Sony Ericsson Block Diagram — Tuner Section, CDX-M620/M670, Display Section, • Signal path

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

35 35