SONY CDX-GT300 Service Manual

SECTION 3
DIAGRAMS

3-1. BLOCK DIAGRAM — CD SECTION —

DETECTOR

PD2

PD1

E

F

LASER DIODE

PICK-UP BLOCK

(KSS1000E)

2-AXIS DEVICE

(FOCUS)

(TRACKING)

PD LD

OPTICAL

PD2

PD1

I-V AMP

MON OUT

FCS+

FCS–

TRK+

TRK–

FPI2

96

94

97

95

E

F

VC

VC

LD

AUTOMATIC

CONTROL

M902

(SLED)

M901

(SPINDLE)

M903

(LOADING)

POWER

Q21

M

M

M

100

98

84

91

FOCUS/TRACKING COIL DRIVE,

16

15

18

17

14

13

12

11

10

9

RFO

FNI2

FPI1

FNI1

RFRP

TNI

TPI

VRO

LDO

VO4–

VO4+

VO3–

VO3+

VO1+

VO1–

VO2+

VO2–

VOL+

VOL–

TEI

MDI

SLED/SPINDLE/LOADING

MOTOR DRIVE

IC1

89

3

6

92

OPIN4+
OPIN4–

OPOUT4

OPIN3+
OPIN3–

OPOUT3

OPOUT1

OPOUT2

MUTE

BIAS

FWD

REV

CDX-GT30W/GT300/GT300EE/GT300S/GT350/GT350S

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

• Signal Path

: CD PLAY

83

RFEQO

88

AGCI

RF AMP,DIGITAL SERVO,

DIGITAL SIGNAL PROCESSOR

RFZI

2

TEZI

7

27
26

25

24
23

22

4

7

20

21

1

28

VC

LOAD

IC2

RFI

81
82

RFRPI

BUCK(CLK)

F0O

9

TRO

10

FMO

12

DMO

13

PIO3
PIO0

MSTBY

ZDET

/RST
/CCE

BUS3(SI)

BUS2(SO)

BUS1
BUS0

30

LO

27

RO

XI

XO

R-CH

UNISI

56

RXD

25

UNISO

57

TXD

26

UNICKI

58

BUS_ON

DEC_XMUTE

51
48
36
58
37
43
42
41
40
39
38

23

24

X2

16.934MHz

SW1

(DOWN)

SW2

(SELF)

SW3

(DISC IN)

SW4

(LIMIT)

X1

12MHz

37

DEC_INT

30

DEC_SSTBY

27

CD_ZDET

15

CD_XRST

14

CD_XCCE

13

CD_BUCK

12

CD_BUS3

11

CD_BUS2

10

CD_BUS1

8

CD_BUS0

7

X1

81

X0

80

MEC_DSW

46

MEC_SELFSW

53

MEC_INSW

45

MEC_LIMIT

42

DRVON

6

MEC LOAD

43

MEC EJECT

44

CD

SYSTEM CONTROL

IC3

MECON_CHK

CDON_1500MV

CDON_CHK

BU_IN

RSTX

A_ATT

LINKOFF

EJECT_OK

MECON

CDON

ZMUTE

50
51
75
60
59

SYSTEM CONTROL

61

63
64
66

67

68

+1.5V

1

1.5V_ON

MECHA+6V

SERVO+3.3V

+1.5V ON/OFF

SWITCH

Q2,3

+1.5V

EJECT_OK_SW

89

CDM_ON

99

CD_ON

90

Z-MUTE

93

+1.5V REG

IC6

VOUT

UNI SI

UNI SO

UNI CLK
BUS ON
B/U CHECK
SYS RST
ATT
LINK ON/OFF

IC501 (1/3)

VDD

CE

CD-L

15
3

MAIN

A

SECTION

(Page 22)

MAIN

B

SECTION

(Page 22)

BU+3.3V

CDX-GT30W/GT300/GT300EE/GT300S/GT350/GT350S

21 21

CDX-GT30W/GT300/GT300EE/GT300S/GT350/GT350S

3-2. BLOCK DIAGRAM — MAIN SECTION —

R-CH

TU1

(TUNER UNIT)

1

ANT

VCC8.3V

VDD5V

E2PVDD

S-METER

TU_MUTE

E2PSCL

E2PSDA

QUALITY

RDS_OUT

MUTE_CON

AEP,UK MODEL

: CD PLAY

: TUNER (FM/AM)

: BUS AUDIO

: AUX

SCL
SDA

L

4

R

3

R-CH

AU+8V

10
11

TU+5V
BU+3.3V

15

SCL

13

SDA

14

6
7

16
17

5

9

X50

8.66MHz

8

16

MPX

9

XT1

XT0

10

2

IN

CD

SECTION

(Page 21)

J1

(ANTENNA)

J901
AUX

CD-L

A

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

• Signal Path

BU+3.3V

B+ SWITCH

Q50

VDD

RDS RECEIVER

IC50

OUTU COM+3.3V

RESET

IC602

INTN

SCL
SDA

1

AUDIO IN SELECT

IC301

8

11

12

QUALITY

SWITCH

Q1

15

11
12

S103

RESET

KEY

SECTION

(Page 23)

CD

SECTION

(Page 21)

