Sony MHC-DX5 Schematic

MHC-DX5

MANUAL DE SERVIÇO

Brazilian Model

Modelo que usa mecanismo similar Novo

Seção Tipo de mecanismo do CD CDM58-K2BD38

do CD Nome da base e da unidade BU-K2BD38

Nome da unidade óptica KSM-213DAP Seção do Modelo que usa mecanismo similar Novo Toca-Fitas Tipo do Mecanismo de transporte da fita TCM-230MWR11

ESPECIFICAÇÕES

Amplificador

(HCD-BX5 US model only)

Potência de Saída RMS 125 + 125 watts

(4 ohms a 1kHz 10 % THD)

P.M.P.O 2600 W

95 watts per channel minimum RMS power, with no more than 10% total harmonic distortion from 250 milliwatts to rated output.

Entradas

MD/VIDEO (AUDIO) IN: sensibilidade 450mV/50mV (tomada RCA) impedância 47 kilohms MIC: sensibilidade 1mV (minitomada) impedância de 10 kilohms

(6 ohms at 1 kHz, 50 W)

Saídas

PHONES: aceita fone de ouvido de

(minitomada estéreo) 8 ohms ou mais

FRONT SPEAKER aceita impedância de

6 a 16 ohms

Music power output (reference)

170 + 170 watts (6 ohms at 1 kHz, 10% THD)

Other model: HCD-DX5:

The following measured at AC 120, 220, 240 V 50/60 Hz

Reprodutor de Cd's

Sistema Sistema aúdio digital de

disco compacto

Laser Laser semicondutor (780 nm)

Duração da Emissão: Contínua

Saída Laser 44,6 uW*

*Esta saída é o valor medido a uma distância de 200 mm da superfície da lente objetiva no bloco de reprodução

óptica com 7 mm de abertura Resposta de Frequência 2 Hz - 20kHz +-0,5 dB) Comprimento de Onda 780-790 nm Relação Sinal Ruído Maior que 90 dB Faixa dinâmica Maior que 90 dB

Saída Óptica Digital de CD

(tomada de conector quadrado no painel traseiro) Comprimento de Onda 660 nm Nível de Saída -18 dBm

Laser output Max. 44.6 µW*

*This output is the value measured at a distance of 200 mm from the objective lens surface on the Optical Pick-up Block with 7 mm aperture.

— Continued on next page —

SISTEMA COMPACTO DE SOM

MICROFILM

SEÇÃO 7

DIAGRAMAS

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each bloc k.)

Note on Schematic Diagram:

• All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.

• All resistors are in Ω and 1/ specified.

¢

•

• C : panel designation.

• U : B+ Line.

• V : B– Line.

• H : adjustment for repair.

• Voltages and waveforms are dc with respect to ground

• Voltages are tak en with a V OM (Input impedance 10 MΩ).

• Waveforms are taken with a oscilloscope.

• Circled numbers refer to waveforms.

• Signal path.

: internal component.

Note:

The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified.

under no-signal (detuned) conditions. Voltage variations may be noted due to normal produc-

tion tolerances. Voltage variations may be noted due to normal produc-

tion tolerances.

F : FM f : AM E : PB (DECK A) d : PB (DECK B) G : REC (DECK B) J : CD c : digital out

4

W or less unless otherwise

Note:

Les composants identifiés par une marque ! sont critiques pour la sécurité. Ne les remplacer que par une piéce portant le numéro spécifié.

Note on Printed Wiring Boards:

• X : parts extracted from the component side.

• b : Pattern from the side which enables seeing.

• Indication of transistor. C

These are omitted.

Q

B

CE

These are omitted.

