Sony Hcd-xb8kw User manual

– 1 –

HCD-XB8KW

SERVICE MANUAL

MICROFILM

HCD-XB8KW is the tuner, deck, CD and

amplifier section in LBT-XB8AVKR.

Model Name Using Similar Mechanism HCD-XB8K

CD Mechanism Type CDM37L-5BD29AL

Base Unit Type BU-5BD29AL

Optical Pick-up Type KSS-213D/Q-NP

Model Name Using Similar Mechanism HCD-XB8K

TapeTransport MechanismType TCM-220WR2

CD

SECTION

TAPE

DECK

SECTION

SPECIFICATIONS

Thai Model

— Continued on next page —

COMPACT DISC DECK RECEIVER

Thisunitissimilarto the HCD-XB8K.For details

not provided in this manual, refer to the service

manual (9-960-942- ) for the HCD-XB8K

already issued.

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– 2 –

CAUTION

Use of controls or adjustments or performance of procedures

other than those specified herein may result in hazardous ra-

diation exposure.

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 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.

Laser component in this product is capable of emitting radiation

exceeding the limit for Class 1.

This appliance is classified as

a CLASS 1 LASER product.

The CLASS 1 LASER PROD-

UCT MARKING is located on

the rear exterior.

This caution

label is located

inside the unit.

NOTES ON HANDLINGTHE 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

repain 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, ob-

serve from more than 30 cm away from the objective lens.

LASER DIODE AND FOCUS SEARCH OPERATION

CHECK

Carry out the“S curve check” in “CDsection adjustment” andcheck

that the S curve waveform is output three times.

SAFETY-RELATED COMPONENTWARNING !!

COMPONENTS IDENTIFIED BY MARK!OR DOTTED LINE

WITH MARK !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.

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– 3 –

DISASSEMBLY

TAPE MECHANISM DECK 6

CASSETTE LID ASSEMBLY 7

CD LID ASSEMBLY 7

CD MECHANISM DECK 8

BASE UNIT 8

DISC TABLE 8

SERVICE MODE 9

MECHANICAL ADJUSTMENT 11

ELECTRICAL ADJUSTMENT

DECK SECTION 11

CD SECTION 14

DIAGRAMS

BLOCK DIAGRAMS

• CD SECTION 17

• DECK SECTION 19

PRINTED WIRING BOARDS AND

SCHEMATIC DIAGRAMS

• CD SECTION 25 to 29

• DECK SECTION 37 to 42

• CD MOTOR SECTION 58 to 60

IC BLOCK DIAGRAMS

• CD SECTION 63

• CD MOTOR SECTION 67

DECK SECTION 67

IC PIN FUNCTIONS

• CD SECTION 69 to 73

• How to Use this Manual

This unit is similar to the HCD-XB8K. For the following details, refer to the service manual (9-960-942- ) for the HCD-XB8K already

issued.

[Table of Reference Items]

