Sony HCD-DZ280 User manual

SERVICE MANUAL
Sony Corporation
Audio&Video Business Group
Published by Sony Techno Create Corporation
HCD-DZ280/DZ680/
HDZ284/HDZ485
SPECIFICATIONS
DVD RECEIVER
9-889-391-03
2010C04-1
© 2010.03
Canadian Model
HCD-HDZ284/HDZ485
AEP Model
UK Model
HCD-DZ280/DZ680
PX Model
HCD-HDZ485
Ver. 1.2 2010.03
Model Name Using Similar Mechanism HCD-DZ260/DZ270/HDZ278
Mechanism Type CDM85-DVBU102
Optical Pick-up Name KHM-313CAA
• HCD-DZ280/DZ680/HDZ284/HDZ485 are the amplifier, DVD/CD
and tuner section in DAV-DZ280/DZ680/HDZ284/HDZ485.
Amplifier Section
Stereo mode (rated) 108 W + 108 W (at 3 ohms,
1 kHz, 1% THD)
DZ280/DZ680/HDZ284:
Surround mode (reference)RMS output power
FL/FR/C/SL/SR*: 142
watts (per channel at 3
ohms, 1 kHz, 10% THD)
Subwoofer*: 140 watts (at
3 ohms, 80 Hz, 10% THD)
HDZ485:
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)
* Depending on the decoding mode settings and the
source, there may be no sound output.
Inputs (Analog) (DZ280/DZ680)
TV (AUDIO IN) Sensitivity: 450/250 mV
AUDIO IN Sensitivity: 250/125 mV
Inputs (Digital) (DZ680/HDZ284/HDZ485)
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)
Inputs (Analog) (HDZ284/HDZ485)
TV/VIDEO (AUDIO IN) Sensitivity: 450/250 mV
AUDIO IN Sensitivity: 250/125 mV
Outputs (Analog)
Phones Accepts low- and high-
impedance headphones.
Super Audio CD/DVD System
Laser Diode Properties Emission Duration:
Continuous
Laser Output: Less than
44.6μW
* 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
HDZ284/HDZ485: NTSC
DZ280/DZ680: NTSC/PAL
USB Section (DZ280/DZ680)
(USB) port:
Maximum current: 500 mA
Tuner Section
System PLL quartz-locked digital
synthesizer
FM Tuner section
Tuning range
Canadian, PX 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
Video Section (DZ280/DZ680)
Outputs VIDEO: 1 Vp-p 75 ohms
R/G/B: 0.7 Vp-p 75 ohms
HDMI OUT: Type A (19
pin)
Video Section (HDZ284/HDZ485)
Outputs VIDEO: 1 Vp-p 75 ohms
COMPONENT:
Y: 1 Vp-p 75 ohms
PB/CB, PR/CR: 0.7 Vp-p
75 ohms
HDMI OUT: Type A (19
pin)
– Continued on next page –
Photo: HCD-HDZ284
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 Laboratories.
** 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.

HCD-DZ280/DZ680/HDZ284/HDZ485
2
SAFETY-RELATED COMPONET WARNING!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH MARK 0ON 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 0SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONC-
TIONNEMENT. NE REMPLACER CES COMPOSANTS QUE
PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON-
NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
General
Power requirements
Canadian model: 120 V AC, 60 Hz
AEP, UK models: 220 V - 240 V AC, 50/60 Hz
PX model: 110 V - 240 V AC, 50/60 Hz
Power consumption
HDZ485: On: 155 W
Standby: 0.3 W (at the
Power Saving mode)
DZ280/DZ680/HDZ284: On: 150 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 ×66 mm ×390 mm
(17 in ×2 5/8 in ×15 3/8 in)
(w/h/d) incl. projecting parts
Mass (approx.) 4.3 kg (9 lb 8 oz)
Supported file format
MP3 (MPEG 1 Audio Layer-3)
File Extension: mp3
Bitrate: 32 kbps - 320 kbps
Sampling frequencies: 32/44.1/48 kHz
DZ280/DZ680:
WMA (USB device only)
File Extension: wma
Bitrate: 48 kbps - 192 kbps
Sampling frequencies: 44.1 kHz
AAC (USB device only)
File Extension: m4a
Bitrate: 48 kbps - 320 kbps
Sampling frequencies: 44.1 kHz
DZ280:
DivX
File Extension: avi/divx
Video codec: DivX video
Bitrate: 8 Mbps (MAX)
Frame rate: 30 fps
Resolution: 720 ×576
Audio codec: MP3
MPEG4
File format: MP4 File Format
File Extension: mp4/m4v
Video codec: MPEG4 Simple Profile
(AVC is not compatible.)
Bitrate: 4 Mbps
Frame rate: 30 fps
Resolution: 720 ×576
Audio codec: AAC-LC (HE-AAC is not
compatible.)
DRM: Not compatible
Design and specifications are subject to change
without notice.
SPECIAL COMPONENT NOTICE
The components identified by mark 9contain confidential infor-
mation.
Strictly follow the instructions whenever the components are re-
paired and/or replaced.
NOTICE POUR COMPOSANTS SPÉCIAUX
Les composants identifiés par la marque 9contiennent des infor-
mations confidentielles.
Suivre scrupuleusement les instructions chaque fois qu’un com-
posant est remplacé et / ou réparé.
Ver. 1.1

