Sony HCD-HDX275, HCD-HDX277WC, HCD-HDX279W, HCD-HDX475, HCD-HDX576WF Service Manual

HCD-HDX275/HDX277WC/HDX279W/

HDX475/HDX576WF/HDX675

SERVICE MANUAL

Ver. 1.0 2008.02

Photo: HCD-HDX275

• 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.

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 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 Corpora­tion.

“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

Amplifi er Section (EXCEPT HCD-HDX279W/HDX576WF)

Surround mode (reference) RMS output power
FL/FR/C/SL/SR*: 143 watts (per

Subwoofer*: 285 watts (at 1.5

Amplifi er Section (HCD-HDX279W/HDX576WF)

Surround mode (reference) RMS output power
FL/FR/C*: 143 watts (per channel

Subwoofer*: 285 watts (at 1.5

* 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

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.

channel at 3 ohms, 1 kHz, 10%
THD)

ohms, 80 Hz, 10% THD)

at 3 ohms, 1 kHz, 10% THD)

ohms, 80 Hz, 10% THD)

US Model

HCD-HDX275/HDX277WC/

HDX279W/HDX576WF

Canadian Model

HCD-HDX475/HDX675

E Model

Australian Model

HCD-HDX275

Model Name Using Similar Mechanism HCD-HDX265

DVD Mechanism Type CDM81C-DVBU101

Optical Pick-up Block Name

SPECIFICATIONS

Inputs (Digital)
TV/VIDEO (COAXIAL IN/OPTICAL IN) (EXCEPT HCD­HDX576WF) Impedance: 75 ohms/­TV (COAXIAL IN/OPTICAL IN) (HCD-HDX576WF)
Impedance: 75 ohms/­Outputs (Analog)
Phones Accepts low- and high-impedance

Super Audio CD/DVD System

Laser Semiconductor laser
(Super Audio CD/DVD: λ = 650

(CD: λ = 790 nm)
Emission duration: continuous
Signalformat system NTSC

Tuner Section

System PLL quartz-locked digital synthe-

FM tuner section
Tuning range
North American models: 87.5 MHz - 108.0 MHz (100 kHz

Other models: 87.5 MHz - 108.0 MHz (50 kHz

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

531kHz - 1,710kHz (with the

KHM-310CAB or
KHM-313CAB

headphones.

nm)

sizer

step)

step)

interval set at 10kHz)

interval set at 9kHz)

– Continued on next page –

9-887-987-01

2008B05-1

2008.02

©

DVD RECEIVER

Sony Corporation

Audio Business Group
Published by Sony Techno Create Corporation

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

Australian and New Zealand models:
531kHz - 1,710 kHz (with the interval

530kHz - 1,710 kHz (with the interval

Other models: 531kHz - 1,602 kHz (with the interval

530kHz - 1,610 kHz (with the interval

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
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
projecting parts
Mass (approx.) 5.2 kg (11 lb 8 oz)

Design and specifi cations are subject to change without notice.

set at 9 kHz)

set at 10 kHz)

set at 9 kHz)

set at 10 kHz)

B/CB, PR/CR: 0.7Vp-p

5

/8 in) (w/h/d) incl.

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be dam­aged by heat.

CAUTION

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

SAFETY CHECK-OUT

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

SAFETY-RELATED COMPONET 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.

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.

To Exposed Metal
Parts on Set

AC

1.5 kΩ0.15 μF

voltmeter
(0.75 V)

Earth Ground

Fig. A. Using an AC voltmeter to check AC leakage.

2

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

SELF DIAGNOSIS FUNCTION

(When letters/numbers appear in the
display)

When the self-diagnosis function is activated to
prevent the system from malfunctioning, a 5­character 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.

C:13:50

First 3
characters of
the service
number

C13 Thediscisdirty.

C 31 The disc is not inserted correctly.

EXX

(XX is a
number)

Cause and/or corrective action

Clean the disc with a soft cloth.

Restart the system,then re-insert

the disc correctly.

To prevent a malfunction, the
system has performed the self­diagnosis function.

Contact your nearest Sony

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

Example: E 61 10

When displaying the version
number on the TV screen

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.

VER.X.XX

3

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

TABLE OF CONTENTS

1. SERVICING NOTES ............................................. 5

2. GENERAL .................................................................. 9

3. DISASSEMBLY

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

4. TEST MODE ............................................................ 23

5. ELECTRICAL ADJUSTMENTS ........................ 27

6. DIAGRAMS

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. EXPLODED VIEWS

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

8. ELECTRICAL PARTS LIST .............................. 88

4

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

SECTION 1

SERVICING NOTES

NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostat­ic 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 fl exible 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 refl ective surface by the objective lens in the optical
pickup block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.

UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the lead­free 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 fl ow)

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.

NOTE OF REPLACING THE IC1103 ON THE MAIN
BOARD

IC1103 on the MAIN board cannot exchange with single. When
IC1103 on the MAIN board is damaged, exchange the entire
mounted board.

MODEL IDENTIFICATION

ANTENNA

SPEAKER

FRONT R FRONT L SUR R SUR L

SPEAKER

CENTER SUBWOOFER

TV/VIDEO

DIGITAL IN

COAXIAL OPTICAL

HDMI OUT

DMPORT

DC5V

0.7A MAX

Model Part No.

HDX576WF

HDX277WC

HDX675

HDX275: US model

HDX275: Australian model

HDX275: 240V AC area in E model

HDX475

HDX279W

3-278-578-3[]

3-278-578-4[]

3-278-578-5[]

3-278-578-7[]

3-278-578-8[]

3-278-579-0[]

3-278-579-3[]

3-278-579-4[]

EZW-T100

FM

COMPONENT VIDEO OUT

B/CB PR/CR AUDIO INYRL

P

COAXIAL 75

TV/VIDEO

VIDEO
OUT

PART No.

AM

RELEASING THE TRAY LOCK

The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.

Releasing Procedure:

1. Press the [

] button to turn on the system.

?/1

2. Press the [FUNCTION] button repeatedly to select “DVD”.

3. While pressing the [

] button, press the [A] button until “UN-

s

LOCKED” displayed on the fl uorescent indicator tube (around
5 seconds).

Note: When “LOCKED” is displayed, the tray lock is not released by

turning power on/off with the [?/1] button.

RELEASING THE DEMO PLAY LOCK

Releasing Procedure:

1. Press the [

] button to turn on the system.

?/1

2. Press the [FUNCTION] button repeatedly to select “DVD”.

3. While pressing the [

] button, press the [H] button until

s

“DEMO OFF” displayed on the fl uorescent indicator tube
(around 5 seconds).

Note: When “DEMO ON” is displayed, the set is not possible to turn off

the system.

5

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

Playable Discs

2)

EG image files must conform to the DCF image file format.(DCF “Design rule for Camera File system”: Image

Type Disc logo Characteristics Icon

DVD VIDEO • DVD VIDEO

VR (Video
Recording) mode

Super Audio CD • Super Audio CD

VIDEO CD • VIDEO CD (Ver. 1.1 and 2.0 discs)

CD • Audio CD

DATA CD – • CD-R/CD-RW/CD-ROM in

DATA DVD – • DVD-ROM/DVD-R/DVD-RW/

1)

MP3 (MPEG1 Audio Layer 3) is a standard format defined by ISO/MPEG which compresses audiodata. MP3 files
must be in MPEG1 Audio Layer 3 format.