SERVICING NOTE

Item HCD-XB8K

Reference Page Item HCD-XB8K

Reference Page

EXPLODED VIEWS

TC MECHANISM SECTION 1

(TCM-220WR2) 82

TC MECHANISM SECTION 2

(TCM-220WR2) 83

TC MECHANISM SECTION 3

(TCM-220WR2) 84

CD MECHANISM SECTION

(CDM37L-5BD29AL) 85

BASE UNIT SECTION

(BU-5BD29AL) 86

ELECTRICAL PARTS LIST

AUDIO board 87

BD board 88

CD MOTOR board 90

LEAF SWITCH board 92

LED board 92

TABLE SENSOR board 101

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– 4 –

SECTION 1

GENERAL

Location of Parts and Controls

$∞Deck B Pbutton

$§ CD SYNC button

$¶ H SPEED DUB button

$• Deck B 6EJECT button

$ª 6OPEN button

%º CD ·button

%¡ CD pbutton

%™ CD Pbutton

%£ DISC SKIP button

%¢ DISC1-DISC5 buttons

%∞NON-STOP button

%§ LOOP button

%¶ FLASH button

%• 1/ALL DISCS button

%ª PLAY MODE button

^º CD 0, )button

^¡ REPEAT button

^™ EDIT button

^£ ≠AMS ±dial

^¢ ˜button

^∞KEY CONTROL indicator

^§ # button

1POWER button

2REC button

3t/CLOCK SET button

4DAILY 1 button

5DAILY 2 button

6SLEEP button

7DISPLAY/DEMO button

8SPECTRUM ANALYZER button

9Display Window

!º ENTER/NEXT button

!¡ TUNER MEMORY button

!™ TUNING MODE button

!£ TUNER/BAND button

!¢ TUNING (+/-) button

!∞ECHO LEVEL knob

!§ STEREO/MONO button

!¶ Equalizer indicators

!• MIC LEVEL knob

!ª MIC 1, MIC 2 jacks

@º DSP button

@¡ WAVE button

@™ PROLOGIC button

@£ KARAOKE PON/MPX button

@¢ P FILE MEMORY button

@∞PHONES jack

@§ EFFECT button

@¶ FUNCTION button

@• GROOVE button

@ª VOLUME control

#º SUPER TWEETER button

#¡ GEQ control buttons

#™ GEQ CONTROL button

#£ DBFB button

#¢ ENTER button

#∞DeckA ª, ·button

#§ DeckA pbutton

#¶ DIRECTION button

#• DOLBY NR button

#ª DeckA 0, )button

$º DeckA 6EJECT button

$¡ Deck B pbutton

$™ Deck B ª, ·button

$£ Deck B 0, )button

$¢ Deck B rREC button

TABLE OF CONTENTS

1. GENERAL ..........................................................................4

2. DISASSEMBLY

2-1. Front Panel ........................................................................... 6

2-2. Main Board ........................................................................... 6

3. DIAGRAMS

3-1. Circuit Boards Location ........................................................7

3-2. Block Diagrams

• KEY CON Section............................................................. 8

• Main Section ......................................................................9

• Power Section ..................................................................11

3-3. Schematic Diagram — Main Section (2/2) —.................... 13

3-4. Printed Wiring Board — Main Section —.......................... 17

3-5. Schematic Diagram — Main Section (1/2) —.................... 19

3-6. Schematic Diagram — Panel Section — ............................23

3-7. Printed Wiring Board — Panel Section — .........................27

3-8. Schematic Diagram — Power Section —........................... 31

3-9. Printed Wiring Board — Power Section — ........................35

3-10. Printed Wiring Board — Sub Amp Section —................. 38

3-11. Schematic Diagram — Sub Amp Section — ................... 41

3-12. Printed Wiring Board — KEY CON Section — ..............44

3-13. Schematic Diagram — KEY CON Section —................. 45

3-14. IC Block Diagrams ........................................................... 46

3-15. IC Pin Functions ............................................................... 49

4. EXPLODEDVIEWS

4-1. Case and Back Panel Section.............................................. 52

4-2. Front Panel Section 1 .......................................................... 53

4-3. Front Panel Section 2 .......................................................... 54

4-4. Chassis Section ................................................................... 55

5. ELECTRICAL PARTS LIST ........................................ 56

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– 5 –

Front Panel

17 8 9 !º !¡ !™ !£

!¢

2

3

4

%™

%£

^¡

^º

%¢

%∞

%§

%¶

^™ ^£

%• %ª

!§

@§

@¶

@•

@ª

#º

#¡

#£

#¢ #™

!¶

5

6

!•

!ª

@£

@∞

#∞

#§

#¶

#•

#ª

$º

$¡ $¶ $ª

%º

$•

$§

$∞

$¢

$™

$£

%¡

!∞

@¡ @º

^¢ ^∞^§

@™

@¢

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– 6 –

2-2. MAIN BOARD

SECTION 2

DISASSEMBLY

Note: Follow the disassembly procedure in the numerical order given.

