Sony CDU77E User manual

CDU77E
CD-ROM Drive Unit
User’s Guide
©1995 by Sony Corporation
CDU77E
CD-ROM Drive Unit
User’s Guide

INFORMATION
You are cautioned that any changes or modifications not expressly approved in this manual
could void your warranty covering this equipment.
Note: This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures:
– Reorient or relocate the receiving antenna.
– Increase the separation between the equipment and receiver.
– Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
– Consult the dealer or an experienced radio/TV technician for help.
3
English
2
Owner’s Record
The model and serial numbers are located on the top side of the drive. Record these numbers
in the spaces provided below. Refer to them whenever you call upon your sales representative
regarding this product.
Model No. __________________ Serial No. ___________________
Trademarks
●MS-DOS/Windows are registered trademarks of Microsoft Corporation.
●IBM PC, PC/XT, and PC/AT are registered trademarks of International Business Machines
Corporation.
●HP Vectra is a registered trademark of the Hewlett-Packard Company.
●Molex is a registered trademark of Molex, Inc.
●AMP is a registered trademark of AMP, Inc.
This CD-ROM Drive Unit is classified as a
CLASS 1 LASER PRODUCT.
The CLASS 1 LASER PRODUCT label is
located on the top of the drive.
Bei diesem CD-ROM-Laufwerk CDU77E
handelt es sich um ein Laser-Produkt der
Klasse 1. Ein entsprechender Aufkleber mit
der Beschriftung LASER KLASSE 1
PRODUKT befindet sich auf der Oberseite
des Geräts.
CAUTION INVISIBLE LASER RADIATION WHEN OPEN. DO NOT
STARE INTO BEAM OR VIEW DIRECTLY WITH
OPTICAL INSTRUMENTS.
VORSICHT UNSICHTBARE LASERSTRAHLUNG, WENN ABDECKUNG
GEÖFFNET. NICHT IN DEN STRAHL BLICKEN, AUCH
NICHT MIT OPTISCHEN INSTRUMENTEN.
ADVARSEL USYNLIG LASERSTRÅLING VED ÅBNING SE IKKE IND I
STRÅLEN-HELLER IKKE MED OPTISKE INSTRUMENTER.
ADVARSEL USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES. STIRR
IKKE INN I STRÅLEN ELLER SE DIREKTE MED OPTISKE
INSTRUMENTER.
VARNING OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR
ÖPPNAD. STIRRA EJ IN I STRÅLEN OCH BETRAKTA EJ
STRALEN MED OPTISKA INSTRUMENT.
VARO! AVATTAESSA OLET ALTTIINA NÄKYMÄTTÖMÄLLE
LASERSÄTEILYLLE. ÄLÄ TUIJOTA SÄTEESEEN ÄLÄKÄ
KATSO SITÄ OPTISEN LAITTEEN LÄPI.
This Label is located on
the top of the drive.
Dieser Aufkleber
befindet sich an der
Oberseite des Gehäuses.
To prevent fire or shock hazard, do not expose the unit
to rain or moisture.
To avoid electrical shock, do not open the cabinet.
Refer servicing to qualified personnel only.
WARNING
This unit uses CD-ROM discs with the following mark.
When you use this unit as a CD player, use compact discs
with the following mark.
CLASS 1
LASER PRODUCT
LASER KLASSE 1
PRODUKT
LUOKAN 1 LASERLAITE
KLASS 1 LASER APPARAT

