Sony MDS-JE770 specifications Block Diagrams BD Section, IC171, IC190

Page 38

MDS-JE770

6-2. BLOCK DIAGRAMS – BD SECTION –

DIGITAL SIGNAL PROCESSOR,

EFM/ACIRC ENCODER/DECODER,

SHOCK PROOF MEMORY CONTROLLER,

ATRAC ENCODER/DECODER

15

IC151 (1/2)

IC151 (1/2)

TX

OVER WRITE

EFMO

ADDT

HR901

HEAD DRIVE

100

25

NC

IC181, Q181, 182

FILI

SAMPLING

22

DATAI

OVER WRITE HEAD

SCTX

60

RATE

XBCKI

CONVERTER

MORFO

MORFI

IC101

FILTER

PCO

EFM/ACIRC ENCODER/DECODER

PROOFSHOCK

CONTROLLERMEMORY

ATRAC ENCODER/DECODER

24 NC

59

LRCKI

CLTV

PLL

23

NC

62

FILO

61

DIN0

48

47

DIGITAL

19

OPTICAL PICK-UP

RF AMP,

ASYO

DIN1

AUDIO

20

(KMS-260B/260E)

FOCUS/TRACKING ERROR AMP

53

INTERFACE

DOUT

21

ASYI

I

I

RFO

AGCI

RF AGC

RF

54

COMPA-

DADT

1

RFI

RATOR

26

J

J

RF AMP

46

40

& EQ

38

57

XBCK

28

2

LRCK

27

FS256

NC

EQ

29

WBL

B.P.F.

AUX

		ADDT			MAIN
		ADDT		A	SECTION
				A	SECTION
		J631			(Page 39)
	COAXIAL IN		AEP, UK
			AEP, UK
	OPTICAL	DIGITAL
WAVE	RECEIVER	DIGITAL
	RECEIVER	IN 1
	IC611	IN 1
SHAPER	IC611	(OPTICAL)
SHAPER		(OPTICAL)
IC600	OPTICAL	DIGITAL
	RECEIVER	DIGITAL
	RECEIVER	IN 2
	IC621	IN 2			SP
	IC621	(OPTICAL)			SP
		(OPTICAL)
	OPTICAL	DIGITAL
	TRANSCEIVER	OUT
	IC641	(OPTICAL)
	IC641

MAIN

DADT, BCK, LRCKSECTION

B (Page 39)

				33
	3T		PEAK		CLOCK
F		PEAK &		37	GENERATOR
	TEMP		BOTM
	B	BOTTOM		36

WBL

SUBCODE

C

B

ADFG

INTERNAL BUS

ADIP

PROCESSOR

I

J

AT

ADFM

ADIN

ADFG

D

A

B.P.F.

29

30

32

78

DEMODULATOR/

A

A

AMP

DECODER

4

B

ABCD

ABCD 35

5

I-V

CPU

MONITOR

E

6

C

AMP

AMP

INTERFACE

CONTROL

D

FOCUS

FE

F0CNT

SPINDLE

DETECTOR

7

34

79

ERROR AMP

SERVO

C

D

SPFD

SPRD

DQSY

SQSY

XINT

SENS

SRDT

SWDT

SCLK XLAT

MNT0

MNT1

MNT2

MNT3

E

8

E

I-V

TRACKING

TE

26

F

F

SE

9

AMP

ERROR AMP

28

94

93

12

11

14

9

8

5

6

7

1

2

3

4

COMMAND

EQ 3T

WBL

SHOCK

XBUSY

ILCC

AUTOMATIC

APC

LD/PD

POWER CONTROL

11

AMP

SERIAL/PARALLEL

Q121, 122

V-I

F0CNT

20

SWDT

PD

LD

CONVERTER,

CONVERTER

SCLK

DECODER

LASER DIODE

LASER ON

PD

10

PD

APCREF

SWDT

SWITCH

SCLK XLAT

Q101

12

16 17 18

18

20

25

58

32

31 33 50

59 48

DQSY

SQSY

XINT

SENS

SRDT

SWDT

SCLK

XLATCH

(SHOCK)

