Sharp MD-MT877, MD-MT877C manual 30

MD-MT877/MD-MT877C

A

B

C

D

E

F

G

H

MAIN PWB-A

1

C109

+B

1

C111

C107 0.1

C106 1

R112

220K

C110 0.22

C108 1

C114

R111

C112

TP202

5P(CH)

12K

0.1

TP139

PLAYBACK SIGNAL

EFMO

48

47

46

45

44

43

42

41

40

39

38

37

C131

CK203

RECORD SIGNAL

1234 1+2

DIFF3+4

PITG NIN

GND1

CK113

BIAS

VCC1

ADIP AGC

34

ADAGC

CK202

1M

C211

5P(CH)

3 RF3 SW

CK111

1

RF1

PIN

DCNF

2-1

36

CK112

R

ADAGI 35

C132

CK201

R207

R222

2 RF2and

TP204

0.22

680

CK114

4 RF4

BPF

WBO

33 ADIPNF

1

C212

LDCNT2

LDCNT1

XL201

EFMO

TP144

6

REFO

31

CK108

L204

8P(CH)

C103 C102 1

5

REFI

ADIPO

32

N.C.

11

CK207

33.8688MHz

TP212

1

IC101

GND2

CK102

14

TP208

DFCK BCLK

LRCK DGND

PLLBVC DOUT

DIN X1O

X1I DGND

VDD1

VPO

VXI EMPH

LDCNT2

LDCNT1

LEDON1 DILOCK

TEST1

CK225

48

TP205

TP203

78

TEST0

R132

TP144

7

AOUT

BIAS

30

C113

10

75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51

R131

8

ASW

VCC2

29

1

TP209

76

50

1M

150K

OPICPW

9 AIN

28 N.C.

TP210

77

49

CK224

SW

10

BIN

MODE

27

79 OPTCNT

73 ADDATA

RAA11 47

CK222

1

VCC

GND 24

R134

R133

11

BSW

26

DISC

80 DAPON

48

ACRCER

RAD0 46

2 I/O1

I/O4 23

1M

150K

BOUT EOUT

ESW

EIN

FIN

FSW

FOUT

EOUT

BOUT

AOUT

TCGO

TCGI

RFADD

DTEMP

SGAIN

4

CIN

CK206

81 ADPON

74 DADATA

49 PLCK

RAD1 45

3 I/O2

I/O3 22

12

25

TEMP

83

SENSE

76

TOTMON

51

X700KO

RARASX

43

5

RAS

OE

20

FOK

CK204

82

FOK

75

FEMON

50

EFMO

RAWEX

44

4

WE

CAS

21

SENSE CK205

13

14

15

16

17

18

19

20

21

22

23

24

3

84 COUT

77

TEMON

52 TCRS

RAA9 42

6 N.C.

A9 19

C203

85 MCCK

78

HDON

IC201

RAD3 41

39K

DINT

7 A10

A8 18

86 DINTX

RAD2 40

R135 56K

R137

56K

TP130

TP131

TP132

TP133

R139

TP211

XRT 1K

88

DGND

DGND

38

9

A1

A6

16

0.22

0.1

LR378161

C133

R204

87 VDD2

RACASX 39

8 A0

A7 17

SYD0

89 RSTX

ENDEC/SERVO

RAOEX

37

10 A2

A5 15

390K

390K

C204

91

SYSD1

/ATRAC

RAA7

35

TP200

12

VCC

GND

13

SYD1

R136

R138

R140

90

SYSD0

RAA8

36

11

A3

A4

14

R103 22K

0.47

SYD2

92 SYSD2

RAA6 34

C202

390K

SYD3

1 EFMMON

23

SLDRR

VCCDRAM

R101

R104 22K

C123

330P

BIN EIN

FIN VBAT

VDD1

DGND

TEST2 X176KO

100

EFMI

AGND AVCC2

VREF WBI

TCG AIN

FODRF FODRR

TRDRF TRDRR SLDRF

RAA5

26

D-RAM

+B

+2.5V

SYD5

93

SYSD3

98

SYWRX

25

SPDRR

33

47/6.3

94 SYSD4

RAA4 32

SYD4

2

AVCC

24

SPDRF

IC202

IC101 IR3R58M

TP100

SYD6

95 SYSD5

99

SYRDX

26

RAA3

VDD2 31

C124

SYD7

97

SYSD7

100

SYRS

27

