SERVICE MANUAL AEP Model

– 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.

Dolby noise reduction manufactured under license from Dolby Labo-ratories Licensing Corporation.“DOLBY” and the double-D symbol a are trademarks of DolbyLaboratories Licensing Corporation.

XR-5W497RB

– 11 – – 12 –

3-2. BLOCK DIAGRAM — TAPE SECTION —

R-CH

FWD

R-CH

REV

48 181714

37

46

EQAMP

DOLBYNR

21

1916

43

AUTOMUSIC

SENSOR

DOLBYLEVELL-CH

R-CH

MS

ON/OFF

MS-GVRADIO/TAPE

70U/120UR/F

RV431

41

EQ AMP/DOLBY NRIC401

TAPE L

342735

8

9

36

2833

SUB SYSTEM CONTROLIC201 (2/2)

F/RMETALDOLBY

AMS

AMS GAINMUTE

37 INSERT30 SCL31 25SDA32 CRQ26 RESET

29 40

41

TAPE ON

OSC 1

OSC 2

11

12

XI

XO

70E2D68E2CK

19TUNER ON

42CDC-CTL

INDICATOR

D OUT

D IN

CLK

DATACLK

POWERCONTROLQ231,232

56

EEP ROMIC241

LEDDRIVEQ81

CDC DATAIN

Q703

CDC CLKIN

Q704

CDC DATAOUTQ702

POWERSWITCH

Q911,912

X20232.768kHz

X2018MHz

BATT

BATT

BATT

8.5V REGQ233

TU +B

TU 8.5V

D81

TA 5V

04

TA +B

CN451

37

14568

INSERTS-CLK

SW+BSW5V

S-DATAC-REQRESET


BATT

5V REGQ452

TA +B

TA 5V

39

CDC

ISO701 (3/5)

16

17

14

13

CDC +B

CDC-CLT

CDC DOUT

CDC DIN

15CDC CLK

TUNERSECTION A

Signal path : PB

TAPEMECHANISM

– 13 – – 14 –

XR-5W497RB

2-3. BLOCK DIAGRAM — TUNER SECTION —

R-CH

J101(ANTENNA)

2

1

16

1214

1319

20

18AM ANT

FM ANT

8 FM +B

9 +B

10 AM +B

L CH

R CH

AM DETAM IF

SEEKS-METER

SD

5VT22ST-IND11AM IFC21FM IFC6VCO

4DX/LO15WID/NAR

23FM DET

24FORCEDWID/NAR

TUNER UNITTU101

R-CH

IC581

3 1

IC561

12 8

IC521

32

1

Q571

Q140

3 916

AM NOISECANCELIC141

1 73

2 4

5

SOURCE SELECTIC511

R-CH

ISO701 (1/5)

11

19

20

7

12

1112

13

15

14

9 10

SOURCE SELECTIC531

TAPESECTIONA TAPE L

AUDIO L DSPSECTION B

BATT HCHECKQ253

BATT LCHECK

Q251,252

5V REGQ803


RESETIC802



BATT

D252

D251

Q254

2 1VDD B

VDD A

162314

1743

18

TU MUTE

69 SEEK56

5755

S-METER (AM)

S-METER (FM)MULTI PATH

SD

B/U DOWNRESET

VDDP-ON

WAKU-UPBUSY

44CLK45D-IN46D-OUT

CED INCLK

D OUT

XOUT

X IN

15GALA53S-CONTACT

65PDWN

AOUT

XT

XT

SAS SASTASSADCSDOUTDINWERWCK

TASSADX

CSID IN/OUT

WERWCK

66RESET80WR1RD79CE

D0-3 3-6

VDD D

VDD A VDD C

MUTECONTROLQ573,574

S-METERCONTROLQ171,172

38

CE73DO75CLK74DI

AOUTMONO/STEAM IFFM IF 76

RV171S-METER

SUB SYSTEM CONTROLIC201 (1/2)