• DVD-R/DVD-RW in DVD
VIDEO format or video mode

• DVD+R/DVD+RW in DVD
VIDEO format

• DVD-R/DVD-RW in VR (Video
Recording) mode (except for
DVD-R DL)

• Super VCD

• CD-R/CD-RW/CD-ROM in video
CD format or Super VCD format

• CD-R/CD-RW in audio CD format

DATA CD format, containing MP3

1)

file

s

and JPEG image files2), and
DivX video files
conforming to ISO 9660
Level 2, or Joliet (extended format)

DVD+R/DVD+RW in DATA
DVD format, containing MP3
files
DivX video files

conforming to UDF (Universal
Disk Format)

3)4)5)

, and

6)

Level 1/

1)

and JPEG image files2), and

3)4)5)

, and

JP
standards for digital cameras regulated by Japan Electroni cs and Information Technology Industries Association
(JEITA).)

3)

Except for United Kingdom and North American models.

4)

DivX® is a video file compression technology, developed by DivX, Inc.

5)

DivX, DivX Certified, and associated logos are trademarks of DivX, Inc. and are used under license.

6)

A logical format of files and folders on CD-ROMs, defined by ISO (International Organization for
Standardization).

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

Example of discs that the system cannot play

The system cannot play the following discs:

• CD-ROM/CD-R/CD-RW other than those recorded in the formats listed

• CD-ROM recorded in PHOTO CD format

• Data part of CD-Extra

• CD Graphics disc

• DVD Audio

• DATA

DVD that does not contain MP3 files or JPEG image files, or DivX video files*

* Except for United Kingdom and North American models.

• DVD-RAM

Also, the system cannot play the following discs:

• A DVD VIDEO with a differen t region code

• A disc th at has a non-standard shape (e.g., card, heart)

• A disc with paper or stickers on it

• A disc that has the adhesive of cellophane tape or a sticker still left on it

Note about CD-R/CD-RW/DVD-R/DVD-RW/DVD+R/DVD+RW

In some cases, CD-R/CD-RW/DVD-R/DVD-RW/DVD+R/DVD+RW cannot be played on this system
due to the recording qualit y or physical condition of the disc, or the characteristics of the recording
device and authoring software.
The disc will not play if it has not been correctly finalized. For more information, refer to the operating
instructions for the recording device.
Note that some playback functions may not work with some DVD+RWs/DVD+Rs, even if they have
been correctly finalized. In this case, view the disc by normal playback. Also some DATA CDs/DATA
DVDs created in Packet Write format cannot be played.

Music discs encoded with copyright protection technologies

This product is designed to play back discs that conform to the Compact Disc (CD) standard.
Recently, various music di scs encoded with copyright protection technologies are marketed by some
record companies. Please be aware that among those discs, there are some that do not conform to the
CD standard and may not be playab le by this product.

Note on DualDiscs

A DualDisc is a two sided disc product which mates DVD recorded material on one side with digital
audio material on the other side. However, since the audio material side does not conform to the
Compact Disc (CD) standard , playback on this product is not guaranteed.

About Multi Session CD

• This system can play a Multi Session CD when an MP3 file is contained in the first session. Any
subsequent MP3 files recorded in later sessions can also be pl ayed back.

• This system can play a Multi Session CD when a JPEG image file is contained in the first session.
Any subsequent JPEG image files recorded in later sessions can also be played back.

• If MP3 files and JPEG image files in music CD format or video CD format are recorded in the first
session, only the first session will be played back.

Region code

Your system has a regio n code printed on the rear of the unit and will only play a DVD labe led with
the same region code.

A DVD VIDEO labeled will also play on this system .
If you try to play any other DVD VIDEO, the message [Playback prohibited by area limitations.] will
appear on the TV screen. Dependingon the DVD VIDEO, no region code indication may be give ne ven
though playing the DVD VIDEO is prohibited by area restrictions.

ALL

Note about playback operations of a DVD or VIDEO CD

Some playback operations on a DVD or VIDEO CD may be intentionally set by software producers.
Since this system will play a DVD or VIDEO CD according to the disc contents the software producers
designed, some playback features may not be available. Be sure to read the operating instructions
supplied with the DVD or VIDEO CD.

6

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

HOW TO IDENTIFY OPTICAL PICK-UP BLOCK

Note: There are two kinds of OPTICAL PICK-UP BLOCK in this set.
When replacing the OPTICAL PICK-UP BLOCK, make sure which
OPTICAL PICK-UP BLOCK it is following the “How to Identify”
in the figure shown below.

OPTICAL PICK-UP BLOCK

Printed of KHM-310CAB or KHM-313CAB.

HOW TO OPEN THE TRAY WHEN POWER SWITCH TURN OFF

Turn gear (BU1) from a hole at the bottom,
and pull out a tray.

gear (BU1)

tray

7

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

HARNESS SETTING

wire (flat type)

lead pin

Note 1: Check not touch the heatsink.

lead pin

Note 2: Check not touch the heatsink.

CN901

Note 4: Insert fully until

power cord

Note 5: Check not touch the chassis.

power cord

CN901

click the power cord.

Note 3: Twist the power cord
once counterclockwise
and connect to CN901.

8

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

SECTION 2

GENERAL

This section is extracted
from instruction manual.

Index to Parts and Control

For more information, refer to the pages indicated in parentheses.

Front panel

" / (on/standby)
# " (open/close)
$ Front panel display
% Play operation buttons
& (remote sensor)
' FUNCTION

Rear panel

HCD-HDX275/HDX475/HDX675

SPEAKER

CENTER SUBWOOFER

" SPEAKER jacks
# EZW-T100 slot

MCOAXIAL75Ω jack

$ F
% AM terminal
& TV/VIDEO (AUDIO IN R/L) jacks
' VIDEO OUT jack

TV/VIDEO

DIGITAL IN

COAXIAL OPTICAL

HDMI OUT

SPEAKER

FRONTR FRONT L SUR R SUR L

( VOLUME control
) PHONES jack
* AUDIO IN/A.CAL MIC jack
+ DISC 1-5 buttons/indicators
, Disc tray

Screws*

EZW-T100

DC5V

0.7A MAX

DMPORT

COMPONENTVIDEO OUT

P

B/CBPR/CR

TV/VIDEO

VIDEO

OUT

AUDIO IN LRY

( COMPONENT VIDEO OUT jacks
) DMPORT (DIGITAL MEDIA PORT) jack
* HDMI OUT jack
+ TV/VIDEO (DIGITAL IN COAXIAL/

OPTICAL) jacks

* CAUTION

Please do not remove the screws before
installing the EZW-T100.

FM

COAXIAL 75

ANTENNA

AM

9

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

Rear panel

HCD-HDX277WC

SPEAKER

SPEAKER

CENTER SUBWOOFER

TV/VIDEO

DIGITAL IN

COAXIAL OPTICAL

FRONTR FRONT L SUR R SUR L

HDMI OUT

HCD-HDX279W

SPEAKER

SPEAKER

CENTER SUBWOOFER

TV/VIDEO

DIGITAL IN

COAXIAL OPTICAL

FRONTR FRONT L

HDMI OUT

HCD-HDX576WF

SPEAKER

SPEAKER

CENTER SUBWOOFER

TV

DIGITAL IN

COAXIAL OPTICAL

" SPEAKER jacks
# EZW-RT10 slot
$ FM COAXIAL 75Ω jack
% AM terminal
& SAT/CABLE (AUDIO IN R/L) jacks

(HCD-HDX576WF only)

' TV/VIDEO (AUDIO IN R/L) jacks (HCD-

HDX277WC/HDX279W)
TV (AUDIO IN R/L) jacks (HCD­HDX576WF)

FRONTR FRONT L

HDMI OUT

EZW-RT10

DC5V

0.7A MAX

DC5V

0.7A MAX

DC5V

0.7A MAX

DMPORT

DMPORT

DMPORT

EZW-RT10

EZW-RT10

COMPONENTVIDEO OUT

B/CBPR/CR

P

COMPONENTVIDEO OUT

B/CBPR/CR

P

COMPONENTVIDEO OUT

B/CBPR/CR

P

TV/VIDEO

VIDEO

OUT

AUDIO IN LRY

TV/VIDEO

VIDEO

OUT

AUDIO IN LRY

TV

VIDEO

OUT

AUDIO IN LRY

( VIDEO OUT jack
) COMPONENT VIDEO OUT jacks
* DMPORT (DIGITAL MEDIA PORT) jack
+ HDMI OUT jack
, TV/VIDEO (DIGITAL IN COAXIAL/

OPTICAL) jacks (HCD-HDX277WC/
HDX279W)
TV (DIGITAL IN COAXIAL/OPTICAL)
jacks (HCD-HDX576WF)

ANTENNA

FM

COAXIAL 75

ANTENNA

FM

COAXIAL 75

ANTENNA

FM

COAXIAL 75

SAT/CABLE

AUDIO INRL

AM

AM

AM

10

Front panel display

About the indications in the front panel display

" Playing status
# Flashes when the sleep timer is set.
$ Displays system’s status such as

chapter, title, or track number, time
information, radio frequency, playing
status, decoding mode, etc.

