Sony XR-5W497RB Manual de usuario

– 1 –

SERVICE MANUAL

AEP Model

XR-5W497RB

FM/AM CASSETTE CAR STEREO

MICROFILM

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.

DolbynoisereductionmanufacturedunderlicensefromDolbyLabo-

ratories Licensing Corporation.

“DOLBY” and the double-D symbol aare trademarks of Dolby

Laboratories Licensing Corporation.

XR-5W497RB

– 11 – – 12 –

3-2. BLOCK DIAGRAM —TAPE SECTION —

R-CH

FWD

R-CH

REV

48 18

AMP

DOLBY

AUTO

MUSIC

SENSOR

DOLBY

LEVEL

L-CH

R-CH

ON/OFF

MS-GV

RADIO/TAPE

70U/120U

R/F

RV431

EQ AMP/DOLBY NR

IC401

TAPE L

SUB SYSTEM CONTROL

IC201 (2/2)

F/R

METAL

DOLBY

AMS

AMS GAIN

MUTE

37 INSERT

30 SCL

31 25

SDA

32 CRQ

26 RESET

29 40

TAPE ON

OSC 1

OSC 2

E2D

E2CK

TUNER ON

CDC-CTL

INDICATOR

D OUT

D IN

CLK

DATA

CLK

POWER

CONTROL

Q231,232

EEP ROM

IC241

LED

DRIVE

Q81

CDC DATA

Q703

CDC CLK

Q704

CDC DATA

OUT

Q702

POWER

SWITCH

Q911,912

X202

32.768kHz

X201

8MHz

BATT

8.5V REG

Q233

TU +B

TU 8.5V

D81

TA 5V

TA +B

CN451

INSERT

S-CLK

SW+B

SW5V

S-DATA

C-REQ

RESET

POWER

CONTROL

Q450,451

BATT

5V REG

Q452

TA +B

TA 5V

CDC

ISO701 (3/5)

CDC +B

CDC-CLT

CDC DOUT

CDC DIN

15 CDC CLK

TUNER

SECTION

Signal path

: PB

TAPE

MECHANISM

– 13 – – 14 –

XR-5W497RB

2-3. BLOCK DIAGRAM —TUNER SECTION —

R-CH

J101

(ANTENNA)

AM ANT

FM ANT

8FM +B

9+B

10 AM +B

L CH

R CH

AM DET

AM IF

SEEK

S-METER

ST-IND

AM IFC

FM IFC

VCO

DX/LO

WID/NAR

FM DET

FORCED

WID/NAR

TUNER UNIT

TU101

R-CH

IC581

IC561

12 8

IC521

Q571

Q140

3 9

AM NOISE

CANCEL

IC141

1 7

2 4

SOURCE SELECT

IC511

R-CH

ISO701 (1/5)

12 13

9 10

SOURCE SELECT

IC531

TAPE

SECTION

ATAPE L

AUDIO L

DSP

SECTION

BATT H

CHECK

Q253

BATT L

CHECK

Q251,252

5V REG

Q803

POWER

CONTROL

Q801,802

RESET

IC802

POWER

CONTROL

Q804,805

POWER

CONTROL

Q236,237

BATT

D252

D251

Q254

2 1

VDD B

VDD A

1623

TU MUTE

69 SEEK

S-METER (AM)

S-METER (FM)

MULTI PATH

B/U DOWN

RESET

VDD

P-ON

WAKU-UP

BUSY

CLK

D-IN

D-OUT

D IN

CLK

D OUT

XOUT

X IN

GALA

S-CONTACT

PDWN

AOUT

SAS SAS

TAS

SAD

DOUT

DIN

RWCK

TAS

SADX

CSI

D IN/OUT

RWCK

RESET

D0-3

3-6

VDD D

VDD A VDD C

MUTE

CONTROL

Q573,574

S-METER

CONTROL

Q171,172

CLK

AOUT

MONO/STE

AM IF

FM IF 76

RV171

S-METER

SUB SYSTEM CONTROL

IC201 (1/2)

