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2009B05-1

© 

2009.02

•  HCD-HDX285 is the amplifier, super audio 

CD/DVD, tuner and video section in DAV-
HDX285.

• HCD-HDX287WC is the amplifier, super 

audio CD/DVD, tuner and video section in 
DAV-HDX287WC.

•  HCD-HDX585 is the amplifier, super audio 

CD/DVD, tuner and video section in DAV-
HDX585.

• HCD-HDX587WC is the amplifier, super 

audio CD/DVD, tuner and video section in 
DAV-HDX587WC.

•  HCD-HDX589W is the amplifier, super audio 

CD/DVD, tuner and video section in DAV-
HDX589W.

•  HCD-HDX685 is the amplifier, super audio 

CD/DVD, tuner and video section in DAV-
HDX685.

•  HCD-HDX686W is the amplifier, super audio 

CD/DVD, tuner and video section in DAV-
HDX686W.

Photo: HCD-HDX285

Model Name Using Similar Mechanism

HCD-HDX275

DVD Mechanism Type

CDM81C-DVBU101

Optical Pick-up Block Name

KHM-310CAB or 
KHM-313CAB

– 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 Logic (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 trademarks of Dolby Labora-
tories.

**  Manufactured under license under U.S. Patent #’s: 5,451,942; 5,956,674; 

5,974,380; 5,978,762; 6,487,535 & other U.S. and worldwide patents issued 
& pending. DTS and DTS Digital Surround are registered trademarks and the 
DTS logos and Symbol are trademarks of DTS, Inc. © 1996-2008 DTS, Inc. 
All Rights Reserved.

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

“DVD-RW,” “DVD-R,” “DVD+RW,” “DVD+R,” “DVD VIDEO,” and the “CD” 
logos are trademarks.

“BRAVIA” is a trademark of Sony Corporation.

“PLAYSTATION” is a trademark of Sony Computer Entertainment Inc.

DivX

®

 is a video fi le compression technology, developed by DivX, Inc. (Except 

for North American models).

DivX, DivX Certifi ed, and associated logos are trademarks of DivX, Inc. and are 
used under license (Except for North American models).

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

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.

U.S. models:
Surround mode (reference)  RMS output power

FL/FR/C/SL/SR*: 144 watts 
(per channel at 3 ohms, 1 
kHz, 10% THD)
Subwoofer*: 280 watts (at 
1.5 ohms, 80 Hz, 10% 
THD)

Other models:
Stereo mode (rated)

108 W + 108 W (at 3 ohms,
1 kHz, 1% THD)

Surround mode (reference)  RMS output power

FL/FR/C/SL/SR*: 144 watts 
(per channel at 3 ohms, 1 
kHz, 10% THD)
Subwoofer*: 280 watts (at 
1.5 ohms, 80 Hz, 10% 
THD)

Inputs (Analog)
TV/VIDEO (AUDIO IN) Sensitivity: 450/250 mV
AUDIO IN

Sensitivity: 250/125 mV

Inputs (Digital)
TV/VIDEO (COAXIAL IN/OPTICAL IN)

Impedance: 75 ohms/-
Input Stream: Dolby
Digital 5.1ch/DTS 5.1ch/
Linear PCM 2ch 
(Sampling Frequency: less
than 48 kHz)

Outputs (Analog)
Phones

Accepts low- and high-
impedance headphones.

U.S. models:
Surround mode (reference) RMS output power

FL/FR/C*: 144 watts (per
channel at 3 ohms, 1 kHz,
10% THD)
Subwoofer*: 280 watts (at
1.5 ohms, 80 Hz, 10%
THD)

Other models:
Stereo mode (rated)

108 W + 108 W (at 3 ohms,
1 kHz, 1% THD)

Surround mode (reference) RMS output power

FL/FR/C*: 144 watts (per
channel at 3 ohms, 1 kHz,
10% THD)
Subwoofer*: 280 watts (at
1.5 ohms, 80 Hz, 10%
THD)

0  OR  DOTTED  LINE  

0  ON  THE  SCHEMATIC  DIAGRAMS  AND  IN  

0  SUR  

Laser Diode Properties

Emission Duration: 
Continuous
Laser Output: Less than
44.6

MW

* This output is the value measurement at a distance 

of 200mm from the objective lens surface on the 
Optical Pick-up Block with 7mm aperture.

Signal format system
North American models:

NTSC

Other models:

PAL/NTSC

System

PLL quartz-locked digital 
synthesizer

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 model: 

530 kHz - 1,710 kHz (with 
the interval set at 10 kHz)
531 kHz - 1,710 kHz (with 
the interval set at 9 kHz)

Middle Eastern model:

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

Other models:

531 kHz - 1,602 kHz (with
the interval set at 9 kHz)
530 kHz - 1,610 kHz (with
the interval set at 10 kHz)

Antenna (aerial)

AM loop antenna (aerial)

Intermediate frequency

450 kHz

Outputs

VIDEO: 1 Vp-p 75 ohms
COMPONENT:
Y: 1 Vp-p 75 ohms

P

B

/C

B

, P

R

/C

R

: 0.7 Vp-p

75 ohms

HDMI OUT: Type A (19 
pin)

Power requirements
North American models:  120 V AC, 60 Hz
Other models:

220 V - 240 V AC, 
50/60 Hz

Power 

HDX285/HDX287WC/HDX585/HDX587WC/HDX685

HDX589W/HDX686W

consumption

On: 160 W
Standby: 0.3 W (at the
Power Saving mode) 

Power consumption

On: 120 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

Di

HDX285/HDX585/HDX685

HDX287WC/HDX587W/HDX589W/HDX686W

mensions (approx.)