% Lights up when a station is received.

(Radio only)

& Stereo/Monaural effect (Radio only)
' Lights up when the S-AIR transmitter

(not supplied) is inserted in the unit
and the system transmits the sound.

( Lights up when the HDMI OUT jack is

) Current surround format (Except for

* Lights up when the color system is set

+ Lights up when Super Audio CD/CD is

correctly connected to HDCP (High­bandwidth Digital Content Protection)
compliant device with HDMI or DVI
(Digital Visual Interface) input.

JPEG image file)

to NTSC. (Asian,Australian,andMiddle
Eastern models only)

loaded.

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

Remote control

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF

A–O P–Z

ANGLE 
AUDIO RI
CLEAR FT
D.TUNING XT

DISC SKIP
DISPLAY XB
DVD MENU XH
DVD TOP MENU RE
DYNAMIC BASS 

ENTER
FUNCTION +/– 
MENU XH
MUTING 
NIGHT XE
ONE-TOUCH PLAY FH

ALPHABETICAL ORDER BUTTON DESCRIPTIONS

PICTURE NAV I RH
PRESET +/– XK

2)

PROG +/–

XK

S-AIR MODE

FE

1)

XG

SLEEP RK
SOUND MODE 
SUBTITLE XT
SYSTEM MENU XG

THEATER/THEATRE
TOOLS XI
TUNING +/– 
TV XM

TV CH +/–
TV INPUT X
TV VOL +/– FG

VOLUME +/–

3)



5)

XK



Number buttons RG

</ (on/standby) 
TV </ (on/standby) RM
$/9/Y/D/



/ XK
N/. 

4)

RL

STEP / 
SLOW / 

)(play) F
Y (stop) XL
9 (pause) RB

DISPLAY

0 RETURN FB

2)

-/--

5)

FT
FT

RT

REPLAY/ADVANCE

6)

XI

1)

The ENTER button has the
same function as the
button. When you operate
the TV, theENTER button is
used for selecting a channel,
and the button isus edfo r
selecting menu i tems

2)

Except for North American
models.

3)

HCD-HDX275/HDX475
only.

4)

The button name differs
depending on the area.

5)

North American models
only.

6)

This button is available for
the “DVD” or “DMPORT”
function. Depending on the
DIGITAL MEDIA PORT
adapter, this button may not
work.

.

Remote control

HCD-HDX675

ANGLE 
AUDIO F
CC F
CLEAR FB
D.TUNING XT
DISC SKIP RI
DISPLAY FT
DVD MENU 
DVD TOP MENU XM
DYNAMIC BASS XB
ENTER* 

FAVORITES RH
FUNCTION +/– 
GUIDE XM
INPUT 

Z–ML–A

MENU XE
MUTING XH
NIGHT X
ONE-TOUCH PLAY FG
PICTURE NAV I RH
PRESET +/– 
S-AIR MODE RK
SLEEP FE
SOUND MODE +/– 
SUBTITLE XT
SYSTEM MENU 

THEATER RL
TOOLS 
TV RT
TV CH +/– 
TV VOL +/– RB
TUNING +/– XK
VOLUME +/– RB

Number buttons 
</ (on/standby) 
TV </ (on/standby) RM
$/9/Y/D/ RG

REPLAY/ADVANCE

XE

/ 
N/. XK

/ XK

)(play) 
Y (s

top) XG

e) XI

9 (paus

DISPLAY** XL

0 RETURN RE

FB

SNOITPIRCSEDNOTTUBREDROLACITEBAHPLA

* The ENTER button ha s the

same function as the
button. When you operate
the TV, the ENTER button
is used for selecting a
channel, and the button
is used for selecting menu
items.

** This button is available for

the “DVD” or “DMPORT”
function. Depending on the
DIGITAL MEDIA PORT
adapter, this button may not
work.

11

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

SECTION 3

DISASSEMBLY

• This set can be disassembled in the order shown below.

3-1. DISASSEMBLY FLOW

SET

3-2. CASE (DCR)
(Page 13)

3-3. FRONT PANEL BLOCK
(Page 13)

3-8. COVER (CDM-DCR)
(Page 16)

3-9. DVD MECHANISM DECK
(CDM81C-DVBU101)
(Page 16)

3-10. TRAY (MAIN) ASSY
(Page 17)

3-12. OPTICAL PICK-UP SECTION
(Page 18)

3-4. POWER BOARD
(Page 14)

3-5. BACK PANEL BLOCK
(HDX275/HDX475/HDX675)
(Page 14)

3-7. SPEAKER BOARD, SERIPARA BOARD AND
MAIN BOARD
(Page 15)

3-6. BACK PANEL BLOCK
(HDX277WC/HDX279W/HDX576WF)
(Page 15)

3-11. MOTOR BOARD
(Page 17)

3-13. OPTICAL PICK-UP BLOCK
(KHM-310CAB OR KHM-313CAB)
(Page 18)

3-14. GEAR (SUB TRAY 1)/
GEAR (SUB TRAY 2)
(Page 19)

12

3-16. STOCKER BLOCK
(Page 20)

3-17. CAM (STOCKER)
(Page 20)

3-18. GEAR (STOCKER 3)
(Page 21)

3-15. LEVER (MODE)
(Page 19)

3-19. ROTARY ENCODER (MD) (S771)
(Page 21)

3-20 . GEAR (BU1)
(Page 22)

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

Note: Follow the disassembly procedure in the numerical order given.

3-2. CASE (DCR)

two screws



(case 3 TP2)



case (DCR)



five screws



(BV3)



3-3. FRONT PANEL BLOCK

Turn gear (BU1) from a hole



at the bottom, and pull out a tray.

gear (BU1)

Open the tray.



screw (BV3)

R

connector



(CN412)

two screws



(case 3 TP2)

wire (flat type) (21 core)



(CN501)

connector



(CN3001)

RE

two claws



claw

RT

front panel block

loading panel (DCR)



four screws

RB

(BV3)

RT

R

claw

screw (BV3)

two screws



(PWH3 × 8)

shield plate (HP)



13

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

3-4. POWER BOARD

two screws





(PWH3 × 8)

POWER board



seven screws

(PWH3 × 8)

shield plate (HP)



three connectors



(CN904, CN906, CN908)

3-5. BACK PANEL BLOCK (HDX275/HDX475/HDX675)

screw (BV3)

RB

back panel block

RI

wire (flat type) (5 core)



(CN702)

wire (flat type) (9 core)



(CN606)

wire (flat type) (7 core)



(CN653)

screw (BV3)



terminal

R

power cord connector



(CN901)

three screws

RT

(BV3)

connector



(CN908)



(CN901)

five screws

RE

(BV3)

screw

RG

(B3 × 6)

wire (flat type) (17 core)



(CN4302)

wire (flat type) (17 core)



(CN651)

power cord connector

fan motor connector



(CN3000)

