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2008E05-1

© 

2008.05

Model Name Using Similar Mechanism

HCD-HDX265

DVD Mechanism Type

CDM81C-DVBU101

Optical Pick-up Block Name

KHM-310CAB or 
KHM-313CAB

•  HCD-HDX275 is the amplifier section, super 

audio CD/DVD system, tuner section and 
video section in DAV-HDX275.

•  HCD-HDX277WC is the amplifier section, 

super audio CD/DVD system, tuner section 
and video section in DAV-HDX277WC.

• HCD-HDX279W is the amplifier section, 

super audio CD/DVD system, tuner section 
and video section in DAV-HDX279W.

•  HCD-HDX475 is the amplifier section, super 

audio CD/DVD system, tuner section and 
video section in DAV-HDX475.

•  HCD-HDX576WF is the amplifier section, 

super audio CD/DVD system, tuner section 
and video section in DAV-HDX576WF.

•  HCD-HDX675 is the amplifier section, super 

audio CD/DVD system, tuner section and 
video section in DAV-HDX675.

Photo: HCD-HDX275

– Continued on next page –

This product incorporates copyright protection technology that is 
protected by U.S. patents and other intellectual property rights. 
Use of this copyright protection technology must be authorized by 
Macrovision, and is intended for home and other limited viewing 
uses only unless otherwise authorized by Macrovision. Reverse 
engineering or disassembly is prohibited.

This system incorporates with Dolby* Digital and Dolby Pro Log-
ic (II) adaptive matrix surround decoder and the DTS** Digital 
Surround System.

*  Manufactured under license from Dolby Laboratories.
 

“Dolby”, “Pro Logic”, and the double-D symbol are trade-
marks of Dolby Laboratories.

**  Manufactured under license from DTS, Inc.
 

“DTS” and “DTS Digital Surround” are registered trademarks 
of DTS, Inc.

This system incorporates High-Defi nition Multimedia Interface 
(HDMITM) technology.
HDMI, the HDMI logo and High-Defi nition Multimedia Interface 
are trademarks or registered trademarks of HDMI Licensing LLC.

“BRAVIA” and 

 are trademarks of Sony Corpora-

tion.

“S-AIR” and its logo are trademarks of Sony Corporation.

AUDIO POWER SPECIFICATIONS
for the US model
POWER OUTPUT AND TOTAL HARMONIC 
DISTORTION:
 

With 3 ohms loads, both channels 
driven, from 180 - 20,000 Hz; rated 
84 watts per channel minimum 
RMS power, with no more than 
0.7% total harmonic distortion from 
250 milli watts to rated output.

Amplifi er Section (EXCEPT HCD-HDX279W/HDX576WF)
Surround mode (reference)   RMS output power
 

FL/FR/C/SL/SR*: 143 watts (per 
channel at 3 ohms, 1 kHz, 10% 
THD)

 

Subwoofer*: 285 watts (at 1.5 
ohms, 80 Hz, 10% THD)

Amplifi er Section (HCD-HDX279W/HDX576WF)
Surround mode (reference)  RMS output power
 

FL/FR/C*: 143 watts (per channel 
at 3 ohms, 1 kHz, 10% THD)

 

Subwoofer*: 285 watts (at 1.5 
ohms, 80 Hz, 10% THD)

*  Depending on the decoding mode settings and the source, 

there may be no sound output.

Inputs (Analog)
TV/VIDEO (AUDIO IN) 

(EXCEPT HCD-HDX576WF)

 

Sensitivity: 450/250 mV

TV (AUDIO IN) 

(HCD-HDX576WF)

 

Sensitivity: 450/250 mV

SAT/CABLE (AUDIO IN)  (HCD-HDX576WF)
 

Sensitivity: 450/250 mV

AUDIO IN 

Sensitivity: 250/125 mV

Inputs (Digital)
TV/VIDEO (COAXIAL IN/OPTICAL IN) (EXCEPT HCD-
HDX576WF) Impedance: 

75 

ohms/-

TV (COAXIAL IN/OPTICAL IN) (HCD-HDX576WF)
 

Impedance: 75 ohms/-

Outputs (Analog)
Phones 

Accepts low- and high-impedance 
headphones.

Super Audio CD/DVD System
Laser Semiconductor 

laser

 (Super 

Audio 

CD/DVD: 

λ = 650 

nm)

 (CD: 

λ = 790 nm)

 

Emission duration: continuous

Signalformat system 

NTSC

Tuner Section
System 

PLL quartz-locked digital synthe-
sizer

FM tuner section
Tuning range
North American models: 

87.5 MHz - 108.0 MHz (100 kHz 
step)

Other models: 

87.5 MHz - 108.0 MHz (50 kHz 
step)

Antenna (aerial) 

FM wire antenna (aerial)

Antenna (aerial) terminals 

75 ohms, unbalanced

Intermediate frequency 

10.7 MHz

AM tuner section
Tuning range
North American, Mexican, and Latin American 
 models:
 

530kHz - 1,710kHz (with the 
interval set at 10kHz)

 

531kHz - 1,710kHz (with the 
interval set at 9kHz)

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.

