Sony service manual MDS-NT1 Section Diagrams, Block Diagram Servo Section

MDS-NT1

SECTION 6

DIAGRAMS

6-1. BLOCK DIAGRAM – SERVO Section –

	DIGITAL SIGNAL PROCESSOR,
	EFM/ACIRC ENCODER/DECODER,
	SHOCK PROOF MEMORY CONTROLLER,	IC201 (1/2)
	ATRAC ENCODER/DECODER
OVER WRITE	IC201 (1/2)	EFMO
HEAD DRIVE		115
IC181, Q181, 182
HR901		FILI
OVER WRITE HEAD	SCTX	73
	FILTER	PCO
		75
		72	PLL
		CLTV
		FILO
		74

OPTICAL PICK-UP BLOCK

48

47

RF AMP,

ASYO

MORFO

MORFI

FOCUS/TRACKING ERROR AMP

67

(KMS-262E)

IC101

68

ASYI

I

I

COMPA-

1

RFO

AGCI

RF AGC

RF

RFI

RATOR

J

J

RF AMP

46

40

& EQ

38

70

2

WBL

EQ

B.P.F.

AUX

33

F

3T

TEMP

PEAK &

PEAK

37

BOTM

B

BOTTOM

36

WBL

C

B

ADIP

I

J

AT

ADFM

30 ADIN

ADFG

ADFG

D

A

B.P.F.

29

32

91

DEMODULATOR/

A

A

AMP

DECODER

4

B

ABCD

ABCD 35

5

I-V

C

AMP

	17
	TX
				ADDT	32
			SAMPLING	DATAI	27	DADTI
			RATE	XBCKI		XBCKI
			CONVERTER		29
				LRCKI		LRCKI
					28
EFM/ACIRC ENCODER/DECODER	SHOCKPROOF MEMORYCONTROLLER	ATRAC/ATRACK3 ENCODER/DECODER
			INTERFACE	DOUT
				DIN0	24
			DIGITAL	DIN1		DIN1
			AUDIO		25
					26
				DADT	33	DADT
				XBCK		BCK
					35
				LRCK		LRCK
					34
				FS256		FS256
					36
						OSCI		X801
			CLOCK				19	90.3168MHz
						OSCO
			GENERATOR				20
									D-RAM
			INTERNAL BUS			D3			IC152
SUBCODE
						–
PROCESSOR						D0	– 45	24, 25	– DQ4
							42	2, 3,	DQ1

DADTI, XBCKI,

LRCKI, DIN1

A (Page 37)

DADT, BCK,
LRCK, FS256	(Page 37)
B

E

		6	D	AMP	FOCUS		FE 34
DETECTOR		7
C					ERROR AMP
								F0CN	SPINDLE
D							94
									SERVO
E			E				TE
		8
				I-V	TRACKING		26			SPRD
F			F				SE		SPFD
				AMP	ERROR AMP
		9					28
						EQ 3T WBL
					COMMAND				110	109
ILCC	AUTOMATIC		APC LD/PD
	POWER CONTROL	11
				AMP	SERIAL/PARALLEL
	Q202, 203					V-I	F0CNT

CPU	MONITOR
INTERFACE	CONTROL

DQSY	SQSY	XINT	XRST SENS SRDT SWDT	SCLK		XLAT	MNT0 (FOK)	MNT1 (SHCK)	MNT2 (XBUSY)	MNT3 (SLOC)
14	13	16	12 11 10	6	7	8	1	2	3	4

SHOCK XBUSY

A00 – A10	59, 60	– 19, 21	A10
	48 – 56,	– 12, 15	A0 –
		8
XOE	38	22	OE
XWE
	37	4	WE

PD	LD	CONVERTER,	CONVERTER	20
		DECODER

LASER DIODE

PD	LASER ON	10	PD	APCREF	SWDT SCLK XLAT
	Q201
	SWITCH
				12	16 17 18

COMPARATOR

IC701

FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
	IC401		16
			PSB
	6	OUT4F	IN4R	SPFD
M101				3
				4 SPRD
(SPINDLE) M	8	OUT4R	IN4F		100	15	80 78 79 86 85 76 77
					APCR	RPWR	AUX1 ABCD FE TE SE PEAK BOTM

					XRAS	47	5	RAS
					XCAS
						46	23	CAS
					SWDT
					SCLK
	16	18	23	49 30 29 31 51	55 54
87	DQSY	SQSY	XINT	SENSE SRDT SWDT SCLK XLATCH	SHOCK XBUSY
	IOP
43	LDON
48	D. RESET				SYSTEM CONTROLLER
46	WRPWR
					IC301 (1/2)
42	MOD		LOAD-OUT
		LOAD-IN
		65	64
		3	6		+5V		LIMIT-IN	45
		IN1	IN2

M102	M
(SLED)

2-AXIS

DEVICE FCS+

(TRACKING)	(FOCUS)
	FCS–
	TRK+
	TRK–

27	OUT2F	IN2F	29	108	SFDR
25	OUT2R	IN2R	30	107	SRDR
12	OUT3F	IN3F	14	104	FFDR
10	OUT3R	IN3R	15	105	FRDR
21	OUT1F	IN1F	19	103	TFDR
23	OUT1R	IN1R	18	102	TRDR

PWM GENERATOR

ANALOG MUX

A/D CONVERTER

DIGITAL SERVO

SIGNAL

PROCESSFROM CPU

INTERFACE

	XLRF	XLAT
AUTO	CLRF	97
		SCLK
SEQUENCER	DTRF	98
		SWDT
		99

DIGITAL SERVO

SIGNAL PROCESSOR

IC201 (2/2)

HF MODULE

SWITCH

Q701 – 704

LOADING	VZ 5	REFERENCE					REC-SW	47
MOTOR DRIVE		VOLTAGE SWITCH
IC440		Q401, 440
OUT1	OUT2				63	LOAD-LO	OUT-SW	53
7	2
	M						PLAY-SW	50
M103
(LOADING)		EEPROM	SDA	5	57	SDA	REFLECT	58
			SCL	6	52	SCL
		IC195
			WP	7	56	EEP-WP	PROTECT	59

HF MODULE

MOD

–1

–2

S102

SWDT, SCLK C (Page 37)

•SIGNAL PATH

: PLAY

: REC

S101

(LIMIT IN)

S105

(REC)

S103

(OUT)

S104

(PLAY)

S102-1

(REFELECT RATE DETECT)

S102-2

(PROTECT DETECT)

36 36