14

four claws

RH

power cord

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

3-6. BACK PANEL BLOCK (HDX277WC/HDX279W/HDX576WF)

wire (flat type) (5 core)



(CN702)

wire (flat type) (9 core)



(CN606)

wire (flat type) (7 core)



(CN653)

screw (BV3)



terminal

R

RI

screw (BV3)

RB

back panel block

three screws

RT

(BV3)

wire (flat type) (17 core)



(CN651)

connector



(CN908)

five screws

RE

(BV3)

screw

RG

(B3 × 6)



(CN3000)

wire (flat type) (17 core)



(CN4302)

power cord connector



(CN901)

power cord

four claws

RH

fan motor connector

3-7. SPEAKER BOARD, SERIPARA BOARD AND MAIN BOARD

two screws

RG

SERIPARA board



two connectors



(CN904, CN906)

wire (flat type) (21 core)



(CN651)

connector



(CN650)

(BV3)

two radiation sheets

RK

RH

(BVTP3 × 12)

heatsink (AMP)

RI

screw

seven screws

RL

(BV3)

MAIN board

RM

two connectors

R

(CN1201, CN3001)

RB

(BV3)

three screws

SPEAKER board



two screws



(BV3)

connector



(CN114: HDX275/HDX277WC/
HDX475/HDX675,
CN115: HDX279W/HDX576WF)

plate insulated (POW)

RT

wire (flat type) (21 core)



(CN501)

wire (flat type) (24 core)



(CN1101)

plate shield (POW-DCR)

RE

15

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

3-8. COVER (CDM-DCR)

Remove wire (flat type) (24 core)



from 2 ditches.

Remove lead wire



from 3 ditches.

cover (CDM-DCR)



lead wire

ditch



connector



(CN1201)

wire (flat type) (24 core)



(CN1101)

four screws



(BV3)

3-9. DVD MECHANISM DECK (CDM81C-DVBU101)

DVD mechanism deck



(CDM81C-DVBU101)



three screws



(BVTP3 × 10)

wire (flat type) (21 core)



(CN651)

16

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

3-10. TRAY (MAIN) ASSY



tray (main) assy



Remove the tray (main) assy
in the direction of the arrow.

two screws
(BTTP M2.6)

bracket (top)



two screws



(BTTP M2.6)

3-11. MOTOR BOARD

 screw
(BTTP M2.6)

 Remove two solders.

 motor (81) assy (BU U/D motor)

(M762 )

 bracket

 screw

(BTTP M2.6)

 MOTOR board

 Remove two solders.

 motor (81) assy (LD/ST motor)

(M761)

17

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

3-12. OPTICAL PICK-UP SECTION

 two floating screws
(PTPWH M2.6)

 optical pick-up section

 floating screw

(PTPWH M2.6)

3-13. OPTICAL PICK-UP BLOCK (KHM-310CAB OR KHM-313CAB)

 holder (310)

 insulator screw

R insulator

 insulator screw

 insulator

 base (310)



RT optical pick-up block

(KHM-310CAB or KHM-313CAB)

RB wire (flat type) (24 core)

 screw

(BTP2.6 × 8)

R insulator

 insulator screw

R insulator

 insulator screw

18

 three screws
(BTP2.6 × 8)

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

3-14. GEAR (SUB TRAY 1)/GEAR (SUB TRAY 2)

PRECAUTION DURING GEAR (SUB TRAY 1/2) INSTALLATION

Align the marks of the gears as shown in the illustration.

 three gears
(sub tray 1)

gear (sub tray 2)

gear (sub tray 1)

gear (sub tray 2)

 gear (sub tray 2)

 five screws

(PTPWH2.6 × 8)

 gear (sub tray 2)

3-15. LEVER (MODE)

Before re-assembling, align the lever (release)
and the lever (sub tray) with the lever (mode)
as shown in the illustration.

dowel dowel

lever (mode)

lever (release)

lever (sub tray)

When re-assembling, insert the lever (sub tray)
between the bosses of the shutter (tray).

 lever (sub tray)

 lever (release)

 floating screw

(PTPWH M2.6)

boss

boss

shutter (tray)

lever (sub tray)

 screw
(PWH2.6 × 8)

 shutter (tray)

 lever (mode)



Before re-assembling, slide the cam (BU)
in the direction of the arrow.

cam (BU)

19

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

3-16. STOCKER BLOCK

 stocker block

 Rotate the gear (SS3) in the

direction of the arrow.

3-17. CAM (STOCKER)

PRECAUTION DURING CAM (STOCKER) INSTALLATION

Before installing the cams (stocker), fix the gear (stocker 3) in
the manner so that the hole of the gear (stocker 3) should be
aligned with the hole of the chassis located beneath
the gear (stocker 3). Be sure to install the cams (stocker) in
such a way that the grooves of the cams (stocker) face
the direction of the arrows.

cam (stocker)

gear

(stocker 2)

gear (stocker 3)

cam (stocker)

gear

(stocker 2)

hole

gear

(stocker 2)

cam (stocker)

 floating screw
(PTPWH M2.6)

 hook

 screw

(PWH2.6 × 8)

 cam
(stocker)

 lever (SW)

 tension spring (SW)

 two screws

(PWH2.6 × 8)

 two cams
(stocker)

20

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

3-18. GEAR (STOCKER 3)

 step tapping screw
(PTPWH M2.6)

 gear (stocker 3)

PRECAUTION DURING GEAR (STOCKER 3) INSTALLATION

Be sure to align the rib of the gear (stocker 3) with the groove
of the rotary encoder.

groove

rib

3-19. ROTARY ENCODER (MD) (S771)

PRECAUTION DURING ROTARY ENCODER (MD) INSTALLATION

Slide the cam (BU) in the direction of the arrow so that the mark
of the gear (BU1) can be seen. Engage the gears while aligning
the mark of the gear (BU1) with the protruding part of the
rotary encoder.

rotary encoder (MD)

protruding part

rotary encoder
(ST U/D encoder)

three screws



(BTTP M2.6)



Remove the five solders.



two claws





(S771)

step tapping screw



(2 × 6 PWH)



gear (stocker 3)
(reverse-side)

bracket (encoder)

rotary encoder (MD)

cam (BU)

mark

gear (BU1)

– CD mechanism deck bottom view –

21

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

3-20. GEAR (BU1)

 belt (sub tray)

PRECAUTION DURING GEAR (BU2) INSTALLATION

Before re-assembling, slide the cam (BU) in the direction of
the arrow.
Assemble the gear (BU2) in such a manner that the groove
of the cam (BU) is aligned with the rib of the gear (BU2).

cam (BU)

rib

gear (BU2)

groove

 screw
(PWH2.6 × 8)

 screw
(PWH2.6 × 8)

 gear (BU2)

 screw

(PWH2.6 × 8)

 pulley (BU)

 gear (BU1)

– CD mechanism deck bottom view –

22

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

SECTION 4

TEST MODE

Note: Incorrect operations may be performed if the test mode is not

entered properly. In this case, press the [?/1] button to turn the
power off, and retry to enter the test mode.

COLD RESET

The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returning the
set to the customers.

Procedure:

1. Press the [?/1] button to turn the power on.

2. Press three buttons [s], [A] and [?/1] simultaneously.

3. When this button is operated, display as “COLD RESET” for
a while and all of the settings are reset.

PANEL TEST MODE

This mode is used to check the software version, FL, LED and
KEY.

2-1. Display Test Mode

Procedure 1:

1. Press the [?/1] button to turn the power on.

2. Press three buttons [S], [l] and [A] simultaneously.

3. When the display test mode is activated, all segments are
turned on.

4. To exit from this mode, press three buttons [

], [l] and [A]

S

simultaneously.

2-2. Version Test Mode

Procedure 1:

1. When the display test mode is activated, press the [l] button
and “DCR2” is displayed, the version test mode is activated.

