SCD-C222ES - Sony Audio Service Manual (repair manual)

Model
SCD-C222ES
Pages
98
Size
6.62 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
scd-c222es.pdf
Date

View Sony SCD-C222ES Service Manual online

SERVICE MANUAL
SUPER AUDIO CD PLAYER
US Model
Canadian Model
SCD-C222ES
Ver. 1.1  2006.08
SPECIFICATIONS
Model Name Using Similar Mechanism
SCD-CE775
CD Mechanism Type
CDM59A-DVBU5A
Base Unit Name
DVBU5A
Optical Pick-up Block Name
KHM-230AAA
9-873-158-02
Sony Corporation
2006H05-1
Home Audio Division
© 2006.08
Published by Sony Techno Create Corporation
When a super audio CD is played
Playing frequency range
2 Hz to 100  kHz
Frequency response
2 Hz to 50 kHz (–3 dB)
Dynamic range
104 dB or more
Total harmonic distortion rate
0.0018 % or less
Wow and  flutter
Value of  measurable limit (
±0.001 %
W. PEAK) or less
When a CD is played
Frequency response
2 Hz to 20 kHz
Dynamic range
99 dB or more
Total harmonic distortion rate
0.0020 % or less
Wow and  flutter
Value of measurable limit (
±0.001 %
W. PEAK) or less
Output connector
Jack type Output  level
Load impedance
ANALOG OUT Phono
2 Vrms
Over 10 kilohms
jacks
(at 50  kilohms)
DIGITAL  (CD)
Square
–18 dBm
OUT OPTICAL* optical
output
connector
DIGITAL  (CD)
Coaxial
0.5 Vp-p
75 ohms
OUT COAXIAL* output
connector
PHONES
Stereo
10 mW
32 ohms
phone jack
*Output only the audio signals of the CD
Light emitting
wave length:
660 nm
(         )
General
Laser
Semiconductor laser
(SACD: 
λ = 650  nm)
(CD: 
λ = 780  nm)
Emission duration: continuous
Power requirements
120 V AC, 60 Hz
Power consumption
26 W
Dimensions (w/h/d)
430 
× 135 × 400 mm
(17 
× 4 1/4 × 15 3/4 in.)
incl. projecting parts
Mass (approx.)
7.5 kg (16 lbs 9 oz.)
Supplied accessories
• Audio connecting  cord
phono jack 
× 2 (Red and White) y  phono jack × 2 (Red
and White)  (2)
phono jack 
× 1 (Black) y  phono jack  × 1 (Black)  (2)
• Monaural (2P)  mini-plug cord (1) (Connecting cord for
CONTROL  A1  )
• Remote commander (remote) RM-SC500 (1)
• R6 (size-AA)  batteries (2)
 
 
 
and White)  (2)
 
 
 
 
 