Introduction
Features The CDU77E is an internal CD-ROM (Compact Disc Read-Only Memory)
drive unit designed for use with an IBM PC, HP Vectra, or compatible
computer. It can read as much as 650 Mbytes of digital data stored in a
single CD-ROM disc.
The CDU77E has the following features:
General
●5 1/4 inch half-height drive form factor.
●ATA-PI interface compliant (SFF-8020).
●128-kbyte buffer memory.
●Audio CD like drawer loading of a disc without using a caddy.
●Power loading and power eject of a disc. The disc can also be ejected
manually.
●Housed in an airtight frame casing.
Supported disc format
●Reads data in CD-ROM, CD-ROM XA, CD-I and CD-I Ready standard
formats.
●Reads data in CD-BRIDGE format including PHOTO-CD.
●Reads standard CD-Digital Audio encoded discs.
Performance
●Supports standard, double and quadruple speed operations with real
time error correction.
●Fast access time ensuring reliable high-speed data access.
Audio
●Outputs 16-bit digital audio data over the ATA-PI interface.
●Equipped with audio line output and headphones jack for audio CD
playback.
Note:
The CDU77E is not equipped with an ADPCM audio circuitry required to
support CD-ROM XA and CD-I compatible audio modes. In addition, the
unit does not support the CD-I graphic decoding function; it has to be
provided by the system.
Introduction 5
English
Contents
Introduction 5
Features...................................................................................................5
Software Requirement.............................................................................6
Example of System Setup .......................................................................6
Location and Function of Parts and Controls 7
Front Panel ..............................................................................................7
Rear Panel...............................................................................................8
Precautions 9
Installing the Drive in Your Computer 10
Preparation.............................................................................................10
Setting the Jumpers...............................................................................11
Opening the Computer...........................................................................12
Preparing a Space for the Drive............................................................13
Mounting the Drive.................................................................................14
Connecting the Drive .............................................................................15
Reassembling the Computer .................................................................17
Installing the Software Driver 18
How to install..........................................................................................18
Operating the Drive 19
Starting the Drive...................................................................................19
Ejecting the Disc....................................................................................21
How to Use the Disc Locks....................................................................22
Specifications 24
4 Contents

English
Location and Funktion of Parts and Controls 7
Location and Function of Parts and Controls
Front Panel
1Disc drawer
Accepts a CD-ROM disc on its tray.
2Headphones jack
Accepts a stereo headphones set. Analog audio signals are output.
3Volume control
Controls the volume level of sound output from the headphones jack 2.
4Busy indicator
This indicator lights up in one of the following colors to show the unit’s
status.
●Green: Power on
●Amber: TOC (table of contents) read, seek, data read, audio playback.
In addition to the above, the indicator flashes alternately in amber and
green while the drawer is in motion.
5Emergency eject hole
Used to open the disc drawer manually when neither the eject button 6
nor a software command works. Insert a pointed object, such as a paper
clip, into this hole and push.
6Eject button
Opens and closes the disc drawer.
Software Requirement
To access data on CD-ROM discs, the appropriate device driver and
MSCDEX or its equivalent must be installed in your computer.
The application software you need for using the data on a CD-ROM disc
depends on the type and format of the target data. See the manual supplied
with your CD-ROM disc for instructions.
Example of System Setup
To use the CD-ROM drive unit, the following components are required:
●Computer (IBM PC, PC/XT, PC/AT, HP Vectra, or equivalent)
●Floppy disk drive
●IDE interface cable (40 to 40 pin flat cable)
●Software (Device driver, Utilities)
6 Introduction

English
8 Location and Funktion of Parts and Controls Precautions 9
Precautions
■Installation
●Avoid placing the drive in a location subject to:
– high humidity
– high temperature
– excessive dust
– mechanical vibration
– direct sunlight
●The drive can be used in either a horizontal or vertical position.
●Do not force the power cable. It is keyed to protect the drive.
■Operation
●Do not move the drive when it is in use. Doing so may cause data error
and damage the optical pick-up.
●Avoid exposing the drive to sudden changes in temperature as
condensation may form on the lens inside the drive. Should the
surrounding temperature suddenly rise while the drive is turned on, stop
using the drive and leave the power on at least one hour before
operating it or turning it off. Operating the drive immediately after a
sudden increase in temperature may result in a malfunction.
■Transportation
●Close the disc drawer before moving the drive.
●Keep the original packing materials. When you need to ship the drive to
another location, repacking it in its original container will help you
transport it safely.
Rear Panel
1F. GND (Frame ground) tab
Connect to one of the host computer’s ground cables when the drive’s
frame is not in direct contact with the computer.
2Unused
3ANALOG AUDIO connector
Outputs analog audio signals.
4Configuration Jumpers
See page 11 for details.
5INTERFACE CONNECTOR (IDE bus)
Connect to IDE host adapter using a connecting cable.
6DC INPUT (power-in) connector
Connect to the power supply of the host computer.
Pin 1

