DOWNLOAD Sony DAV-DZ280 / DAV-DZ680 / DAV-HDZ284 / DAV-HDZ485 / HCD-DZ280 / HCD-DZ680 / HCD-HDZ284 / HCD-HDZ485 Service Manual ↓ Size: 5.25 MB | Pages: 102 in PDF or view online for FREE

2010C04-1

© 

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 amplifi er, DVD/CD 

and tuner section in DAV-DZ280/DZ680/HDZ284/HDZ485.

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)

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.

Laser Diode Properties 

Emission Duration:

 Continuous
 

Laser Output: Less than

 44.6

μW

* 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) port:

Maximum current: 

500 mA

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

Outputs 

VIDEO: 1 Vp-p 75 ohms

 

R/G/B: 0.7 Vp-p 75 ohms

 

HDMI OUT: Type A (19

 pin)

Outputs 

VIDEO: 1 Vp-p 75 ohms

 COMPONENT:
 

Y: 1 Vp-p 75 ohms

 

P

B

/C

B

, P

R

/C

R

: 0.7 Vp-p

 75 

ohms

 

HDMI OUT: Type A (19 

 pin)

– 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.

COMPONENTS  IDENTIFIED  BY  MARK  0  OR  DOTTED  LINE  
WITH  MARK  0  ON  THE  SCHEMATIC  DIAGRAMS  AND  IN  
THE  PARTS  LIST  ARE  CRITICAL  TO  SAFE  OPERATION.
REPLACE  THESE  COMPONENTS  WITH  SONY  PARTS 

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

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)

File Extension: 

mp3

Bitrate: 

32 kbps - 320 kbps

Sampling frequencies: 

32/44.1/48 kHz

DZ280/DZ680:

File Extension: 

wma

Bitrate: 

48 kbps - 192 kbps

Sampling frequencies: 

44.1 kHz

File Extension: 

m4a

Bitrate: 

48 kbps - 320 kbps

Sampling frequencies: 

44.1 kHz

DZ280:

File Extension: 

avi/divx

Video codec: 

DivX video

Bitrate: 

8 Mbps (MAX)

Frame rate: 

30 fps

Resolution: 720 

× 576

Audio codec: 

MP3

File format: 

MP4 File Format

File Extension: 

mp4/m4v

Video codec: 

MPEG4 Simple Profi le

 

(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 specifi cations are subject to change
without notice.

SPECIAL  COMPONENT  NOTICE
The components identifi ed by mark 9 contain confi dential infor-
mation.
Strictly follow the instructions whenever the components are re-
paired and/or replaced.

NOTICE  POUR  COMPOSANTS  SPÉCIAUX
Les composants identifi és par la marque 9 contiennent des infor-
mations confi dentielles.
Suivre scrupuleusement les instructions chaque fois qu’un com-
posant est remplacé et / ou réparé.

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)

Ω

μF

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[]

• Abbreviation
  CND  : Canadian model

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)

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.

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 classifi ed 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 specifi ed herein may result in hazardous radia-
tion exposure.