DOWNLOAD Sony DAV-DZ20 / HCD-DZ20 Service Manual ↓ Size: 4.2 MB | Pages: 72 in PDF or view online for FREE

Model
DAV-DZ20 HCD-DZ20
Pages
72
Size
4.2 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
dav-dz20-hcd-dz20.pdf
Date

Sony DAV-DZ20 / HCD-DZ20 Service Manual ▷ View online

SERVICE MANUAL
Sony Corporation
Home Audio Division
Published by Sony Techno Create Corporation
AEP Model
UK Model
E Model
DVD RECEIVER
9-887-568-03
2007F16-1
© 2007.06
Ver. 1.2  2007.06
HCD-DZ20
HCD-DZ20 is the amplifier, DVD/CD and
tuner section in DAV-DZ20.
SPECIFICATIONS
Model Name Using Similar Mechanism
HCD-DZ230
Mechanism Type
CDM85-DVBU102
Optical Pick-up Name
KHM-313CAA
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.
Amplifier section
Stereo mode (rated)
50 W + 50 W (at 3 ohms,
1 kHz, 1 % THD)
Surround mode (reference)  RMS output power
FL/FR/C/SL/SR*: 67 watts 
(per channel at 3 ohms, 
1 kHz, 10 % THD)
Subwoofer*: 65 watts (at 3 
ohms, 80 Hz, 10 % THD)
* Depending on the sound field settings and the source, 
there may be no sound output.
Inputs (Analog)
TV (AUDIO IN)(AEP, UK models)
Sensitivity: 450/250 mV
DVD system
Laser
Semiconductor laser
(DVD: 
λ = 650 nm)
(CD: 
λ = 790 nm)
Emission duration: 
continuous
Signal format system
Tuner section
System
PLL quartz-locked digital 
synthesizer
FM tuner section
Tuning range
87.5-108.0 MHz (50 kHz 
step)
Antenna (aerial)
FM wire antenna (aerial)
Antenna (aerial) terminals 75 ohms, unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
 Mexican and Latin American models:
530 – 1,710 kHz (with the 
interval set at 10 kHz)
531 – 1,710 kHz (with the 
interval set at 9 kHz)
European, Russian
 
