Sony Ericsson XR-C7500RX service manual Block Diagram Main Section, Signal Path

XR-C7500R/C7500RX

7-2. BLOCK DIAGRAM – MAIN Section –

CN13 (1/2)

L

BUS

AUDIO IN

• SIGNAL PATH

: FM

: MW/LW

DIGITAL SIGNAL PROCESSOR,

CENTER VOLTAGE

ELECTRICAL VOLUME

: TAPE PLAY

DIGITAL FILTER,

AUDIO

GENERATOR

R-CH

: BUS AUDIO IN

D/A CONVERTER

+9V

(FOR BIAS)

IC10 (2/2)

IC100

IC41

CN13 (2/2)

35

LIN

AOUTL1

27

FL-OUT

LOW-PASS

34 ACINLF

OUTLF 30

L

MONO FADER

MIXER

AOUTR1

29

RL-OUT

FILTER

33 ACINLR

OUTLR 29

IC301

MUTING

AUDIO

OUTPUT SELECTOR

AOUTR3

54

FR-OUT

R-CH

Q311

OUT FRONT

R-CH

46

RIN

RR-OUT

OUTSWR 25

AOUTL3

52

R-CH

SUBWOOFER+

MONO

R-CH

R

35 SWINR

PHASE CONTROL

FADER

MUTING

Q411

XTLI38

41

L

X100

XTLO38

40

16.9344MHz

MUTING

AUDIO

Q331

OUT REAR

XRST

57

DSPRST

R-CH

R

REDY

REDY

60

XLAT

XLAT

62

MUTING

SCK

SCK

59

Q431

RVDT

RVDT

63

TRDT

TRDT

61

INPUT SELECT, FM MPX

TRDT

25

DSPSI

CN700 (1/2)

RVDT

26

DSPSO

POWER AMP

IC10 (1/2)

(POWER CONNECTOR)

B

R R-CH

AM

SCK

27

DSPCKO

IC700

XLAT

1

35

DSPLAT

5

SEL

LOUDNESS/

SOFT

TONE

ACOUTL

REDY

OUT2+

FL+

1

INPUT MULTIPLEXER

38

78

DSPREADY

LINE

AM

VOLUME

MUTE

CONTROL

DSPRST

12 IN2

9

36

DSPRST

11

DRIVER

OUT2–

3

DSPDATA

IC300

FL–

FD1L–

MUTING

(Page 17)

4		TO	DSPCKO	Q312	4
MUTE	LOUDNESS	OUTPUT		OUT4+ 21
		SELECTOR			FR+

D

TAPE L

SM 18	R-CH	14 IN4	12 FR–
	31 VOLATT	OUT4– 23

(Page 17)

	MUTING
SYSTEM CONTROLLER	Q412
	2

C

AM-IF

12	AMIF	AM/FM	IC600 (2/4)	OUT1+ 9	RL+
			11 IN1
		NOISE			10

(Page 17)

BLANKER	OUT1– 7	RL–
	MUTING
	Q332	3

A

MPX

13 MPX		PILOT	DEMODULATOR					OUT3+ 17	RR+
	L.P.F.		+STEREO ADJUST	L.P.F.	S & H	HIGH-CUT
		CANCELATION	+STEREO BLEND			R-CH	R-CH	15 IN3	11

(Page 17)

MUTING

OUT3– 19

RR–

PLL

PILOT

Q432

DET

AMPATT 105

22

MUTE

D/A

BEEP 15

16

AC GND

CONVERTER

STBY

DIGITAL

QUAL

MULTIPATH

CONTROL

4

DETECTOR

IIC BUS

QUALITY

MPOUT

TESTIN

84

15

SDA

MPIN

LEVEL

TEST

SCL

TELATT

96

LEVEL SHIFT

13

Q600

TEL-ATT

20

21

18

16

15

14

DATA

CLOCK

E

DATA, CLOCK

DATA 70 I2C-SDA

(Page 17)

CLOCK 71 I2C-SCL AMPON

F

LEVEL

AMPON 55	H
	(Page 20)

(Page 17)

G

DSPDATA, DSPCKO

ATT 5	MUTING
	CONTROL SWITCH
	Q700, 701

(Page 19)

05

BUIN I

(Page 20)

18 18