WID/NAR 1WID/NAR 2

7778

SYNC52ID51D IN50CLK62D OUT63CE61SYR64

ANT ON24

FM MS72

NOISE ON67

NOISE DET54

2345

2291314

FM OSC17AM OSC16DX/ILO11WID/NAR8

1

24FM ON12AM ON11

MPX SYNCID

DOCLDICE

SYR

XO

XI

X1207.2MHz

X2104.332MHz

WID/NARCONTROLQ151,152

Q161

POWERCONTROL

Q101

POWERCONTROL

Q103

FM 8.5V

AM 8.5V

TU8.5V

8.5V REGQ130

VT +B


ANT +B

TU +B

RDS MODULATORIC210

2 18192021222324

12

13

NOISEDET

IC1815 1

APSIC3031 5

Q181

RDS

4

35

53545556

26

1-4

18

47

48

3637394044

4650

TIM CONTROLIC301

X3014.195MHz

221823171511162

TIR DEMODIC302

BATTVDD BVDD A

31

1517

7273 997069 MAIN 1

MAIN 2SUB 2SUB 1

B/U CHECKRESET

VDD P-ON

65 WAKU-UP74 BUSY66 CLK68 D-OUT67 D-IN

82 GALA18 S-CONTACT

AUSE

L

DET

16S-REMOTE

58ANT OPEN

98HOLD

39TEL MUTE

19KLINE/TEL

37RX

38TX

88MODE

26ILL DUTY

SAFECONTROLQ861-863

TEL MUTEDET

Q785,786

SECURITYTX

Q827-829


ILLMIDETQ901

GALAQ703

S-CONTACT

Q714

LEDDRIVEQ31,32

ANT SHORTDETQ135

57ANT OPENANT OPEN

DETQ131-134

SAFE DETIC841

Q815

1 2

BATTF701 35

33

+B

SAFE

30TEL-MUTE

31K-LINE

29GALA

34ILLUMI

32S-CONTACT

SAFE

SYSTEM CONTROLIC801 (1/2)

1

4

RX

TX

6

K-LI

NE

ISO701 (2/5)

ILL DUTYDSP

SECTIONC

Q902

Q906

BATT

BATT

D812

D31-51, 53-56(KEY BACK LIGHT)

S-REMOTE

CDC-L

CDC-R

TEL (+)TEL (–)

04

FM 8.5V

TU 8.5V

AM 8.5V

S-REMOTE

Q705

PLLIC211

PWN

D0-3

RESETWRRDCE

LIN

D802

Signal path : FM : AM : CD

K-LINEIC821

– 15 – – 16 –

XR-5W497RB

2-4. BLOCK DIAGRAM — DSP SECTION —

217

LINEAMPIC602TUNER

SECTION

BAUDIO L ADC DAC

DSP

FL

DACRL

9293

36302935

5 6 34 37 33 26 27

84

81

PD RESE

T

SI SO SCLK

X60116.9344MHz

LPFIC6063 1

LPFIC6043 1

AUDIO DSPIC603

20

8 7 9

15VOL

VOL

DATA

CE CLK

DATA CE CLK

8 7 9

20 15

ELECTRONIC VOLUMEIC605

ELECTRONIC VOLUMEIC606

Q711

Q761

MUTECONTROLQ781,782

DIAGCONTROLQ971,972

AMP MODECONTROLQ960-964

AMPIC721

DIAGNOSTICDETECT

IC301,302

56

SYSTEM CONTROLIC801 (2/2)

AUDIO MUTE34BEEP DA78AMP DIAG81AMP MODE29SP RL OPEN64SP(R) SHORT61SP(F) SHORT

63SP(R) CLIP60SP(F) CLIP

27SP FL OPEN

43CLK42DO41ENO

22ENI

EXAMP ON

DAR52CLK53CE55DAF54

SCLK48DIN46DOUT47RST51PD35WRDY45CS44WRQ50DRDY49

ILLUMI ON89ROT A92ROT B93ON-KEY20TP-KEY86TIM/EJ21

TIM-KEY85EJ-KEY84

KEY-REQ1LCD ON5CE6DATA7CLK8

80

EXAMP NG 76

P-ON 32

+B-AD 25

AUDIO ON 79

X2 10

X1 11

DSP

3 12

AMPIC771

3 12

Q973

Q975

MODE

1

11

46

12DIAG

POWER AMPIC901

MODE

1

11

46

12DIAG

POWER AMPIC902 IC9413

1

1

IC9213

2ND

DISP

LAY

Q707

Q701


EXT AMPCHECKQ816

+B DETD819

BATT

BATT

BATTBATT

D815

9V REGIC811

1 2

4 5V REGQ808


S9V

S5V

AUD +B

D816

X8014.915MHz

S1S2S3(ON)RE1

(ROTARY ENCODER)

