CFD-W57L - Sony Audio Service Manual (repair manual)

cfd-w57l service manual
Model
CFD-W57L
Pages
49
Size
6.36 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cfd-w57l.pdf
Date

Read Sony CFD-W57L Service Manual online

– 1 –
Model Name Using Similar Mechanism CFD-222L
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
AEP Model
UK Model
CFD-W57L
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 
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
FM
UK, German model
87.6 - 107 MHz
Italian model
87.5 - 108 MHz
East European model
65 - 74 MHz
87.5 - 108 MHz
MW
531 - 1,602 kHz
LW
153 - 279 kHz
IF
FM: 10.7 MHz
MW/LW: 450 kHz
Aerials
FM: Telescopic aerial
MW/LW: 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)
Outputs
Headphones jack (stereo minijack)
For 16 - 64 ohms impedance headphones
Maximum power output
4.5 W + 4.5 W
Power requirements
For CD radio cassette-corder:
230 V AC, 50 Hz
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 25 W
Ver. 1.3  2008.02
9-923-385-12
2008B04-1
© 2008.02
Sony Corporation
Audio Business Group
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.
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-CW57AD) (1)
(Except East European model)
Remote control (RMT-CW57A) (1)
(East European model)
Conversion plug adaptor (1) (UK)
Design and specifications are subject to change without
notice.
This Compact Disc player is
classified as a CLASS 1
LASER product.
The CLASS 1 LASER
PRODUCT label is located
on the bottom exterior.
CAUTION
Use of controls or adjustments or performance of proce-
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.
Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
Be careful not to apply force on the conductor when soldering
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.
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 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.
B
A
C
D
E
REAR CABINET
FRONT CABINET
– 4 –
TABLE OF CONTENTS
1. GENERAL
Playing a CD ........................................................................... 5
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
3. MECHANICAL ADJUSTMENTS
............................... 15
4. ELECTRICAL ADJUSTMENTS
Tape Section .......................................................................... 15
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
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
7. ELECTRICAL PARTS LIST
......................................... 57
Ver. 1.3
Page of 49
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Download Sony CFD-W57L Service Manual (Repair Manual)

Here you can read online and download Sony CFD-W57L Service Manual in PDF. CFD-W57L service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony CFD-W57L Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.