DHC-AZ2D, DHC-AZ5D, HCD-AZ2D, HCD-AZ5D - Sony Audio Service Manual (repair manual)

E Model

Australian Model

2005F0579-1
© 2005.06

•

HCD-AZ2D is the amplifier, disc player, tape
deck and tuner section in DHC-AZ2D.

•

HCD-AZ5D is the amplifier, disc player tape
deck and tuner section in DHC-AZ5D.

The following measured at AC 120, 127, 220, 240 V, 
50/60 Hz
DIN power output (rated): 75 + 75 watts

(4 ohms at 1 kHz, DIN)

Continuous RMS power output (reference)
Front speaker:

100 + 100 watts
(4 ohms at 1 kHz, 10% 
THD)

Center speaker:

50 watts (8 ohms at 1 kHz, 
10% THD)

Surround speaker:

50 + 50 watts
(8 ohms at 1 kHz, 10% 
THD)

Subwoofer:

180 watts (2 ohms at 
100 Hz, 10% THD)

The following measured at AC 120, 127, 220, 240 V, 
50/60 Hz
DIN power output (rated): 75 + 75 watts

(4 ohms at 1 kHz, DIN)

Continuous RMS power output (reference)

100 + 100 watts
(4 ohms at 1 kHz, 10% 
THD)

Inputs
VIDEO/SAT IN (audio) (phono jacks):

voltage 250/450 mV, 
impedance 47 kilohms

MIC 1/MIC 2 (phone jacks):

sensitivity 1 mV, 
impedance 10 kilohms 

Outputs
VIDEO/SAT OUT (audio) (phono jacks):

voltage 250 mV, 
impedance 1 kilohm 

VIDEO OUT (phono jack):

max. output level 
1 Vp-p, unbalanced, Sync 
negative, load impedance 
75 ohms

S VIDEO OUT (4-pin/mini-DIN jack):

Y: 1 Vp-p, unbalanced, 
Sync negative,
C: 0.286 Vp-p, load 
impedance 75 ohms

COMPONENT VIDEO OUT:

Y: 1 Vp-p, 75 ohms
P

B

, P

R

: 0.7 Vp-p, 75 ohms

DVD DIGITAL OUT (DHC-AZ2D only)
(Square optical connector jack, rear panel)
Wavelength

660 nm

PHONES (stereo mini jack):

accepts headphones of 
8 ohms  or  more

FRONT SPEAKER:

Use only the supplied 
speaker SS-AZ7D.

SURROUND SPEAKER (HCD-AZ5D only):

Use only the supplied 
speaker SS-RS7D.

CENTER SPEAKER (HCD-AZ5D only):

Use only the supplied 
speaker SS-CT7D.

SUBWOOFER (HCD-AZ5D only):

Use only the supplied 
speaker SS-WG7D.

System

Compact disc and digital 
audio and video system

Laser

Semiconductor laser 
(DVD: 

λ =650 nm, 

CD: 

λ =790 nm)

Emission duration: 
continuous

Frequency response

DVD (PCM 48 kHz):
2 Hz 

− 22 kHz (±1 dB) 

CD: 2 Hz 

− 20 kHz (±1 dB)

Video color system format

Latin American model: 
NTSC
Other models: NTSC, PAL

DVD

Model Name Using Similar Mechanism

NEW

Section

DVD Mechanism Type

CDM86-DVBU101

Optical Pick-up Block Name

KHM-310CAB

Tape deck-A

Model Name Using Similar Mechanism

NEW

Section

Tape Transport Mechanism Type

CMAL5Z230

Tape deck-B

Model Name Using Similar Mechanism

NEW

Section

Tape Transport Mechanism Type

CMAL1Z254A

This system incorporates Dolby

1)

 Digital, Dolby Pro 

Logic (II) adaptive matrix surround decoder, and 
DTS

2)

 Digital Surround System.

1)

Manufactured under license from Dolby 
Laboratories.
“Dolby”, “Pro Logic”, and the double-D symbol are 
trademarks of Dolby Laboratories.

2)

Manufactured under license from Digital Theater 
Systems, Inc. “DTS” and “DTS Digital Surround” 
are registered trademarks of Digital Theater 
Systems, Inc.

– Continued on next page –

Photo: HCD-AZ5D

2

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be

damaged by heat.

• 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.

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

 0

0

This appliance is 
classified as a CLASS 1 
LASER product. This 
marking is located on the 
rear exterior.

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 screen and the front panel display. In this 
case, check the following table.

C 13

The disc is dirty.

,Clean the disc with a soft cloth .

C 31

The disc is not inserted correctly.

,Restart the system, then reinsert 

the disc correctly.