TPSET

TIM

(EJECT)

KEY-REQLCD OFF

STBDATA

SCK

LCD1LCD DRIVER

IC1LCD1

LIQUID CRYSTALDISPLAY PANEL

KEY-INMATRIX

S4-25, 27

1614191817

93-1

0032

-90

26-3

1

22-25

COM0-7

SEG7-65

SEG1-6

KEY 1-4

D20-29(LCD BACKLIGHT)

LEDDRIVEQ21,22

LEDCONTROL

Q905ILL DUTYTUNER

SECTIONC

2524

FL (+)FL (–)

2324

FR (+)FR (–)

ISO701 (4/5)

R-CH

R-CH2122

RR (+)RR (–)

2728 RL (+)

RL (–)

8

DOUTCLK

910

CE4

FL3

FR1

RLRRAMP-REM

2

6

SPEAKER

R-CH

R-CH

2NDDISPLAY

LINE OUT

ISO701 (5/5)Q821

Q706

Q705

DIAGDETQ941

DIAGDETQ921

04

DRDYWRQCSWRDY

Signal path : FM

– 46 –

• IC Block Diagrams

IC141 HA12181FP

IC210 LC72720M

IC531 MC14052B

IC821 L9637D

IFAMP LPF

IF AGC

DETECTOR

PULSEDETECTOR

HPF1 LPF AFAMP

AFAGC

OR

HPF

NOISEAGC

PULSEDETECT

1

PULSEDETECT

2

GATE PULSEGENERATORREFERENCE

CURRENTCIRCUIT

SW2

SW1

REFERENCEVOLTAGECIRCUIT

PHASECURRENT

LEVELDIFFERENCEDETECTION SW3

HIGH PASS AMP(WAVEFORM COMP.) SW4

REFERENCECURRENT CIRCUIT

(WAVEFORM COMP.)SW5

BUFFERAMP

11 10 91214 131516

1 2 4 53 6 7 8

GATE PULSE 2

GATE PULSE 1

VCC

GND

IFAG

C

BIAS

1

AF-IN

BIAS

2

PHAS

E

HOLD

GND HP

IF-IN

AFAG

C

IFDE

T

VCC

VTH

GATE

WF

AFOU

T

SYR

CEDI

DO

CL

RDS-ID

SYNC

T7T6VSSD

VDDD

XIN

ANTIALIASINGFILTER

57KHzBPF

(SCF)

PLL(57KHz)

CLOCKRECOVERY(1187.5Hz)

OSC/DIVIDER

DATADECODER

SYNCDETECT-1

SYNCDETECT-2

CCBRAM(24 BLOCK DATA)

MEMORY CONTROL

SYNC/EC CONTROLLERERROR CORRECTION

(SOFT DECISION)

SMOOTHINGFILTER

TEST

CLK(4.332MHz)

VREF

VREF

MPXIN

VDDA

VSSA

FLOUT

CIN

T1T2T3T4T5

XOUT

2

3

4

5

6

7891011

12

1

2223

24

21

20

19

18

1716

13

15

14

+

–

REFRENCEVOLTAGE

1 2 3 4

5678

1.75V

DRIV

ER

DRIV

ER

DRIV

ER

RX TXVCCLO

LI GND

KVS

+ – + –

+ –

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

2X0

X2

VDD

X1

XCOM

X0

X3

A

BVSS

VEE

INH

2X1

2X3

2XCOM

2X2

– 47 –

IC121 LC72146M

IC561 TA2050F

REGISTER

1XOUT

2CE

3DI

4CLK

5DO

6

7

8WIDNARW

9MONO STE

10DX.LO

11AM.ON

12FM.ON

24 XIN

23 VSS

22 AOUT

21 AIN

20 PD0

19 PD1

18 VSS

17 FM.OSC

16 AM.OSC

15 VDD

14 FM.IF

13 AM.IF

CCBI/F

REFERENCEDIVIDER

DATA SHIFT

LATCH

PHASE DETECTORCHARGE PGMP

12BITS PROGRAMMABLEDIVIDER

SWALLOW COUNTER1/16,1/17 4BITS

POWER ONRESET

UNIVERSALCOUNTER

16

N.C

15

R-IN

(–)