WID/NAR 1

WID/NAR 2

SYNC

D IN

CLK

D OUT

SYR

ANT ON

FM MS

NOISE ON

NOISE DET

FM OSC

AM OSC

DX/ILO

WID/NAR

FM ON

AM ON

MPX SYNC

SYR

X120

7.2MHz

X210

4.332MHz

WID/NAR

CONTROL

Q151,152

Q161

POWER

CONTROL

Q101

POWER

CONTROL

Q103

FM 8.5V

AM 8.5V

TU8.5V

8.5V REG

Q130 VT +B

POWER

CONTROL

Q136,137

ANT +B

TU +B

RDS MODULATOR

IC210

2 18

NOISE

DET

IC181

5 1

APS

IC303

1 5

Q181

RDS

1-4

TIM CONTROL

IC301

X301

4.195MHz

TIR DEMOD

IC302

BATT

VDD B

VDD A

73 99

69 MAIN 1

MAIN 2

SUB 2

SUB 1

B/U CHECK

RESET

VDD P-ON

65 WAKU-UP

74 BUSY

66 CLK

68 D-OUT

67 D-IN

82 GALA

18 S-CONTACT

AUSEL

DET

S-REMOTE

ANT OPEN

HOLD

TEL MUTE

KLINE/TEL

MODE

ILL DUTY

SAFE

CONTROL

Q861-863

TEL MUTE

DET

Q785,786

SECURITY

Q827-829

POWER

CONTROL

Q825,826

ILLMI

DET

Q901

GALA

Q703

S-

CONTACT

Q714

LED

DRIVE

Q31,32

ANT SHORT

DET

Q135

ANT OPEN

DET

Q131-134

SAFE DET

IC841

Q815

1 2

BATT

F701 35

SAFE

TEL-MUTE

K-LINE

GALA

ILLUMI

S-CONTACT

SAFE

SYSTEM CONTROL

IC801 (1/2)

K-LINE

ISO701 (2/5)

ILL DUTY

DSP

SECTION

Q902

Q906

BATT

D812

D31-51, 53-56

(KEY BACK LIGHT)

S-REMOTE

CDC-L

CDC-R

TEL (+)

TEL (–)

FM 8.5V

TU 8.5V

AM 8.5V

S-

REMOTE

Q705

PLL

IC211

PWN

D0-3

RESET

LIN

D802

Signal path

: FM

: AM

: CD

K-LINE

IC821

– 15 – – 16 –

XR-5W497RB

2-4. BLOCK DIAGRAM — DSP SECTION —

LINE

AMP

IC602

TUNER

SECTION

AUDIO L ADC DAC

DSP

DAC RL

5 6 34 37 33 26 27

RESET

SCLK

X601

16.9344MHz

LPF

IC606

3 1

LPF

IC604

3 1

AUDIO DSP

IC603

8 7 9

VOL

DATA

CLK

DATA

CLK

8 7 9

20 15

ELECTRONIC VOLUME

IC605

ELECTRONIC VOLUME

IC606

Q711

Q761

MUTE

CONTROL

Q781,782 DIAG

CONTROL

Q971,972

AMP MODE

CONTROL

Q960-964

AMP

IC721

DIAGNOSTIC

DETECT

IC301,302

SYSTEM CONTROL

IC801 (2/2)