Q

B

MHC-DX5

7-1.LOCALIZAÇÃO DAS PLACAS DE CIRCUITO IMPRESSO

MOTOR Board

ADDRESS SENSOR Board

TRANS Board

E

CD SWITCH Board

PANEL Board

LEAF SW Board

HEAD (A) Board

HEAD (B) Board

•FORMAS DE ONDA

DRIVER Board

BD Board

MAIN Board

POWER AMP Board

– BD BOARD –– MAIN BOARD –

1

IC101 yj

CD PLAY MODE

16.9344MHz

2

IC101 ta

CD PLAY MODE

400nsec/div

3

CD PLAY MODE

6.4Vp-p

4

CD PLAY MODE

1.2Vp-p

IC101 ra

approx 200mVp-p

IC101 el

approx 170mVp-p

IC401 qa

STOP MODE

32.768kHz

2

IC401 qd

STOP MODE

16MHz

– PANEL BOARD –

1

IC601 oa

STOP MODE

3

T301 4

TAPE B REC MODE

3.0Vp-p

3.4Vp-p

80.7kHz

120Vp-p

12.5MHz

4.8Vp-p

2121

MHC-DX5

7-2. DIAGRAMAS EM BLOCO

SEÇÃO TUNER/CD

TM601

FM 75Ω

G

AM

1

8

1

ANT IN

1

3

RB641

FE601

OSC OUT

IF OUT

13

1

FM IF

9

IF OUT

12

AM/IF

24

AM OSC

13

VCO STOP

8

IF REQ MUTE

20

AM RF IN

22

AM OSC

23

V REG

AM/FM IF MPX

IC601

AM MIX OUT

FM SD ADJ

TUNED

STEREO

L OUT

R OUT

R-CH

RV611

BUFFER

Q611

IFT601

11

10

18AM IF IN

19

3

6

17

Q602

RF IF AMP

10

1

24

15

18

17

19

FM

XIN

XOUT

FM OSC

VT1 IN

VT1

PD1

PLL

IC651

FM/AM IF

AM OSC

12

FM

7

14

2VCO STOP

8IF REQ

DO

6DO

DI

4DI

CL

CE

CL

5

CE

3

7

8

VT

5

1

3

4

7

8

5

14

4

55

122

1511

67

R601

9

CF601 CF602

+B A+12V

R609

X651

4.5MHz

LPF601

LPF

4

14

13

L-CH

A

MAIN

SECTION

MASTER CONTROL

IC401(1/2)

2

16

24

TUNED

23

STEREO

22

ST MUTE

DO

27

26

28

25

ST DIN

ST DOUT

ST CLK

ST CE

DI

CL

CE

• RCH is omitted

• Signal Path

: FM

: CD

: DIGITAL OUT

OPTICAL PICK-UP

BLOCK

(KSS-213F)

VC

A

B

C

D

E

F

LD

GND

PD

VR

F+

FOCUS

16

COIL

TRACKING

COIL

F-

T+

T-

+5V

Q101

DRIVE

M102 SLED

MOTOR

M101

SPINDLE

MOTOR

DIGITAL SERVO

DIGITAL SIGNAL PROC.

RF AMP

IC103

12

VC

5

6

7

8

11

10

LD

3

4

MOTOR/COIL DRIVE

13

CH1RO

14

CH1FO

11

CH2RO

12

CH2FO

18

CH3RO

RFO

IC102

RFI

FE

TE

CH1RI

CH1FI

CH2RI

CH2FI

CH3RI

16

17

14

13

22LD ON

21HOLD SW

3

2

6

5

23

A

B

C

D

E

F

LD

PD

D/A CONV.

IC101

D OUT

60

51

RFAC

43

RFDC

L OUT

R OUT

SCLK

SCOR

SQSO

SSTP

XTAI

XTAO

72

75

5DATA

7CLOK

6XLAT

2SQCK

9

20

1

27

66

67

R-CH

X101

16.9344MHz

39

FE

41

TE

40

SE

14

XLON

32

FFDR

33

FRDR

30

TFDR

31

TRDR

29

SRDR

S101 LIMIT IN SW

IC201

OPTICAL

DIGITAL

OUT

CD

DIITAL OUT

L OUT

B

MAIN

SECTION

33

CD DATA

37

CD CLK

42

XLT

33

SQ CLK

19

SCOR

32

SQ DATA

BU UP/DOWN SW

MTR CNT2

T SENS

IC701

44

45MTR CNT1

49

46OPEN SW

47CLOSE SW

48

9

MOTOR

DRIVE

7

TBL ADDRESS

4

2

IC711

SENSOR

OPEN/CLOSE

S701

S711

BU UP/

DOWN

M721

M

TURN

MOTOR

M

17

16

CH3FO

CH4RO

24CH3FI

25CH4INS

28

SFDR

26

MDP

3XRST

43

XRST

M

15

CH4FO

MUTE

20

41

HOLD

2222

SEÇÃO PRINCIPAL

MD/VIDEO

(AUDIO)

TUNER

SECTION

CD

SECTION

HEAD

L

R

PB

A

B

J101

DECK-A

DECK-B

L-CH

LOUT

L-CH

R-CH

PB EQ

AMP

IC303

PB EQ

AMP

IC304

RV302

RV303

1

REC/PB SWITCH

IC302

INPUT SELECT

TONE/VOL CONT

IC101

40

VOL OUT2

IN2A

38

IN2C

37

IN2D

DECK PROC.