14

N.C

13

R-IN

(+)

12

L-IN

(+)

11

N.C

10

L-IN

(–)

9

N.C

+– +–

1

R-OU

T

2

VREF

3

N.C

4

GND

5

N.C

6

VCC

7

N.C

8

L-OU

T

V REF

– 48 –

IC241 S-24C04AFJA

IC301 MSM6688GS-2K

56

SDA

8 VCC

SCL

7 TEST

START/STOP

LOAD

LOAD

R/W

INCCOMP

DIN

DOUT

DETECTION CIRCUIT

HIGH VOLTAGEGENERATOR

SERIALCLOCK

CONTROLCIRCUIT

DEVICE ADDRESSCOMPARATOR

YDECODER

ADDRESSCOUNTER

DATA REGISTER

SELECTOR

X DE

CODE

R

DATA OUTPUT ACKNOWLEDGE

OUTPUTCONTROL CIRCUIT

EEPROM123

A0A1A2

4GND

1234

42414039383736

3231

3029

353433

567

8910

121314

11

15 16 17 18 19 20 21 22 23 24 25 26 27 28

434445474849505253545556 51 46

MCU I/F

STATUSREGISTER

TESTCIRCUIT

12BITADC LPF

12BITDAC

+ - + -

SGCIRCUIT

ADDRESSCONTROLLER

ADPCMANALYZER/

SYNTHESIZER

TIMINGCONTROLLER

OSC DATAI/O

REGISTERCONTROLLER

D0D1D2D3

BUSYRPMVPM

TESTTESTTEST

TESTMCUM

CE

ACON

CS3CS2CS1SADXSADY

PDWNTEST

AGND

RSEL2RSEL1

DGND

TEST

TEST

ADIN

FOUT

AOUT FIN

AMON

DVDD

AVDD SG SG

C

LOUT

LINE

MOU

T

MIN

CE WR

RD RESE

TNA

R

RWCK

DVDD

XT XT WE

DROM

DI/0

CS4

TASSAS

MON

– 49 –

20 19 18 17 16 15 14 13 12 11

1 2 3 4 5 6 7 8 9 10

1dB STEPVOLUME

8dB STEPVOLUME

1dB STEPVOLUME

8dB STEPVOLUME

VCTBUFFERLATCH

SHIFTREGISTER

LATCHCONTROL

ZCDET

+–

+–

INP

1IN

N 1

VCT

1

INAO

1

VRIN

1

OUT

1

N.C.

GND

VCT

VCC

INP

2

INN

2

VCT

2

INAO

2

VRIN

2

OUT

2 CE

DATA CLK

INIT

TIMINGGENERATOR

8,388,608DATAREGISTER

COLUMN DECODER

COLUMN ADDRESSCOUNTER

ROW

DECO

DER

ADDR

ESS

MUL

TIPL

EXER REFRESH ADDRESS

COUNTER

ROW ADDRESSCOUNTER

ROW ADDRESSREGISTER

REFRESH TIMER

I/O C

ONTR

OL

WRITE CLOCKGENERATOR

2345

11

12

13

109

125

24

2322

18

17

16

1514

26TESTRWCK

NCTESTTEST

TESTTEST

DIN

NC

VSS

VCCRS/A

RFSH

SADSAS

TAS

CS

WE

DOUTNC

+–

+–

+–

43EQ-OUT

44EQ-OUT-M120/70

120/70

45NFI (L)

46RIN (L)F/R

T/R

T/R

F/R

47VREF (L)

48FIN (L)

49GND

50GND

51FIN (R)

52VREF (R)

53RIN (R)

54NFI (R)