HCD-DZ280/DZ680/HDZ284/HDZ485
3
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)
1.5 kΩ0.15 μF
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
Model Part No.
DZ280: AEP, UK model 4-113-457-0[]
HDZ284: CND model 4-113-457-2[]
HDZ485: CND model 4-113-457-6[]
HDZ485: PX model 4-113-457-8[]
DZ680: AEP, UK model 4-113-459-5[]
MODEL IDENTIFICATION
– Back Panel –
Parts No.
• Abbreviation
CND : Canadian model
Ver. 1.1

HCD-DZ280/DZ680/HDZ284/HDZ485
4
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free 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 flow)
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.
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.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
This appliance is classified as
a CLASS 1 LASER product.
This marking is located on the
rear or bottom exterior.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radia-
tion exposure.

HCD-DZ280/DZ680/HDZ284/HDZ485
5
6GB
Playable Discs
1)MP3 (MPEG1 Audio Layer 3) is a standard format defined by ISO/MPEG for compresses audio data. MP3 files
must be in MPEG1 Audio Layer 3 format.
2)JPEG image files must conform to the DCF image file format. (DCF “Design rule for Camera File system”: Image
standards for digital cameras regulated by Japan Electronics and Information Technology Industries Association
(JEITA).)
nocIscitsiretcarahCogolcsiDepyT
OEDIVDVD•OEDIVDVD
• DVD-R/DVD-RW in DVD VIDEO
format or video mode
• DVD+R/DVD+RW in DVD VIDEO
format
VR (Video
Recording) mode
• DVD-R/DVD-RW in VR (Video
Recording) mode (except for DVD-R
DL)
)scsid0.2dna1.1.reV(DCOEDIV•DCOEDIV
• Super VCD
• CD-R/CD-RW/CD-ROM in video CD
format or Super VCD format
DCoiduArepuS•DCoiduArepuS
DCoiduA•DC
• CD-R/CD-RW in audio CD format
DATA CD – • CD-R/CD-RW/CD-ROM in DATA CD
format, containing MP3 files1),JPEG
image files2), DivX video files, and
MPEG4 video files, and conforming to
ISO 96603) Level 1/Level 2, or Joliet
(extended format)
DATA DVD – • DVD-ROM/DVD-R/DVD-RW/
DVD+R/DVD+RW in DATA DVD
format, containing MP3 files1),JPEG
image files2), DivX video files, and
MPEG4 video files, and conforming to
UDF (Universal Disk Format)

HCD-DZ280/DZ680/HDZ284/HDZ485
6
7GB
3)A logical format of files and folders on CD-ROMs, defined by ISO (International Organization for
Standardization).
Notes on discs
This product is designed to playback discs that conform to the Compact Disc (CD) standard.
DualDiscs and some of the music discs encoded with copyright protection technologies do not conform
to the Compact Disc (CD) standard, therefore, these discs may not be playable by this product.
The system cannot play the following discs:
• CD-ROM/CD-R/CD-RW other than those recorded in the formats listed on page 6
• CD-ROM recorded in PHOTO CD format
• Data part of CD-Extra
•CDGraphicsdisc
• DVD Audio
• DATA DVD that does not contain MP3 files, JPEG image files, DivX video files, or MPEG4 video
files
• DVD-RAM
•Blu-rayDisc
Also, the system cannot play the following discs:
• A DVD VIDEO with a different region code (page 8)
• A disc that 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
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 quality 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.
• 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 played 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.
Example of discs that the system cannot play
Note about CD-R/CD-RW/DVD-R/DVD-RW/DVD+R/DVD+RW
About Multi Session CD

HCD-DZ280/DZ680/HDZ284/HDZ485
7
8GB
Your system has a region code printed on the rear of the unit and will only play a DVD labeled 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. Depending on the DVD VIDEO, no region code indication may be given even
though playing the DVD VIDEO is prohibited by area restrictions.
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.
Region code
Note about playback operations of a DVD or VIDEO CD
ALL