2. Whenever the [

] button is pressed, the display changes in

l

order of “DCR2” (model name) → “NA” (destination) → MC
→ SYS → UI → DVD → CDMA → CDMB → ST → TA →

DSP → TM → CLA → CEC → SAIR → “DCR2” (model
name).

Note: Model name/destination is different according to model.

3. Press the [L] button and the date of the software production
is displayed.

4. Press the [L] button again and the version is displayed.

5. To exit from this mode, press three buttons [S], [l] and [A]
simultaneously.

2-3. Key Test Mode

Procedure 1:

1. When the display test mode is activated, press the [

] button,

H

to select the key test mode.

2. To enter the KEY test mode, the fl uorescent indicator displays
“K0 V0”. Each time an another button is pressed, “KEY” value
increases. However, once a button is pressed, it is no longer
taken into account. When all keys are pressed correctly, “K13
V0” is displayed.

3. When the [VOLUME] dial is turned in the direction of (+),
“V0” is changed to “V1”, then ... “V9”.

When the [VOLUME] dial is turned in the direction of (–),

“V0” is changed to “V9”, then ... “V1”.

4. To exit from this mode, press three buttons [S], [l] and [A]
simultaneously.

Releasing Procedure :

1. Press the [

] button and the [A] button simultaneously for fi ve

s

seconds again.

2. The message “UNLOCKED” is displayed and the tray is un­locked.

Note: When “LOCKED” is displayed, the tray lock is not released by

turning power on/off with the [?/1] button.

DVD SHIP MODE

Use this mode when returning the set to the customer after repair.
Procedure:

1. Press the [

] button to turn the set on.

?/1

2. Press the [FUNCTION] button to set the function “DVD”.

3. Remove all discs, and then press two buttons [

] and [?/1]

H

simultaneously.

4. After a message “MECHA LOCK” h “UNPLAG” is dis­played on the fl uorescent indicator tube, pull out the AC plug.

5. To exit from this mode, press the [

] button to turn the set

?/1

on.

AM STEP CHANGE

A step of AM channels can be changed over between 9 kHz and
10 kHz.
Procedure:

1. Press the [?/1] button to turn the set ON.

2. Press the [FUNCTION] button to set the function “TUNER
AM”.

3. Press the [?/1] button to turn the set OFF.

4. Press two buttons [L] and [?/1] simultaneously, and the dis­play of fl uorescent indicator tube changes to “AM 9k STEP” or
“AM 10k STEP”, and thus the channel step is changed over.

PRODUCT OUT

This mode moves the optical pick-up to the position durable to vi­bration and clears all data including preset data stored in the RAM
to initial conditions. Use this mode when returning the set to the
customer after repair.

Procedure:

1. Press the [

] button to turn the power on.

?/1

2. Press the [FUNCTION] button to set the function “DVD”.

3. Remove all discs, and then press three buttons [

L

], [A] and

[?/1] simultaneously.

4. After the “STANDBY” blinking display fi nishes, the message
“MECHA LOCK” h “UNPLAG” is displayed on the fl uo-
rescent indicator tube disconnect the AC power plug, then the
ship mode is set.

DISC TRAY LOCK

The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.
Setting Procedure :

1. Press the [

] button to turn the set on.

?/1

2. Press the [FUNCTION] button to set DVD function.

3. Insert a disc.

4. Press the [

] button and the [A] button simultaneously for fi ve

s

seconds.

5. The message “LOCKED” is displayed and the tray is locked.

23

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

AUTOMATIC ACOUSTIC FIELD CALIBRATION MICRO­PHONE TEST MODE

Procedure:

1. Press the [?/1] button to turn the power on.

2. Press the [FUNCTION] button to set the function other than
“DVD”.

3. Insert ECM-AC2 supplied as an accessory into the AUDIO IN/
A.CAL MIC jack.

4. While pressing the [
the [VOLUME] dial in the direction of (+).

5. Confi rm that the following are shown on the display panel.
1 The JACK inserted/non-inserted detection display and the

STEREO/MONO detection display.

2 Presence of DIGITAL voice input to the microcomputer.
(OK: input, NG: no input)
3 The value of the MIC input to the microcomputer. (shouwn

“255h”)

* * * * * * * *
1 2 3

1 “NON” : Not detected
“ST” : STEREO
“MIN” : MONO

2 OK : input
NG : no input

3 0-255 (Changes in real time)

6. To exit this mode, press two buttons [
ously, turn the [VOLUME] dial in the direction of (+).

] and [A] buttons simultaneously, turn

S

] and [A] simultane-

S

3. Measure/Safety

Procedure:

1. Press the [DISPLAY] button on the remote commander.

2. The message “SAFETY” is displayed.

3. Press the [DISPLAY] button on the remote commander again.

4. The message “MEASURE” is displayed.

4. SWAP Mode

Procedure:

1. Press the [SOUND MODE] button on the remote commander.

2. The message “SWAP FULL” is displayed.

3. Whenever the [SOUND MODE] button is pressed, the display
changes in the following order.

“SWAP FULL” → “SWAP THRU” → “SWAP F2S” → “SWAP F2CW”

5. DCAC MIC Input Mode

Procedure:

1. Press the [D.BASS] button on the remote commander.

2. The message “D.C.A.C. MIC” is displayed.

3. Press the [D.BASS] button on the remote commander.

4. The message “FUNC INPUT” is displayed.

Note: The segments of the frame of SPEAKER FORMATION are blink-

ing while test mode.

PROTECTION FACTOR (SD DETECTION/DC DETEC­TION) IDENTIFICATION TEST MODE

When an error is detected, the fl orescent indicator tube alternately
displays
“PROTECTOR” h “PUSH POWER”.
Press the [?/1] button.
* Buttons other than the [
“STANDBY” blinks three times on the fl orescent indicator tube.

] button are invalid.

?/1

DEMO PLAY OUT

It is a mode to release the demonstration reproduct by the dedi­cated demonstration disc.

Procedure:

1. During playback the DEMO disc, press the [s] and [H] but­tons for fi ve seconds simultaneously.

2. The message “DEMO OFF” is displayed, a mode to reproduct
the demonstration is released.

AMP TEST MODE

1. Mode In, Mode Out

Procedure:

1. Press the [?/1] button to turn the power on.

2. Press three buttons [l], [H] and [L] simultaneously.

3. The message “MEASURE” is displayed.

4. To exit from this mode, press the [?/1] button to turn the set
off, the message “COLD RESET” is displayed.

2. Volume Test

Procedure:

1. When the [VOLUME] control is turned in the direction of (+),
the message “VOLUME MAX” is displayed.

2. When the [VOLUME] control is turned in the direction of (–),
the message “VOLUME MIN” is displayed

3. Press the [MUTING] button on the remote commander.

4. The message “VOL N” is displayed and [VOLUME] control is
normal.

5. Press the [MUTING] button on the remote commander again.

6. The message “VOL M/N” is displayed and [VOLUME] con­trol is “MAX” and “MIN”.

The protection release state (POWER OFF) is established.
(No fl orescent indicator tube display)
Press the [?/1] button twice.

The power to the system turns on, and the normal operation is es­tablished. (Restore)

During the protection state:

1. If the AC plug is connected or disconnected during the protec­tion state, the protection state is released, and the normal op­eration is established. (The protection state is not maintained)

2. The protection factor is displayed by pressing the [FUNC­TION], [A] and [L] buttons at the same time during the
protection state. (during the “PROTECTOR” h “PUSH
POWER” display)

When SD is detected: Repeats
“SD DETECT” h “PROTECTOR”.
When DC is detected: Repeats
“DC DETECT” h “PROTECTOR”.

SD detection:

When the “L” output from the SD (shutdown) port on the

S-MASTER POWER Driver Shutdown and voltage descent
(15V or less) of 30V power supply (PVDD) are detected.

