CFD-S26 — Sony Audio Service Manual (repair manual)

Model
CFD-S26
Pages
69
Size
9.05 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cfd-s26.pdf
Date

View Sony CFD-S26 Service Manual online

1
CD
Model Name Using Similar Mechanism CFD-S22/S32
Section
CD Mechanism Type
KSM-213CDP
Optical Pick-up Name
KSS-213C
TC
Model Name Using Similar Mechanism CFD-V5
Section Tape Transport Mechanism Type
MF-V5-117
SERVICE MANUAL
US Model
E Model
Australian Model
CFD-S26
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 
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
SPECIFICATIONS
– Continued on next page –
Radio section
Frequency range
FM: 87.6 - 108 MHz
US, E92, MX model:
AM: 530 - 1,710 kHz
SP, AR, AUS, E4 model:
AM: 531 - 1,602 kHz (9 kHz step)
AM: 530 - 1,610 kHz (10 kHz step)
Antennas
FM: Telescopic antenna
AM: Built-in ferrite bar antenna
Cassette-corder section
Recording system
4-track 2 channel stereo
Fast winding time
Approx. 120 sec. with Sony cassette C-60
Frequency response
TYPE I (normal): 80 - 10,000 Hz
Photo: SILVER
Ver. 1.3  2005.09
9-873-112-14
2005I04-1
© 2005.09
AUDIO POWER SPECIFICATIONS (US model)
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION
With 3.2-ohm loads, both channels driven from
150 - 6,300 Hz; rated 1.8 W per channel-
minimum RMS power, with no more than 10%
total harmonic distortion in AC operation.
Sony Corporation
Personal Audio Group
Published by Sony Engineering Corporation
2
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.
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 output (excluding US model)
2.3 W + 2.3 W (at 3.2 ohms, 10 %
harmonic distortion in AC operation)
Power requirements
For CD radio cassette-corder:
    US, E92, MX model:
      120 V AC, 60 Hz
    SP, AR, AUS model:
      230 V AC, 50 Hz
    E4 model:
      110 - 120 V/220 - 240 V AC selectable, 50/60 Hz
9 V DC, 6 size D (R20) batteries
Power consumption
AC 20 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 
× 159 × 284 mm (w/h/d)
(16 
5/8
 
