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

CDX-GT50W/GT500/GT500EE/GT550

SECTION 3

DIAGRAMS

3-1. BLOCK DIAGRAM — CD SECTION —

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

• Signal Path

DETECTOR

: CD PLAY

PD1

PD2

RFO 89

96

FPI2

RFEQO 83

81 RFI

88 AGCI

LO

30

CD-L

PD2

PD1

82 RFRPI

RO

27

R-CH

94

FNI2

97 FPI1

AMP

95 FNI1

RF AMP,DIGITAL SERVO,

UNISI 56

UNI SI

RXD 25

DIGITAL SIGNAL PROCESSOR

I-V

IC2

UNISO 57

UNI SO

E

E

TXD 26

100 TNI

RFRP

3

2

RFZI

LINK OFF 59

LINK OFF

F

F

98 TPI

TEI

6

TEZI

UNICKI 58

UNI CLK

7

BUS ON 50

BUS ON

PIO3

51

37

DEC XMUTE

BU IN 51

B/U CHECK

PIO0

48

30

DEC INT

A ATT 60

ATT

LASER DIODE

MSTBY

36

27

DEC SSTBY

AUTOMATIC

ZDET

58

15

CD ZDET

RSTX 75

SYS RST

/RST

37

14

CD XRST

LD

POWER

91

LDO

MDI 92

/CCE

43

13

CD XCCE

SYSTEM CONTROL

CONTROL

BUCK

42

12

CD BUCK

IC711 (1/3)

PD

LD

Q21

BUS3

41

11

CD BUS3

BUS2

40

10

CD BUS2

EJECT OK 61

89

EJECT OK SW

MON OUT

BUS1

39

8

CD BUS1

MECON 63

99

CDM ON

BUS0

38

7

CD BUS0

CDON 64

98

CD ON

ZMUTE 66

93

Z MUTE

OPTICAL

CD

SYSTEM CONTROL

PICK-UP BLOCK

IC3

(KSS1000E)

FOCUS/TRACKING COIL DRIVE,

SLED/SPINDLE/LOADING

MOTOR DRIVE

MECON CHK 67

MECHA+6V

IC1

2-AXIS DEVICE

FCS+

XI

23

81

X1

16

VO4–

OPIN4–

26

9 F0O

X2

X1

FCS–

16.9344MHz

12MHz

CDON CHK 68

D+3.3V

15

VO4+

OPOUT4 25

XO

24

80

X0

+1.5V REG

(FOCUS)

IC6

(TRACKING)

TRK+

SW1

46

MEC_DSW

+1.5V ON/OFF

5 VOUT VDD

1

18

VO3–

OPIN3– 23

10 TRO

+1.5V

SWITCH

TRK–

(DOWN)

Q2,3

CE

3

17

VO3+

OPOUT3 22

SW2

53

MEC_SELFSW

+1.5V

(SELF)

M902

M

14

VO1+

OPOUT1

4

12 FMO

(SLED)

13

VO1–

OPOUT2

7

13 DMO

SW3

45

MEC_INSW

(DISC IN)

CDON 1

1500MV

M901

M

12

VO2+

SW4

42

MEC_LIMIT

(SPINDLE)

11

VO2–

(LIMIT)

MUTE

21

6

DRVON

M903

M

10

VOL+

FWD

1

43

MEC LOAD

(LOADING)

9

VOL–

REV

28

44

MEC EJECT

AMAIN SECTION

(Page 18)

BMAIN SECTION

(Page 18)

CDISPLAYSECTION

(Page 19)

BU+3.3V

CDX-GT50W/GT500/GT500EE/GT550

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