55EQ-OUT-M

56EQ-OUT

28 NOI

27 MS-GND

26 MA-OUT

25 MSI

24 MS-DET

23 MS-VCC

22 VCC

21 MS-OUTMS AMP

20 D-GND

19 MS-GV

18 R/F

17 70U/120U

16 RADIO/TAPE

15

42

N.C

41

TAI (

L)

40

RIP

39

RAI (

L)

38

N.C

37

PB-O

UT (L

)

36

N.C

35

N.C

34

N.C

33

NR-D

ET (L

)

32

N.C

31 30

MS-

VREF

29

FFI

1

N.C

2

TAI (

R)

3

BIAS

4

RAI (

R)

5

N.C

6

PB-O

UT (R

)

7

N.C

8

N.C

9

N.C

10

NR-D

ET (R

)

11

N.C

12 13

N.C

14

ON/O

FF

DET

DOLBY B NR (L)

DOLBY B NR (R)

LPF

+–

IC302 MSM6684JSDR1 IC605, 607 CXA1846N

IC401 HA12164

– 50 –

81

NC 82

8384

VRDAL 85

DZF2 76

DXF1 77NC 78

AVB 79A-OUT-R2A-OUT-L2

A-OUT-R1A-OUT-L1

80

AVSSAVDD

VRDAHNC

AINR-

86878889

9091929394VCOM

AVDDVRADH

9798

99AVB100NC

VRADLAVSS

9596

2726

28

2930313233

3534

36373839404142434445464748

4950

63 626566 64 61 60 59 58 57 56 55 54 53 52 51

1 2 3 4 5 6 7 8 9 10 11 12 13

SDOU

T2

DVB

DVB

SDIN

2

SDAD

TEST

I1

TEST

IO1

TEST

I2TE

STIO

3

OPCL

PDDA

PDAD PD

RESE

T

SDDA

SDDA

2

14 15 16

SDOU

T3

17

SDOU

T1

18

SDIN

1

19

SMOD

E

20

BCLK

21

LRCK

22

CLKO

23

DVDD

24

DVSS

25

75 74 73 72 71 70 69 68 67

ADC

SDATALRCKBCLKMCLK

VREFL

DZF

VREFH

AOUTRAOUTL

DADC2

A0

WERASCECASRF

SO

DRDYRDY

SISCLK

RQCS

A1A2A3A4

A5A6

A7

A0

SDOUT2

SDIN2

SDOUT3

WERASCECASRFSO

DRDYRDYSISCLK

XTIXTO

DVDD

CSWRQDVSS

DVDD

A1A2A3A4

A5A6

A7

DVSS

DVDD

A16

A15

A14

A13

A12

A11

A10

A9I07

DVSS

DVDD

DZFS

ETDV

SSDV

DD

DVB

DVB

I06

I05

I04

I03

I02

I00

I01

I07

I06

I05

I04

I03

I02

I00

I01

A8

A16

A15

A14

A13

A12

A11

A10 A9 A8

DSP

XTIXTO

BCLK

SDOU

T1SD

IN1

SMOD

E

MCL

K

BCLK

LRCK

CKLO

LRCK

DSPCLKAD/DACLK

Divider

DAC1

SDATALRCKBCLKMCLK

SDATA

LRCK

BCLK

MCLK

VREFL

VREFL

AINL+AINL-AINR+

AINL+AINL-

AINR+AINR-

DZF

VREFH

VREFH

AOUTRAOUTL

INVERTAMP

NON-INVERTAMP

POWERSTAGE

POWERSTAGE

1 2 3 4 5 6 7 8 9 10

INVERTAMP

MUTECONTROLCIRCUIT

DIAGNOSTICCIRCUIT

POWERSTAGE

MUTESWITCH

VP

STANDBYSWITCH

IN-1

GND-

1OU

T-1

(+)

VP1

S-GN

D

VP2

11

MOD

E

12

V-DI

AG

13

IN-2

OUT-

2 (+

)GN

D-2

OUT-

2 (–

)OU

T-1

(–)

NON-INVERTAMP

POWERSTAGE

+ –

IC603 AK7712A

IC901, 902 TDA8563AQ

SERVICE MANUAL AEP Model

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