HCD-AZ55D - Sony Audio Service Manual (repair manual)

HCD-AZ55D

In this set, MAIN and S-MASTER boards have been changed in the 
midway of production.
Printed wiring boards, schematic diagrams and electrical parts list of 
new type are described in this supplement-1.
Refer to original service manual for other information

  .................   1

2-1.   Printed Wiring Board - MAIN Board -  ..........................   3
2-2.   Schematic Diagram - MAIN Board (1/5) - .....................   4
2-3.   Schematic Diagram - MAIN Board (2/5) - .....................   5
2-4.   Schematic Diagram - MAIN Board (3/5) - .....................   6
2-5.   Schematic Diagram - MAIN Board (4/5) - .....................   7
2-6.   Schematic Diagram - MAIN Board (5/5) - .....................   8
2-7.   Printed Wiring Board 
 

- S-MASTER Board (Component Side) - .......................   9

2-8.   Printed Wiring Board 
 

- S-MASTER Board (Conductor Side) - .........................   10

2-9.   Schematic Diagram - S-MASTER Board (1/4) - ............   11
2-10.  Schematic Diagram - S-MASTER Board (2/4) - ............   12
2-11.  Schematic Diagram - S-MASTER Board (3/4) - ............   13
2-12.  Schematic Diagram - S-MASTER Board (4/4) - ............   14

  ..............................   15

HCD-AZ55D

Note:
•  All capacitors are in 

μF unless otherwise noted.  (p: pF)

  50 WV or less are not indicated except for electrolytics 

and tantalums.

•  All resistors are in 

Ω and 

1

/

4

 W or less unless otherwise 

specifi ed.

•      

f : 

internal 

component.

• 

2 : nonfl ammable resistor.

• 

C : panel designation.

• 

A : B+ Line.

• 

B : B– Line.

 

no mark : TUNER (FM/AM)

  (        ) : DVD PLAY
  <       > : TAPE PLAY
  {        } : REC
      

*

    : Impossible to measure

•  Voltages are taken with a VOM (Input impedance 10 

M

Ω).

  Voltage variations may be noted due to normal production 

tolerances.

• Signal path.
 

F : 

AUDIO

 

f : 

TUNER 

(FM/AM)

 

d : 

TAPE 

PLAY

 

G : 

REC

 

h  : VIDEO/SAT OUT

 

k  : VIDEO/SAT IN

 

O  : DMPORT INPUT

 

N  : MIC INPUT

• Abbreviation
  E12 

: 220V – 240V AC area in E model

  E13 

: 220V – 230V AC area in E model

  E15 

: Iranian model

 KR  : 

Korean 

model

 PH  : 

Philippines 

model

 SP  : 

Singapore 

model

 TH  : 

Thai 

model

Note:
• 

X  : Parts extracted from the component side.

• 

Y  : Parts extracted from the conductor side.

•      

f   : Internal component.

• 

 : Pattern from the side which enables seeing.

  (The other layers' patterns are not indicated.)

•  Indication of transistor.

 

C

B

E

Q

 

B

C E

Q

The components identifi ed by mark 

0 or dotted line with 

mark 

0 are critical for safety. 

Replace only with part number specifi ed.

Caution:
Parts face side:
(Conductor Side)
Pattern face side: 
(Component Side)

Parts on the parts face side seen from   
the pattern face are indicated.
Parts on the pattern face side seen from   
the parts face are indicated.