HCD-DZ280/DZ680/HDZ284/HDZ485
8
Additional Information
89GB
Self-diagnosis Function
(When letters/numbers appear in the
display)
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 the version number
appears 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.
First 3
characters of
the service
number
Cause and/or corrective action
C 13 The disc is dirty.
Clean the disc with a soft cloth
(page 80).
C 31 The disc is not inserted correctly.
Restart the system, then re-insert
the disc correctly.
EXX
(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

HCD-DZ280/DZ680/HDZ284/HDZ485
9
1. SERVICING NOTES ............................................. 10
2. GENERAL .................................................................. 12
3. DISASSEMBLY
3-1. Case ................................................................................ 17
3-2. Front Panel Section ......................................................... 17
3-3. Back Panel Section (DZ680/HDZ485) ........................... 18
3-4. Back Panel Section (DZ280/HDZ284) ........................... 18
3-5. DVD Mechanism Deck................................................... 19
3-6. POWER Board, USB Board (DZ280/DZ680)................ 19
3-7. MAIN Board, SPEAKER Board .................................... 20
3-8. IO-SCART Board (DZ280/DZ680),
IO-COMPONENT Board (HDZ284/HDZ485) .............. 20
3-9. Tray ................................................................................. 21
3-10. Belt.................................................................................. 21
3-11. MS-203 Board................................................................. 22
3-12. Base Unit......................................................................... 22
3-13. Optical Pick-up ............................................................... 23
4. TEST MODE ............................................................ 24
5. ELECTRICAL ADJUSTMENTS ........................ 30
6. DIAGRAMS
6-1. Block Diagram –RF Section– ......................................... 31
6-2. Block Diagram –VIDEO Section– ................................. 32
6-3. Block Diagram –AUDIO Section– ................................. 33
6-4. Block Diagram –AMP Section– ..................................... 34
6-5. Block Diagram –POWER Section– ................................ 35
6-6. Printed Wiring Board –MAIN Section (1/2)–................. 38
6-7. Printed Wiring Boards –MAIN Section (2/2)– ............... 39
6-8. Schematic Diagram –MAIN Section (1/10)– ................. 40
6-9. Schematic Diagram –MAIN Section (2/10)– ................. 41
6-10. Schematic Diagram –MAIN Section (3/10)– ................. 42
TABLE OF CONTENTS
6-11. Schematic Diagram –MAIN Section (4/10)– ................. 43
6-12. Schematic Diagram –MAIN Section (5/10)– ................. 44
6-13. Schematic Diagram –MAIN Section (6/10)– ................. 45
6-14. Schematic Diagram –MAIN Section (7/10)– ................. 46
6-15. Schematic Diagram –MAIN Section (8/10)– ................. 47
6-16. Schematic Diagram –MAIN Section (9/10)– ................. 48
6-17. Schematic Diagram –MAIN Section (10/10)– ............... 49
6-18. Printed Wiring Board –IO-SCART Section
(DZ280/DZ680)– ............................................................ 50
6-19. Schematic Diagram –IO-SCART Section
(DZ280/DZ680)– ............................................................ 51
6-20. Printed Wiring Board –IO-COMPONENT Section
(HDZ284/HDZ485)– ...................................................... 52
6-21. Schematic Diagram –IO-COMPONENT Section
(HDZ284/HDZ485)– ...................................................... 53
6-22. Printed Wiring Boards –FL JACK, SWITCH Section–... 54
6-23. Schematic Diagram –FL JACK Section– ....................... 55
6-24. Schematic Diagram –SWITCH Section– ....................... 56
6-25. Printed Wiring Boards –S-AIR-CON (DZ680/HDZ485),
USB (DZ280/DZ680) Section– ...................................... 57
6-26. Schematic Diagram –S-AIR-CON Section
(DZ680/HDZ485)– .......................................................... 58
6-27. Schematic Diagram –USB Section (DZ280/DZ680)–.... 59
6-28. Printed Wiring Board –SPEAKER Section– .................. 60
6-29. Schematic Diagram –SPEAKER Section– ..................... 61
6-30. Printed Wiring Board –POWER Section– ...................... 62
6-31. Schematic Diagram –POWER Section–......................... 63
7. EXPLODED VIEWS
7-1. Overall Section ............................................................... 77
7-2. Front Panel Section ......................................................... 78
7-3. Chassis Section ............................................................... 79
7-4. DVD Mechanism Deck Section (CDM85-DVBU102) .. 80
8. ELECTRICAL PARTS LIST .............................. 81