AUDIO MUTE

BEEP DA

AMP DIAG

AMP MODE

SP RL OPEN

SP(R) SHORT

SP(F) SHORT

SP(R) CLIP

SP(F) CLIP

SP FL OPEN

CLK

ENO

ENI

EXAMP ON

DAR

CLK

DAF

SCLK

DIN

DOUT

RST

WRDY

WRQ

DRDY

ILLUMI ON

ROT A

ROT B

ON-KEY

TP-KEY

TIM/EJ

TIM-KEY

EJ-KEY

KEY-REQ

LCD ON

DATA

CLK

EXAMP NG 76

P-ON 32

+B-AD 25

AUDIO ON 79

X2 10

X1 11

DSP

3 1

AMP

IC771

3 1

Q973

Q975

MODE

DIAG

POWER AMP

IC901

MODE

DIAG

POWER AMP

IC902 IC941

IC921

2ND DISPLAY

Q707

Q701

POWER

CONTROL

Q810,811

EXT AMP

CHECK

Q816

+B DET

D819

BATT

D815

9V REG

IC811

1 2

45V REG

Q808

POWER

CONTROL

Q806,807

S9V

S5V

AUD +B

D816

X801

4.915MHz

S1S2S3

(ON)RE1

(ROTARY ENCODER)

SET

TIM

(EJECT)

KEY-REQ

LCD OFF

STB

DATA

SCK

LCD1

LCD DRIVER

IC1

LCD1

LIQUID CRYSTAL

DISPLAY PANEL

KEY-IN

MATRIX

S4-25, 27

93-10032-9026-31

22-25

COM

0-7

SEG

7-65

SEG

1-6

KEY 1-4

D20-29

(LCD BACKLIGHT)

LED

DRIVE

Q21,22

LED

CONTROL

Q905

ILL DUTY

TUNER

SECTION

24 FL (+)

FL (–)

24 FR (+)

FR (–)

ISO701 (4/5)

R-CH

22 RR (+)

RR (–)

28 RL (+)

RL (–)

DOUT

CLK

10 CE

4FL

3FR

1RL

AMP-REM

SPEAKER

R-CH

2ND

DISPLAY

LINE OUT

ISO701 (5/5)

Q821

Q706

Q705

DIAG

DET

Q941

DIAG

DET

Q921

DRDY

WRQ

WRDY

Signal path

: FM

– 46 –

• IC Block Diagrams

IC141 HA12181FP

IC210 LC72720M

IC531 MC14052B

IC821 L9637D

AMP LPF

IF AGC

DETECTOR

PULSE

DETECTOR

HPF1 LPF AF

AMP AF

AGC

HPF

NOISE

AGC

PULSE

DETECT

PULSE

DETECT

GATE PULSE

GENERATOR

REFERENCE

CURRENT

CIRCUIT

SW2

SW1

REFERENCE

VOLTAGE

CIRCUIT

PHASE

CURRENT

LEVEL

DIFFERENCE

DETECTION SW3

HIGH PASS AMP

(WAVEFORM COMP.) SW4

REFERENCE

CURRENT CIRCUIT

(WAVEFORM COMP.) SW5

BUFFER

AMP

11 10 9

14 13

124 5

36 7 8

GATE PULSE 2

GATE PULSE 1

VCC

GND

IFAGC

BIAS1

AF-IN

BIAS2

PHASE

HOLD

GND

IF-IN

AFAGC

IFDET

VCC

VTH

GATE

AFOUT

SYR

RDS-ID

SYNC

VSSD

VDDD

XIN

ANTIALIASING

FILTER

57KHz

BPF

(SCF)

PLL

(57KHz) CLOCK

RECOVERY

(1187.5Hz)

OSC/DIVIDER

DATA

DECODER

SYNC

DETECT-1 SYNC

DETECT-2

CCB

RAM

(24 BLOCK DATA)

MEMORY CONTROL

SYNC/EC CONTROLLER

ERROR CORRECTION

(SOFT DECISION)

SMOOTHING

FILTER

TEST

CLK(4.332MHz)

VREF

MPXIN

VDDA

VSSA

FLOUT

CIN

XOUT

–

REFRENCE

VOLTAGE

1234

1.75V

DRIVER

VCC

LO LI

GND

–

2X0

VDD

XCOM

VSS

VEE

INH

2X1

2X3

2XCOM

2X2

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