DAV-HDZ273, HCD-HDZ273 - Sony Audio Service Manual (repair manual)

dav-hdz273, hcd-hdz273 service manual
Model
DAV-HDZ273 HCD-HDZ273
Pages
80
Size
4.65 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
dav-hdz273-hcd-hdz273.pdf
Date

Read Sony DAV-HDZ273 / HCD-HDZ273 Service Manual online

SERVICE MANUAL
Sony Corporation
Audio Business Group
Published by Sony Techno Create Corporation
HCD-HDZ273
SPECIFICATIONS
DVD RECEIVER
9-889-097-01
2008D04-1
© 
2008.04
US Model
Ver. 1.0  2008.04
Model Name Using Similar Mechanism
HCD-DZ260/DZ270/HDZ278
Mechanism Type
CDM85-DVBU102
Optical Pick-up Name
KHM-313CAA
•  HCD-HDZ273 is the amplifi er, DVD/CD and tuner section in 
DAV-HDZ273.
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 from DTS, Inc.
 
“DTS” and “DTS Digital Surround” are registered trademarks 
of DTS, Inc.
AUDIO POWER SPECIFICATIONS
for the US model
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
 
With 3 ohms loads, both
 
channels driven, from 180
 
- 20,000 Hz; rated 84 watts
 
per channel minimum
 
RMS power, with no more
 
than 0.7% total harmonic
 
distortion from 250 milli
 
watts to rated output.
Amplifi er Section
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)
* Depending on the decoding mode settings and the
  source, there may be no sound output.
Inputs (Analog)
TV/VIDEO (AUDIO IN) 
Sensitivity: 450/250 mV
AUDIO IN 
Sensitivity: 250/125 mV
Inputs (Digital)
TV/VIDEO (COAXIAL IN/OPTICAL IN)
 
Impedance: 75 ohms/-
Outputs (Analog)
Phones 
Accepts low- and high-
 impedance 
headphones.
Super Audio CD/DVD System
Laser Semiconductor 
laser
 (Super 
Audio 
CD/DVD: 
λ
 
= 650 nm)
 (CD: 
λ = 790 nm)
 Emission 
duration:
 continuous
Signal format system 
NTSC
 
Tuner Section
System 
PLL quartz-locked digital
 synthesizer
FM tuner section
Tuning range 
87.5 MHz - 108.0 MHz
 
(100 kHz step)
Antenna (aerial) 
FM wire antenna (aerial)
Antenna (aerial) terminals  75 ohms, unbalanced
Intermediate frequency 
10.7 MHz
AM tuner section
Tuning range 
530 kHz - 1,710 kHz (with
 
the interval set at 10 kHz)
 
531 kHz - 1,710 kHz (with
 
the interval set at 9 kHz)
Antenna (aerial) 
AM loop antenna (aerial)
Intermediate frequency 
450 kHz
Video Section 
Outputs 
VIDEO: 1 Vp-p 75 ohms
 COMPONENT:
 
Y: 1 Vp-p 75 ohms
 
P
B
/C
B
, P
R
/C
R
: 0.7 Vp-p
 75 
ohms
 
HDMI OUT: Type A (19 pin)
General
Power requirements 
120 V AC, 60 Hz 
Power consumption 
On: 155 W
 
Standby: 0.3 W (at the
 
Power Saving mode)
Output voltage (DIGITAL MEDIA PORT) 
 DC 
V
Output current (DIGITAL MEDIA PORT) 
 700 
mA
Dimensions (approx.) 
430 mm 
× 66 mm × 385 mm 
 (17 
in 
× 2
 5/8
 in 
× 15
 1/4
 in)
 
(w/h/d) incl. projecting parts
Mass (approx.) 
4.2 kg (9 lb 5 oz)
Design and specifi cations are subject to change without 
notice.
HCD-HDZ273
2
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 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.
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)
Fig. A.  Using an AC voltmeter to check AC leakage.
1.5 k
Ω
0.15
μF
AC
voltmeter
(0.75 V) 
To Exposed Metal 
Parts on Set 
Earth Ground
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.
CAUTION
Use of controls or adjustments or performance of procedures other than 
those specifi ed herein may result in hazardous radiation exposure.
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.
HCD-HDZ273
3
Playable Discs
1)
MP3 (MPEG1 Audio Layer 3) is a standard format defined by ISO/MPEG which compresses audio data. MP3 files
must be in MPEG1 Audio Layer 3 format.
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• 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)
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• Super VCD
• CD-R/CD-RW/CD-ROM in video
CD format or Super VCD format
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• CD-R/CD-RW in audio CD format
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DATA CD format, containing MP3
files
1)
and JPEG image files
2)
, and
conforming to ISO 9660
3)
Level 1/
Level 2, or Joliet (extended format)
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DVD+R/DVD+RW in DATA
DVD format, containing MP3
files
1)
and JPEG image files
2)
, and
conforming to UDF (Universal
Disk 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).)
3)
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.
HCD-HDZ273
4
The system cannot play the following discs:
• CD-ROM/CD-R/CD-RW other than those recorded in the formats listed on page 5
• 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
• DVD-RAM
Also, the system cannot play the following discs:
• A DVD VIDEO with a different region code (page 7)
• 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.
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 discs 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 playable 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.
Example of discs that the system cannot play
Note about CD-R/CD-RW/DVD-R/DVD-RW/DVD+R/DVD+RW
• 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.
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.
About Multi Session CD
Region code
ALL
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