HCD-DZ280/DZ680/HDZ284/HDZ485
10
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 electrostat-
ic break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused
on the disc reflective surface by the objective lens in the optical
pickup block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
How to open the disc table when power switch turns off
Insert a tapering driver into the aperture of the unit bottom, and
slide it in the direction of the arrow.
Precaution when installing a new OP unit/
Precaution before unsoldering the static electricity
prevention solder bridge
When installing a new OP unit, be sure to connect the flexible
printed circuit board first of all before removing the static electricity
prevention solder bridge by unsoldering.
Remove the static electricity prevention solder bridge by
unsoldering after the flexible printed circuit board has already been
connected.
(Do not remove nor unsolder the solder bridge as long as the OP
unit is kept standalone.)
On cleaning discs, disc/lens cleaners
• Do not use cleaning discs or disc/lens cleaners (including wet or
spray types). These may cause the apparatus to malfunction.
IMPORTANT NOTICE
Caution: This system is capable of holding a still video image or
on-screen display image on your television screen indefinitely.
If you leave the still video image or on-screen display image
displayed on your TV for an extended period of time you risk
permanent damage to your television screen.
Projection televisions are especially susceptible to this.
Attention when transported
Use this mode when returning the set to the customer after repair.
Procedure:
1. Press the [?/1] button to turn the set on.
2. Press the [FUNCTION] button to set the function “DVD”.
3. Remove all discs, and then press two buttons [N] and [?/1]
simultaneously.
4. After a message “MECHA LOCK” is displayed on the
fluorescent indicator tube, pull out the AC plug.
5. To exit from this mode, press the [?/1] button to turn the set
on.
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 [?/1] button to turn the set on.
2. Press the [FUNCTION] button to set DVD function.
3. Insert a disc.
4. Press the [x] button and the [Z] button simultaneously for five
seconds.
5. The message “LOCKED” is displayed and the tray is locked.
Releasing Procedure :
1. Press the [x] button and the [Z] button simultaneously for five
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.
LASER DIODE AND FOCUS SEARCH
1. Open the case and turn POWER on with no disc inserted.
2. Confirm that the following operation is performed while
observing the objecting lens from the clearance of DVD
mechanism deck.
1) Confirm that laser beam is spread.
2) Up and down motion of the objective lens. (2 times)
Peel off the seal and so the lever is moved
in the direction of the arrow with the thin rod.
tray
lavel

HCD-DZ280/DZ680/HDZ284/HDZ485
11
Discharge the charged electricity in capacitors to prevent electric shock as follows
When disassembling the machine, be sure to discharge the charged electricity in the following capacitors.
Use a resistor of 800 ohms, 2 Watts for discharging the following capacitors.
POWER board
C903: 390V
C932, C933, C934, CN904: 30V
Point of capacitor discharge for C932, C933, C934:
Connect to the red and black wire of CN904
Point of capacitor discharge for C903:
Connect to the foot of C903
800Ω/2W

HCD-DZ280/DZ680/HDZ284/HDZ485
12
SECTION 2
GENERAL This section is extracted
from instruction manual.
Additional Information
95GB
Index to Parts and Control (DZ280)
For more information, refer to the pages indicated in parentheses.
"/(on/standby) (21, 78)
#;(open/close) (27)
$Front panel display (97)
%FUNCTION (23)
&(remote sensor) (10)
'MOVIE/MUSIC indicator (73)
(VOLUME control (27)
)REC TO USB (67)
*(USB) port (58)
+OPERATION DIAL (27)
,PHONES jack (27)
-AUDIO IN jack (17)
.Play operation buttons (27)
/Disc tray (27)
Front panel
96GB
"SPEAKER jacks (15)
#COAXIAL 75ΩFM jack (19)
$EURO AV 5OUTPUT (TO TV) jack (16)
%DMPORT (DIGITAL MEDIA PORT) jack
(17, 69)
&HDMI OUT jack (16)
Rear panel
CENTER
SUBWOOFER
FRONT R FRONT L SUR R SUR L
SPEAKER
HDMI OUT
SPEAKER EURO AV
OUTPUT(TO TV)
COAXIAL 75
FM
ANTENNA
DMPORT
DC5V
0.7A MAX
Additional Information
97GB
About the indications in the front panel display
"Playing status
#Flashes when the sleep timer is set.
(74)
$Displays the 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) (52)
&Stereo/Monaural effect (Radio only)
(53)
'Lights up when the HDMI OUT jack is
correctly connected to HDCP (High-
bandwidth Digital Content Protection)
compliant device with HDMI or DVI
(Digital Visual Interface) input. (16)
(Current surround format (Except for
JPEG image file)
)Lights up when an NTSC disc is
loaded.
*Lights up when a Super Audio CD/CD
is loaded. (30)
Front panel display
98GB
Remote control
SNOITPIRCSEDNOTTUBREDROLACITEBAHPLA
Z–PO–A
ANGLE XT (28)
AUDIO RH (29)
CLEAR FT (32, 53)
D.TUNING RI (53)
DIMMER FE (75)
DISPLAY XB (54, 64, 75)
DVD MENU XH (35)
DVD TOP MENU RE (35)
DYNAMIC BASS (72)
ENTER XG (72)
FUNCTION +/– (23, 27)
MEMORY SELECT1) XT
MENU XH (72)
MUTING (27)
NIGHT XE (72)
ONE-TOUCH PLAY FI (56)
PICTURE NAVI FG (38, 60)
PRESET +/– XK (53)
PROG +/– XK (72)
S-AIR MODE2) FH
SLEEP RK (74)
SOUND MODE (73)
SUBTITLE RI (28)
SYSTEM MENU (20, 24, 52,
74)
THEATRE RL (55)
TOOLS XI (72)
TUNING +/– (52)
TV XM (72)
TV INPUT X (72)
VOLUME +/– (27)
Number buttons RG (31, 52, 72)
</(on/standby) (20, 21, 27)
TV </(on/standby) RM (72)
$/9/Y/D/RT (20, 21, 30, 32,
52, 71)
+/– (37, 57)
REPLAY/ADVANCE
(27)
/XK (27)
N/.(27)
STEP / (27)
SLOW / (27)
)(play) F (27)
Y(stop) XL (27)
9(pause) RB (27)
DISPLAY3) XI (21, 30, 32, 45,
71, 99)
0RETURN FB (31, 72)
-/-- FT (72)
1)See the included supplement.
2)This button is not available
for this model.
3)This button is available for
the “DVD,” “USB,” or
“DMPORT” function.
Depending on the DIGITAL
MEDIA PORT adapter, this
button may not work.