Setting the Jumpers
Set the jumpers on the rear of the drive in accordance with the
configuration of your computer system.
The jumpers are preset at the “MASTER” position as illustrated at the
factory.
Notes for configuration jumpers:
●Designation of the Drive Number is generally set by inserting a jumper
pin on either the MASTER or the SLAVE pin.
●When the CDU77E is daisy-chained with a Hard Disk Drive on an IDE
Card, set the Hard Disk Drive as MASTER and the CDU77E as
SLAVE.
●If the CDU77E is the only device connected to the IDE Card, set the
CDU77E as MASTER.
However, it should be noted that some personal computers may use CSEL
in lieu of the foresaid MASTER/SLAVE selection. In this case, remove the
existing jumpers from MASTER and SLAVE, and set a jumper on CSEL.
When the CSEL signal of the interface connector is set low, the drive is
designated as Drive 0. When the CSEL is set high, the drive is designated
as Drive 1.
Consult your PC manufacturer, IDE Card manufacturer or dealer for
further details.
Installing the Drive in Your Computer 11
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Installing the Drive in Your Computer
This section provides an example of instruction for installing the CD-ROM
drive unit into your personal computer.
To connect the CDU77E directly to the PC’s IDE port, consult your PC
manufacturer for instruction.
Preparation You need the following parts and tools (these are not supplied with the
drive):
●A flat-blade screwdriver
●Four screws 3 mm in diameter and 6 mm in length.
●Two mounting rails if your computer has mounting tracks.
Unplug the computer and disconnect the cables attached to the back to
give yourself more room to work. Do not turn on the power of the
computer before completing the entire installation process.
10 Installing the Drive in Your Computer

Preparing a Space for the Drive
1Remove the screws and brackets securing the floppy disk drive and the
lower drive bay blanking plate.
2Disconnect the floppy disk drive.
3Remove the floppy disk drive and the blanking plate.
Installing the Drive in Your Computer 13
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Opening the Computer
1If your computer has its rear side covered by a plastic panel attached
with plastic hook pad, pull it off.
2Remove the cover mounting screws.
3Remove the cover of the computer.
12 Installing the Drive in Your Computer
Computer Remove a plastic panel.
Cover mounting screw
Remove the screws.
Remove the computer cover.
Rear plastic panel
Floppy disk drive
Lower drive bay
blanking plate
Floppy disk drive
Floppy disk drive
Blanking plate

Connecting the Drive
Connect the drive to the computer with the following connectors:
●DC INPUT connector
●F. GND tab (unless the drive’s frame is in direct contact with the
computer’s chassis).
●AUDIO OUT connector (if you plan to connect audio equipment)
●INTERFACE CONNECTOR.
■DC INPUT connector
The pin assignment is as follows.
After matching the beveled edges, insert the plug of the power supply cable
to the DC INPUT connector and push it firmly in place.
Caution: Improper connection may damage the drive and void the warranty.
Installing the Drive in Your Computer 15
English
Mounting the Drive
If mounting rails are necessary, attach them to the drive in the same way as
your floppy disk drive and slide the drive into the lower drive bay.
If mounting rails are not required in your system, screw the drive in place.
14 Installing the Drive in Your Computer
Slide the drive into the lower bay.
F. GND tab INTERFACE CONNECTOR
DC INPUT connector
AUDIO OUT
connector
GND
+5 V DC +12 V DC
GND
DC INPUT connector
Power supply cable
(4-pin connection cable)