(XBUSY)

57

LDON

MNT1

MNT2

OSCI
16
OSCO	D-RAM
17	D-RAM

	D0 – D3			IC153
		49, 48, 50, 51	1, 2, 24, 25	DQ1 – DQ4
	A00 – A09	– 40, 45	14 – 18	A9
		34 – 31, 36	5, 9 – 12,	A0 –
	XOE	43	22	OE
	XWE
		47	3	WE
	XRAS
		46	4	RAS
	XCAS
		44	23	CAS

BUFFER

IC171

C MAIN SECTION (Page 39)

	SWDT, SCLK	MAIN
	SWDT, SCLK	D SECTION
		D SECTION
		(Page 39)

52

DIG-RST

SYSTEM CONTROLLER

FOCUS/TRACKING COIL DRIVE,

54

WR-PWR

IC1 (1/2)

SPINDLE/SLED MOTOR DRIVE

56

MOD

IC141

LDOUT

16

LDIN

PSB

67

66

SPFD

6

OUT4F

IN4R

M101

M

3

83

10

13

67 65 66 75 74 63 64

4 SPRD

(SPINDLE)

8

OUT4R

IN4F

APCREF

XRST

RECP

AUX1 ABCD FE TE SE PEAK

BOTM

AUTOMATIC

3

6

IN1

IN2

POWER

VCC

1

+5V

27

OUT2F

IN2F

29

SFDR

CONTROL

LOADING

UNREG

M102

M

92

ANALOG MUX

VCC

8

(SLED)

OUT2R

IN2R

SRDR

MOTOR DRIVE

+12V

25

30

91

IC440

OUT1

OUT2

VZ

5

REFERENCE

GENERATOR

A/D CONVERTER

VOLTAGE SWITCH

DIGITAL SERVO

7

2

Q440,445

2-AXIS

SIGNAL

DEVICE

FCS+

FFDR

FROM CPU

21

OUT1F

IN1F

19

PROCESS

88

INTERFACE

M

(TRACKING)

23

OUT1R

IN1R

18

FRDR

PWM

(FOCUS)

89

XLRF

XLAT

M103

AUTO

CKRF

80

(LOADING)

SCLK

SEQUENCER

DTRF

81

FCS–

SWDT

TFDR

DIGITAL SERVO

82

SDA

5

TRK+

EEPROM

TRK–

12

OUT3F

IN3F

14

86

SIGNAL PROCESSOR

HF MODULE

10

OUT3R

IN3R

15

TRDR

IC195

SCL

6

85

IC151 (2/2)

SWITCH

IC102, Q131 – 134

HF MODULE

MOD

	D+3V	+3.3V	+5V
		REG.

IC190

			LIMIT-IN	55	S101
			LIMIT-IN	55	(LIMIT IN)
					(LIMIT IN)
			OUT-SW	49	S103
			OUT-SW	49	(OUT SW)
					(OUT SW)
			PLAY-SW	51	S104
			PLAY-SW	51	(PLAY SW)
					(PLAY SW)
			REC-SW	53	S105
			REC-SW	53	(REC POSITION)
					(REC POSITION)
	65	LD-LOW
			REFLECT	61	• SIGNAL PATH
	60	SDA	PROTECT	44	• SIGNAL PATH
			PROTECT	44
				S102		: PLAY (ANALOG OUT)
				S102		: PLAY (ANALOG OUT)
	45 SCL			(REFLECT/PROTECT DETECT)		: PLAY (DIGITAL OUT)
	45 SCL			HIGH REFELECT RATE/		: PLAY (DIGITAL OUT)
				HIGH REFELECT RATE/		: REC (ANALOG IN)
				WRITE PROTECT		: REC (ANALOG IN)

: REC (DIGITAL IN)