HCD-DZ280/DZ680/HDZ284/HDZ485
13
112 GB
Index to Parts and Control (DZ680)
For more information, refer to the pages indicated in parentheses.
"/(on/standby) (27, 93)
#;(open/close) (34)
$Front panel display (114)
%FUNCTION (30)
&(remote sensor) (10)
'MOVIE/MUSIC indicator (88)
(VOLUME control (34)
)REC TO USB (74)
*(USB)port(65)
+OPERATION DIAL (34)
,PHONES jack (34)
-AUDIO IN/A.CAL MIC jack (23, 27, 85)
.Play operation buttons (34)
/Disc tray (34)
Front panel
Additional Information
113 GB
"SPEAKER jacks (21)
#EZW-T100 slot (78)
$COAXIAL 75ΩFM jack (25)
%EURO AV 5OUTPUT (TO TV) jack (22)
&DMPORT (DIGITAL MEDIA PORT) jack
(23, 77)
'HDMI OUT jack (22)
(TV (DIGITAL IN COAXIAL/OPTICAL)
jacks (22)
*CAUTION
Please do not remove the screws unless you
are installing the EZW-T100.
Rear panel
CENTER
SUBWOOFER
HDMI OUT
SPEAKER EURO AV
OUTPUT(TO TV)
COAXIAL 75
FM
ANTENNA
DMPORT
DC5V
0.7A MAX
DIGITAL IN
COAXIALOPTICAL
TV
FRONT R FRONT L SUR R SUR L
SPEAKER
EZW-T100
Screws*
114 GB
About the indications in the front panel display
"Playing status
#Flashes when the sleep timer is set.
(89)
$Displays the 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) (59)
&Stereo/Monaural effect (Radio only)
(60)
'Lights up when the S-AIR transmitter
(not supplied) is inserted in the unit
and the system transmits the sound.
(78)
(Lights up when the HDMI OUT jack is
correctly connected to HDCP (High-
bandwidth Digital Content Protection)
compliant device with HDMI or DVI
(Digital Visual Interface) input. (22)
)Current surround format (Except for
JPEG image file)
*Lights up when an NTSC disc is
loaded.
+Lights up when a Super Audio CD/CD
is loaded. (37)
Front panel display
Additional Information
115 GB
Remote control
SNOITPIRCSEDNOTTUBREDROLACITEBAHPLA
Z–PO–A
ANGLE XT (35)
AUDIO RH (36)
CLEAR FT (39, 60)
D.TUNING RI (60)
DIMMER FE (90)
DISPLAY XB (61, 71, 90)
DVD MENU XH (42)
DVD TOP MENU RE (42)
DYNAMIC BASS (87)
ENTER XG (86)
FUNCTION +/– (30, 34)
MEMORY SELECT1) XT
MENU XH (86)
MUTING (34)
NIGHT XE (87)
ONE-TOUCH PLAY FI (63)
PICTURE NAVI FG (45, 67)
PRESET +/– XK (60)
PROG +/– XK (86)
S-AIR MODE FH
SLEEP RK (89)
SOUND MODE (88)
SUBTITLE RI (36)
SYSTEM MENU (26, 31, 59,
89)
THEATRE RL (62)
TOOLS XI (86)
TUNING +/– (59)
TV XM (86)
TV INPUT X (86)
VOLUME +/– (34)
Number buttons RG (38, 59, 86)
</(on/standby) (26, 27, 34)
TV </(on/standby) RM (86)
$/9/Y/D/RT (26, 27, 37, 39,
59, 84)
+/– (44, 65)
REPLAY/ADVANCE
(34)
/XK (34)
N/.(34)
STEP / (34)
SLOW / (34)
)(play) F (34)
Y(stop) XL (34)
9(pause) RB (34)
DISPLAY2) XI (27, 37, 39, 52,
84, 116)
0RETURN FB (38, 86)
-/-- FT (86)
1)See the included supplement.
2)This button is available for
the “DVD,” “USB,” or
“DMPORT” function.
Depending on the DIGITAL
MEDIA PORT adapter, this
button may not work.