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” 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 2 V AC range are suitable.  (See 
Fig. A)

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 

LES  COMPOSANTS  IDENTIFIÉS  PAR  UNE  MARQUE  0 SUR  
LES  DIAGRAMMES  SCHÉMATIQUES  ET  LA  LISTE  DES  
PIÈCES  SONT  CRITIQUES  POUR  LA  SÉCURITÉ  DE  FONC-
TIONNEMENT.  NE  REMPLACER  CES  COM-  POSANTS  QUE  
PAR  DES  PIÈCES  SONY  DONT  LES  NUMÉROS  SONT  DON-
NÉS  DANS  CE  MANUEL  OU  DANS  LES  SUPPLÉMENTS  
PUBLIÉS  PAR  SONY.

CAUTION
Use of controls or adjustments or performance of procedures other than 
those specifi ed herein may result in hazardous radiation exposure.

European, CIS and Middle Eastern models:
 

531kHz - 1,602 kHz (with the interval 
set at 9 kHz)

Australian and New Zealand models:
 

531kHz - 1,710 kHz (with the interval 
set at 9 kHz)

 

530kHz - 1,710 kHz (with the interval 
set at 10 kHz)

Other models: 

531kHz - 1,602 kHz (with the interval 
set at 9 kHz)

 

530kHz - 1,610 kHz (with the interval 
set at 10 kHz)

Antenna (aerial) 

AM loop antenna (aerial)

Intermediate frequency 

450 kHz

Video Section
Outputs VIDEO: 

1 

Vp-p 

75 

ohms

 COMPONENT:
 

Y: 1 Vp-p 75ohms

 

P

B

/C

B

, P

R

/C

R

: 0.7Vp-p 

 75 

ohms

 

HDMI OUT: Type A (19 pin)

General
Power requirements
North American models: 

120 V AC, 60 Hz

Other models: 

220 V - 240 V AC, 50/60 Hz

Power consumption
HCD-HDX275/HDX277WC/HDX475/HDX675
  

On: 

165 

W

 

Standby: 0.3 W (at the

 

Power Saving mode)

HCD-HDX279W/HDX576WF
 On: 

125 

W

 

Standby: 0.3 W (at the

 

Power Saving mode)

Output voltage (DIGITAL MEDIA PORT)
 DC 

5 

V

Output current (DIGITAL MEDIA PORT)
 700 

mA

Dimensions (approx.) 

430 mm × 85 mm × 420

 

mm (17 in × 3 

3

/

8

 in ×

 16 

5

/

8

 in) (w/h/d) incl.

 projecting 

parts

Mass (approx.) 

5.2 kg (11 lb 8 oz)

Design and specifi cations are subject to change without notice.

When the self-diagnosis function is activated to
prevent the system from malfunctioning, a 5-
character service number (e.g., C 13 50) with a
combination of a letter and 4 digits appears on
the TV screen or front panel display. In this case,
check the following table.

When you turn on the system, the version
number [VER.X.XX] (X is a number) may
appear on the TV screen. Although this is not a
malfunction and for Sony service use only,
normal system operation will not be possible.
Turn off the system, and then turn on the system
again to operate.

C 13

The disc is dirty.
Clean the disc with a soft cloth.

C 31

The disc is not inserted correctly.

Restart the system, then re-insert

the disc correctly.

E XX

(XX is a
number)

To prevent a malfunction, the
system has performed the self-
diagnosis function.
Contact your nearest Sony

dealer or local authorized Sony
service facility and give the 5-
character service number.

Example: E 61 10

C:13:50

VER.X.XX

  .............................................   5

  ..................................................................   9

3-1. Disassembly 

Flow 

...........................................................  12

3-2. Case 

(DCR) 

.....................................................................  13

3-3.  Front Panel Block ...........................................................   13
3-4. POWER 

Board 

................................................................  14

3-5.  Back Panel Block (HDX275/HDX475/HDX675) ..........   14
3-6.  Back Panel Block 
 (HDX277WC/HDX279W/HDX576WF) 

.......................  

15

3-7.  SPEAKER Board, SERIPARA Board and 
 MAIN 

Board 

...................................................................  