2-1. FRONT PANEL

1

Three flat type wiers

(CN401,CN402,CN701)

4

Front panel

3

Wire

(Remove the solder)

2

Four screws (BVTP3x8)

5

Back panel

3

Twelve screws (BVTP3x8)

1

Flat type wire (CN1)

!™

Main board

!£

Connector (CN961

)

7

Connector (CN830)

!¡

Connector (CN201)

0

Two screws (BVTP3x8)

6

Flat type wire (CN801)

9

Connector (CN3107)

8

Connector (CN601)

2

Connector (CN601)

4

Power cord

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– 7 – – 8 –

SECTION 3

DIAGRAMS

Note: pA is including in AUDIO board.

3-1. CIRCUIT BOARDS LOCATION 3-2. BLOCK DIAGRAMS

— KEY CON SECTION —

HCD-XB8KW

J761

MIC LEVEL

RV760

MIC 1 31

J762

MIC 2

IC1403

67

1298

5

34

91011

Q1401

789

L OUT

A

MAIN

SECTION

• R CH : Same as Lch

• Signal path

: FM

: MIC

(Page 9)

22 15

MIX

OUT

LPF1

IN

Rch

DATA

CLK

LATCH

K CON

L IN

DATA

CLOCK

STORBE

KEY CONTROL

IC1401

SWITCH

ECHO LEVEL

RV761

IC761

ECHO

LPF1 LPF2

IC760 (2/2)

ECHO AMP

IC760 (1/2)

MIC AMP

09

SPEAKER TERMINAL board

TRANS board

FM/AM TUNER PACK

SUB AMP board

MAIN board

KEY CON board

POWER board

CD-B1 SW board

CD-B2 SW board

TC-B SW board

TC-A SW board

HP/MIC board

PANEL board

DOOR SW board

CD-A SW board

CD-LED board

p

A

MOTOR board

LEAF SWITCH boar

d

BD board

LED board

CD MOTOR board

TABLE SENSOR board

AUDIO board

(including

p

A)

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+ +

BB22

BB12

EQUALIZER / VOLUME

IC201

DBFB

SWITCH

Q201

MUTE

Q254

MUTE

Q602 REAR

REAR

CENTER

FRONT

DBFB

POWER ON/OFF

R RELAY

MUTE

Q601

MUTE

SWITCH

Q120

45 44 43 42 38

40 41

X601

8MHz

67 - 100 • 1 51 - 66

FL601

FLUORESCENT INDICATOR TUBE VF

12

13

XOUT

XIN

37

33

KEY 5

KEY 1

JOG A

JOG B 26

41

LED1

LED18

LED SELECT

SIRCS 39

DISPLAY CONTROL

IC601

DATA

CLOCK

28

27

14 RESET

LED

SWITCH PANEL LED

REMOTE

CONTROL

RECEIVER

IC602

LED

CONTROL

Q601

ROTARY

ENCODER

KEY

MATRIX

6

OPEN

CD POWER

STK MUTE

D+5V

SEG1-35 GR1-16

24

40

VOL A

VOL B ROTARY

ENCODER

VOLUME

S701

S681

S711

Q602,603

42

43

44

45

SPEANA 1

SPEANA 2

SPEANA 3

SPEANA 4

D/A

6

57

AMP

IC861

1

7

3

5

IC603

AMP

REAR

CENTER

FRONT

J101

MICON

INTERFACE EQ

PHONO

IN

L

3

62

69

71

32 33 34

43

65 64

LATCH

REC 2A

PB L

REC L

1

23

4

59

10

6

J101

VIDEO

(AUDIO)

IN

L

INPUT SELECT

IC102

V

TC

ST

CD

B

A

INH 29

30

28

MUTE

PHONO EQ AMP

IC101

Q121

31

9

96

26

27

28

97

94

95

87

88

D951

RESET

SWITCH

Q951

RESET

IC951

+5V

11

10

X701

5MHz

15

20

14

13

09

46

100

CD POWER

STK MUTE

44

45

66

70

69

68

72

COM DOUT

COM CLK

ST DIN

STEREO

TUNED

ST CE

ST MUTE

ST DOUT

RELAY

TC MUTE

A PLAY SW

B PLAY SW

427 LAT

60

61

18

76

73

74

57

48

47

77

36

34

58

TBL L

TBL R

SCOR

T SENS

SENS 2

SENS

XRST

CD CLK

CD DATA

UP SW

SQ CLK

SQ DATA IN

XLT

D+5V

Q201

D201

(DISC No.)

