HCD-GT111, HCD-GT222, HCD-GT444, HCD-GT555 - Sony Audio Service Manual (repair manual)

In this set, 9V REG, DISPLAY, MAIN, MIC, SW JACK, TC, TRANS1 and 
USB CONNECTOR boards have been changed in the midway of produc-
tion.
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

  .................   2

2-1.  Printed Wiring Boards - JACK Section - ........................   3
2-2.  Schematic Diagram - JACK Section - ............................   4
2-3.  Printed Wiring Board - MAIN Board - ...........................   5
2-4.  Schematic Diagram - MAIN Board (1/4) - .....................   6
2-5.  Schematic Diagram - MAIN Board (2/4) - .....................   7
2-6.  Schematic Diagram - MAIN Board (3/4) - .....................   8
2-7.  Schematic Diagram - MAIN Board (4/4) - .....................   9
2-8.  Printed Wiring Board - DISPLAY Board - .....................   10
2-9.  Schematic Diagram - DISPLAY Board - ........................   11
2-10.  Printed Wiring Board - TRANS1 Board 
 

(GT111: 120V AC area in E, 240V AC area in E, 

 

Chilean and Peruvian models) - ......................................   12

2-11.  Schematic Diagram - TRANS1 Board 
 

(GT111: 120V AC area in E, 240V AC area in E, 

 

Chilean and Peruvian models) - ......................................   13

2-12.  Printed Wiring Board - TC Board - .................................   14
2-13.  Schematic Diagram - TC Board - ...................................   14

. .............................   15

HCD-GT111/GT222/GT444/GT555

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.

•  Voltages and waveforms are dc with respect to ground 

under no-signal (detuned) conditions.

– TC Board –
  no mark : TAPE PLAY
  (        ) : TAPE REC
– Other Boards –
  no mark : TUNER (FM/AM)
  (        ) : CD PLAY
  ‹‹      ›› : TAPE PLAY
  {        } : TAPE REC
•  Voltages are taken with a VOM (Input impedance 10 

M

Ω).

  Voltage variations may be noted due to normal production 

tolerances.

• Signal path.
 

F : 

TUNER 

(AM/FM)

 

J 

: CD PLAY

 

E : 

USB

 

d : 

TAPE 

PLAY

 

G : 

TAPE 

REC

 

f : 

AUDIO 

IN

 

N : 

MIC

• Abbreviation
 AR  : 

Argentina 

model

  E2 

: 120V AC area in E model

  E3 

: 240V AC area in E model

  E51 

: Chilean and Peruvian models

  MX 

: Mexican model

 RU  : 

Russian 

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.)

The components identifi ed by mark 

0 or dotted line with 

mark 

0 are critical for safety. 

Replace only with part number specifi ed.

1

4

1

8

RV700

NO700

NO701

NO702

C707

C710

C711

C713

C716

C718

C720

JW700

JW701

JW702

JW703

JW704

JW705

JW706

JW707

JW708

JW71

1

R700

R701

R702

R704

R705

R706

R707

R708

R709

R710

R71

1

R712

R713

R714

R715

R716

R718

R719

R720

R721

R722

R723

C700

C701

C702

C703

C704

C705

C708

C709

C712

C714

C715

C717

C719

C721

C722

D701

D702

C1002

C1003

D1001

D1002

D1004

R1001

R1002

R1004

R1005

1

4

1

6

3

1

3

JW1001

JW1003

JW1004

JW1005

NO1000

NO1001

NO1002

CN1000

C1001

D1000

D1003

1

6

L890

C836

C841

JK890

CN890

R

Y890

R900

R873

R876

R880

R902

R901

R893

R894

D890

C080

1

3

NO080

C081

JW890

IC700

MIC BOARD

MIC

MIC

LEVEL

J700

PHONES

J702

L

R

AUDIO

INPUT

J701

(CHASSIS)

1-875-674-

14, 15

(14, 15)

A

B

C

D

E

F

G

H

1

2

3

4

5

6

USB CONNECTOR BOARD 

USB BOARD

(Refer to page 32 on 
original service manual)

(Refer to page 41 on 
original service manual)

CN903

N

1-875-673-

14, 15

(14, 15)

(CHASSIS)

(CHASSIS)

D1000,1003

(USB)

(USB)

SW JACK BOARD

SUB WOOFER

Q

POWERAMP

BOARD

NO800

1-875-681-

12, 13

(12, 13)

(GT444/GT555)

1-876-329-

12, 13

(12, 13)

9V REG BOARD

(TYPE A/GT444(TYPE B):AEP,
RU,UK/GT555(TYPE B):RU)

(GT444(TYPE B):E2,E51,MX,AR/
GT555(YPE B):E2,E51,MX,AR)

 D701 

E-2

 D702 

H-2

 D890 

D-5

 D1000  A-5
 D1001  B-5
 D1002  A-5
 D1003  A-5
 D1004  B-5
 
 IC080 

F-4

 IC700 

B-2

•  Indication of transistor.