RAA2

RAA0

29

IX2824A

RF SIGNAL PROCESSOR

R102

96

SYSD6

RAA10

30

330P

SYWR

98

RAA1 28

16MBIT

22K

SYRD

SYRS

99

27

OPICGA

C122

220P

9

+1.5V

12

LDVAR

22K

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

L103 TP105 TP106 TP107

LDON

C201 10/6.3

F+

220P

TP201

C209

T–

C165

R161

C121

0.1

SPDRF

SPDRR

TP101

TP102

TP103

TP108

TP109

TP110 TP111

TP113

TP114 TP115 TP116 TP117

TP118 TP119 TP120 TP121

T+

0.033

1.2K

+B

TP201A

0.1

C205 0.1

TP206

TP207

10∝H

2

5

15

100K

VCC2R5V

F–

1

6

L202

C207

R206

L100

10∝H

1

TP122

2

L171

27K

X176KO FODRF

FODRR TRDRF TRDRR

C100 10/6.3

3

4

22

C151

Q103

CN101

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

R205

0.01

FDG312 P

LDVAR

LDON

DGND

DGND VCC B A

COM

CVCC

MP/R RF2

AGND VCC

RF4 RF3 E F

RF1 T+ F+ T– F–

10∝H

TP487

+B

+2.7V

TP105A

C172

C171

R151

33/6.3

33/6.3

100K

OPIC

OPTICAL PICKUP

DRIVERHEAD

+B

EFMO

IC351 74ACT02FT

TP352

HDON

+B

RFPCNT

TP417 TP416

INPGCK INPGIN

MCPGIN

RCAULT

SYD7 SYD6 SYD5 SYD4

SYD3

SYD2 SYD1

SYD0

SYWR SYRD SYRS

TP411A

IC4

IC351

R920

100K

58X24

8

GND 7

2

3 0V

R411

EEPR

9

6

4.22V

Q901

100K

R412

10

5

R422

11

4

1

RN1104

100K

TP409

15K

C357

12

3

0V

OPICGA

5

13

2

TP408

6

0.1

BEEP

14 VCC

1

7

SGAIN

D651

8

+B

F10J2E

R414

R415 1K

TP411

C354

0.1

25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

R351

DISC

1K

TP413

5

N.C.

G

4

28

RACLK

OPICGA

JPNP

TEST0 TEST1

RCPCNT

INPGCK INPGI

MCPGI

VSS RCLAT

VCC SYD7

SYD6 SYD5 SYD4

SYD3

SYD2 SYD1

SYD0

SYWR

98

R416

TP351

1K

C353

3.9

TP415

26

100

10/6.3

AUSCLK

27

99

IC354

1

S

2

IC3531 2 3 4

C652

0.1

10K

0.01

FP32 FP31

CIN

N.C.

35

_PLAY

91

EMPH0

6 O2

I2 3

TP412

AUDATA

29 RADAT

23 RFPCNT

1

EEPD

97

D351

7 O1

I1 2

CHGCNT

SYRS

30 CHGCNT

EPCS

96

5 4 3

SBE803

8 7 6 5

8 G VCC 1

LDCNT1

DSPDAT

31 DSPDAT

24 BUZOUT

2

SYRD

LEDCNT2

95

(GREEN)

G1

G2

4

3

D2 S2 S2 G2

IC651

LDCNT2

DSPSTB

32 DSPSTB

25

SGAIN

98

EEPK

CKSTP

94

TP40

C351

DSPSCK

XRT

D1

D2

5

N.C. 2

D1 S1

S1 G1

SPIN

33 DSPSCK

26

DISCP

99

EPRT

XRST

93

47P

1

LB1938T

R909

PBMUTE

34 PBOPON

27

MCMON

100

PCNT1

REC

92

HREC

(CH)

MOTOR DRIVE

C902

P11

IC401

SPIN

36 CIN

EMPH0

90

PCNT2

DINT

37 SPIN

IX0419AW

PCNT2

89

DCON

TP40

38 DINT

DCON

88

DISCPR

40

ARQD

SYSTEM

PBLAT

86

PCNT3

PBAULT

15

C361

1

0.1

N.C.

39

DISCPR

MICROCOMPUTER

PCNT3

87

BATON

41 P17

LDON

85

R361

C901

+B

C130

0.039

N.C.37 36N.C.