DC detection:

When the “L” output from the power/speaker error detection

circuit (DC detection port) is detected for two seconds continu­ally, the power system other than that of the fl orescent indica-
tor tube is turned off, and the protection state is established.

24

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

DIGITAL MEDIA PORT TEST
Procedure:

1. Connect the DMPORT CHECK JIG (Part No.: J-2501-309-A)
with the terminal DMPORT.

2. Press the [?/1] button to turn the power on.

3. Confi rm that both LEDs of the DMPORT confi rmation JIG
lights. (Confi rmation the power supply line.)

4. Set the [FUNCTION] button with “DMPORT” on this model.

5. Press the [

], [FUNCTION]. buttons and turn the [VOLUME]

s

control in the direction of (+) simultaneously, the DMPORT
test mode is activated.

6. It is confi rmed that “DMPORT OK” is displayed on this set
display. (Confi rmation of communication line)

7. To a pinjack of the DMPORT confi rmation JIG input informa-
tion relevant to audio signal (sine-wave 1.0Vrms) and compos­ite video signal (white 100% 1.0 Vp-p, color bar, etc.)

8. Confi rm the output of speakers and monitor TV. (Confi rmation
of analog signal)

9. To exit from this mode, press the [s], [FUNCTION]. buttons
and turn the [VOLUME] control in the direction of (+).

set

IO board

J402

TV

monitor

FL/FR

speaker

color pattern

generator

AF oscillator

J001

MAIN board

CN204

DMPORT

check jig

(Part No.:

J-2501-309-A)

SPEAKER board

TB100 (HDX275/HDX277WC/

HDX475/HDX675)

TB101 (HDX279W/HDX576WF)

DVD SECTION

1. DVD SERVICE MODE GENERAL DESCRIPTION

This mode let you make diagnosis and adjustment easily by using
the remote commander and the TV screen. The instructions, diag­nostic results, etc. are given on the on-screen display.
Be sure to execute the IOP measurement when a base unit is re­placed.

2. ENTERING DVD SERVICE MODE

Procedure:

1. Press the [?/1] button to turn on the system.

2. Press the [FUNCTION] button repeatedly to select the
“DVD”.

3. While pressing the [

] and [A] buttons simultaneously, turn

s

[VOLUME] dial in the direction of (+) with the DVD player in
power on.

4. The message “SERVICE IN” appears on the fl uorescent in-
dicator tube and top menu of the Remocon Diagnosis Menu
appears on the on-screen display on the TV screen as follows.
The model name, IF-con version and Syscon version are dis­played at the bottom of the on-screen display.

Remocon Diagnosis Menu

0. External Chip Check

1. Servo Parameter Check

2. Drive Manual Operation

3. Emergency History

4. Version Information

5. To execute each function, press its number by using numeric
button on the remote commander.

6. To release from this mode, press the [

] button to turn off the

?/1

system.

3. EXECUTING IOP MEASUREMENT

In order to execute IOP measurement, the following standard pro­cedures must be followed.

Procedure:

1. From the top menu of Remocon Diagnosis Menu, select “2
Drive Manual Operation” by pressing the [2] button on the
remote commander. The following screen appears on the on­screen display

Drive Manual Operation

1. Servo Control

2. Track/Layer Jump

3. Manual Adjustment

4. Mecha test mode

5. MIRR time Adjust

0. Return to Top Menu

2. Select “3. Manual Adjustment” by pressing the [3] button on
the remote commander. The following screen appears on the
on-screen display.

Manual Adjust

1. Track Balance Adjust:

2. Track Gain Adjust:

3. Focus Balance Adjust:

4. Focus Gain Adjust:

5. Eq boost Adjust:

6. Iop:

7. TRV. Level:

8. S curve(FE) Level:

9. RFL(PI) Level:

0. MIRR Time:
[V][v] Change Value
[RETURN]Return to previous menu

3. Select “6. Iop:” by pressing [6] button on the remote com­mander.

4. Wait until a hexadecimal number appear in the on-screen dis­play as below.

Manual Adjust

1. Track Balance Adjust:

2. Track Gain Adjust:

3. Focus Balance Adjust:

4. Focus Gain Adjust:

5. Eq boost Adjust:

6. Iop: ED:

7. TRV. Level:

8. S curve(FE) Level:

9. RFL(PI) Level:

0. MIRR Time:
[V][v] Change Value
[RETURN]Return to previous menu

Model Name :xxxx_xx
IF-con:Ver.xx.xx(xxxx)
Syscon:Ver.x.xxx

5. Convert data from hexadecimal to decimal by using conver­sion table.

25

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

6. If the value is smaller than 93 (decimal), then it is OK. How­ever if the value is higher than 93, then BU (base unit) is defec­tive and need to be change.

7. Press the [
return to previous menu.

8. Press the [0] button on the remote commander to return to the
top menu of Remocon Diagnosis Menu.

9. Press the [?/1] button to turn off the system.

4. CHECKING EMERGENCY HISTORY

To check the emergency history, please follow the following pro­cedure.

Procedure:

1. From the top menu of Remocon Diagnosis Menu, select “3.
Emergency History” by pressing the [3] button on the remote
commander. The following screen appears on the on-screen
display.

Laser Hours CD 999h 59min
DVD 999h 59min

01. 01 05 04 04 00 92 46 00
00 00 00 00 00 00 23 45

02. 02 02 01 01 00 A9 4B 00
00 00 00 00 00 00 23 45

RETURN] button on the remote commander to

O

Emg. History Check

60: Focus on error
61: Seek fail error
62: Read Q data/ID error
70: Lead in data read fail
71: TOC read time out (CD)
80: Can’t buffering
81: Unknown media type

B. Parameter of error code

This is the detail of error code.

Example of Error code

01. 01 05 04 04 00 92 46 00
00 00 00 00 00 00 23 45

C. Time of error code

This is the laser time when an error occurred.

Example of Error code

01. 01 05 04 04 00 92 46 00
00 00 00 00 00 00 23 45

To Clear the Laser Hour

Press the [
press the [CLEAR] button on the remote commander. The data for
both CD and DVD data are reset.

DISPLAY] button on the remote commander and then

[Next]Next page [Prev]Prev page
[0]Return to Top Menu

2. You can check the total time when the laser is turned on during
playback of DVD and CD from the above menu. The maxi­mum time, which can be displayed are 999h 59min.

3. You can check the error code of latest 10 emergency history
from the above menu. To view the previous or next page of
emergency history, press the [
mote commander. The error code consists of three kinds of er­ror codes.

A. Error code

Example of Error code

01. 01 05 04 04 00 92 46 00
00 00 00 00 00 00 23 45

The meaning of error code is as below:

01: Communication error (No reply from syscon)
02: Syscon hung up
03: Power OFF request when syscon hung up
19: Thermal shutdown
24: MoveSledHome error
25: Mechanical move error (5 changer)
26: Mechanical move stack error
30: DC motor adjustment error
31: DPD offset adjustment error
32: TE balance adjustment error

33. TE sensor adjustment error

34. TE loop gain adjustment error

35. FE loop gain adjustment error

36. Bad jitter after adjustment

40. Focus NG

42. Focus layer jump NG

51: Spindle stop error

52. Open kick spindle error

] or [L] button on the re-

l

Emg. History Check
Laser Hours CD 0h 0min
DVD 0h 0min

01. 01 05 04 04 00 92 46 00
00 00 00 00 00 00 23 45

02. 02 02 01 01 00 A9 4B 00
00 00 00 00 00 00 23 45

[Next]Next page [Prev]Prev page
[0]Return to Top Menu

To Clear the Emergency History

Press the [DVD TOP MENU] button on the remote commander
and then press the [CLEAR] button on the remote commander. The
error code for all emergency history would be reset.