LOW REFELECT RATE/

UN-PROTECT

38 38

Image 38

Contents MDS-S50 Specifications873-890-11 MDM-7AMDS-JE770 Genera l Power requirementsSupplied accessories SELF-DIAGNOSIS FunctionItems of Error History Mode Items and Contents Diagrams Table of ContentsDisassembly Exploded ViewsMDS-JE770 Section Service Notes Flexible Circuit Board RepairingJIG for Checking BD Board Waveform IOPRecord Precedure KSN-260E Optical PICK-UP Block Type DiscriminationMain Board Component Side Checks Prior to Parts Replacement and AdjustmentsForced Reset Retry Cause Display Mode Bit BinaryHexadecimal Binary Bit When BinaryHigher Bits Lower Bits Hexa Details MDS-JE770 Section General Button DescriptionsMDS-JE770 Section Disassembly Disassembly FlowFront Panel Section Main Board Two screwsMechanism Deck Section MDM-7A Over Light Head HR901, BD BoardHolder Assy Loading Motor Assy M103Sled Motor Assy M102, Slider Optical PICK-UPSpindle Moter Assy M101 Setting the Test Mode MDS-JE770 Section Test ModePrecautions for USE of Test Mode Exiting the Test ModeSelecting the Test Mode Operating the Continuous Playback Mode MENU/NOError rate display Test Mode DisplaysMode display Functions of Other ButtonsAutomatic SELF-DIAGNOSIS Function When Memory NG is DisplayedMeanings of Other Displays InformationCheck before replacement MDS-JE770 Section Electrical AdjustmentsParts Replacement and Adjustment Adjustment flow Auto Gain Control Output LevelPrecautions for Adjustments Precautions for Checking Laser Diode EmissionPrecautions for USE of Optical PICK- UP KMS-260B/260E Temp AdjustUsing the Continuously Recorded Disc Checks Prior to RepairsTraverse Check Auto CheckOther Checks Traverse WaveformFocus Bias Check Play Check MO Error Rate CheckCD Error Rate Check Self-Recording/playback CheckLaser Power Adjustment Initial Setting of Adjustment ValueTemperature Compensation Offset Adjutment Traverse Adjustment Iop NV SaveFocus Bias Adjustment CD Auto Gain Control Output Level Adjustment Error Rate CheckAuto Gain Control Output Level Adjustment MO Auto Gain Control Output Level AdjustmentAdjusting Points and Connecting Points MDS-JE770 Section Diagrams Circuit Boards LocationBD Board For schematic diagramsFor printed wiring boards Main BoardIC190 Block Diagrams BD SectionIC171 IC1 2/2 Main SectionIC360 2/2 Optical Pick UP Block SemiconductorOVERSemiconductor Write HeadBoard Board Main Main Schematic Diagram Main /2 See page 51 for IC Block Diagrams Model is printed on diagram IC1KEY-SW Board Display BoardKB Board HP BoardSchematic Diagram Display Section LED DriveD910 RY910C951 C952 CN921 C924 LF900 C910Schematic Diagram Power Section MainIC Block Diagrams IC101 CXA2523AR BD BoardIC500 AK4524 Main Board Pin No Pin Name Description IC PIN Function DescriptionIC101 CXA2523AR RF Amplifier BD Board Pin No Pin Name Desription Asyi MvciAsyo AvddFrdr TfdrFfdr FS4Fldt IIC PowerADA.RESET FlckDINT1/H Clip ADA. LatchEPN ProtectBeep SW TimerSTB REC FlcsVFL1 ResetVDISP1 OSC0Section Exploded Views Chassis SectionFL750 1-517-987-11 Indicator TUBE, Fluorescent Not supplied Supplied with J790 FL750 With RV790Mechanism MDM-7A Motor ASSY, Sled HEAD, Over LightMotor ASSY, Spindle Motor ASSY, LoadingMDS-JE770 Section Electrical Parts List Jumper Resistor SwitchMetal Chip ShortMDS-JE770 Display HP KB KEY-SW KEY-SW Main MDS-JE770 Main 2SD2144S-TP-UVW Resistor MDS-JE770 Main PT VOL-SELMemo MDS-JE770 Revision History