and Middle Eastern models:
531 – 1,602 kHz (with the 
interval set at 9 kHz)
TV/VIDEO (AUDIO IN)(Except AEP, UK models)
Sensitivity: 450/250 mV
Mexican and Latin American models:
NTSC
Other models:
NTSC/PAL
Other models:
531 – 1,602 kHz (with the 
interval set at 9 kHz)
530 – 1,610 kHz (with the 
interval set at 10 kHz)
Antenna (aerial)
AM loop antenna (aerial)
Intermediate frequency
450 kHz
Video section
Outputs
AEP, UK models:
VIDEO: 1 Vp-p 75 ohms
R/G/B: 0.7 Vp-p 75 ohms
Dimensions (approx.)
430 
× 67 × 310 mm (w/h/d) 
incl. projecting parts
Mass (approx.)
3.2 kg
Design and specifications are subject to change 
without notice.
Except AEP, UK models: VIDEO: 1 Vp-p 75 ohms
S VIDEO:
Y: 1 Vp-p 75 ohms
C: 0.286 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
General
Power requirements
Mexican models: 
120 V AC, 60 Hz
Latin American models: 
110 - 240 V AC, 50/60 Hz
Other models: 
220 - 240 V AC, 50/60 Hz
Argentine models:
220 - 240 V AC, 50/60 Hz
Power consumption
On: 80 W
Standby: 0.3 W (at the 
Power Saving mode) 
2
HCD-DZ20
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 viscou-s (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
damaged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of the 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.
This appliance is classified as
a CLASS 1 LASER product.
This marking is located on the
rear of the unit.
MODEL IDENTIFICATION
– Rear Panel –
Model
Part No.
AEP, UK models
2-892-575-0
[]
RU model
2-892-575-1
[]
E32 model
2-892-575-2
[]
MX model
2-892-575-3
[]
E3 model
2-892-575-4
[]
E12 model
2-892-575-5
[]
AR model
2-892-575-6
[]
SP model
2-892-575-7
[]
TH model
3-270-984-0
[]
• Abbreviation
AR : Argentine model
E3
: 220 – 240 V AC area in E model
E12 : 220 – 240 V AC area in E model
E32 : 110 – 240 V AC area in E model
MX : Mexican model
RU : Russian model
SP
: Singapore model
TH
: Thai model
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
Parts No.
SAFETY-RELATED  COMPONENT  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.
Special Component Notice
The components identified by mark 9  contain confidential
information.
Strictly follow the instructions whenever the components are repaired
and/or replaced.
Ver. 1.2
3
HCD-DZ20
TABLE OF CONTENTS
1.
SERVICING NOTE
...................................................
4
2.
GENERAL
...................................................................
8
3.
DISASSEMBLY
3-1.
Disassembly Flow ........................................................... 11
3-2.
Case ................................................................................. 12
3-3.
Front Panel Assy .............................................................. 12
3-4.
FL Board .......................................................................... 13
3-5.
KEY Board, P-SW Board ................................................ 13
3-6.
MAIN Board .................................................................... 14
3-7.
Tuner (FM/AM), IO Board (AEP, UK) ........................... 15
3-8.
Tuner (FM/AM), IO Board (Except AEP, UK) ............... 15
3-9.
DVD Mechanism Deck (CDM85-DVBU102) ................ 16
3-10. Tray .................................................................................. 16
3-11. Belt, MS-203 Board ........................................................ 17
3-12. Optical Pick-up (KHM-313CAA) ................................... 18
4.
TEST MODE
............................................................... 19
5.
ELECTRICAL ADJUSTMENTS
.......................... 23
6.
DIAGRAMS
6-1.
Block Diagram  – RF Section – ....................................... 26
6-2.
Block Diagram  – VIDEO Section – ............................... 27
6-3.
Block Diagram  – AUDIO Section – ............................... 28
6-4.
Block Diagram  – AMP Section – ................................... 29
6-5.
Block Diagram  – POWER Section – .............................. 30
6-6.
Printed Wiring Board  – MAIN Board (Side A) – ........... 31
6-7.
Printed Wiring Board  – MAIN Board (Side B) – ........... 32
6-8.
Schematic Diagram  – MAIN Board (1/8) – ................... 33
6-9.
Schematic Diagram  – MAIN Board (2/8) – ................... 34
6-10. Schematic Diagram  – MAIN Board (3/8) – ................... 35
6-11. Schematic Diagram  – MAIN Board (4/8) – ................... 36
6-12. Schematic Diagram  – MAIN Board (5/8) – ................... 37
6-13. Schematic Diagram  – MAIN Board (6/8) – ................... 38
6-14. Schematic Diagram  – MAIN Board (7/8) – ................... 39
6-15. Schematic Diagram  – MAIN Board (8/8) – ................... 40
6-16. Printed Wiring Board  – MS-203 Board – ....................... 41
6-17. Schematic Diagram  – MS-203 Board – ......................... 41
6-18. Printed Wiring Board  – IO Board – ................................ 42
6-19. Schematic Diagram  – IO Board – .................................. 43
6-20. Printed Wiring Boards  – KEY, FL, P-SW Board – ........ 44
6-21. Schematic Diagram  – KEY, FL, P-SW Board – ............. 45
7.
EXPLODED VIEWS
7-1.
Overall Section ................................................................ 57
7-2.
Front Panel Assy .............................................................. 58
7-3.
DVD Mechanism Deck Section (CDM85-DVBU102) ... 59
8.
ELECTRICAL PARTS LIST
.................................. 60
4
HCD-DZ20
SECTION  1
SERVICING  NOTE
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 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 pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
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)
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  
H
  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  
 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  
 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.
Note about CDs/DVDs
The system can play CD-ROMs/CD-Rs/CD-RWs recorded in the
following formats:
– audio CD format
– VIDEO CD format
– MP3 audio tracks, JPEG image files, and DivX video files* of
format conforming to ISO 9660 Level 1/Level 2, or its extended
format, Joliet
The system can play DVD-ROMs/DVD+RWs/DVD-RWs/
DVD+Rs/DVD-Rs recorded in the following formats:
– MP3 audio tracks, JPEG image files, and DivX video files* of
format conforming to UDF (Universal Disc Format)
* Except for United Kingdom model.
Example of discs that the system cannot play
The system cannot play the following discs:
CD-ROMs/CD-Rs/CD-RWs other than those recorded in the
formats listed on “Note about CDs/DVDs”
CD-ROMs recorded in PHOTO CD format
Data part of CD-Extras
DVD Audios
Super Audio CD
DATA DVDs that do not contain MP3 audio tracks, JPEG
image files, or DivX video files*
* Except for United Kingdom model.
DVD-RAMs
Also, the system cannot play the following discs:
A DVD VIDEO with a different region code
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
Notes 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
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, see 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.
Copyrights
This product incorporates copyright protection technology that is
protected by U.S. patents and other intellectual property rights. Use
of this copyright protection technology must be authorized by
Macrovision, and is intended for home and other limited viewing
uses only unless otherwise authorized by Macrovision. Reverse
engineering or disassembly is prohibited.
This system incorporates with Dolby* Digital and Dolby Pro Logic
(II) adaptive matrix surround decoder and the DTS** Digital
Surround System.
*
Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic”, and the double-D symbol are
trademarks of Dolby Laboratories.
** Manufactured under license from DTS, Inc.
“DTS” and “DTS Digital Surround” are registered trademarks
of DTS, Inc.
Page of 72
Display

Sony DAV-DZ20 / HCD-DZ20 Service Manual ▷ Download

  • DOWNLOAD Sony DAV-DZ20 / HCD-DZ20 Service Manual ↓ Size: 4.2 MB | Pages: 72 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony DAV-DZ20 / HCD-DZ20 in PDF for free, which will help you to disassemble, recover, fix and repair Sony DAV-DZ20 / HCD-DZ20 Audio. Information contained in Sony DAV-DZ20 / HCD-DZ20 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.