CFD-S350, CFD-S350L - Sony Audio Service Manual (repair manual)

cfd-s350, cfd-s350l service manual
Model
CFD-S350 CFD-S350L
Pages
61
Size
5.47 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cfd-s350-cfd-s350l.pdf
Date

Read Sony CFD-S350 / CFD-S350L Service Manual online

1
SERVICE MANUAL
CFD-S350/S350L
CD RADIO CASSETTE-CORDER
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 
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
SPECIFICATIONS
Radio section
Frequency range
CFD-S350
FM
87.5 - 108 MHz
AM
US, CND, E92, MX model:
530 - 1,710 kHz
TW model:
531 - 1,611 kHz
other models:
530 - 1,611 kHz (9 kHz step)
530 - 1,610 kHz (10 kHz step)
CFD-S350L
FM
87.5 - 108 MHz
MW
531 - 1,611 kHz (9 kHz step)
530 - 1,610 kHz (10 kHz step)
LW
153 - 279 kHz
IF
FM: 10.7 MHz
AM/MW/LW: 450 kHz
Aerials
FM: Telescopic aerials
AM/MW/LW: Built-in ferrite bar aerials
Ver. 1.9  2007.09
9-879-435-10
2007I04-1
© 2007.09
AUDIO POWER SPECIFICATIONS (US Model)
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION
With 3.2-ohm loads, both channels driven
from 150 - 10,000 Hz; rated 1.8 W per
channel-minimum RMS power, with no
more than 10 % total harmonic distortion
in AC operation.
US Model
Canadian Model
E Model
Australian Model
CFD-S350
AEP Model
UK Model
CFD-S350L
– Continued on next page –
Sony Corporation
Personal Audio Division
Published by Sony Techno Create Corporation
CD
Model Name Using Similar Mechanism CFD-S250
Section
CD Mechanism Type
KSM-213CDP
Optical Pick-up Name
KSS-213C
Model Name Using Similar Mechanism NEW
TC
MF-S350//C
Section Tape Transport Mechanism Type
MF-S200//C
MF-S200//C1
MF-S350V//C
2
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
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
US, CND, E92, MX, TW model: 2.3 W + 2.3 W
(at 3.2 ohms, 10% harmonic distortion)
other models: 5.2 W
Power requirements
For CD radio cassette-corder:
US, CND, E92, MX, TW model: 120 V AC, 60 Hz
KR model: 220 V AC, 60 Hz
Other models: 230 V AC, 50 Hz
9 V DC, 6 R20 (size D) batteries
For remote control:
3 V DC, 2 R03 (size AAA) batteries
Power consumption
AC 14 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 
×
 155 
×
 260 mm (w/h/d)
(16
 5 ⁄8
 
×
 6
 1 ⁄8
 
×
 10
 1 ⁄4
 inches) (incl. projecting
parts)
Mass
Approx. 3.7 kg (8 lb. 3 oz) (incl. batteries)
Supplied accessory
Mains lead (1)
Remote control (1)
Design and specifications are subject to change
without notice.
CFD-S350/S350L
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.
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.
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.
• Abbreviation
CND
: Canadian model
E92
: AC 120V area in E model
KR
: Korean model
MX
: Mexican model
TW
: Taiwan model
Ver. 1.9
3
CFD-S350/S350L
 UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
 : LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40
°
C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350
°
C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
TABLE OF CONTENTS
1. SERVICING NOTES
......................................................... 4
2. GENERAL
............................................................................ 5
3. DISASSEMBLY
3-1.   Cabinet Top Assy ................................................................ 7
3-2.   Cabinet Front Assy, Cabinet Bottom Assy .......................... 7
3-3.   Wires ................................................................................... 8
3-4.   MD Block ............................................................................ 8
3-5.   Holder (Cassette) Sub Assy ................................................. 9
3-6.   Power Key Board ................................................................ 9
3-7.   Main Board ....................................................................... 10
3-8.   Tuner Board, Power Board ................................................ 10
3-9.   CD Lid ............................................................................... 11
3-10. LCD Block Assy ............................................................... 11
3-11. CD Block Assy .................................................................. 12
3-12. Optical Pick-up ................................................................. 12
3-13. R/P Head (HRP301), Erase Head (HE301), TC Board ..... 13
3-14. Motor Assy (M801), RF Belt ............................................ 13
4. MECHANICAL ADJUSTMENTS
............................... 14
5. ELECTRICAL ADJUSTMENTS
Tape Section .......................................................................... 14
Tuner Section ......................................................................... 15
CD Section ............................................................................ 17
6. DIAGRAMS
6-1.   Block Diagram – CD Section – ......................................... 19
6-2.   Block Diagram – Tuner Section (CFD-S350 Model) – .... 20
6-3.   Block Diagram – Tuner Section (CFD-S350L Model) – .. 21
6-4.   Block Diagram – Main Section – ...................................... 22
6-5.   Circuit Boards Location .................................................... 23
6-6.   Printed Wiring Board – CD Section – ............................... 24
6-7.   Schematic Diagram – CD Section – .................................. 25
6-8.   Printed Wiring Board
          – Tuner Section (CFD-S350 Model) – ............................. 26
6-9.   Schematic Diagram
          – Tuner Section (CFD-S350 Model) – ............................. 27
6-10. Printed Wiring Board
          – Tuner Section (CFD-S350L Model) – ........................... 28
6-11. Schematic Diagram
          – Tuner Section (CFD-S350L Model) – ........................... 29
6-12. Schematic Diagram – Main Section (1/2) – ...................... 30
6-13. Schematic Diagram – Main Section (2/2) – ...................... 31
6-14. Printed Wiring Boards – Main Section – .......................... 32
6-15. Printed Wiring Board – TC Section – ............................... 33
6-16. Schematic Diagram – TC Section – .................................. 34
6-17. Printed Wiring Boards – Control Section – ....................... 35
6-18. Schematic Diagram – Control Section – ........................... 36
6-19. Printed Wiring Boards – Power Supply Section – ............ 37
6-20. Schematic Diagram – Power Supply Section – ................. 38
7. EXPLODED VIEWS
7-1.   Cabinet Section ................................................................. 44
7-2.   Cabinet (Front) Section ..................................................... 45
7-3.   Cabinet (Top) (1) Section .................................................. 46
7-4.   Cabinet (Top) (2) Section .................................................. 47
7-5.   Cabinet (Bottom) Section .................................................. 48
7-6.   Tape Mechanism Section .................................................. 49
7-7.   CD Mechanism Section .................................................... 50
8. ELECTRICAL PARTS LIST
......................................... 51
SAFETY  CHECK-OUT (US MODEL)
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 0.5 mA (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
VOM or battery-operated AC voltmeter. The “limit” indica-
tion 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 2 V AC range are
suitable.  (See Fig. A)
1.5 k
0.15 
µ
F
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
Fig. A.  Using an AC voltmeter to check AC leakage.
Ver. 1.4
4
CFD-S350/S350L
LASER  DIODE  AND  FOCUS  SEARCH  OPERATION
CHECK
1. Turn ON the [POWER] (CFD-S350) or [OPERATE] (CFD-S350L)
button and press [CD] button to CD position.
2. Open the CD lid.
3. Turn on S801 with screwdriver, etc. as following figure.
4. Press the  N X  (CD) button.
5. 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 three times for focus search.
CHUCK PLATE JIG ON REPAIRING
On repairing CD section, playing a disc without the lid (CD), use
Chuck Plate Jig.
• Code number of Chuck Plate Jig: X-4918-255-1
SECTION 1
SERVICING NOTES
S801
Page of 61
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