 

 

Note: A part of circuit composition of SW JACK board has been changed in the midway of production.
   

SW JACK board that has not been changed appears as TYPE A, and the changed SW JACK board 
appears as TYPE B.

HCD-GT111/GT222/GT444/GT555

USB

(Refer to page
 33 on original
 service manual)

(Refer to page
 43 on original
 service manual)

N

CN903

BOARD

BOARD

POWERAMP

Q

(2/2)

NO800

4.4

4.4

4.4

4.4

4.5

4.4

9

16.8

9

IC700

4.7k

R704

50V

2.2

C720

NO701

4P

R709

1k

50V

C718

0.1

C700

0.1

50V

2.2

C713

1.5k

R706

330p

C719

5

6

7

180p

C722

47p

C712

C714

1000p

NJM4558V-TE2

IC700(3/3)

8

4

NJM4558V

-TE2

IC700(1/3)

3

2

50V

2.2

C716

C705

0.1

C721

0.1

1000p

C717

18k

1000p

C704

100

R715

R700

1k

100k

R716

4.7k

R705

100k

R701

100

R713

C709

220p

C715

1000p

R707

220k

L

R

R710

1k

6.3V

100

C711

10k

R711

R708

220k

16V

C710 10

TP714

1000p

C702

1000p

C708

1

100k

R720

18k

R718

10k

R722

47k

R721

18k

R723

TP712

C707

50V

2.2

R702

10k

10k

R719

TP707

TP706

TP705

TP704

TP703

TP702

TP701

TP700

MC2837

D702

C703

0.1

C701

0.1

TP711

TP713

D701

MC2837

NO700

8P

A+9V

MIC SIGNAL

MIC GND

AUX-L

AGND

AUX-R

AGND

HP/MIC DET

MIC BOARD

NO702

(CHASSIS)

R

L

D

B

6

5

3

1

C

E

H

F

G

4

A

2

11

12

10

8

9

7

NJM4558V

-TE2

IC700(2/3)

MIC AMP

RV700

50k

MIC LEVEL

1

2

3

4

HP-L

HP GND

HP-R

CHASSIS

J700

MIC

J701

AUDIO

INPUT

J702

PHONES

1

2

3

4

5

6

7

8

TP1010

TP1006

TP1002

C1002

10

TP1007

1k

R1004

TP1003

TP1001

TP1000

TP1008

TP1005

1k

R1002

1k

R1001

1k

R1005

TP1009

TP1004

10V

C1001 220

C1003

0.1

TP1011

4P

CN1000

1

4

1L434FV22D0TDF01

D1003

3P

NO1000

MC2837

D1001

MC2837

D1002

1L434FB12E0MDTZ1

D1000

6P

NO1001

MAZ8068GMLS0

D1004

D1000, 1003

(USB)

USB CONNECTOR BOARD

NO1002

(CHASSIS)

(CHASSIS)

(USB)

SEL A

SEL B

USB LED CTRL

VBUS

D-

D+

GND

SHIELD

1

2

3

1

3

4

5

6

MA2J1110GLS0

D890

RY890

1.7uH

L890

(TYPE A/GT444(TYPE B):AEP,
RU,UK/GT555(TYPE B):RU)

(GT444(TYPE B):E2,E51,
MX,AR/GT555(TYPE B):
E2,E51,MX,AR)

10

R894

10

R893

10

R902

10

R901

10

R873

10

R880

10

R876

10

R900

0.1

C836

0.1

C841

+

-

JK890

6P

CN890

SW JACK BOARD

(GT444/GT555)

SW-SP_GND

SW-SP_GND

SW OUT

SW OUT

RLY+

RLY-

SUBWOOFER

1

2

3

4

5

6

3P

NO080

UNREG16V

GND

M+9V

0.1

C080

1

3

2

9V REG BOARD

1

3

2

KIA7809API-U/PF

IC080

+9V REGULATOR

IC080

10V

100

C081

JW890

Note: A part of circuit composition of SW JACK board has been changed in the midway of production.
   

SW JACK board that has not been changed appears as TYPE A, and the changed SW JACK board 
appears as TYPE B.