HCD-DZ280/DZ680/HDZ284/HDZ485
14
82US
Index to Parts and Control (HDZ284)
For more information, refer to the pages indicated in parentheses.
"/(on/standby) (21, 66)
#;(open/close) (28)
$Front panel display (84)
%FUNCTION (24)
&(remote sensor) (9)
'MOVIE/MUSIC indicator (62)
(VOLUME control (28)
)DMPORT BOOSTER (61)
*OPERATION DIAL (28)
+PHONES jack (28)
,AUDIO IN/A.CAL MIC jack (17, 21, 59)
-Play operation buttons (28)
.Disc tray (28)
Front panel
Additional Information
83US
"SPEAKER jacks (14)
#COAXIAL 75ΩFM jack (19)
$TV/VIDEO (AUDIO IN R/L) jacks (16)
%VIDEO OUT jack (15)
&COMPONENT VIDEO OUT jacks (15)
'DMPORT (DIGITAL MEDIA PORT) jack
(17, 56)
(HDMI OUT jack (15)
)TV/VIDEO (DIGITAL IN COAXIAL/
OPTICAL) jacks (16)
Rear panel
CENTER
SUBWOOFER
FRONT R FRONT L SUR R SUR L
SPEAKER
HDMI OUT
SPEAKER
COAXIAL 75
FM
ANTENNA
DMPORT
DC5V
0.7A MAX
DIGITAL IN
AUDIO IN
P
B /C B P R /C R YLR
COAXIALOPTICAL
TV/VIDEO
VIDEO
OUT TV/VIDEOCOMPONENT VIDEO OUT
84US
About the indications in the front panel display
"Playing status
#Flashes when the sleep timer is set.
(63)
$Displays the 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) (51)
&Stereo/Monaural effect (Radio only)
(52)
'Lights up when the HDMI OUT jack is
correctly connected to HDCP (High-
bandwidth Digital Content Protection)
compliant device with HDMI or DVI
(Digital Visual Interface) input. (15)
(Current surround format (Except for
JPEG image file)
)Lights up when a Super Audio CD/CD
is loaded. (31)
Front panel display
Additional Information
85US
Remote control
SNOITPIRCSEDNOTTUBREDROLACITEBAHPLA
Z–PO–A
ANGLE (29)
AUDIO RI (30)
CLEAR FT (33, 52)
D.TUNING XT (52)
DISC SKIP1) FE
DISPLAY XB (53, 64)
DVD MENU XH (35)
DVD TOP MENU RE (35)
DYNAMIC BASS (61)
ENTER XG (60)
FUNCTION +/– (24, 28)
MENU XH (60)
MUTING (28)
NIGHT XE (61)
ONE-TOUCH PLAY FH (55)
PICTURE NAVI RH (38)
PRESET +/– XK (52)
S-AIR MODE1) 
SLEEP RK (63)
SOUND MODE (62)
SUBTITLE XT (29)
SYSTEM MENU XG (20, 25, 51,
63)
THEATER RL (54)
TOOLS XI (60)
TUNING +/– (51)
TV XM (60)
TV CH +/– XK (60)
TV INPUT X (60)
TV VOL +/– FG (60)
VOLUME +/– (28)
Number buttons RG (31, 51, 60)
</(on/standby) (20, 21, 28)
TV </(on/standby) RM (60)
$/9/Y/D/RT (20, 21, 31, 33,
51, 58)
REPLAY/ADVANCE
(28)
/XK (28)
N/.(28)
STEP / (28)
SLOW / (28)
)(play) F (28)
Y(stop) XL (28)
9(pause) RB (28)
DISPLAY2) XI (21, 31, 33, 44,
58, 86)
0RETURN FB (31, 60)
FT (60)
1)This button is not available
for this model.
2)This button is available for
the “DVD” or “DMPORT”
function. Depending on the
DIGITAL MEDIA PORT
adapter, this button may not
work.