98

2

1

POWER

DBFB H/L

TA MUTE

55

56

IIC DATA

IIC CLK

RESET

AC CUT

X1

X2

XT1

XT2

X702

32.768KHz

MASTER CONTROL

IC701

7

R RELAY

K CON LAT

K CON ON

89

90

91

92

93

82

83

84

85

86

PB A/B

R/P PASS

BIAS

REC MUTE

NR ON/OFF

A SHUT

B SHUT

B HALF

A HALF

EQ H//N

CAP H/N

A TRG

B TRG

TRG LOW

CAP M ON/OFF

4

5

TRAY LED

RELAY REC/PB

ST L

COM DIN

COM DATA

STEREO

TUNED

ST CE

MUTE

L CH

TBL. L

TBL. R

SCOR

T. SENS

SENS 2

SENS

X RST

CD CLK

CD DATA

UP SW

SQ CLK

SQ DATA

X LAT

B

DECK

SECTION

C

CD

SECTION

A SHUT

BIAS ON/OFF

B SHUT

RM ON/OFF

LM ON/OFF

REC/PB PASS

B HALF

A HALF

A PLAY

B PLAY

PB A / B

NORM/HIGH

NR ON/OFF

CAP M H/L

A TRG

B TRG

TRIG H/L

CAP M ON/OFF

INPUT CHANGE

MUTE

CONTROL

Q123,124 54

L-IN C-OUT

S-OUT

L-OUT

DATA

CLK

EN

41

42

40

34

35

37

DOLBY PRO LOGIC

IC601

REAR

FRONT

3

4

2

8

10

2

3

4

DATA

CLK

EN

3

4

2

13

DELAY

IC602

S-IN S-OUT

L-MIX

OUT 16

23

24

XTAL X601

8MHz

XTAL

CENTER

FRONT

41

42 VOL LAT

PL LAT

3

4

1

2

A

KEY CON

SECTION

HCD-XB8K

SERVICE MANUAL

Page 20

(Page 8)

L-IN

61

3

14

2

8

9

4

3

110 15

VOLUME

IC604

OUTLATCH

DATA

CLK

IN

OUT

MUTE

SWITCH

Q912

D

POWER

SECTION

3

54

10

9

11

INPUT SELECT

IC103

DBFB

SWITCH

Q202

67

62

29

46

38

3

10

•

15

•

16

•

18

23

•

25

•

47

L+R

DOOR SW

=AMS +

• R CH: Same as L ch

• SIGNAL PATH

: FM

: CD

: PB

: REC

: VIDEO

(Page 11)