E XX

(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

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range

87.5 

− 108.0 MHz 

(50-kHz step)

Antenna

FM lead antenna

Antenna terminals

75 ohms unbalanced

Intermediate frequency

10.7 MHz 

AM tuner section

Tuning range 
Latin American model:

530 

− 1,710 kHz

(with the interval set at 
10 kHz)
531 

− 1,710 kHz

(with the interval set at 
9 kHz)

531 

− 1,602 kHz 

(with the interval set at 
9 kHz)

Other models:

530 

− 1,710 kHz 

(with the interval set at 
10 kHz)
531 

− 1,602 kHz 

(with the interval set at 
9 kHz)

Antenna

AM loop antenna

Antenna terminals

External antenna terminal

Intermediate frequency

450 kHz

Power requirements
Australian model:

230 

− 240 V AC, 50/60 Hz 

Saudi Arabian model:

120 

− 127 V, 

220 

− 240 V AC, 50/60 Hz

Adjustable with voltage 
selector

Indian and Russian models: 220 

− 240 V AC, 

50/60 Hz

Thai model:

220 V AC, 50/60 Hz

Korean model:

220 V AC, 60 Hz

Other models:

120 V, 220 

− 240V AC, 

50/60 Hz
Adjustable with voltage 
selector

Power consumption
HCD-AZ5D

170 watts

HCD-AZ2D

100 watts

Dimensions (w/h/d)
HCD-AZ5D

Approx. 190 

× 381 × 

317 mm

HCD-AZ2D

Approx. 190 

× 381 × 

317 mm

Mass
HCD-AZ5D

Approx. 6.7 kg

HCD-AZ2D

Design and specifications are subject to change
without notice.

Approx. 6.2 kg

Recording system

4-track 2-channel stereo

Frequency response

50 

− 13,000 Hz (±3 dB),

using Sony TYPE I 
cassette

Saudi Arabian and Russian models:

3

You can play back the following discs on this 
system. Other discs cannot be played back.

The “DVD VIDEO” logo and “DVD-RW” logo are 
trademarks.

DVD VIDEO

DVD-RW

VIDEO CD

Audio CD

CD-R/CD-RW

Your system has a region code printed on the 
back of the unit and will only play DVDs labeled 
with identical region code.

DVDs labeled 

 will also be played on this 

system.
If you try to play any other DVD, the message 
“Playback prohibited by area limitations.” will 
appear on the TV screen. Depending on the 
DVD, no region code indication may be labeled 
even though playing the DVD is prohibited by 
area restrictions.

• CD-ROMs/CD-Rs/CD-RWs other than those 

recorded in the following formats:
− music CD format

− video CD format

− MP3 (MPEG1 Audio Layer-3)/JPEG/

DivX

1)

 format that conforms to ISO9660

2)

 

Level 1/Level 2 or Joliet

• CD-ROMs recorded in PHOTO CD format

• Data part of CD-Extras

• Super Audio CDs
  DVD-ROMs/DVD-Rs/DVD-RWs/DVD+Rs/

DVD+RWs other than those recorded in 
DivX format conforming to Universal Disk 
Format (UDF).

1)

• DVD-ROMs/DVD-Rs/DVD-RWs/DVD+Rs/

DVD+RWs recorded in Multi Session

• DVD-RAMs

• DVD Audio discs
• A DVD with a different region code.
• An 8 cm disc with an adapter

• Discs with non-standard shapes (e.g., heart, 

square, star) cannot be played on this unit. 
Attempting to do so may damage the unit. Do 
not use such discs.

• A disc with paper or stickers on it.

• A disc that has the adhesive, cellophane tape, 

or a sticker still left on it.

1)

Except for DHC-AZ5D Latin American model and 
DHC-AZ2D

2)

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

• In some cases, CD-Rs, CD-RWs, DVD-Rs, 

DVD-RWs, DVD+R or DVD+RW cannot be 
played on this system depending upon the 
recording quality or physical condition of the 
disc, or the characteristics of the recording 
device. Furthermore, the disc will not play if 
it has not been correctly finalized. For more 
information, see the operating instructions for 
the recording device.

• A disc recorded in packet write format cannot 

be played.

Some playback operations of DVDs and VIDEO 
CDs may be intentionally set by software 
producers. Since this system plays DVDs and 
VIDEO CDs according to the disc contents the 
software producers designed, some playback 
features may not be available. Also, refer to the 
instructions supplied with the DVDs or VIDEO 
CDs.

MODEL NO. HCD-AZXX

DVD DECK RECEIVER

AC: 00V        00Hz  00W

SERIAL  NO:

X

Region code

This product is designed to playback 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.

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.

• This system can play Multi Session CDs 

when an MP3 audio track is contained in the 
first session. Any subsequent MP3 audio 
tracks recorded in later sessions can also be 
played back.

• This system can play Multi Session CDs 

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 audio tracks and images in music CD 

format or video CD format are recorded in the 
first session, only the first session will be 
played back.

• CD-R and CD-RW discs recorded in multi-

session that have not ended by “closing the 
session” are not supported.

