Sony specifications HCD-PX333 Section Diagrams, Block Diagrams, MD Servo Section

HCD-PX333

SECTION 6

DIAGRAMS

6-1. BLOCK DIAGRAMS

MD SERVO SECTION

HR901

OVER WRITE HEAD

OVER WRITE

HEAD DRIVE

IC181, Q181, 182

SCTX

DIGITAL SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER,	15
ATRAC ENCODER/DECODER	TX
IC151 (1/2)	EFMO
100
60	FILI

	DATAI	22
SAMPLING	ADDT	25
RATE

DADTI

B (Page 52)

48 47

			59	PCO	PLL
			62	CLTV
			61	FILO
	RF AMP,
FOCUS/TRACKING ERROR AMP
	IC101
		FILTER		ASYO		EFM/ACIRC ENCODER/DECODER	SHOCKPROOF CONTROLLER	ATRAC ENCODER/DECODER

CONVERTER XBCKI	24	BCK
LRCKI
	23	LRCK

DIGITAL	DIN0	19
AUDIO	DIN1	20

LRCK, BCK

DIN0

C (Page 52)

A (Page 52)

I		I	MORFO	MORFI
	1
J		J
	2		RF AMP
		ABCD

F

B

RFO

46

B.P.F.

3T

				53		MEMORY
					ASYI
	AGCI		RF	54		COMPA-
		RF AGC			RFI
40				57		RATOR
			38
		& EQ
		EQ

AUX

33

WBL

TEMP	PEAK
PEAK &	37
BOTTOM	BOTM
	36

INTERFACE	DOUT
	21
	DADT
	26

28 27 29

XBCK LRCK FS256

CLOCK	OSCI	16
	OSCO
GENERATOR		17

X171

90.3168MHz

DOUT

D (Page 52)

C	B
I	J
D	A

	A		4	A
				B
			5		I-V
	E			C
			6		AMP
	DETECTOR			D
			7
	C
	D
	E		8	E	I-V
	F			F
			9		AMP
LASER DIODE
	ILCC	AUTOMATIC		APC	LD/PD
		POWER	11
		CONTROL			AMP
PD	LD	Q121, 122
	PD	LASER ON	10	PD
		SWITCH
		Q101

WBL

AT

AMP B.P.F.

ABCD

AMP

WBL 3T EQ

V-I

CONVERTER

ADFM				ADFG		SUBCODE
	30	ADIN	ADFG		ADIP	PROCESSOR
29			32	78	DEMODULATOR/
					DECODER

	ABCD
	35
FOCUS	FE		F0CNT	SPINDLE	CPU
		79			INTERFACE
ERROR AMP	34
				SERVO

	TE		SPFD	SPRD	XRST DQSY	SQSY	XINT	SENS SRDT	SWDT SCLK XLAT
ERROR AMP		28
	SE
TRACKING		26

94	93	10	12	11	14	9	8	5	6	7
COMMAND

SERIAL/

PARALLEL

CONVERTER,

DECODER

SWDT SCLK XLAT

INTERNAL BUS

MONITOR

CONTROL

MNT0 MNT1 MNT2 MNT3

1 2 3 4

SHOCK XBUSY

D0 – D3	49, 48, 50, 51	2, 3, 24, 25	DQ1 – DQ4
A00 – A10	–3631,–40, 35	19,–1512,21, 8	D-RAM
			A10–A0
			IC152
	34	9 –
XOE	43	22	OE
XWE
	47	4	WE
XRAS
	46	5	RAS
XCAS
	44	23	CAS

•SIGNAL PATH

: MD PLAY

: MD REC

OPTICAL PICK-UP BLOCK
(KMS-262)
			FOCUS/TRACKING COIL DRIVE,
			SPINDLE/SLED MOTOR DRIVE
				IC141
					PSB 16
	M101	M	6	OUT4F	IN4R	3	SPFD
	(SPINDLE)		8	OUT4R	IN4F	4 SPRD
	M102	M	27 OUT2F		IN2F	29
	(SLED)		25 OUT2R		IN2R	30
2-AXIS
DEVICE	FCS+

12 20

83 APCREF

92SFDR

91SRDR

FFDR GENERATOR

16 17 18	25	27	32 48 40	38 42 50
	DQSY	SQSY	XINT SENS SRDT	SWDT SCLK XLAT
COMPARATOR
IC102
133 OP-LEVEL
29	LDON

47	DIG-RST
35	WRPWR	LDOUT	LDIN
14	MOD
		12	13

13	67	65 66 75 74 63 64
RECP	AUX1 ABCD FE TE SE PEAK BOTM
AUTOMATIC				5	6
				IN1	IN2
POWER			LOADING
CONTROL		ANALOG MUX			VREF 4
			MOTOR DRIVE
			IC1004	OUT1 OUT2
	A/D CONVERTER			2	10
DIGITAL
SERVO					M
SIGNAL		FROM CPU
PROCESS
		INTERFACE

58 56

MNT1 (SHOCK) MNT2 (XBUSY)

REFERENCE

VOLTAGE SWITCH

Q1001, 1002

MD MECHANISM CONTROLLER	LIMIT-IN	30
IC1001 (1/2)
	REC-SW	43
M+7V	OUT-SW	51
	PLAY-SW	49

11LD-LOW

REFLECT 67

	S101
S101	(LIMIT IN)
	ON: When the optical pick-up is
	inner position
	S105
S105	(REC POSITION)
	ON: When the over write head is
	recording position
	S103
S103	(PACK OUT)
	ON: When the eject slider is
	open position
	S104
S104	(PLAY POSITION)
	ON: When the eject slider is
	playback position
–1	S102-1
	(REFLECT RATE DETECT)
	ON: When the high reflection

			21 OUT1F	IN1F	19
(TRACKING)	(FOCUS)		23 OUT1R	IN1R	18
		FCS–
		TRK+	12 OUT3F	IN3F	14
		TRK–
			10 OUT3R	IN3R	15
HF MODULE		MOD

88	FRDR	PWM
89

86TFDR

85TRDR

		M103
		(LOADING)
XLRF	80	XLAT

AUTO	CKRF	81	SCLK
SEQUENCER	DTRF		SWDT
		82

DIGITAL SERVO
SIGNAL PROCESSOR	HF MODULE
	SWITCH
IC151 (2/2)
	Q131 – 134

EEPROM			PROTECT 68
IC195
SDA	5	61	SDA
SCL	6	66	SCL
WP	7	60	EEP-WP

rate disc detect

–2

S102

S102-2

(PROTECT DETECT)

ON: When the REC-proof claw is close (un-protect)

51 51