Sony CDX-GT500EE, CDX-GT50W, CDX-GT550 service manual Block Diagram Main Section

CDX-GT50W/GT500/GT500EE/GT550

3-2. BLOCK DIAGRAM — MAIN SECTION —

J200 (1/2)

BUS

AUDIO

L

				ELECTRONIC VOLUME
					IC401
					OUTLR2 16				(L)	SUB
										AUDIO
							MUTE		(R)	OUT
							Q201
CD	A	CD-L	9	SE1L	OUTLR1	19			L	REAR
SECTION					OUTRR1	18	R-CH
(Page 17)		R-CH	10	SE1R				R-CH	R
					OUTLF 20				L	FRONT
					OUTRF 17		R-CH	R-CH	R
							MUTE
			11	DIFFL				MUTE
							Q204	Q205
		R-CH	13	DIFFR

J200

(2/2)

AUDIO

OUT

IN R

J300

(ANTENNA)

R-CH

12 DIFFG

IC2-BUS CONTROLLED POWER AMP

AUX

/MULTIPLE VOLTAGE REGULATOR

TU300

SELECT

IC150

CN100

SWITCH

(TUNER UNIT)

Q200

1

11 IN RL

OUT FL+

5

FL+

9

1 ANT

L-CH

4

7

SE2L

12

IN FL

OUT FL–

3

FL–

R-CH

3

8

SE2R

OUT RL+

9

2

RL+

OUT RL–

7

10 RL–

VCC+8.3V

10

AUDIO+8.3V

MUTE 21

SCL

4

FR+

VDD+5V 11

TU+5V

SCL 22

25 SAIN

12

E2P VDD 15

BU+3.3V

26 SAOUT

SDA 23

SDA

MUTE DRIVE

D252

R-CH

3

FR–

BATT

RR+

Q250,251

11 RR–

TU-SCL

13

SCL

AMP-REM 29

5

AMP-REM

SDA

6

TU-SDA 14

SYSTEM CONTROL

ANT-REM 27

ANT-REM

IC711 (2/3)

SCL

SDA

BATT

F901

16

2

SDA

VP 35

44 SA IN

I2C CKO

33

SDA

SCL

I2C SIO

34

D250

4

SCL

VP1

20

45 SA CKO

VP2

6

17 AUX IN

VOL ATT

9

S-METER

6

39 VSM

ATT

21

AUDIO+B 30

AUDIO+8.3V

TU MUTE

7

12 TU ATT

B.U+B 37

BU+5V

BEEP

7

16 BEEP

SERVO3.3V 31

SERVO+3.3V

E2P SCL 16

25 EEP CKO

AMP STB 26

22 STB

MECHA6V 33

MECHA+6V

E2P SDA 17

24 EEP SIO

DIAG

8

25 DIAG

PANEL+B 34

PANEL+B

MUTE CONDITION

8

53 TU ATT IN

QUALITY

5

38 QUALITY

TEL ATTENATION

13

NS MASK

TEL ATT 74

CHECK

TEL-MUTE

CONTROL

13 NS MASK

Q520

14

ILLUMINATION CHECK

Q300

ILLIN

75

ILL

Q510

ACCESSORY

RDS DEMODULATOR

7

ACC IN 72

CHECK

ACC

IC350

Q500

15

SCL

TEST IN

73

TEST

9 XTI

SCL 11

SDA

X350

SDA 12

BU+3.3V

+3.3V REG

BU+5V

8.664MHz

IC700

10 XTO

16 MPX

INTN 15

56 DAVN

TU+5V

TU+5V REG

AUDIO+8.3V

RDS OUT

9

BUS INTERFACE

Q301

VDDA

VDDD

30 RDS ON

IC450

AEP,UK MODEL

7

1

D453

BATTERY CHECK

8

BU IN

54

10 B/U-C

BATT

3

BATT

Q455

RDS POWER

UNISI 58

8 DATA OUT

BU+3.3V

6

3

CONTROL

UNISO 59

Q350

UNISCK 60

11 CLK IN

DATA I/O

6

5

2

BUSON 87

12 BUS IN

CLK

4

4

1

DISPLAYSECTION D

BUS ON

7

RESET

13 RST

BUS ON

1

SWITCH

(Page 19)

Q453

TH450

D457

BATT

• R-CH is omitted due to same as L-CH.

RST

2

UNISO

9 DATA IN

• Signal Path

BUS ON

: CD PLAY

: FM		UNICLK
: AM/MW/LW	CD	UNISI			LINK
		B B/U CHECK			SWITCH
: AUX	SECTION		DISPLAY		Q454
	(Page 17)	ATT	SECTION	E BATTERY CHECK
			(Page 19)
		LINK OFF

CNJ450

BUS

CONTROL

IN

CDX-GT50W/GT500/GT500EE/GT550

18 18