6

SCL

SDA

Q301

Q300

C

B

9

10

DOOR SW

SYS RST

BUS ON
UNI CLK

UNI SO

UNI SI

B/U CHECK

A ATT

LINK ON/OFF

R-CH

R-CH

R-CH

SYSTEM CONTROL

17

FUNC-SEL

39

VSM

12

TUATT

25

EEP_CKO

24

EEP_SDA

38

QUALITY

13

NSMASK

30

RDSON

56

DAVN

53

TU_ATTIN

77

RESET

ELECTRONIC VOLUME

IC401

11

DIFEL

13

DIFFR

9

SE1L

10

SE1R

7

SE2L

8

SE2R

IC501 (2/3)

OPEN-MUTE

OUTLR2
OUTRR2

OUTLF

OUTRF

OUTLR1

OUTRR1

MUTE

SCL
SDA

SAIN

SAOUT

SA_IN

SA_CKO

I2C_CKO

I2C_SIO

VOL ATT

BEEP

AMPSTB

DIAG

ACC_IN

TELATT

ILLUIN

TESTIN

ATT

BUIN

UNISI

UNISO

UNISCK

BUSON

SYSRST

D400

L

BUS

AUDIO IN

CN300

TH400

1
9

2

10

4

12

3

11

5
6

16

7

13

14

15

6

5

4

R

L

R

L

R

FL+
FL-

RL+
RL-

FR+
FR­RR+
RR-

AMP-REM
ANT-REM

BATT

ACC

TEL-MUTE

ILL

TEST

8

7

REAR

FRONT

3

2

1

PJ451

AUDIO

OUT

CNJ400

BUS

CONTROL IN

R-CH

16
28

R-CH

20
17

R-CH

19

R-CH

18

21

SCL

22

SDA

23
25
26

44
45

SCL

33

SDA

34

6

5

26

8

72

74

75

73

86

100

54
58
59
60
87
62

MUTE

Q430

MUTE CONTROL

Q491,492

D493

D494

MUTE

Q440

D491

BUS INTERFACE CONTROL

B/U-C

10

OUT DATA

8

CLK-IN

11

IN BUS

12

RST

13

IN DATA

9

D511

MUTE
Q470

BATT

IC601

BATT

I/O DATA

CLK

ON BUS

RST

FL

SDA
SCL

TU+5V

BU+3.3V

3

6

4

1

2

POWER AMP

MULTI REGULATOR

12

IN_RR

11

IN_RF

2

SDA

4

SCL

16

ACGND

22

STB

25

DIAG

ACC DETECT

TEL-ATT DETECT

Q701

ILL DETECT

+5V REG

+3.3V REG

BATTERY CHECK

IC300

Q702

Q703

Q3

IC502

Q605

BUS ON

CONTROL

Q601

LINK ON/OFF

CONTROL

Q600

RR+
RR–

RF+

RF–

SW1
SW2

VP
VP1
VP2

REG1
REG2
REG3
REG4
REG5

5
3

9
7

29
27

35
20

6

30
37
31
33
34

AU+8V

U-COM+5V

D602

BATT

AU+8V
U-COM+5V
SERVO+3.3V

MECHA+6V
DISP+B

BATT

R-CH

R-CH

R-CH

FU601

BATT

CDX-GT30W/GT300/GT300EE/GT300S/GT350/GT350S

2222

CDX-GT30W/GT300/GT300EE/GT300S/GT350/GT350S

t

3-3. BLOCK DIAGRAM — KEY SECTION — 3-4. CIRCUIT BOARDS LOCATION

RE901

PUSH SELECT

(VOLUME)

S802

Z

LSW901,903-905

S902,911-920

J370

(REMOTE IN)

E,CH,MX MODEL

FREQUENCY

ROTARY

ENCODER

KEY MATRIX

LSW907-910

S501

SELECT

10K

78

DI
CL

CLK

77

CE

CE

76

DISPLAY

CONTROL

IC901

S1

|

S54

COM1

|

COM4

DIMMER

DIMMER

DOOR INDICATOR

B+ SWITCH

REMOTE CONTROL

SIGNAL RECIVER

2

IN

7

|

60

65

|

68

1

Q589,590

IC971

DISP+B

IR

LCD901

LIQUID
CRYSTAL
DISPLAY

PANEL

LED

DRIVER

Q901

LED930,931

LCD

BACK LIGHT

()

LSW901,903-905,907-910,

LED902,911-924

(KEY ILLUMINATE)

LED801,802
(CISC IN/Z)

SENSOR board

KEY board

JACK board

SERVO board

tuner uni
(TU1)

MAIN board

SUB board

SYSTEM CONTROL

IC501 (3/3)

RE-0

48

RE-1

47

+

KEYIN0

41

KEYIN1

40

D510

KEY

ACKNOWLEDGE

SWITCH

Q501

BU+3.3V

9K

52

76

71
43

3

KEYACK

XKEYON

RC_IN1
RC_IN0

AREASEL0

LED_SO/FLS_SO

LCD_SCK

LCD_CE/FLS_SI

DOOR IND

SIRCS

28
29
27

46

64

MAIN

SECTION

(Page 22)

C

DOOR SW

S102

(FRONT PANEL DETECT)

CN801 CN901

18 18

7

NOSE_SW

XIN

XCOUT

OSCIN

OSCOUT

79

80

82

83

X501

32.768KHz

X500

18.432MHz

CDX-GT30W/GT300/GT300EE/GT300S/GT350/GT350S

23 23