5

6

L IN

DATA

CLK

LATCH

K CON

L OUT

3

4

5

6

FM/AM

TUNER PACK

ENCAPSLATED

COMPONENT

HCD-XB8K

SERVICE MANUAL

Page 18

ST SW

– 9 – – 10 –

HCD-XB8KW

— MAIN SECTION —

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— POWER SECTION —

• R CH : Same as L ch

• SIGNAL PATH

: FM

: SUPER WOOFER

Rch

Q323

Rch

1

2

4

7

PROTECTOR

IC301

PROTECT

SWITCH

Q301

RY402

OVER LOAD

DET

Q601,651

THERMAL

DET

Q670,671

THP670

S. TWEETER

GAIN

CONTROL

Q3101

S. TWEETER

GAIN

AMP

IC3101, 3102

S. TWEETER

CONTROL

SW

Q3105-3107

18 13

113

610

1

RY401 –1

–2

POWER AMP

IC601

OVER LOAD

DET

Q201

Rch

POWER AMP

IC201

REAR

CENTER

FRONT

DBFB

ST SW

STK MUTE

R RELAY D5V

SWITCHED

D5V

SW

Q905 D905

+5V

D7V

A+7.5V

A–7.5V

+5V REG

IC902

+7V REG

IC903

+12V REG

IC904

+12V

ST10V

PRO-LOG 10V +10V REG

IC905

+7V, –7V REG

IC901

Q907

Q901

VFDP

UNREG

–12V

POWER B+

POWER B–

SURR B+

SURR B–

AC

IN

AU/D5V SW

CD POWER

6

1 10

REAR

CENTER

FRONT

SPEAKER

TM401

PHONES

J760

Rch

HP / SP

SWITCHING

Q401,405

S. WOOFER

GAIN CONTROL

Q3104 OVER LOAD

DET

Q3001, 3002

RELAY

DRIVE

Q3108, 3111 +B

PROTECTOR

SWITCH

Q3109

FRONT

REAR

CENTER

SURROUND

SPEAKER

TM402

6

1

2

4

7

PROTECTOR

IC3002

–1

RY3001

RELAY

DRIVE

Q404

Rch

FAN MOTOR

DRIVER

Q961, 962 M

UNREG

–12V

M901

FAN

MOTOR

REAR

CENTER

WOOFER

SYSTEM

J3201

3 1

S. WOOFER

PRE AMP

IC3003

S. WOOFER

MAIN AMP

IC3001

S. WOOFER PRE AMP

IC3103

51

3 1

1

10

2

9

4

3 1

RELAY

DRIVE

Q403

RELAY

CONTROL

Q402

MUTE

SWITCH

Q331

POWER ON/OFF

CD REG

Q904

+5V REG

Q906

+7.5

–7.5 EN

V

CC

V

EE

RECT

D901

VF REG

Q941 RECT

D104,105

RECT

D101

RECT

D102

RECT

D302,303 VF

VF

T501

POWER

TRANSFORMER

MAIN

SECTION

D

09

(Page 10)

+

–

6

Rch

IN OUT

31

2

Rch

– 11 – – 12 –

HCD-XB8KW

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TEL 13942296513 QQ 376315150 892498299

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– 47 –

IC602 LV1016

15 6

+

–

+

20 19 18 17 16 15 14 13

21

22

2324

2 3 4789 10 12

11

+

DEC

IN-FILTER

(40kHz)

VDD

ADM-CONT SRAM

ADM

OUT-FILTER

(7k/5k)

B-NR

DC-OUT

VOL/MUTE

S-TRIM

INV-PHASE

R+DELAY

L+DELAY

A

B

A

B

A

B

A

B

A

B

A

B

A

B

L–R

L+R

(–6dB)

A

B

A.GND

L-OUT

R-OUT

VREF

S-OUT

DELAY-OUT

S-IN

R-IN

L-IN

VCC

NR-DET

ENABLE

DATA

CLK

D.GND

DC-CUT

VDD

OSC

NR-IREF

DC-CUT

L-CH

DATA

LATCH

CIRCUIT

R-CH

DATA

LATCH

CIRCUIT

2

3

4

5

6

7

8

1

15

14

13

12

11

10

9

16

SHIFT RESISTER

(13bit)

STROBE OSC

CIRCUIT

LEVEL

SHIFT

CIRCUIT

LEVEL

SHIFT

CIRCUIT

VSS

OUT

INL-CH

A-GND

NC

CS1

GND

CK

VDD

OUT

IN

A-GND

NC

CS2

STB

DATA

R-CH

ON/OFF CURRENT

LIMITER START

CIRCUIT

VREF

OVER HEAT

PROTECT

ON/OFF

CURRENT

LIMITER

12 3 45 6 7 8 9 10

VCC

VMUTE VCC

VREF

ERROR

AMP

VREF

ERROR

AMP

VO1

VCC

CN1

EN

EN DISPLAY

GND

NC

CN2

VEE

VO2

~_1.8V

~_140uA

COMPARATER

IC901 LA5617

IC604 TC9210P

IC402 LB1641

12 3 45 6 7 8 9 10

GND

MOTOR

DRIVE

NOISE

FILTER

CLAMP

FWD.IN

REV.IN

VCC 1

VCC 2

NOISE

FILTER

MOTOR

DRIVE

MOTOR

DRIVE

MOTOR

DRIVE

T.S.D O.C.P

FWD/REV/STOP

CONTROL LOGIC

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http://www.xiaoyu163.com

Sony HCD-XB8KW User manual

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