15

3-8. Cover 

(CDM-DCR) 

........................................................  16

3-9.  DVD Mechanism Deck (CDM81C-DVBU101) .............   16
3-10. Tray (Main) Assy ............................................................   17
3-11. MOTOR Board ...............................................................  17
3-12.  Optical Pick-up Section ..................................................   18
3-13.  Optical Pick-up Block
 

(KHM-310CAB or KHM-313CAB) ...............................   18

3-14.  Gear (Sub Tray 1)/Gear (Sub Tray 2) .............................   19
3-15. Lever (Mode) ..................................................................   19
3-16. Stocker Block ..................................................................   20
3-17. Cam (Stocker) .................................................................   20
3-18.  Gear (Stocker 3) ..............................................................   21
3-19.  Rotary Encoder (MD) (S771) .........................................   21
3-20. Gear (BU1) .....................................................................   22

TEST  MODE 

 ............................................................   23

ADJUSTMENTS 

 ........................   27

6-1.  Block Diagram - RF SERVO/VIDEO Section - .............   28
6-2. Block 

Diagram 

 

- CHANGER/HDMI/DMPORT Section - ......................   29

6-3.  Block Diagram - TUNER/S-AIR Section - ....................   30
6-4.  Block Diagram - AMP Section - .....................................   31
6-5. Block 

Diagram 

 

- PANEL/POWER SUPPLY Section - ............................   32

6-6. Printed 

Wiring 

Board 

 

- MAIN Board (Component Side) - ................................   34

6-7. Printed 

Wiring 

Board 

 

- MAIN Board (Conductor Side) - ..................................   35

6-8.  Schematic Diagram - MAIN Board (1/12) - ...................   36
6-9.  Schematic Diagram - MAIN Board (2/12) - ...................   37
6-10.  Schematic Diagram - MAIN Board (3/12) - ...................   38
6-11.  Schematic Diagram - MAIN Board (4/12) - ...................   39
6-12.  Schematic Diagram - MAIN Board (5/12) - ...................   40
6-13.  Schematic Diagram - MAIN Board (6/12) - ...................   41
6-14.  Schematic Diagram - MAIN Board (7/12) - ...................   42
6-15.  Schematic Diagram - MAIN Board (8/12) - ...................   43
6-16.  Schematic Diagram - MAIN Board (9/12) - ...................   44
6-17.  Schematic Diagram - MAIN Board (10/12) - .................   45
6-18.  Schematic Diagram - MAIN Board (11/12) - .................   46
6-19.  Schematic Diagram - MAIN Board (12/12) - .................   47
6-20.  Printed Wiring Board - SERIPARA Board - ...................   47
6-21.  Schematic Diagram - SERIPARA Board - ......................   48
6-22.  Printed Wiring Board - S-AIR CON Board 
 (HDX275/HDX475/HDX675) 

- 

.....................................  

49

6-23.  Schematic Diagram - S-AIR CON Board 
 (HDX275/HDX475/HDX675) 

- 

.....................................  

49

6-24.  Printed Wiring Board - S-AIR INC Board 
 (HDX277WC/HDX279W/HDX576WF) 

- 

.....................  

50

6-25.  Schematic Diagram - S-AIR INC Board 
 (HDX277WC/HDX279W/HDX576WF) 

- 

.....................  

51

6-26. Printed Wiring Board 
 

- I/O Board (Component Side) - .....................................   52

6-27. Printed Wiring Board 
 

- I/O Board (Conductor Side) - .......................................   53

6-28.  Schematic Diagram - I/O Board - ...................................   54
6-29.  Printed Wiring Board - SPEAKER Board - ....................   55
6-30.  Schematic Diagram - SPEAKER Board - .......................   55
6-31.  Printed Wiring Boards - JACK-KEY Section - ..............   56
6-32.  Schematic Diagram - JACK-KEY Section - ...................   57
6-33.  Printed Wiring Boards - RELAY Section - .....................   58
6-34.  Schematic Diagram - RELAY Section - .........................   59
6-35.  Printed Wiring Board - FL Board - .................................   60
6-36.  Schematic Diagram - FL Board - ....................................   61
6-37.  Printed Wiring Board - POWER Board - ........................   62
6-38.  Schematic Diagram - POWER Board - ..........................   63

7-1. Case 

Section 

....................................................................  81

7-2.  Front Panel Section .........................................................   82
7-3. Chassis 

Section 

...............................................................  83

7-4.  DVD Mechanism Deck Section-1 
 (CDM81C-DVBU101) 

...................................................  

84

7-5.  DVD Mechanism Deck Section-2 
 (CDM81C-DVBU101) 

...................................................  

85

7-6.  DVD Mechanism Deck Section-3
 (CDM81C-DVBU101) 

...................................................  

86

7-7.  Optical Pick-up Section ..................................................   87

  ..............................   88