• With CD-ROMs/CD-Rs/CD-RWs that 

contain DivX video files in addition to MP3 
audio tracks or JPEG image files, the system 
plays only the DivX video files.*

* Except for DHC-AZ5D Latin American model and 

DHC-AZ2D

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.

4

...............................................

5

...................................................................

9

3-1.

Disassembly Flow ........................................................... 11

3-2.

Side Panel (A)/(B) ........................................................... 12

3-3.

Front Panel Section ......................................................... 12

3-4.

Tape Mech Deck (CMAL1Z254A) (Deck-B) ................. 13

3-5.

Top Panel (TC) Section ................................................... 13

3-6.

Tape Mech Deck (CMAL5Z230) (Deck-A) .................... 14

3-7.

DC Fan (M901) ............................................................... 14

3-8.

DVD Mechanism Deck (CDM86-DVBU101) ................ 15

3-9.

Optical Pick-up Block (KHM-310CAB) ......................... 16

3-10. Motor (Pulley) Assy (Loading) (M001) .......................... 16
3-11. Holder (BU) Assy ............................................................ 17
3-12. Lever (BU Lock) ............................................................. 17
3-13. Close Lever ...................................................................... 18
3-14. Lever (DIR), Gear (IDL-B) ............................................. 18
3-15. Chassis (Top) ................................................................... 19
3-16. Lever (Loading-L/R) ....................................................... 20
3-17. Lever (Disc Sensor)/(Disc Stop) ..................................... 21
3-18. Gear (IDL-C) ................................................................... 21

.............................................................. 22

....................... 25

......................... 25

7-1.

Block Diagram – RF Servo/Video Section – ................... 27

7-2.

Block Diagram – Tuner/Tape Section – .......................... 28

7-3.

Block Diagram –  Audio Section – .................................. 29

7-4.

Block Diagram – AMP Section – .................................... 30

7-5.

Block Diagram – Panel/Power Supply Section – ............ 31

7-6.

Printed Wiring Board – DMB10 Board (Side A) – ......... 33

7-7.

Printed  Wiring  Board  – DMB10 Board (Side B) – ...... 34

7-8.

Schematic  Diagram  – DMB10 Board (1/4) – ................ 35

7-9.

Schematic  Diagram  – DMB10 Board (2/4) – ................ 36

7-10. Schematic  Diagram  – DMB10 Board (3/4) – ................ 37
7-11. Schematic  Diagram  – DMB10 Board (4/4) – ................ 38

7-12. Printed  Wiring  Board – MS-214 Board – ...................... 39
7-13. Schematic  Diagram  – MS-214 Board – ........................ 39
7-14. Printed  Wiring  Board – MAIN Board – ........................ 40
7-15. Schematic  Diagram  – Main Board (1/4) – .................... 41
7-16. Schematic  Diagram  – Main Board (2/4) – .................... 42
7-17. Schematic  Diagram  – Main Board (3/4) – .................... 43
7-18. Schematic  Diagram  – Main Board (4/4) – .................... 44
7-19. Printed  Wiring  Board

– S-MASTER Board (Component Side) – ...................... 45

7-20. Printed  Wiring  Board

– S-MASTER Board (Conductor Side) – ........................ 46

7-21. Schematic  Diagram  – S-MASTER Board (1/4) – ......... 47
7-22. Schematic  Diagram  – S-MASTER Board (2/4) – ......... 48
7-23. Schematic  Diagram  – S-MASTER Board (3/4) – ......... 49
7-24. Schematic  Diagram  – S-MASTER Board (4/4) – ......... 50
7-25. Printed  Wiring  Board  – MIC Board – .......................... 51
7-26. Schematic  Diagram  – MIC Board  – ............................. 52
7-27. Printed  Wiring  Boards  – Output Section – ................... 53
7-28. Schematic Diagram  – Output Section – ......................... 54
7-29. Printed  Wiring  Boards  – Display Section – .................. 55
7-30. Schematic Diagram  – Display Section – ........................ 56
7-31. Printed  Wiring  Boards  – Key Section – ........................ 57
7-32. Schematic Diagram  – Key Section – .............................. 58

8-1.

Side  Panel Section .......................................................... 75

8-2.

Front  Panel Section ........................................................ 76

8-3.

Top  Panel (TC) Section .................................................. 77

8-4.

Main  Board Section ........................................................ 78

8-5.

DMB10  Board  Section .................................................. 79

8-6.

Chassis  Section ............................................................... 80

8-7.

DVD  Mechanism  Deck  Section-1
(CDM86-DVBU101) ....................................................... 81

8-8.

DVD  Mechanism  Deck  Section-2
(CDM86-DVBU101) ....................................................... 82

8-9.

DVD  Mechanism  Deck  Section-3
(CDM86-DVBU101) ....................................................... 83

8-10. DVD  Mechanism  Deck  Section-4

(CDM86-DVBU101) ....................................................... 84

................................ 85