Read Sony CFD-W57 Service Manual online
– 1 –
Model Name Using Similar Mechanism CFD-222
CD
CD Loading Mechanism Type
KSL-213CGP
Section CD Mechanism Type
KSM-213CGP
Optical Pick-up Name
KSS-213C
TC
Model Name Using Similar Mechanism NEW
Section Tape Transport Mechanism Type
MF-W57C
SERVICE MANUAL
US Model
E Model
CFD-W57
CD RADIO CASSETTE-CORDER
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
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.)
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
US model
87.6 - 108 MHz
Singapore model
87.6 - 107 MHz
AM
US model
530 - 1,710 kHz
Singapore model
531 - 1,602 kHz
(9 kHz STEP)
530 - 1,710 kHz
(10 kHz STEP)
IF
FM: 10.7 MHz
AM: 450 kHz
AM: 450 kHz
Aerials
FM: Telescopic aerial
AM: Built-in ferrite bar aerial
AM: Built-in ferrite bar aerial
SPECIFICATIONS
– Continued on next page –
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 - 12,500 Hz
General
Speaker
Full range: 8 cm (3 1/4 in.) dia.,
3.2 ohms, cone type (2)
3.2 ohms, cone type (2)
Outputs
Headphones jack (stereo minijack)
For 16 - 64 ohms impedance headphones
For 16 - 64 ohms impedance headphones
Maximum power output (Singapore)
4.5 W + 4.5 W
Power requirements
For CD radio cassette-corder:
120 V AC, 60 Hz (US)
230 V AC, 50 Hz (Singapore)
12 V DC, 8 R20 (size D) batteries
For memory back-up:
6 V DC, 4 R6 (size AA) batteries
For remote control:
3 V DC, 2 R6 (size AA) batteries
120 V AC, 60 Hz (US)
230 V AC, 50 Hz (Singapore)
12 V DC, 8 R20 (size D) batteries
For memory back-up:
6 V DC, 4 R6 (size AA) batteries
For remote control:
3 V DC, 2 R6 (size AA) batteries
Power consumption
AC 28 W (US)
AC 25 W (Singapore)
AC 25 W (Singapore)
AUDIO POWER SPECIFICATIONS (US Model)
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION
With 3.2-ohm loads, both channels driven
from 250 - 10,000 Hz: rated 3.3 W per
channel-minimum RMS power, with no more
than 10% total harmonic distortion in AC
operation.
HARMONIC DISTORTION
With 3.2-ohm loads, both channels driven
from 250 - 10,000 Hz: rated 3.3 W per
channel-minimum RMS power, with no more
than 10% total harmonic distortion in AC
operation.
Other Specifications
Photo : E Model
Ver. 1.3 2008.02
9-923-399-12
2008B04-1
© 2008.02
© 2008.02
Sony Corporation
Audio Business Group
Published by Sony Techno Create Corporation
Published by Sony Techno Create Corporation
– 2 –
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.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
Battery life
For CD radio cassette-corder:
FM recording
Sony R20P: approx. 4.5 h
Sony alkaline LR20: approx. 12 h
Tape playback
Sony R20P: approx. 2 h
Sony alkaline LR20: approx. 4.5 h
CD playback
Sony R20P: approx. 2 h
Sony alkaline LR20: approx. 4.5 h
Dimensions
Approx. 444
×
180
×
256 mm (w/h/d)
(17 1/2
×
7 1/8
×
10 1/8 inches) (incl. projecting parts)
Mass
Approx. 7.0 kg (15 lb. 7 oz.) (incl. batteries)
Supplied accessories
AC power cord (1)
Remote control (RMT-CW57A) (1)
Remote control (RMT-CW57A) (1)
Design and specifications are subject to change without
notice.
notice.
CAUTION
Use of controls or adjustments or performance of proce-
dures other than those specified herein may result in haz-
ardous radiation exposure.
dures other than those specified herein may result in haz-
ardous radiation exposure.
Flexible Circuit Board Repairing
•
Keep the temperature of the soldering iron around 270˚C during
repairing.
repairing.
•
Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
circuit board (within 3 times).
•
Be careful not to apply force on the conductor when soldering
or unsoldering.
or unsoldering.
Notes on Chip Component Replacement
•
Never reuse a disconnected chip component.
•
Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
aged by heat.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
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.
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 from more than 30 cm away from the objective lens.
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
– 3 –
NOTES ON CABINETS ASSEMBLY
Put flat cable and wires between the cabinets and push them in the
grooves located at A to E in the figure to prevent disconnection
before assembling the set.
grooves located at A to E in the figure to prevent disconnection
before assembling the set.