HCD-DZ280/DZ680/HDZ284/HDZ485
15
94GB
Index to Parts and Control (HDZ485)
For more information, refer to the pages indicated in parentheses.
"/(on/standby) (25, 76)
#;(open/close) (32)
$Front panel display (96)
%FUNCTION (28)
&(remote sensor) (8)
'MOVIE/MUSIC indicator (72)
(VOLUME control (32)
)DMPORT BOOSTER (71)
*OPERATION DIAL (32)
+PHONES jack (32)
,AUDIO IN/A.CAL MIC jack (21, 25, 69)
-Play operation buttons (32)
.Disc tray (32)
Front panel
Additional Information
95GB
"SPEAKER jacks (18)
#EZW-T100 slot (62)
$COAXIAL 75ΩFM jack (23)
%TV/VIDEO (AUDIO IN R/L) jacks (20)
&VIDEO OUT jack (19)
'COMPONENT VIDEO OUT jacks (19)
(DMPORT (DIGITAL MEDIA PORT) jack
(21, 61)
)HDMI OUT jack (19)
*TV/VIDEO (DIGITAL IN COAXIAL/
OPTICAL) jacks (20)
*CAUTION
Please do not remove the screws unless you
are installing the EZW-T100.
Rear panel
CENTER
SUBWOOFER
FRONT R FRONT L SUR R SUR L
SPEAKER
HDMI OUT
SPEAKER
COAXIAL 75
FM
ANTENNA
DMPORT
DC5V
0.7A MAX
DIGITAL IN
AUDIO IN
P
B /C B P R /C R YLR
COAXIALOPTICAL
TV/VIDEO
VIDEO
OUT TV/VIDEOCOMPONENT VIDEO OUT
EZW-T100
Screws*
96GB
About the indications in the front panel display
"Playing status
#Flashes when the sleep timer is set.
(73)
$Displays the 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) (55)
&Stereo/Monaural effect (Radio only)
(56)
'Lights up when the S-AIR transmitter
(not supplied) is inserted in the unit
and the system transmits the sound.
(62)
(Lights up when the HDMI OUT jack is
correctly connected to HDCP (High-
bandwidth Digital Content Protection)
compliant device with HDMI or DVI
(Digital Visual Interface) input. (19)
)Current surround format (Except for
JPEG image file)
*Lights up when a Super Audio CD/CD
is loaded. (35)
Front panel display
Additional Information
97GB
Remote control
SNOITPIRCSEDNOTTUBREDROLACITEBAHPLA
Z–PO–A
ANGLE (33)
AUDIO RI (34)
CLEAR FT (37, 56)
D.TUNING XT (56)
DISC SKIP1) FE
DISPLAY XB (57, 74)
DVD MENU XH (39)
DVD TOP MENU RE (39)
DYNAMIC BASS (71)
ENTER XG (70)
FUNCTION +/– (28, 32)
MENU XH (70)
MUTING (32)
NIGHT XE (71)
ONE-TOUCH PLAY FH (59)
PICTURE NAVI RH (42)
PRESET +/– XK (56)
S-AIR MODE 
SLEEP RK (73)
SOUND MODE (72)
SUBTITLE XT (33)
SYSTEM MENU XG (24, 29, 55,
62, 73)
THEATER RL (58)
TOOLS XI (70)
TUNING +/– (55)
TV XM (70)
TV CH +/– XK (70)
TV INPUT X (70)
TV VOL +/– FG (70)
VOLUME +/– (32)
Number buttons RG (35, 55, 70)
</(on/standby) (24, 25, 32)
TV </(on/standby) RM (70)
$/9/Y/D/RT (24, 25, 35, 37,
55, 68)
REPLAY/ADVANCE
(32)
/XK (32)
N/.(32)
STEP / (32)
SLOW / (32)
)(play) F (32)
Y(stop) XL (32)
9(pause) RB (32)
DISPLAY2) XI (25, 35, 37, 48,
68, 98)
0RETURN FB (35, 70)
FT (70)
1)This button is not available
for this model.
2)This button is available for
the “DVD” or “DMPORT”
function. Depending on the
DIGITAL MEDIA PORT
adapter, this button may not
work.