Emg. History Check
Laser Hours CD 999h 59min
DVD 999h 59min

01. 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00

02. 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00

[Next]Next page [Prev]Prev page
[0]Return to Top Menu

26

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

2727

SECTION 5

ELECTRICAL ADJUSTMENTS

When the base unit is replaced, perform the adjustment and the
measurement as shown below in this order.

EXECUTING IOP MEASUREMENT (See page 25)

FM TUNE LEVEL CHECK

Procedure:

1. Turn on the set.

2. Input the following signal from signal generator to FM antenna
input directly.

Carrier frequency: A = 87.5 MHz, B = 98 MHz, C = 108 MHz

Deviation : 75 kHz
Modulation : 1 kHz
ANT input : 35 dBu (EMF)

Note: Use 75 ohm coaxial cable to connect signal generator and the set.

You cannot use video cable for checking.

Use signal generator whose output impedance is 75 ohm.

3. Set to FM tuner function and tune A, B and C signals.

4. Confi rm “TUNED” is lit on the display for A, B and C sig-
nals.

When the selected station signal is received in good condition,
“TUNED” is displayed.

DVD SECTION TUNER SECTION

To Execute the Initialize Setup Data

Procedure:

1. Press the [DVD MENU] button on the remote commander and
then press the [CLEAR] button on the remote commander. The
following screen appears on the on-screen display.

Emg. History Check
Laser Hours CD 999h 59min
DVD 999h 59min

Initialize setup data...

[Next]Next page [Prev]Prev page
[0]Return to Top Menu

2. The screen after a while returns to former display.

To Return to the Top Menu of Remocon Diagnosis Menu
Press the [0] button on the remote commander.

5. CHECKING VERSION INFORMATION

To check the version information, please follow the following pro­cedure.

Procedure:

1. From the top menu of Remocon Diagnosis Menu, select “4.
Version Information” by pressing the [4] button on the remote
commander. The following screen appears on the on-screen
display.

Version information

Firm(Main): Ver. X.XXXX
Firm(Sub): XX.XX
RISC: XXXXXX
8032: XXXXXX
Audio DSP: XX.XX.XX.XX
Servo DSP: XX.XX.XX.XX

[0]Return to Top Menu

2. To return to the top menu of Remocon Diagnosis Menu, press
the [0] on the remote commander.

signal

generator

set

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

2828

SECTION 6

DIAGRAMS

6-1. BLOCK DIAGRAM - RF SERVO/VIDEO Section -

DQ0 – DQ7

HD0 – HD7

A-1, A0 – A20

HA0 – HA21

OPTICAL PICK-UP

BLOCK

RF AMP, SERVO DSP,

MPEG DECODER,

HDMI TRANSMITTER

IC1101

FOCUS/TRACKING COIL DRIVE,

SPINDLE/SLED MOTOR DRIVE

IC1201

AUTOMATIC POWER

CONTROL (FOR CD)

Q1102-1

DVDRFIP

10

DVDA

6

DVDB

7

DVDC

8

DVDD

9

RF

MA11
MB

12

MC

13

MD

14

VOA/A
VOB/B
VOC/C
VOD/D

TNI17VOE/E+G
TPI18VOF/F+H

V2O28VC

LDO122LD (780)

AUTOMATIC POWER

CONTROL (FOR DVD)

Q1102-2

LDO2

21LD (650)

FOO41

CD ON
SWITCH
Q1101-1

DVD ON
SWITCH
Q1101-2

VR (780)

MSW

LIMITSW

54

52

53

VR (650)

FCS+

MSW

MDI119
MDI2

20

PD

LIMIT

Q1103

XROMCSCE

SD-RAM

IC1104

X1101

27MHz

36

FCS–

37

1

TRO

40

TRK+

35

TRK–

34

4

FMO

37

SL+

29

SL–

30

10

DMO

36

SP+

27

SP–

28

31
32

41

46
47

13

OP_INP

35

45

BCK

ABCK

226

ALRCK

223

ACLK

225

79, 80,

82 – 86, 89

29, 31, 33, 35,

38, 40, 42, 44

92, 77, 56 – 62, 74 – 67,

91, 63, 64, 75, 87

45, 25 – 18, 8 – 1,

48, 17, 16, 9, 10

DQ0 – DQ15

RD0 – RD15

A0 – A11

RA0 – RA11

2, 4, 5, 7, 8, 10, 11, 13, 42,

44, 45, 47, 48, 50, 51, 53

121 – 119, 117 – 113,

129 – 122

140, 141, 143, 144,

155 – 150, 139, 149

23 – 26,

29 – 34, 22, 35

76

XTALI

239

26

XRDOE

78

28

XWRWE

66

11

RESET

12

BA0 BA0

137

20

BA1 BA1

138

21

DRCLK CLK

146

38

CKE CLKE

147

37

DQM0 LDQM

111

15

DQM1 UDQM

132

39

RAS /RAS

135

18

CAS /CAS

134

17

RCS /CS

136

19

RWE /WE

133

DIR_DO

231

16

• SIGNAL PATH

: CD/DVD PLAY

: AUDIO

:VIDEO

FOCUS

COIL DRIVE

TRACKING

COIL DRIVE

SLED

MOTOR DRIVE

SPINDLE

MOTOR DRIVE

REGULATOR

MUTE123MUTE123

157

19

MUTEMUTE34

158

20

TSD_MTSD-M

130

22

IOPMON

3940

8

PS

21

BUFFER

BUFFER

RF+3.3V

SDASDA

102

5

SCLSCL

101 11 2

6

EEWPWE

7

REGO2
REGO1

DVD_SOD IFSDO

32

97

DVD XIFCS xIFCS

37

99

51

DVD_SID IFSDI

31

M_ST

52

100

DVD_SCO IFSCK

33

98

DVD_XIFBUSY IFBSY

34

110

MTK_RST XSYSRST

38

V_SEL1

83

108

SYSTEM CONTROLLER

IC501 (1/5)

LRCK

MCK

D2

D3

D1

189

C

191

Y

183

B/Cb/Pb

185

Y/G

182

R/Cr/Pr

VIDEO AMP, 75 ohm DRIVER

IC404

10

CY IN

12

Cb IN

14

Cr IN

4

CVBS IN

2

C IN

6

Y IN

3

MUTE113MUTE25YC_MIX

V_SEL0

82

KHM-310CAB

or

KHM-313CAB

J404

COMPONENT

VIDEO OUT

Y

P

B/CB

PR/CR

J402 (1/2)

23

CVBS OUT

20

CY OUT

18

Cb OUT

16

Cr OUT

VIDEO OUT

FLASH ROM

IC1102

EEPROM

IC1103

XTALO

238

A

AUDIO_BUS

HDMI_BUS

D-2

D-4

C

D

F

XRST

204

ASDATA2

205

ASDATA1

203

ADIN(DATA)

DIR_AUDIO

202

ASDATA0

ASDATA3

DMPORT_VIDEO

(HCD-HDX576WF) (EXCEPT HCD-HDX576WF)

E

V_SEL2

TX0P

TX0N

TX1P

TX1N

TX2P

TX2N

TCKP

TCKN

HTPLG

174

173

177

176

179

171

170

DDC_DA

DDC_CLK

TX0P

TX0N

TX1P

TX1N

TX2P

TX2N

TCKP

TCKN

HPD

SDA

SCL

159

161

MC_DATA(ADIN)

206

162

180

222

BUFFER

IC4502

AUDIO SELECTOR

IC3003

1A

2B

6

A/B

5Y

B

VinL

14

13

VinR

BCK

7

LRCK

6

8

SCKI

A/D CONVERTER

IC707

9

DOUT

M

AUDIO1

R-CH

DIGITAL AUDIO

INTERFACE RECEIVER

IC702

DO (O)

35 36

DI (I)