Design and specifications are subject to change  without notice.
2
SCD-C222ES
TABLE  OF  CONTENTS
1.
SERVICING  NOTES
...............................................
4
2.
GENERAL
...................................................................
6
3.
DISASSEMBLY
3-1. Disassembly Flow ...........................................................
8
3-2. Case .................................................................................
9
3-3. Front Panel Section .........................................................
9
3-4. CD Mechanism Deck (CDM59A-DVBU5A) ................ 10
3-5. AUDIO Board ................................................................. 10
3-6. POWER Board ................................................................ 11
3-7. MAIN Board ................................................................... 11
3-8. Base Unit (DVBU5A) ..................................................... 12
3-9. Table Assy ....................................................................... 12
3-10. SENSOR Board ............................................................... 13
3-11. LOADING MOTOR Board ............................................ 13
4.
ASSEMBLY
................................................................. 14
5.
TEST  MODE
.............................................................. 15
6.
DIAGRAMS
6-1. Block Diagram  – RF/SERVO Section – ........................ 30
6-2. Block Diagram  – SERVO Section – .............................. 31
6-3. Block Diagram  – MAIN Section – ................................ 32
6-4. Block Diagram  – AUDIO Section – .............................. 33
6-5. Block Diagram  – DISPLAY/KEY CONTROL/
POWER SUPPLY Section – ........................................... 34
6-6. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 35
6-7. Printed Wiring Board  – RF Board – .............................. 36
6-8. Schematic Diagram  – RF Board – ................................. 37
6-9. Printed Wiring Boards
– MOTOR/SENSOR Section – ....................................... 38
6-10. Schematic Diagram  – MOTOR/SENSOR Section – .... 39
6-11. Printed Wiring Board
– MAIN Board (Component Side) – .............................. 40
6-12. Printed Wiring Board
– MAIN Board (Conductor Side) – ................................ 41
6-13. Schematic Diagram  – MAIN Board (1/5)  – ................. 42
6-14. Schematic Diagram  – MAIN Board (2/5) – .................. 43
6-15. Schematic Diagram  – MAIN Board (3/5) – .................. 44
6-16. Schematic Diagram  – MAIN Board (4/5) – .................. 45
6-17. Schematic Diagram  – MAIN Board (5/5) – .................. 46
6-18. Schematic Diagram
– AUDIO/HEADPHONE Boards – ................................ 47
6-19. Printed Wiring Board
– AUDIO Board (Component Side) – ............................ 48
6-20. Printed Wiring Boards  – AUDIO (Conductor Side)/
HEADPHONE Boards – ................................................. 49
6-21. Printed Wiring Boards
– DISPLAY/KEY/LED/RM Boards – ............................ 50
6-22. Schematic Diagram
– DISPLAY/KEY/LED/RM Boards – ............................ 51
6-23. Printed Wiring Boards  – POWER/REG Boards – ......... 52
6-24. Printed Wiring Boards  – POWER SW/PT Boards – ..... 53
6-25. Schematic Diagram
– POWER/POWER SW/PT/REG Boards – ................... 54
6-26. IC Pin Function Description ........................................... 63
7.
EXPLODED  VIEWS
7-1. Case Section .................................................................... 79
7-2. Front Panel Section ......................................................... 80
7-3. Chassis Section ............................................................... 81
7-4. CD Mechanism Deck Section-1
(CDM59A-DVBU5A) ..................................................... 82
7-5. CD Mechanism Deck Section-2
(CDM59A-DVBU5A) ..................................................... 83
7-6. Base Unit Section (DVBU5A) ........................................ 84
8.
ELECTRICAL  PARTS  LIST
............................... 85
3
SCD-C222ES
This label is located on the LEFT exterior.
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.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C dur-
ing 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.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
SAFETY  CHECK-OUT
After correcting the original service problem, perform the follow-
ing 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” indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are suit-
able.  (See Fig. A)
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
0.15 
µ
F
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
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  COM-
POSANTS  QUE  PAR  DES  PIÈCES  SONY  DONT  LES
NUMÉROS  SONT  DONNÉS  DANS  CE  MANUEL  OU
DANS  LES  SUPPLÉMENTS  PUBLIÉS  PAR  SONY.
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  PUB-
LISHED  BY  SONY.
4
SCD-C222ES
The laser diode in the optical pick-up block may suffer electro-
static break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down 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 emis-
sion, observe from more than 30 cm away from the objective lens.
LASER  DIODE  AND  FOCUS  SEARCH  OPERATION
CHECK
Carry out the “S curve check” in “CD section adjustment” and
check that the S curve waveforms is output three times.
CLEANING OF OPTICAL PICK-UP LENS
In cleaning the lens of optical pick-up, use the air blower.
Never use a cotton swab for cleaning the lens of optical pick-up,
which otherwise causes a trouble.
CHECKING  SIGNALS  OF  CD  SECTION
Efficiency to check each signal of CD section is increased when
the test points on the MAIN board are used.
Refer to 5-8. WAVEFORMS CHECK (page 27)
NOTES  ON  HANDLING  THE  OPTICAL  PICK-UP
BLOCK  OR  BASE  UNIT
SECTION  1
SERVICING  NOTES
table
tapering driver
*
To close the disc table, turn the tapering 
driver in the reverse direction (to IN direction).
HOW  TO  OPEN  THE  DISC  TABLE  WHEN  POWER
SWITCH  TURNS  OFF
Insert a tapering driver into the aperture of the unit bottom, and
turn it in the direction of the arrow (to OUT direction).

Download Sony SCD-C222ES Service Manual (Repair Manual)

Here you can view online and download Sony SCD-C222ES Service Manual in PDF. SCD-C222ES service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony SCD-C222ES 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.