35N.C.

34N.C.

42 AVSS

49

RKEY

74

FOK

BATON

84

DCNT1

C912

48 47 46 45 44 43 42 41 40 39 38

33

SLCNT3

LDVAR

N.C.

44

50

STDCK

75 DCEXT

LEDCNT3

82

STOP

IC354 CPH5608

HEADDRIVER

IC353

22∝H

0.1

64

IN1R IN2F

IN2R

STALL

STHB

SPVM1

SPUOUT

SPPG1

N.C.

SPVOUT

SPVM2

SPWOUT

SPPG2

PWVM

PWOUT

PWPG

17

HKEY2

HKEY1 R424RKEY

22KSTDCK R425 22K R423 22K

PLVDCI PLVBAT

TP406

FP59

3.68MHz

SLCNT3

SLCNT2 10KSLCNT1

RPLAY

SENSE FOK DCEXT R402

LDON 1SS372

49

EXTCLKVG VCC1

SLVM1

SLUOUT

SLPG1

SLVOUT

SLVM2

SLWOUT

SLPG2

SLCOM

BEMFW

BEMFV

BEMFU

S3

32

SLCNT2

TEMP

45

RKCNG

51

PLVDCI

76

RMDAT

STOP

81

(BLUE)

HEAD DRIVER

0.1

51

30

R906

R905

48 HKEY1

AVCC

MD0

MD1

OSC1

RESET DCIN

uSTBY

VCC XTAL

VSS EXTAL

FWE MD2 EJSW

SLCNT3

SLCNT2 SLCNT1

RPLAY

SENSE

78

1

22∝H

54

H2PG2

VCC2

50 C1M

31 S1

BRK+

27

SPDRR

SLCNT1

50

Vref

76N.C.

FTD2005

C911

50

C2M

31

47 HKEY2

78 SCK0

ELON

79

ELON

52

49 C2P

32 S2

ASGND 29

270K

100K 13

49

77

C602

L602

53

N.C.

BRK– 28

C601

55

H2ROUT 51 C1P

30 SGND

FG 26

C909

0.047

R907

51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75

TP401

1

56

H2VM

CSL2

25

180K

N.C.

TP402

IC601

C910

0.047

L603

H∝

57

H2FOUT

CSL1 24

C908

0.33

R908

C603

58

H2PG

62

H1FOUT

19

SPVIN

CST 23

R406

TP400

1

∝

L601 22

59

H1PG1

18

SPUIN

RIB

22

100K

R405

100K

4.7 H

63

H1PG

R903

22K

R407FP67

C401

C604

60

H1ROUT

64

IN1F

17

PWIN1 SPCOM 21 C907

0.0022

SW401

1

61

H1VM

SPWIN 20

C906

0.0022

470

EJECT

100K

0.1

L604

62

19

C905

0.0022

XL401

FP66

D432

63

18

IC601

1 2 3 4

5 6 7 8

9 10 11 12 13

14 15 16

R904

10K

BD6640KV

L608

TP661

TP660

TP659 TP658 TP657 TP656

TP655

TP654

TP653 TP652

TP651

MOTOR DRIVE

X176K FODRF

FODRR

TRDRF TRDRR

DCNT1

10∝H

DISC PROTECT

R404 100K

DISCPR

DCIN

AURESET

R408

SPDRF

100K

C608

1

R403

2

3

1K

1

TP901

SW901

CN601 11 10 9 8 7 6 5 4 3 2 1

+B

+B

TP610

C605

C600

11

1

0.1

22/6.3

+B

HEAD

M902

IC431

SLED

100K

100K

COM

W

W

MOTOR

D431

S-80820LNP

U

M

U

V

M

1SS361

RESET

V

–

R461

R463

R464

SPINDLE

M903

1 OUT VSS 4

22K

M901

R462

MOTOR

M LIFT

C431

R431

2 VDD

3 N.C.

220K

0.47

330K

+

MOTOR

C454

0.0022

MECHANISM FLEXIBLE

•NOTES ON SCHEMATIC DIAGRAM can be found on page 28.

•The numbers 1 to 15 are waveform numbers shown in page 37.

1 2 3 4 5 6

Figure 30 SCHEMATIC DIAGRAM (1/2)

– 30 –