Sony CFD-V5 Service manual
CFD-V5
SERVICE MANUAL
Ver 1.1 2000.09
With supplement-1
(9-927-910-81)
SPECIFICATIONS
US Model
Model Name Using CD Section NEW
Similar Mechanism Tape Section CFD-V17
Optical Pick-up Type DA-11
T ape Transport Mechanism Type MF-V5-117
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
With 3.2-ohm loads, both channels driven from 150 - 10,000 Hz; rated
1.3 W per channel-minimum RMS power, with no more than 10 % total
harmonic distortion in AC operation.
Other Specifications
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: T elescopic 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): 70 - 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 requirements
For CD radio cassette-corder:
120 V AC, 60 Hz
9 V DC, 6 size D (R20) batteries
Power consumption
AC 20 W
– Contimued on page 2 –
CD RADIO CASSETTE-CORDER
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 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.
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 ! 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.
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 ......................................... 5
3-2. Contorl Board, Connector Board................................ 5
3-3. Cabinet (Rear)............................................................. 6
3-4. Power Board, Secondary Board,
Half Battery Board, Battery Board ............................. 6
3-5. Volume Board, LCD Board, Main board .................... 7
3-6. REC Switch Board, Mechanism Deck,
Optical pick-up Section, CD Motor Board ................. 7
3-7. Beit, M601 (Capstan / Reel Motor) ............................ 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..................................... 14
6-2. Block Diagrams ........................................................ 15
6-3. Printed Wiring Boards .............................................. 19
6-4. Schematic Diagram (Main Section 1/2) ................... 23
6-5. Schematic Diagram (Main Section 2/2) ................... 27
7. EXPLODED VIEWS
7-1. Front Cabinet Section ............................................... 32
7-2. Rear Cabinet Section ................................................ 33
7-3. Upper Cabinet Section.............................................. 34
7-4. Mechanism Deck Section (1) ................................... 35
7-5. Mechanism Deck Section (2) ................................... 36
7-6. CD BLOCK Section ................................................. 37
8. ELECTRICAL PARTS LIST....................................38
– 2 –
SECTION 1
Insert a precision
screw driver and push
SWITCH (S801)
SERVICING NOTES
SAFETY CHECK-OUT
After correcting the original service problem, perform the
following safety check before releasing the set to the customer :
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage. Check
leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5mA (500 microampers).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a V OM
or battery-operated A C voltmeter . The “limit” indication is 0.75V,
so analog meters must have an accurate low-voltage scale. The
Simpson 250 and Sanwa SH-63Trd are examples of a passive
VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See Fig. A)
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
To Exposed Metal
Parts on Set
1.5k
0.15
µ
F
Fig. A. Using an AC voltmeter to check AC leakage.
Ω
Earth Ground
AC
voltmeter
(0.75V)
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.
– 3 –
LOCATION AND FUNCTION OF CONTROLS
SECTION 2
GENERAL
This section is extracted from
instruction manual.
REC PLAY REW FF
Tape compartment
VOLUME PROGRAM
MEGA BASS*1
OPR/BATT indicator
STOP/EJECT
REPEAT
PAUSE
RANDOM
REPEAT
TUNING
CD compartment
Z PUSH OPEN/CLOSE
u
x
i (headphone) jack
FUNCTION
.,>
– 4 –
SECTION 3
DISASSEMBLY
z
The equipment can be removed using the following procedure.
Cabinet (front) sub ASSY
Set
Cabinet (rear) Cabinet (upper)
REC switch board, Mechanism deck, Optical pick-up section, CD motor board
Belt, M601 (capstan/reel motor)
Power board, Secondary board, Half battery board, battery board
Note : Follow the disassembly procedure in the numerical order given.
3-1. CABINET (FRONT) SUB ASSY
8
Knob (Vol )
Cabinet (front) sub assy
Control board, Connecter board
Volume board, LCD board, Main board
7
Screw
+BVTP 3
×
12
9
6
Open the Lid (CD)
3-2. CONTROL BOARD, CONNECTOR BOARD
Cabinet (Front) sub assy
3
Screws
+BVTP 3
5
×
12
2
Screws
+BVTP 3
cabinet (rear)
1
Lid, battery case
×
10
4
Screw
+BVTP 3
×
10
2
– 5 –
CONTROL board
Connector board
1
Screws
+BVTP 2.6
×
8
3-3. CABINET (REAR)
)
8
2
Open the Holder assy, cassette by
pressing STOP/EJECT button.