IC301

REC

48

A

B

46

REC

DOLBY

70

PB

120

B

DOL

PAS

43

PB

40

35

39

21

22

INVOL OUT2

IN2B

DATA

CLOCK

24

Q101,102

REF

1

Q503

SWITCH

REC/PB

HEAD

ERASE

HEAD

16

TC BLOCK

A120/70

B120/70

A HALF

B HALF

A PLAY

B PLAY

A SHUT

B SHUT

A TRG M+

B TRG M+

CAP M H/L

CAP M+

R-CH

RV304

REC BIAS

T301

Q393,394

A TRIG

DRIVE

Q391,392

B TRIG

DRIVE

Q395

CAP MOTOR

SPEED CONT

Q396,397

CAP MOTOR

DRIVE

C332,L301

BIAS TRAP

2

3

BIAS

OSC

Q302,303

57

58

59

60

+6V

A TRIG

B TRIG

CAP M H/L

CAP M CONT

Q301

R CH

TA+12V

Q141

BIAS

91

DC

B SHUT90A SHUT

4

69

B PLAY68A PLAY

A+12V

SWITCH

Q304,305

93

B HALF67A HALF

79

TC RELAY

R-CH

REC

36

EQ

NORM

33

BIAS

CROM

SW

32

39

38

RV301

REC(L) LEVEL

RM ON/OFF

BIAS ON/OFF

NR ON/OFF

22

23

74

73

BIAS

REC MUTE

NR ON/OFF

LM ON/OFF

REC /PB/PASS

24

25

26

72

71

70

TC MUTE

R/PB PAS

MS OUT

AMS IN

X401

XC IN

11

XC OUT

15

X402

16MHz

X IN

13

X OUT

32.768kHz

4

5

10

CLK

DATA

PB A/B

A120/70

B NORM/CROM/METAL

17

16

18

19

77

76

PB A/B

NORM/HIGH

ALC ON/OFF

20

15

78

75

ALC

EQ H/N

MASTER CONTROL

IC401(2/2)

• RCH is omitted

• Signal Path

: PB (DECK A)

: PB (DECK B)

: REC (DECK B)

: FM

: CD

MHC-DX5

VOL OUT2

15

REF

X402

16MHz

X IN

R CH

Q891,892

FAN

DRIVE

3

20

25

26

17

18

19

1

2

100

97

98

96

92

Q941

-V

REG

D541

D901-904

D906-909

TM801

DISPLAY CONTROL

IC601

HEADPHONE

BPF 0

BPF 5

ALL BAND

KEY0

BASS SHIFT LED

FUNCTION LED

KEY1

KEY2

VOL A

VOL B

SIRCS

I2C DATA

I2CCLOCK

WAKE UP

RESET

F974

F975

F1

F2

L

R

FAN

P35

G17

PLAY1-3

EXIST1-3

GROOVE LED

FILE LED

TIMER LED

XOUT

T971

SPEAKER

P1

G1

XIN

J631

PHONS

F1 F2

50

.

52

85

Q606-614

49

LED

DRIVER

33

Q630-635

10

LED

DRIVER

5

11

12

Q621-626

13

LED

14

DRIVER

15REC/PAUSE LED

16SURROUND LED

Q604

LED

28POWER LED

DRIVER

Q605

LED

27

DRIVER

89

X601

12.5MHz

90

F973

J

F971

FL601

FLOURESCENT

INDICATOR TUBE

D611-615 D617,618

S951

D630-632

D601

POWER

D602

TIMER

SELECT

AC IN

IC102

Q101,102

DBFB CONT

DBFB

SWITCH

83

DBFB ON/OFF

5

6

84

7

Q504,505

MUTE CONT

LINE MUTE

100

MUTE Q103

Q503,504

MUTE CONT

87

STK MUTE

24

1

Q503

13

X OUT

82

RELAY H

PROTECT

D822

MUTE Q581

15

30

IIC DATA

POWER

29

IC501

AMP

12

18

IIC CLK

11

D841

7

WAKE UP

CD POWER

RESET

12

J721

MIC 1

AC CUT

Q501

85

Q861

MUTE CONT

Q551

OVER LOAD DETECTOR

Q506,506+B

OVER HEAT DETECTOR

E MODEL ONLY

IC501

RESET

MUTE Q862

Q821,822

PROTECT

DETECTOR

D502

RV722

MIC VOL

IC722 IC722

2

CD D+5V

CD A+5V

RDS D+5V UNSW

AUDIO +5V

A+12V

TC A+12V

MIC A+12V

ST A+12V

TC M+9V

CD M+7V

LED +7V

RY801

Q824,825

RELAY

+7V

Q828,829

PROTECT

SWITCH

+5.6V

CD POWER

SWITCH

IC951

+5V

3

REG

IC921

+12V

3

REG

IC961

+9V

3

REG

IC931

+7V

3

REG

Q615

REG

DRIVE

1

IC602

10

SPEANA

BPF

6

5

4

3

S617,618

S623-628,630-636

FUCTION

KEY

S611-616

S619-621,626,629

FUCTION

KEY

S637-646

FUCTION

KEY

S601

VOLUME

SIRCS IC603

POWER

AMP

17

12

11

-B

+B

-B

Q823

PROTECT

CONT

I

6

IC911 Q911,912

+5V

3

1

REG

D952

D953

D511

RY971

T972

AC IN

EVER +5.6V

D972-975

IC971

+5.6V

3

1

REG

Q971

RELAY DRIVE

2323

7-4. DIAGRAMA ESQUEMÁTICO - SEÇÃO BD

• Veja pág. 21 para formas de onda

• Veja pág. 42 para diagramas em bloco

(Page 29)

MHC-DX5

The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.

Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.

2525

7-6. DIAGRAMA ESQUEMÁTICO - SEÇÃO PRINCIPAL (1/3)

• Veja pág. 44 para diagramas em bloco

330

C628 100P

(Page 29)