Model Name UsingCD SectionNEW
Similar MechanismTape SectionCFD-V17
Optical Pick-up TypeDA-11
T ape Transport Mechanism TypeMF-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
Page 2
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.
7-6. CD BLOCK Section ................................................. 37
8. ELECTRICAL PARTS LIST....................................38
– 2 –
Page 3
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 –
Page 4
LOCATION AND FUNCTION OF CONTROLS
SECTION 2
GENERAL
This section is extracted from
instruction manual.
REC PLAY REWFF
Tape compartment
VOLUMEPROGRAM
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 –
Page 5
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
Page 6
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
Page 7
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)
Page 8
3-7. BELT, M601 (CAPSTAN / REEL MOTOR)
)
3
Belt
2
1
Screws
+B 2.6
×
5
Mechanism deck
4
M601
(Capstan/reel motor
– 8 –
Page 9
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
Page 10
c
r
SECTION 5
y
ADJUSTMENTS
5-1. MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :
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
TorqueTorque MeterMeter Reading
ForwardCQ-102C
Forward
Back Tension(0.014 – 0.069 oz•inch)
Fast ForwardCQ-201B
RewindCQ-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 MeterMeter Reading
CQ-403A
more than 60g
(more than 2.12 oz)
5-2. ELECTRICAL ADJUSTMENTS
TAPE RECORDER SECTION
Standard Output Level
Output terminalHP OUT
load impedance32 Ω
output signal level0.25V (–10dB)
Test T ape
TypeSignalUsed for
WS-48A3kHz, 0dBTape 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 –
Page 11
• 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.
T2455kHz
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4520kHz
CT41,780kHz
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3620kHz
CT31,400kHz
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T110.7MHz
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.
L286.5MHz
CT2109.5MHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L186.5MHz
CT1109.5MHz
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 –
Page 12
CD SECTION
R
JW726
JW715
R7
2
4
R766
B C E
e
How to put the set into CD Test Mode
1. Set the function switch to power off.
2. Set the function switch to CD while
l key and x key pressing.
The set is into CD test mode (88 is displayed).
3. Turn the power off to release test mode.
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 rj pin (RFO) and GND
on CD board.
2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)
3. Press the u button.
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 cen-
When observing the eye pattern, set the oscilloscope for AC range
and raise certical sensitivity
[MAIN BOARD] (Conductor side)
C731
50
49
48
JW721
C732
VC
R739
C725
R731
JW718
C73
C743
C740
JW728
R704
R705
2
C714
17
15
R703
C702
R706
R709
R708
C713
R702
R711
C716
R701
R718
C712
20
15
C704
15
16
17
18
JW704
10
20
R721
R724
R723
714
JW724
25
25
8
1
5
IC701
30
32 33
C717
R763
C733
64
C721
9
60
35
R740
1
CN701
C730
55
45
40
C744
C727
C74
C728
C724
R765
R769
C739
R734
741
JW717
R732
IC701 pin
oscilloscop
(AC range)
rj
(RFO)
(GND)
– 12 –
Page 13
Adjustment Location :
t
[MAIN BOARD]
(Component side)
T2 : AM IF Adjustment
T1 : FM IF Adjustment
L3 : AM Tracking Adjustmen
RV1 : VCO Adjustment
L4 : AM Frequency Coverage Adjustment
L1: FM Tracking Adjustment
L2 : FM Frequency Coverage Adjustment
[MAIN BOARD]
(Conductor side)
CT4 : AM Frequency Coverage Adjustment
CT2 : FM Frequency Coverage Adjustment
CT1 : FM Tracking Adjustment
CT3 : AM Tracking Adjustment
– 13 –
Page 14
SECTION 6
DIAGRAMS
6-1. EXPLANATION OF IC TERMINALS
IC702 LC78601E-MPB DIGITAL SIGNAL PROCESSOR, D/A CONVERTER, LCD DRIVE, SYSTEM CONTROL
Pin No.Pin nameI/ODescription
1DEFIIDEF signal input.
23V/5V–Connect to ground.
3PDO–Not used.
4VVSS–Not used (Ground terminal).
5ISET–Not used (Connect to B+ 4.9V).
6VVDD–Connect to B+ 4.9V.
7FRINot used (Connect to low level).
8DVSS–Ground terminal.
9EFMOOEFM signal output.
10EFMIN/RFIRF signal input.
11TMOD–Connect to ground.
12CLVOCLV control signal output.
13HFLIHFL control signal intput.
14TESITES control signal intput.
15TOFFITOFF control signal intput.
16TGLITGL control signal intput.
17JPITJP control signal intput.
18LASEROLaser ON/OFF signal output.
19FSTAOFocus sarch start signal output.
20EFBALOEF balance signal outtput.
21SP8–Not used (OPEN).
22DVDD–Power supply terminal.
23FSEQ/GFS–Not used (OPEN).
24PCKONot used (OPEN).
25SLOFOSled motor control signal output.
26SLED+OSled motor control signal output.
27SLED-OSled motor control signal output.
28PU INILIMIT switch (S701) input.
29DOUT–Not used (OPEN).
30-35S1-6OLCD segment drive output.
36-38COM1-3OLCD common drive output.
1513-933-010-01 SPRING (S/P), TORSION
1523-933-025-01 SPRING (P), TORSION
1533-040-857-01 LEVER (P)
1543-933-024-01 ROLLER, PINCH
1553-933-019-01 SPRING (F/R), TORSION
1563-933-028-01 SPRING (FWD), TORSION
1573-933-016-01 GEAR (S REEL)
1583-008-590-01 SLIDER (REC)
1593-008-592-01 BASE (H), HEAD
The main board and power board have been changed.
Printed wiring board and schematic diagram of new type, and changed parts list are described in this Supplement-1.
Refer to original service manual (9-927-910-11) previously issued for the other information.
NEW TYPE IDENTIFICATION
MAIN BOARD (COMPONENT SIDE)
FORMER TYPE : 1-677-114-11
NEW TYPE : 1-679-073-11
POWER BOARD
(COMPONENT SIDE)
LCD BOARD
(COMPONENT SIDE)
REC SWITCH BOARD
(COMPONENT SIDE)
FORMER TYPE : 1-677-111-11
NEW TYPE : 1-679-070-11
CONTROL BOARD (COMPONENT SIDE)
FORMER TYPE : 1-677-112-11
FORMER TYPE : 1-677-106-11
NEW TYPE : 1-679-066-11
VOLUME BOARD
(COMPONENT SIDE)
NEW TYPE : 1-679-071-11
FORMER TYPE : 1-677-109-11
NEW TYPE : 1-679-069-11
FORMER TYPE : 1-677-113-11
NEW TYPE : 1-679-072-11
CONNECTOR BOARD
(COMPONENT SIDE)
FORMER TYPE : 1-677-107-11
NEW TYPE : 1-679-067-11
SECONDARY BOARD
(COMPONENT SIDE)
FORMER TYPE : 1-677-108-11
NEW TYPE : 1-679-068-11
Page 32
r
CHANGED PARTS LIST
EXPLODED VIEWS
(Service Manual See page 32 to 34)
Before ChangeAfrer Change
Ref No.Part No.DescriptionPart No.Description
5*1-677-107-11 CONNECTOR BOARD
6*1-677-106-11 CONTROL BOARD
52* 1-677-109-11 POWER BOARD
53* 1-677-108-11 SECONDARY BOARD