terminal
10 CL1 I Oscillator terminal (4 MHz)
11 CL2 — Oscillator terminal (4 MHz)
12 RESET I Reset signal input
13 NC — Not used (open)
14 SYNC–R — Not used (open)
15 CE O Chip enable signal output
16 C–RST O Reset signal output to the LC78645E (IC701)
17 CAPH — Charge pump capacitor terminal
18 CAPL — Charge pump capacitor terminal
19 – 21 VLC0 – 2 — Capacitor connect terminal
22 – 25 COM0 – 3 O LCD common drive output
26 – 43 S0 – 17 — Not used (open)
44 – 48 S18 – 22 O LCD segment drive output
49 S23 — Not used (open)
50 ENTER I Key (ENTER) input
51 MODE I Key (MODE) input
52 PLAY I Key (H PLAY) input
53 FR I Key (l FR) input
54 FF I Key (L FF) input
55 STOP I Key (s STOP) input
56 DOOR I Door open/close input
57 WRQ I Command signal input
58 TEST I Test mode signal terminal input (TEST: L)
59 MUTE O Mute signal output
60 FSEQ I Frame SYNC signal input
61 DRF I DRF (Defect RF) input
62 DO O Serial data output
63 DIN I Serial data input
64 CLK I Clock signal input
13
CFD-V3/V7/V7L
d
• Circuit Boards Location
VOLUME board
POWER board
PRE board
INLET board
BATT (R) board
BATT (L) board
FM SW boar
CONTROL board
MAIN board
CD board
14
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