Sony Ericsson CDX-CA860X, CDX-CA850X service manual Block Diagram Tuner Section

CDX-CA850/CA850X/CA860X

3-3. BLOCK DIAGRAM — TUNER SECTION —

CA850/CA850X

CN302

1

–1

L

CDL

CA860X

–2

BUS AUDIO IN

CD

ELECTRONIC VOLUME

R-CH

R

SECTION

IC301

(Page 23)

4

AUXL

OUT FL 28

3

1

2

13

–5

L

ADSO(L-CH)

IC304

43 MDL

Q306

AUDIO OUT

–6

FRONT

BUFFER

BUFFER

R-CH

R

3

1

33 AC INL

IC308

IC302

38 ACOUTL

OUT RL 27

5

7

7

12

–3

L

TUNER UNIT

Q308

AUDIO OUT

–4

REAR

TUX201

R-CH

R

CN201

(ANTENNA)

1

AM ANT

MPX 10

12 MPX1

CA850/CA850X

CA860X

SUB WOOFER AMP

2

FM ANT

AMDET

8

9 AM

IC310

CN301

16 QUAL

OUTSW 24

1

4

L

14 MP IN

SUB OUT

19 SDA

SA CLK 21

R

20 SCL

17 SM

SA OUT 23

CA850/CA850X

POWER AMP

4

IC351

CN101

Q310

CA850

SYSTEM CONTROL

ATT

MUTE

1

CD

CONTROL

5

FL+

IC501 (2/3)

IC202

SECTION

Q303, 304

31 VOL ATT

12

RF AMP

NOISE

(Page 23)

3

9

2

7

50

QUALITY

SA CLK

3

FL–

Q204

DET

2

SA OUT

DISPLAY

9

RL+

PWON

SECTION

Q205

16 NS MASK

11

(Page 25)

10

BEEP 15

16 BEEP

7

RL–

RDS DECODER

AMP ATT 9

22 MUTE

POWER

IC201

BATT

CONT.

MPT

2

52 MPTH

Q104(1/2),105

DAVN

8

75 DAIN

AMP ON 30

4

STBY

RDS DET

9

16

MPX

SCA 10

TEL ATT 109

4

FR+

SDA

9

ILL IN 110

12

Q103

FR–

LVIN 20

ACC IN 117

ILL

R-CH

3

RR+

XIA 73

11 RR–

X501

ACC

DET

Q102

13

XDA 74

32.768kHz

DET

TEL MUTE

S METER 14

53 VSM

Q101

14

7

ILL

SDA IIC 12

70 I2CSIO

ACC

TEST 108

15

SCL IIC 13

71 I2CCKO

TEST

PW ON 83

5

AMP REM

SDA EEPROM 17

10 E2PSIO

XO 92

SCL EEPROM 18

11 E2PCKO

X502

POWER

POWER

6

XI 93

3.68MHz

BATT

CONT

COM 8.5V

BATT

CONT.

ANT REM

Q801-803

Q104(2/2),106

TUN ON 113

• Signal path

POWER

16 BATT

:CD

COM8.5V

CONT

TU 8V

BATT

Q201,202

CA860X

:FM

+5V

TU 5V

REG

:AM/MW/LW

Q207

+10V

1

3

10V

REG

IC801

24

24