Sony Ericsson CDX-M620 service manual Block Diagram Tuner Section, Display Section

Page 35

CDX-M620/M670

4-4. BLOCK DIAGRAM — TUNER SECTION —

AJ1

(ANTENNA)

CN302

–1

L

CD

ATT

–2

BUS AUDIO IN

4

R-CH

R

ELECTRONIC VOLUME

EXCEPT M670:US

SECTION

CDL

IC304

(Page 34)

IC305

–5

4

AUXL

OUT FL 28

3

1

L

43

MDL

Q301

AUDIO OUT

IC310

LINE

M670:US

–6

FRONT

38

ACOUTL

R-CH

R

(Page 36)

5

7

AMP

TUNER UNIT

33

AC INL

–3

TUX201

3

SA CLK

35

OUT RL 27

5

7

L

SA CLK

Q303

AUDIO OUT

DISPLAY SECTION

SA OUT

38

SA OUT

–4

REAR

1

AM ANT

R-CH

MPX 10

13

MPX

EXCEPT M670:US

R

2

FM ANT

AMDET

8

11

AM

CN301

15

MP IN

IC310

L

14

S METER

SUB OUT (MONO)

20

SDA

3

1

SWR

24

R

FM AMP

21

SCL

Q202

17

QUAL

MUTE

Q305

18

EXT ATT

CONTROL

SYSTEM CONTROL

Q310,312

EXCEPT M670:US

POWER AMP

IC501 (2/3)

M670:US

IC309

CN101

1

31

VOL ATT

Q309

IC307

5

FL+

NOISE

FL

6

7

CANCEL

50

QUALITY

3

1

12

9

IC201

Q203

3

FL–

56

NS MASK

PRE

AMP

2

9

RL+

RL

5

7

11

10

EXCEPT M670:US

7

RL–

RDS DECODER

22 MUTE

ST-BY 55

4 STBY

IC202

TEL ATT 16

4

FR+

RDSDET

9

16 MPX

SDA

9

ILL IN 95

12

4

OSCO

SCL 10

ACC IN 81

Q406

R-CH

3

FR–

RR+

X201

ILLUM CHECK

X1A 73

11 RR–

4.3MHz

5

OSCI

MPTH

2

52

MPTH

X501

Q407

ACC CHECK

13

20 LV IN

DAVN

8

75

DAVN

X0A 74

32.768kHz

TEL MUTE

Q405

14

AEP,UK,E

ILL

7

ACC

S METER 14

53

S-METER

TEST IN 84

15

Q402

TEST

SDA 12

70

I2CSDA

PW ON

83

SCL 13

71

I2CSCL

X0

92

5

X503

POWER

POWER

BATT

AMP REM

SDA

17

10

E2PSDA

AUDIO 9V

6

EEPROM

X1

93

3.68MHz 9V

CONT

CONT

ANT REM

SCL

18

11

E2PSCL

Q110,111

Q404

Q401

TUN ON 114

• Signal path

POWER

F901

16 BATT

: FM

9V

CONT

TUNER 8V

BATT

Q107,108

: AM/MW

POWER

DC-DC

-11V

BATT

CONT

1

5

CONVERTER

: CD

Q306-308

8

IC306

•R-ch : same as L-ch.

REG		TUNER 5V		+11V
Q201		TUNER 5V		+11V
Q201

35 35

Image 35

Contents CDX-M620/M670 SpecificationsAEP/UK model Service NotesUS model Diagrams Table of ContentsDisassembly Phase AlignmentUS Model AEP, UK, E Model Section GeneralUS, AEP, UK, E Model US Model AEP, UK, E Model CDX-M620/M670 CDX-M620/M670 US, AEP, UK, E Model CDX-M620/M670 Connection CDX-M620/M670 AEP, UK, E Model Connection CDX-M620/M670 CD Mechanism BLOCK, Front Panel KEY Assy Section DisassemblyFront Panel Assy Inoperative Front Panel Assy NormalMotor Block ASSY, CAM R Assy SUB Panel CD SUB AssyHeat Sink Main BoardLever Section Chassis T SUB AssyShaft Roller Assy Servo BoardOptical PICK-UP Block Floating Block AssyCAM L Section Phase AlignmentARM A-L ASSY, ARM B-L Assy Alignment Between ARM A-L Assy and ARM B-L Assy Motor BlockCAM R ARM A-R ASSY, ARM B-R AssyIC PIN Descriptions Section DiagramsRfdc IC5 CXP84640-072Q CD System Control Servo Board Self SW SYS RST Open KEY 4V SEL IC702 HD643255A36F SUB System Control Main Board Circuit Boards Location Ch same as L-ch Block Diagram CD SectionDisplay Section Block Diagram Tuner SectionBlock Diagram Display Section Waveforms Main Board Waveforms Servo BoardPrinted Wiring Boards CD Mechanism Section IC1 IC5 IC7 IC B/D IC B/D Printed Wiring Boards Main Section CDX-M620/M670 IC B/D IC B/D CDX-M620/M670 CDX-M620/M670 Printed Wiring Board SUB CD Section CDX-M620/M670 LED5 LED14 LED6 LED15 LED7 LED16 Printed Wiring Board KEY SectionSchematic Diagram KEY Section Printed Wiring Board Display Section IC B/D IC102 RN5VD53AA-TL IC Block DiagramsIC62, 901 RRX9000-0601 IC305 TDA7406TRSUB CD Board Section Exploded ViewsChassis Section Cover64 #2 CAM Section106 105 107 Main Board Section113 108 114 107 112 110 115 109 111 104164 165 167 163 162 159 161 160 Front Panel KEY Assy Section171 172 173 170 174 169 168 166Front Panel Dspl Assy Section 262 CD Mechanism MG-383Z-121//K 254253 257 259 251 266 265 264 256 255 263 261 260 267 258309 A-3307-422-A Chassis M Complete Assy CD Mechanism MG-383Z-121//K 304 301 306 307 308 310 314312 313 305303 311 309 302 360 354 355 361 CD Mechanism MG-383Z-121//K 351357 352 359 356 358 353Display Electrical Parts ListSection Display Disc in SW KEY KEY Limit SW Elect MainMain BOARD, Complete AEP,UK,E BuzzerRef. No Description Remark C306 162-965-11 CONNECTOR, Flexible 11P PIN, Connector 16PPLUG, Connector BUS Control PIN, Connector 6PTransistor KRA103S COIL, ChokeInductor Transistor KRC103SEXCEPTM670US Short Description Remark R389 216-829-11 Servo BOARD, Complete Capacitor Main ServoTHERMISTOR, Positive THERMISTOR, Positive TunerTransistor 2SB1197K-T-146-R Resistor ServoCN3 Jumper ResistorServo SUB CD 401 402 404 403 407 408 409 405 406 410 411 412 413414 Revision History