B
A
C
D
E
REAR CABINET
FRONT CABINET
To Exposed Metal
Parts on Set
Parts on Set
0.15
µ
F
1.5k
Ω
AC
voltmeter
(0.75V)
voltmeter
(0.75V)
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
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.
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 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes).
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.
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 VOM
or battery-operated AC voltmeter. The “limit” indication is 0.75
V, 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)
V, 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)
– 4 –
TABLE OF CONTENTS
1. GENERAL
Playing a CD ........................................................................... 5
Listening to the radio ............................................................... 6
Playing a tape .......................................................................... 7
Recording on a tape ................................................................. 8
Listening to the radio ............................................................... 6
Playing a tape .......................................................................... 7
Recording on a tape ................................................................. 8
2. DISASSEMBLY
2-1. Front Cabinet Assy .............................................................. 9
2-2. Power Board ........................................................................ 9
2-3. Tuner Board ....................................................................... 10
2-4. Upper Cabinet Assy .......................................................... 10
2-5. CD Mechanism Block ....................................................... 11
2-6. Main Board ....................................................................... 11
2-7. Record/Playback Switch Board ......................................... 12
2-8. Cassette Mechanism Block ............................................... 12
2-9. Holder (MG) Assy ............................................................. 13
2-10. Disc Table .......................................................................... 13
2-11. Pulley (S) ........................................................................... 14
2-12. Holder (BU) Assy .............................................................. 14
2-2. Power Board ........................................................................ 9
2-3. Tuner Board ....................................................................... 10
2-4. Upper Cabinet Assy .......................................................... 10
2-5. CD Mechanism Block ....................................................... 11
2-6. Main Board ....................................................................... 11
2-7. Record/Playback Switch Board ......................................... 12
2-8. Cassette Mechanism Block ............................................... 12
2-9. Holder (MG) Assy ............................................................. 13
2-10. Disc Table .......................................................................... 13
2-11. Pulley (S) ........................................................................... 14
2-12. Holder (BU) Assy .............................................................. 14
3. MECHANICAL ADJUSTMENTS
............................... 15
4. ELECTRICAL ADJUSTMENTS
Tape Section .......................................................................... 15
Tuner Section ......................................................................... 17
CD Section ............................................................................ 18
Tuner Section ......................................................................... 17
CD Section ............................................................................ 18
5. DIAGRAMS
5-1. IC Pin Description ............................................................. 19
5-2. Circuit Boards Location .................................................... 20
5-3. Block Diagram –CD Section– ........................................... 21
5-4. Block Diagram –Main Section– ........................................ 23
5-5. Printed Wiring Board –Tuner Section– ............................. 25
5-6. Schematic Diagram –Tuner Section– ................................ 26
5-7. Schematic Diagram –CD Section– .................................... 30
5-8. Printed Wiring Boards –CD Section– ............................... 33
5-9. Printed Wiring Boards –Main Section– ............................ 36
5-10. Schematic Diagram –Main Section– ................................. 39
5-11. Printed Wiring Board –Panel Section– .............................. 44
5-12. Schematic Diagram –Panel Section– ................................ 47
5-2. Circuit Boards Location .................................................... 20
5-3. Block Diagram –CD Section– ........................................... 21
5-4. Block Diagram –Main Section– ........................................ 23
5-5. Printed Wiring Board –Tuner Section– ............................. 25
5-6. Schematic Diagram –Tuner Section– ................................ 26
5-7. Schematic Diagram –CD Section– .................................... 30
5-8. Printed Wiring Boards –CD Section– ............................... 33
5-9. Printed Wiring Boards –Main Section– ............................ 36
5-10. Schematic Diagram –Main Section– ................................. 39
5-11. Printed Wiring Board –Panel Section– .............................. 44
5-12. Schematic Diagram –Panel Section– ................................ 47
6. EXPLODED VIEWS
6-1. Front Cabinet Section ........................................................ 52
6-2. Rear Cabinet Section ......................................................... 53
6-3. Upper Cabinet Section ...................................................... 54
6-4. CD Mechanism Section .................................................... 55
6-5. Optical Pick-up Section .................................................... 56
6-2. Rear Cabinet Section ......................................................... 53
6-3. Upper Cabinet Section ...................................................... 54
6-4. CD Mechanism Section .................................................... 55
6-5. Optical Pick-up Section .................................................... 56
7. ELECTRICAL PARTS LIST
......................................... 57
Ver. 1.3