5
Screw +BVTP 3 × 12
Screws +BVTP 3 × 10
5
STOP/EJECT
button
7
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
6
CNP902
(POWER board)
Cabinet (rear)
3-4. POWER BOARD, SECONDARY BOARD, HALF BATTERY BOARD, BATTERY BOARD
5
Screws
+WH 3
×
4
CNP907
Battery board
8
8
6
CNP90
1
Screws
+BVTP 3
×
10
Secondary board
2
+BVTP 3
Screws
×
10
3
POWER board
– 6 –
Cabinet (rear)
7
HALF Battery board
3-5. VOLUME BOARD, LCD BOARD, MAIN BOARD
k
8
Screws
4
S801
1
Wire, parallel
(9 core) (CN706)
+BVTP 3
5
CN701
×
10
9
MAIN board
0
CNP301
7
Wire, parallel
(15 core)
(optical pick-up)
LCD board
3
2
Screws
+BVTP 3
3
VOLUME board
×
10
6
CNP302
Cabinet (Upper)
3-6. REC SWITCH BOARD, MECHANISM DECK, OPTICAL PICK-UP SECTION, CD MOTOR BOARD
CD MOTOR board
7
6
Remove solder
5
T wo screws
+PWX 2.6
3
+BVTP 3
×
10
Screws
×
10
Mechanism dec
1
Screws
+BVTP 3
×
10
5
T wo screws
+PWX 2.6
Optical pick-up section
×
10
8
– 7 –
4
REC switch board
2
Cabinet (Upper)
3-7. BELT, M601 (CAPSTAN / REEL MOTOR)
)
3
Belt
2
1
Screws
+B 2.6
×
5
Mechanism deck
4
M601
(Capstan/reel motor
– 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)
2
Screw (+BVTP 2.6 × 8)
3 Turn the knob (TU) fully in the direction of the allow as shown in the illustration.
4Turn 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
T uning knob
4
Tuning capacitor gear
– 9 –
Cabinet (rear
c
r
SECTION 5
y
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.)
Do not use a magnetized screwdriver for the adjustments.
3. The adjustments should be performed with the rated power supply voltage (9V) unless otherwise noted.
Torque Measurement
Torque Torque Meter Meter Reading
Forward CQ-102C
Forward
Back Tension (0.014 – 0.069 oz•inch)
Fast Forward CQ-201B
Rewind CQ-201B
CQ-102C
18 – 60 g•cm
(0.25 – 0.83 oz•inch)
1.0 – 5.0 g•cm
45 – 95 g•cm
(0.62 – 1.32 oz•inch)
45 – 95 g•cm
(0.62 – 1.32 oz•inch)
Adjustment Location : Mechanism deck
Tape speed adjustment
control inside motor
T ape Tension Measurement
Torque Meter Meter Reading
CQ-403A
more than 60g
(more than 2.12 oz)
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 T ape
Type Signal Used for
WS-48A 3kHz, 0dB Tape Speed Adjustment
Tape Speed Adjustment
Procedure :
Mode : Playback
test tape
WS-48A
(3kHz, 0dB)
set
digital frequenc
counter
32
Ω
J301 (phones)
0dB = 0.775V
TUNER SECTION
AM Section
Function switch : AM
Volume : MIN
AM RF signal
generator
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
400Hz signal.
Output level : as low as possible
set
0dB = 1 µV
Put the lead-wire
antenna close to
the set.
32
Ω
µ
F
0.01
level mete
telescopi
antenna
terminal
Adjustment V alue : 3,000Hz
Standard V alue : 2,970 - 3,030Hz
Frequency difference between the beginning and the end of the tape
should be within 1.5% (45Hz).
J301 (phones)
– 10 –
• Repeat the procedures in each adjustment several times, and the
c
2
Q
3
1
1
W
W
2
3
r
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T2 455kHz
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4 520kHz
CT4 1,780kHz
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3 620kHz
CT3 1,400kHz
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1 10.7MHz
VCO Adjustment
Procedure :
FM RF signal
generator
0.01µF
Carrier frequency : 98MHz
Modulation : No modulation
Output level : 1.38mV (–55dB)
telescopi
antenna
terminal
set
1. Connect the frequency counter to 4 and 7 pin of IC 1 as
shown the figure below.
2. Turn the set to 98MHz.
3. Adjust RV1 for 76,000Hz reading frequency counter.
Standard Value : 75,950 – 76,050Hz
[ MAIN BOARD] (Conductor side)
frequency counte
1µF
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L2 86.5MHz
CT2 109.5MHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1 86.5MHz
CT1 109.5MHz
Adjustment Location : Main board (See page 13)
[MAIN BOARD]
(Conductor side)
C
C
JW3
C1
T1
30
C6
C21
L2
VCO
25
IC1
20
C2
C3
Adjustment Location : Main board (See page 13)
CF1
R5
C1
R2
10
1516
33k
Ω
J
1
5
VCO
C14
C9
C22
R6
T2
R7
C19
C15
JW1
R8
C
C18
310
B
C
E
FB1
JW2
CF2
JW71
JW32
J
JW321
JW320
JW319
JW318
JW317
C13
JW316
C12
– 11 –
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