Sony CDX-M800 service manual Block Diagram Tuner Section, 21 a

CDX-M800

4-3. BLOCK DIAGRAM — TUNER SECTION —

PJ401–1

L

ELECTRONIC VOLUME

–2

BUS AUDIO

CD

IC401

Q408

R-CH

IN

R

SECTION

4

–5

(Page 21) A

PDL

CDL

42

MDL

LF 25

L

AUDIO OUT

–6

32

AC OUT L

FRONT

TUNER UNIT

Q171

R-CH

R

TUX501

31

AC IN L

–3

CN503

1

ANT

OUT LR 24

L

AUDIO OUT

L

–4

(ANTENNA)

4

40

AML

Q181

R-CH

R

REAR

R

3

AM

12

SDA

13

SCL

OUT SW

17

CN401

15

MUTE

SA CLK

14

MUTE DRIVE

Q470

(SUB OUT(MONO))

SA OUT 16

Q401,402

POWER AMP/POWER SUPPLY

CNP101

IC201

1

SDA 14

FL

5

FL+

SCL 13

SYSTEM CONTROL

12

9

AEP,UK,E MODEL

IC303 (2/3)

3

FL–

RDS DECODER

9

2

IC502

26

VOL ATT

SA IN 43

RL

RL+

RDS

9

16 FM DET

SDA

9

28

I2C SIO

SA CLK 23

11

10

4

OSCD

SCL 10

27

I2C CKO

BUS/AUX

66

SDA

2

7

RL–

5

OSCI

DAVN

8

17

DAVN

ATT 25

4

SCL

4

BEEP 20

16

X501

FR+

4.3MHz

AMP STB 41

22 STB

12

R-CH

FR–

QUALITY

5

80

QUALITY

AMPDIAG 40

25 DIAG

3

RR+

11

XOUT

9

+10V

34 DISP;B

RR–

5

TU MUTE

7

32

TUNER ATT

AU+8V

30 AU8V

SW1 29

X301

AMP REM

MUTE CONDITION

8

73

TU ATT IN

32.768kHz

+5V

37 U-COM

SW2 27

6

XIN

8

ANT REM

S-METER

6

82

VSM

DR+6V

33 MECHA

OSCOUT

11

X302

A+5V

31 SERVO

VP2 6

SDA

17

33

EESIO

EEPROM

OSCIN

13

6MHz

Q103

AU+5V

VP1 20

SCL

16

34

EECKO

D+5V

VP 35

19

17

TEL ATT 24

BATT

F901

ILLUMI

18

AU +8V

+5V REG

16

ILL IN 69

CHECK

• Signal path

Q501

TU+5V

BATT

Q907

13

: FM

ATT

14

ILL

: AM/MW

ACC IN

68

ACC DET

7

ACC

: CD

TEST IN 63

Q102

15

TEST

•R-ch is omitted due to same as L-ch.

22 22