× 6 
3/8
 
× 11 
1/4
 inches) (incl. projecting parts)
Mass
Approx. 3.8 kg (8 lb. 6 oz.) (incl. batteries)
Supplied accessories
AC power cord (1)
Design and specifications are subject to change without
notice.
• Abbreviation
AR
: Argentina model
AUS : Australian model
E4
: AC 110-120V/220-240V area in E model
E92
: AC 120V area in E model
MX
: Mexican model
SP
: Singapore model
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.
CFD-S26
3
TABLE OF CONTENTS
1. SERVICING NOTES
......................................................... 4
2. GENERAL
............................................................................ 7
3. DISASSEMBLY
3-1.   Cabinet (Front) Sub Assy .................................................... 8
3-2.   Wires ................................................................................... 9
3-3.   Power (1) Board, Power (2) Board ...................................... 9
3-4.   Voltage Select Board ......................................................... 10
3-5.   Cabinet (Upper) Assy ........................................................ 10
3-6.   Main Board ....................................................................... 11
3-7.   CD Mechanism Block ....................................................... 11
3-8.   Tape Mechanism Block ..................................................... 12
3-9.   Holder Assy, Cassette ........................................................ 12
3-10. PRE Board ......................................................................... 13
3-11. Belt, M801 (Capstan/Reel Motor),
HRP301 (Head, Magnetic) ................................................ 13
3-12. Optical Pick-up ................................................................. 14
4. MECHANICAL ADJUSTMENTS
............................... 15
5. ELECTRICAL ADJUSTMENTS
Tape Section .......................................................................... 15
Tuner Section ......................................................................... 16
CD Section ............................................................................ 17
6. DIAGRAMS
6-1.   IC Pin Description ............................................................. 18
6-2.   Circuit Boards Location .................................................... 19
6-3.   Block Diagram – CD Section (Former Type) – ................ 20
6-4.   Block Diagram – Main Section (Former Type) – .............. 21
6-5.   Printed Wiring Board – CD Section (Former Type) – ....... 22
6-6.   Schematic Diagram – CD Section (Former Type) – ......... 23
6-7.   Printed Wiring Boards – Main Section (Former Type) – .. 24
6-8.   Schematic Diagram – Main Section (1/4) (Former Type) – .. 25
6-9.   Schematic Diagram – Main Section (2/4) (Former Type) – .. 26
6-10. Schematic Diagram – Main Section (3/4) (Former Type) – .. 27
6-11. Schematic Diagram – Main Section (4/4) (Former Type) – .. 28
6-12. Printed Wiring Boards – Control Section (Former Type) – ... 29
6-13. Schematic Diagrams – Control Section (Former Type) – ...... 30
6-14. Printed Wiring Boards – Power Supply Section (Former Type) – .. 31
6-15. Schematic Diagrams – Power Supply Section (Former Type) – .... 32
6-16. Block Diagram – CD Section (New Type) – ..................... 33
6-17. Block Diagram – Main Section (New Type) – .................. 34
6-18. Printed Wiring Board – CD Section (New Type) – ........... 35
6-19. Schematic Diagram – CD Section (New Type) – .............. 36
6-20. Printed Wiring Boards – Main Section (New Type) – ...... 37
6-21. Schematic Diagram – Main Section (1/4) (New Type) – .. 38
6-22. Schematic Diagram – Main Section (2/4) (New Type) – .. 39
6-23. Schematic Diagram – Main Section (3/4) (New Type) – .. 40
6-24. Schematic Diagram – Main Section (4/4) (New Type) – .. 41
6-25. Printed Wiring Boards – Control Section (New Type) – ... 42
6-26. Schematic Diagrams – Control Section (New Type) – ..... 43
6-27. Printed Wiring Boards – Power Supply Section (New Type) – .. 44
6-28. Schematic Diagrams – Power Supply Section (New Type) – .... 45
7. EXPLODED VIEWS
7-1.   Cabinet (Front) Section ..................................................... 48
7-2.   Cabinet (Rear) Section ...................................................... 49
7-3.   Cabinet (Upper) Section .................................................... 50
7-4.   Tape Mechanism Section-1 ............................................... 52
7-5.   Tape Mechanism Section-2 ............................................... 53
7-6.   Optical Pick-up Section .................................................... 54
8. ELECTRICAL PARTS LIST
......................................... 55
CFD-S26
To Exposed Metal
Parts on Set
0.15µF
1.5k
AC
voltmeter
(0.75V)
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
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 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.
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)
4
CFD-S26
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
LASER  DIODE  AND  FOCUS  SEARCH  OPERATION
CHECK
1. Turn ON the POWER button and press FUNCTION button to
CD position.
2. Open the lid (CD).
3. Turn on S801 with screwdriver, etc. as following figure.
4. Press the CD  N X  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.
S801
– MAIN BOARD (component side) –
MAIN Board Part No.
Former type : 1-679-963-12
New type     : 1-679-963-14
NOTE ON PERFORMING SERVICE AND INSPECTION
The main, CD, control (1), control (2), control (3), battery terminal (1), battery terminal (2), power (1) and power (2) board have two types,
former type and new type.
When performing service and inspection, check the part number on the main, CD, control (1), control (2), control (3), battery terminal (1),
battery terminal (2), power (1) and power (2) board.
5
CFD-S26
CONTROL (1) Board Part No.
Former type : 1-679-966-12
New type     : 1-679-966-14
– CONTROL (1) BOARD (component side) –
– CD BOARD (component side) –
CD Board Part No.
Former type : 1-680-943-11
New type     : 1-680-943-13
– CONTROL (2) BOARD (component side) –
CONTROL (2) Board Part No.
Former type : 1-679-967-12
New type     : 1-679-967-14
– CONTROL (3) BOARD (component side) –
CONTROL (3) Board Part No.
Former type : 1-679-968-12
New type     : 1-679-968-14

Download Sony CFD-S26 Service Manual (Repair Manual)

Here you can view online or download Sony CFD-S26 Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sony CFD-S26 Audio. Information contained in Sony CFD-S26 service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).