Sony SMO-D501 Operating instructions

Magneto Optical Disk Drive

SMO-D501

Specification

and Operating instructions

version 1.0

Information in this document is subject to change without notice.

CONTENTS

1. Overview 1

2. Specifications 2

2.1 Drive Specifications 2

2.2 Format Specifications 5

2.2.1 Modulation Code 5

2.2.2 Sector Format 6

2.2.3 Data Field Format 1

3. System Configuration 14

3.1 Optical Head 1q

3.2 Laser Diode Drive Block 1e

3.3 Data Separation Block is

3.4 Servo Blocks 16

3.5 Bias Magnet Control Block 1

3.6 Loading Block 17

3.7 MPU Block 1

3.8 lOP Block 7

3.9 MDA Block 17

4. Setting Up

4.1 Locating the Disk Drive 18

4.2 System Cabling 19

5. Drive Interface Explanation 20

5.1 Physical Interface 20

5.1.1 Electrical Interface 20

5.1.2 Control Signal Drivers and Receivers 20

5.1.3 Data Line Drivers and Receivers 21

5.1.4 Connectors 22

5.2 Signal Lines 23

5.2.1

Pin Assignments 23

5.2.2 Control Out Lines 24

5.2.2.1 DRIVE SELECT 2(0).2(1),2(2) 24

5.2.2.2 WRITE GATE 24

5.2.2.3 READ GATE 25

5.2.2.4 COMMAND DATA 25

5.2.2.5 TRANSFER REQ 25

5.2.2.6 SPIRAL 25

5.2.3 Control In Lines 26

5.2.3.1 DRIVE SELECTED 26

5.2.3.2 READY 26

5.2.3.3 CONFIG/STATUS DATA 26

5.2.3.4 TRANSFER ACK 26

5.2.3.5 ATTENTION 26

5.2.3.6 INDEX 27

5.2.3.7 SECTOR 27

5.2.3.8 COMMAND COMPLETE 27

5.2.4

DATA TRANSFER LINES 28

5.2.4. 1NRZ WRITE DATA 28

5.2.4.2 NRZ READ DATA 28

5.2.4.3 READ/REFERENCE CLOCK 28

5.2.4.4 WRITE CLOCK 28

5.3. COMMANDS AND RESPONSES 28

5.3.1 COMMAND STRUCTURE 28

5.3.2 COMMANDS 29

5.3.3 RESPONSES AND STATUS 30

5.3.4 Seek (0000) 30

5.3.5 RECALIBRATE (0001) 31

5.3.6 REQUEST STATUS (0010) 31

5.3.7 REQUEST CONFIGURATION (0011) 37

5.3.9 CONTROL (0101) 40

5.3.12 INITIATE DIAGNOSTICS (1000) 41

5.3.14 SET HIGH ORDER VALUE (1010) 42

5.3.18 SET CONFIGURATION (1110) 43

5.3.19 Reserved for LINKING (1111) 44

6. Hardware Guide 45

6.1 Front Panel 45

6.1.1 BUSY Indicator 45

6.1.2 EJECT button 45

6.1.3 Emergency Eject Hole 45

6.2 Rear Panel 46

6.2.1

Drive Number Switch 47

6.2.3 ESDI Control Connector (J1

)

6.2.4 ESDI Data Connector (J2 )49

6.2.5 ESDI DC Power Connector (J3 )50

Owner's Record

The model and serial numbers are located at the rear of the drive unit. Record these numbers

in the spaces provided below. Refer to them whenever you call upon your Sony dealer

regarding this product.

Model No. Serial No.

WARNING

This equipment generates, uses, and can radiate radio frequency energy and if not installed

and used in accordance with the instructions manual, may cause interference to radio

communications. It has been tested and found to comply with the limits for aClass A

computing device pursuant to Subpart Jof Part 15 of FCC Rules, which are designed to

provide reasonable protection against such interference when operated in acommercial

environment. Operation of this equipment in aresidential area is likely to cause interference in

which case the user at his own expense will be required to take whatever measures may be

required to correct the interference.

CAUTION

Use of controls or adjustments or performance of procedures other than those specified

herein may result in hazardous radiation exposure.

DANGER

Invisible laser

radiation when

open. Avoid direct

exposure to beam.

DANGER

Radiations invisibles du

laser en cas d'ouvenure.

Eviter toute exposition

directs au faisceau.

4-614 -487-02

This label is affixed both on the top cover and front left corner of the inside cartridge tray.

1.Overview

The Sony SMO-D501 is an erasable optical disk drive using a5.25 inch {130mm) magneto-

optical (MO) disk. It can store approximately 650 megabytes (1024 bytes per sector) or 594

megabytes (512 bytes per sector) of data, The SMO-D501 complies with the Continuous-

Composite Format of 130mm Optical Disk starxJard which has been completed at the October

1987 ISO committee meeting. The MO disk is pregrooved and formatted with 1024 bytes per

sector and 17 sedors per track, or 512 bytes per sector and 31 sectors per track, using aspiral

track configuration.

The SMO-D501 achieves adata transfer rate of 7.40 megabits per second using a2400 rpm

rotational speed. The seek time is improved by anewly developed servo system.

The SMO-D501 is connected to the SMO-C501 MO Disk Controller with an M-ESDI (Modified

Enhanced Small Device Interface) which follows the Preliminary ANSI Working Document

X3T9.3/87-005 Revision 2.0.