HCD-DZ280/DZ680/HDZ284/HDZ485
16
SECTION 3
DISASSEMBLY
• This set can be disassembled in the order shown below.
3-1. CASE
(Page 17)
3-3. BACK PANEL SECTION
(DZ680/HDZ485)
(Page 18)
SET
3-2. FRONT PANEL SECTION
(Page 17)
3-4. BACK PANEL SECTION
(DZ280/HDZ284)
(Page 18)
3-5. DVD MECHANISM DECK
(Page 19)
3-9. TRAY
(Page 21)
3-6. POWER BOARD,
USB BOARD (DZ280/DZ680)
(Page 19)
3-7. MAIN BOARD,
SPEAKER BOARD
(Page 20)
3-11. MS-203 BOARD
(Page 22)
3-13. OPTICAL PICK-UP
(Page 23)
3-8. IO-SCART BOARD (DZ280/DZ680),
IO-COMPONENT BOARD (HDZ284/HDZ485)
(Page 20)
3-10. BELT
(Page 21)
3-12. BASE UNIT
(Page 22)

HCD-DZ280/DZ680/HDZ284/HDZ485
17
Note: Follow the disassembly procedure in the numerical order given.
3-1. CASE
3-2. FRONT PANEL SECTION
two screws
(case 3 TP2)
two screws
(case 3 TP2)
five screws
(BV/ring)
case
four screws
(+BV3 (3-CR))
front panel section
claw
claw
loading panel
CN4014 (4P)
CN3001 (3P)
wire (flat type)(17 core)
(CN506)
label
tray



HCD-DZ280/DZ680/HDZ284/HDZ485
18
3-3. BACK PANEL SECTION (DZ680/HDZ485)
3-4. BACK PANEL SECTION (DZ280/HDZ284)
CN3000 (2P)
CN101 (4P)
CN102 (2P)
wire (flat type) (11 core) (CN4017)
(DZ680)
wire (flat type) (9 core) (CN4016)
(HDZ485)
wire (flat type) (13 core)
(CN306)
three screws
(+BVTP 3 × 8)
two screws
(+BVTP 3 × 8)
RE back panel section
RB two screws
(+BVTP 3 × 8)
screw
(+BVTP 3 × 8)
RT screw
(+BVTP 3 × 8)
screw
(+B 3 × 6)
CN9010 (2P)
CN3000 (2P)
wire (flat type) (11 core) (CN4017)
(DZ280)
wire (flat type) (9 core) (CN4016)
(HDZ284)
two screws
(+BVTP 3 × 8)
back panel section
two screws
(+BV3 (3-CR))
screw
(+BVTP 3 × 8)
screw
(+BVTP 3 × 8)
screw
(+B 3 × 6)
CN9010 (2P)
three screws
(+BVTP 3 × 8)

HCD-DZ280/DZ680/HDZ284/HDZ485
19
CN1201 (6P)
wire (flat type)(24 core)
(CN1101)
wire (flat type)(5 core)
(CN1202)
two screws
(+BV3 (3-CR))
DVD mechanism deck
screw
(+BV3 (3-CR))
screw
(+BV3 (3-CR))
screw
(+BV3 (3-CR))
cover (CDM-DSY)
screw
(+BV3 (3-CR))
3-5. DVD MECHANISM DECK
3-6. POWER BOARD, USB BOARD (DZ280/DZ680)
CN904 (4P)
CN5201 (5P)
USB board (DZ280/DZ680)
CN906 (13P)
RE three screws
(+PWH 3 × 8)
two screws
(+BVTP 3 × 8)
plate (POW) insulated
bracket (POW-DSY)
RI POWER board
RG three screws
(+PWH 3 × 8)
RH holder PC board
two screws
(+BV3 (3-CR))
screw
(+BV3 (3-CR))
RB screw
(+BV3 (3-CR))
cover (front)
RT cover (rear)

HCD-DZ280/DZ680/HDZ284/HDZ485
20
3-8. IO-SCART BOARD (DZ280/DZ680), IO-COMPONENT BOARD (HDZ284/HDZ485)
3-7. MAIN BOARD, SPEAKER BOARD
CN5301 (8P)
two screws
(+BV3 (3-CR))
three screws
(+BV3 (3-CR))
RB eight screws
(+BV3 (3-CR))
RT MAIN board
heat sink section
six radiation sheets
radiation (HDZ485)
SPEAKER board
wire (flat type) (17 core) (CN503)
(HDZ284/HDZ485)
wire (flat type) (19 core) (CN504)
(DZ280/DZ680)
wire (flat type) (17 core) (CN472)
(HDZ284/HDZ485)
wire (flat type) (19 core) (CN473)
(DZ280/DZ680)
wire (flat type) (5 core)
(CN303)
two screws
(+BV3 (3-CR))
IO-SCART board (DZ280/DZ680)
IO-COMPONENT board (HDZ284/HDZ485)