CL (I)38CE (I)

3714

BCK (O)

LRCK (O)15CKOUT (O)

13

CSFLAG (O)

25

ERROR (O)34XSTATE (O)17XMODE (I)

48

DIR_DI

230

DIR_CL

227

DIR_CE

221

SPBCK

200

SPLRCK

201

SPMCK

198

DIR_CSFLAG

214

DIR_ERROR

DIR_XSTATE

198

5DIN2 (I)

OPTICAL

RECEIVER

IC301

TV

DIGITAL IN

OPTICAL

TV

DIGITAL IN

COAXIAL

TV/VIDEO

DIGITAL IN

OPTICAL

TV/VIDEO

DIGITAL IN

COAXIAL

J302

4DIN1 (I)

WAVE

SHAPER

IC302

XIN (I)

22

XOUT (O)

21

X701

12.288MHz

16

DATA (O)

24

AUDIO- (O)

(Page 31)

(Page 30)

(Page 29)

(Page 30)

(Page 29)

(Page 29)

(Page 29)

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

2929

6-2. BLOCK DIAGRAM - CHANGER/HDMI/DMPORT Section -

TX0P

TX0N

TX1P

TX1N

TX2P

TX2N

TCKP

TCKN

7

TMDS DATA0 +

HDMI OUT

9

TMDS DATA0 –

4

TMDS DATA1 +

6

TMDS DATA1 –

1

TMDS DATA2 +

3

TMDS DATA2 –

10

TMDS CLOCK +

12

TMDS CLOCK –

16

SDA

15

SCL

18

+5V POWER

19

HPD

HPD

CN1701

5

RXD

6

TXD

7

DET

13

Lch

14

RchR-CH

17

VIDEO

CN204

DMPORT

LEVEL SHIFT

IC1705

LINE AMP

IC202

LEVEL SHIFT

Q1701

13

CEC

+5V

REGULATOR

IC1707

SW+9V

SDA

SCL

C

HDMI BUS

DMPORT_VIDEO

G

D

DMPORT_L

F

XRST

IO_DI

P0FIN

CHANGER CONTROL

IC650

247

P1RIN

23

OUT1

4

OUT2

2 9

LD/ST MOTOR DRIVER

IC701

M761

(LD/ST MOTOR)

D SENSOR

IC751

(ST U/D)

ROTARY

ENCODER

S781

M

P4FIN 207
P5RIN

19

P8

12

OUT1

4

OUT2

2 9

BU U/D MOTOR DRIVER

IC711

M762

(BU U/D MOTOR)

M

S761 (SUB TRAY OUT)

P11

9

S731 (SUB TRAY IN)

S721 (MAIN TRAY IN/OUT)

P10

10

P911

P12

IN

OPEN

8

86

DMPORT_TX_OUT

30

DMPORT_RX_IN

29

DMPORT_DET

89

DI1

26

IO_CLK

88 CLK3

IO_CE

84 LATCH4

IO_RESET

85

DO1

15

DO2

25

CLKO

14

LATCHO

13

RESET_B

2

CEC_TX_OUT

22

CEC_RX_IN

3

HDMI_PCONT

63

IO-DO

87

CHANGER CONTROL,

AUDIO/VIDEO CONTROL

IC651

DI1

26

DI2

16

CLK

3

LATCH

4

RESET_B

2

DISC SENSOR

Q751

DO2

25

9 – 12

P11 – P8

(MD)

ROTARY

ENCODER

S771

5 – 8

P15 – P12

SYSTEM

CONTROLLER

IC501 (2/5)

• SIGNAL PATH

: AUDIO

:VIDEO

• R-CH is omitted due to same as L-CH.

CEC DATA

SWITCH

Q9724, 9726,

Q9728, 9729

P6

18

P7

17

A_SEL0
A_SEL1

P4

20

P5

19

A_SEL2
A_SEL3

P2

22

P3

21

A_SEL4
A_SEL5

E

J

P1

23

V_SEL2

A_SEL

LEVEL SHIFT

IC1706

(Page 30)

(Page 28)

(Page 30)

(Page 28)

(Page 28)

(Page 28)

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675

3030

6-3. BLOCK DIAGRAM - TUNER/S-AIR Section -

A_SEL4

A_SEL5

A_SEL0

A_SEL1

A_SEL2

A_SEL3

AUDIO SELECTOR

IC411

R-CH

R-CH

72 ST_DI

91

MONO/ST_DET

90

A.CAL_MIC

_LEVEL

28

DC_CONT

70 ST_DO
69 ST_CLK
71 ST_CE
68 TUNED

R-CH

TUNER (FM/AM)

AM

FM ANT

AM ANT

L-CH

R-CH

DIN

TUNED

DO

CLK

CE

FM 75Ω

COAXIAL

ANTENNA

4Y3

2 3Y2 Y

1Y0

10A9

B

J405

(HCD-HDX576WF)

(EXCEPT HCD-HDX576WF)

J402 (2/2)

TV

AUDIO IN

TV/VIDEO
AUDIO IN

L

R

R-CH

SAT/CABLE

AUDIO IN

L

R

R-CH

Q413

Q412

LINE AMP

IC410

XIN

15

XOUT

13

S-AIR_ADC_SEL

54

S-AIR_RST(SRC RST)

58

S-AIR_I2C_SDA

77

S-AIR_I2C_SCL

78

S-AIR_GPIO_2

67

X501
5MHz

SYSTEM CONTROLLER

IC501 (3/5)

• SIGNAL PATH

: TUNER

: AUDIO

• R-ch is omitted due to same as L-ch.

: AUDIO IN

AUDIO IN/

A.CAL MIC

J100

5Y1

DATA SELECTOR

IC801

31B

2

41A1Y

72Y

93Y

6

2B

1

SEL

5

2A

10

3B

11

3A

ASYNC SAMPLE

RATE CONVERTER

IC804

6

LRCKI

4

23

SDIN

SDOUT

25BCKO

24LRCKO

5

BCKI

13

RST

2

RCKI

ASYNC SAMPLE

RATE CONVERTER

IC803

6

LRCKI

4

23

SDIN

SDOUT

25BCKO

24LRCKO

5

BCKI

13

RST

2

RCKI

LINE AMP

IC104

LINE AMP

IC105

MUTING

Q115

MUTING

CONTROL

Q111

GAIN

CONTROL

Q112, 113

MIC_GAIN

26

G

DMPORT_L

J

A_SEL

AUDIO SELECTOR

IC409

5

3Y1Y

11 Y 0

10A9

B

2Y2

AUDIO SELECTOR

IC407

5

3Y1Y

11 Y 0

10A9

B

2Y2

A/D CONVERTER

IC805

9VOUT

8BCK

7LRCK

13 VINL

Q409

Q408

D4

D2

BCK

LRCK

Q411

Q410

B

M

K

X800

12.288MHz

OSC BUFFER

IC802

17

BCK

15

LRCK

12

RESET

RESN

GPI02

I2D_SCL

I2D_SDA

GND

ADC_SEL

Lch

Rch

SD1

SD2

BCK1

BCK2

LRCK1

LRCK2

7

INIT

11

I2D_SCL

14

3

I2D_SDA

GND (for DET)

CN803

EZW-RT10

CN113

EZW-T100

13

SDIN_B(Surr)

20

7

11

19

18

15

26

24

23

14

4

12

16

2

SDIN_A(2nd)

(HCD-HDX277WC/HDX279W/HDX576WF)

AUDIO1

6

SCKI

25

R-CH

(HCD-HDX275/HDX475/HDX675)

EEPROM_SDA/I2C_DATA

EEPROM_SCL/I2C_CLK

47 48

EEPROM

IC510

5 6

SDA

SCL

(MIC_/A.CAL_SW)/

(HP_SW and MIC2_SW)/S-AIR_DET

66

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(Page 28)