The SMO-D501 contains the mechanical and optical components, the analog circuitry for the

data separation, servo systems, and the digital circuitry for drive control, formatting and

Interfacing with the disk controller. The use of new digital LSI's has resulted in acompact drive

with ahigh degree of reliability.

Soction 1: Overview 1

2. Soeelftcatlons

The following specifications are defined for the 130 mm magneto optical disk drive SMO-

D501. The recorded format is the Continuous- Composite Format of ISO 130mm Optical Disk

Standards.

2.1 Drive Specifications

The specifications of the SMO-D501 are shown in Table 2.1 and Table 2.2.

2Section 2: Specification

Table 2.1 :SMO-D501 SPECIFICATIONS (1/2)

Item Specification Remarks

Disk 130mm (5.25 inch) Formatted Address ;

double sided MO Disk Track 0Sector 0to

with acartridge Track 18750 Sector 16or 30

Capacity 1M- 10®

Formatted (per disk) 650 Mbytes (1024 bytes/sector)

594 Mbytes (512 bytes/sector)

(per side) 325 Mbytes (1024 bytes/sector)

294 Mbytes (512 bytes/sector)

Unformatted (per side) 433.5 Mbytes (1024 bytes/sector)

433.6 Mbytes (512 bytes/sector)

Disk Format Continuous/Composite ISO standard type A

Rotational Mode CAV CAV; Constant Angular Velocity

Write/Read Side 2Double Sided

Bytes per Sector 1024 or 512

Sectors per Track 17 or 31

Total Tracks per Side 18751

Rotational Speed 2400 rpm CAV

Avaraae Latency 12.5 msec

Seek Time

1Track 1msec Only jumping time

(5 msec) (Including overhead time)

Short Stroke (±64 Tracks) 30 msec Including overhead time

Average 120 msec

Full Stroke 200 msec

Transfer Rate

Data Transfer Rate 7.40 Mbps bps «bits per second

User Data Transfer Rate 680 Kbytes/sec (1024 bytes/sector)

620 Kbytes/sec (512 bytes/sector)

Section 2: Specification 3

Table 2.2 :SMO-D501 SPECIFICATIONS (2/2)

Item Specification Remarks

Mechanical Dimension Not include the connector

Welqht 3Kg

Power Requirements

DC Voltage +5V±5% Ripple voKage < 50 mVpp

+12V±S% Ripple voltage <100 mVpp

DC Current

+5V 1A(max.)

+12V 1A(typ.)

2.5 A(max.) at spinning-up and seeking

Operating Mount Horizontal or Vertical

Mounting Tilt ±5’

Environmental

Operating

Temperature 5-40 ‘C Recommend to use acooling fan

Relative Humidity 10-30% Not condensing

Max. Wet-bulb Temp. 29 “C

Temperature Gradient 10»C/Hour

Non-operating No disk

Temperature -20 -60 “C

Relative Humidity 5-90 %

Laser Diode

Type Semiconductor Laser

(GaAIAs)

Wave Length 790 nm, Continuous

Output Power SOmWmax

Beam Divergence 60* ±1.5*

Vibration

Operating 0.25 G5to 500 Hz Sine Sweep

Non-operating 0.5 G5to 500 Hz Sine Sweep

Shock

Operating 3SG 3msec Half Sine Pulse.

Non-operating 89G 3msec Half Sine Puise

30G 23 msec Trapezoidal Pulse

Laser Product Classification :Class 1(lEC 825)

4Section 2: Specification

2.2 Format Specifications

The Sony SMO-D501 complies with the Continuous-Composite Format of 130mm Optical

Disk Standard which has been completed at the October 1987 ISO committee meeting. Refer

to the standard specifications for details.

R29.0 -30.0 mm Head-in Area

(Formatted with negative addresses)

R30.0 -60.0 mm Data Area

(Formatted with the addresses from Track 0Sector 0to Track

18750 Sector 16)

R60.0 -61 .0 mm Head-out Area

(Formatted with the addresses more than Track 18751)

User data and defect management information are written in the Data Area.

2.2.1 Modulation Code

The SMO-D501 implements (2,7)RLL as the modulation code. The recording method adopts

pit-positfon recording of the (2,7)RLL and the code is decoded by detecting the peak levels in

a read mode.

The (2,7)RLL code is translated as shown in Table 2.5.

Table 2.5 :(2,7)RLL Modulation Code

Input Data (2.7)RLL

10 0100

11 1000

000 000100

010 100100

Oil 001000

0010 00100100

0011 00001000

Section 2: Specification S

2.2.2 Sector Format

The Sector Format is defined in Fig.2.1. and Fig.2.2 The ID field contains the preformatted

triple ID'S and the Data field contains 1024 bytes or 512 bytesof user data.

Each signal in the format is defined as follows:

SM (Sector Mark): 5byte length to identify asector header.

{pattern] 5337333350010010010

~II I

mark bit length channel coding bit

VFO (Variable Frequency Oscillator Signals): 12 or 8byte length to synchronize the

PLO (Phase locked oscillator) with the read out signal.

[pattern]

VF01: 01001001001001 -—010 0 10

VFO 2: 10010010010010 -—010010

00010010010010 010010

VFO 3: 01001001001001 010010

AM (Address Mark): 1byte length to detect ID fields.

[pattern] 0100100000000100

6Section 2: Specification

Table of contents

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