430 mm × 85 mm × 415 
mm (17 in × 3 

3

/

8 

in × 

16

3

/

8 

in) (w/h/d) incl. 

projecting parts

Ma

Design and specifications are subject to change
without notice.

ss (approx.)

5.2 kg (11 lb 8 oz)

Dimensions (approx.)

430 mm × 85 mm × 420
mm (17 in × 3

3

/

8

in ×

16

5

/

8

in) (w/h/d) incl.

projecting parts
430 mm × 85 mm × 450
mm (17 in × 3

3

/

8

in ×

17

3

/

4

in) (w/h/d) with the

wireless transceiver
inserted

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)

CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.

This appliance is
classified as a CLASS 1
LASER product. This
marking is located on the
rear exterior.

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

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 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.

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

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

3-1. Disassembly 

Flow 

...........................................................  11

3-2. Case 

(DCY) 

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

3-3.  S-AIR-CON Board (HDX285/HDX585/HDX685) ........   12
3-4.  S-AIR INCLUDE Board 
 (HDX287WC/HDX587WC/HDX589W/HDX686W) 

...  

13

3-5.  Front Panel Block ...........................................................   13
3-6. Cover 

(CDM-DCY) 

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

3-7.  DVD Mechanism Deck Block ........................................   14
3-8.  DVD Mechanism Deck (CDM81C-DVBU101) .............   15
3-9. SPEAKER 

Board 

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

3-10. MAIN Board ...................................................................   16
3-11. Tray (Main) Assy ............................................................   17
3-12. MOTOR Board ...............................................................   17
3-13. Base Unit .........................................................................   18
3-14.  Optical Pick-up Block
 

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

3-15.  Gear (Sub Tray 1)/Gear (Sub Tray 2) .............................   19
3-16. Lever (Mode) ..................................................................   19
3-17. Stocker Block ..................................................................   20
3-18. Cam (Stocker) .................................................................   20
3-19.  Gear (Stocker 3) ..............................................................   21
3-20.  Rotary Encoder (MD) (S771) .........................................   21
3-21. 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 (1/10) - ...................   36
6-9.  Schematic Diagram - MAIN Board (2/10) - ...................   37
6-10.  Schematic Diagram - MAIN Board (3/10) - ...................   38
6-11.  Schematic Diagram - MAIN Board (4/10) - ...................   39
6-12.  Schematic Diagram - MAIN Board (5/10) - ...................   40
6-13.  Schematic Diagram - MAIN Board (6/10) - ...................   41
6-14.  Schematic Diagram - MAIN Board (7/10) - ...................   42
6-15.  Schematic Diagram - MAIN Board (8/10) - ...................   43
6-16.  Schematic Diagram - MAIN Board (9/10) - ...................   44
6-17.  Schematic Diagram - MAIN Board (10/10) - .................   45
6-18.  Printed Wiring Boards - RELAY Section - .....................   46
6-19.  Schematic Diagram - RELAY Section - .........................   47
6-20.  Schematic Diagram - SERIPARA Board - ......................   48
6-21.  Printed Wiring Board - SERIPARA Board - ...................   49
6-22.  Schematic Diagram - S-AIR-CON Board 
 (HDX285/HDX585/HDX685) 

- 

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

49

6-23.  Schematic Diagram - S-AIR INCLUDE Board 
 (HDX287WC/HDX587WC/HDX589W/
 HDX686W) 

- 

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

50

6-24.  Printed Wiring Boards - S-AIR Section - .......................   51

6-25.  Printed Wiring Board - I/O Board - ................................   52
6-26.  Schematic Diagram - I/O Board - ...................................   53
6-27.  Printed Wiring Board - FL-JACK Board (Suffi x-11) - ...   54
6-28.  Printed Wiring Board - FL-JACK Board (Suffi x-12) - ...   54
6-29.  Schematic Diagram - FL-JACK Board - ........................   55
6-30.  Schematic Diagram - KEY/P-SW Boards - ....................   56
6-31.  Printed Wiring Boards - KEY/P-SW Boards - ................   57
6-32.  Printed Wiring Board - SPEAKER Board - ....................   58
6-33.  Schematic Diagram - SPEAKER Board - .......................   58
6-34.  Printed Wiring Board - POWER Board - ........................   60
6-35.  Schematic Diagram - POWER Board - ..........................   61

7-1. Case 

Section 

....................................................................  80

7-2.  Front Panel Section .........................................................   81
7-3.  Back Panel Section .........................................................   82
7-4.  MAIN/POWER Board Section .......................................   83
7-5.  DVD Mechanism Deck Section-1 
 (CDM81C-DVBU101) 

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

84

7-6.  DVD Mechanism Deck Section-2 
 (CDM81C-DVBU101) 

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

85

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

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

86

7-8.  Optical Pick-up Section ..................................................   87

  ..............................   88

Accessories are given in the last of the electrical parts list.

Note: Refer to the Servicing Notes “FL-JACK AND P-SW 

BOARDS DISCRIMINATION” (page 5) for how to distin-
guish Suffi x-11 and Suffi x-12.