Reassembling the Computer
1Reinstall the floppy disk drive in the top drive bay.
2Reconnect the interface cables to the floppy disk drive.
3Fasten the screws and front brackets as they were before.
4Tuck the cables behind the drives so that they do not protrude above the
power supply module.
5After checking the following points, slide the computer’s cover on and
fasten the cover mounting screws at the back of the computer.
●Are the connections between the drive and computer correct?
●Are the jumpers set to the appropriate positions?
6Remount the rear plastic panel and refer back to the proper installation
section if you answered “no” to either of the questions above.
Installing the Drive in Your Computer 17
English
Reinstall the floppy disk drive.
Tuck the cables.
Power supply
■F. GND tab
Connect the F. GND tab to one of the host computer’s ground cables
unless the drive’s frame is in direct contact with the computer’s chassis
(a situation not likely under normal circumstances).
The frame ground cable recommended is the one using an AMP 1-480435-0
housing and 170203-2 or 60711-1 contact.
■AUDIO OUT connector
The pin assignment is as follows:
■INTERFACE connector
Firmly insert one end of the interface cable into the INTERFACE
CONNECTOR.
16 Installing the Drive in Your Computer
F. GND tab
Frame ground cable
pin Audio Signal
1 R signal
2 R ground
3 L ground
4 L signal
INTERFACE
CONNECTOR
Interface cable
Pin 1

Operating the Drive
This section describes how to start the drive and eject a disc.
Starting the Drive
1Turn on the power of your computer.
2Press the eject button.
The drawer comes out automatically.
3Place a disc in the drawer with its label side up.
Operating the Drive 19
English
Installing the Software Driver
The installation diskette enclosed in the package contains two software
items:
●Installer
●Device driver for MS-DOS/Windows 3.1
Note:
Both Microsoft CD-ROM Extensions (MSCDEX) or equivalent and Sony’s
Device Driver are required to run the CDU77E under the MS-DOS and
Windows 3.1 environment.
Therefore, prior to loading the installation diskette, make sure that the
MSCDEX is in the DOS directory of your hard disk drive (C:\DOS).
Although MSCDEX is included in the most up-to-date MS-DOS (ver. 6.2),
you may need to obtain the software from your PC dealer if you do not
have it.
The installer will automatically load MSCDEX via the AUTOEXEC.BAT
file and installs the Device Driver via the CONFIG.SYS file, if MSCDEX
is already in Drive C:\DOS.
How to install
Load the diskette into the floppy disk Drive A, and type:
>A:\setup
and then, press the Enter key.
After installation, the following lines are added to CONFIG.SYS and
AUTOEXEC.BAT files.
in CONFIG.SYS:
Device=C:\DEV\ATAPI_CD.SYS /D:mscd000 /I:0
in AUTOEXEC.BAT:
C:\DOS\MSCDEX.EXE /D:mscd000 /M:12 /V
18 Installing the Software Driver
Place a disc with
its label side up.
Press the eject button.

Ejecting the Disc
To eject the disc, press the eject button on the front panel. The drawer
comes out automatically.
■Opening the drawer manually in an emergency
You can open the drawer manually when it fails to come out by means of
the eject button or software commands. To do this, follow the procedure
below:
1Turn off the power of your computer.
2Insert a pointed object, such as a paper clip, into the emergency eject
hole and push.
After removing a disc from the drive unit, consult your dealer or qualified
service personnel.
Operating the Drive 21
English
Note:
When the drive is set up in vertical position, use the disc locks to prevent
your disc from falling. See “How to Use the Disc Locks” on page 22 for
details.
4Gently push the drawer or press the eject button to close the drawer.
The drive may begin reading the Table of Contents (TOC) data when it
accepts the disc. The busy indicator lights up in amber while the drive
is reading the TOC.
For subsequent drive operations, follow the instructions provided with
the application software you are using.
Note:
The busy indicator stays lit in amber if:
– the disc is not properly placed on the loading tray
– a malfunction occurs.
In either case, eject the disc and place it in the loading tray again making
sure that it sits properly in the tray. If doing this does not solve the
problem and the busy indicator still remains lit in amber, consult your
dealer or qualified service personnel.
Caution: Do not forcibly close the disc drawer. Applying excessive force
may damage the loading mechanism. The tray’s mechanism is designed to
operate with a “feather touch”.
20 Operating the Drive
Disc locks
Press the eject button.
Insert a pointed object to
the emergency eject
hole.
Approx. 40 mm

When the drive’s right side is down
To facilitate disc handling, set the disc locks B, C and D into the locked
position, and leave the disc lock A in the unlocked position.
When the drive’s left side is down
To facilitate disc handling, set the disc locks A, C and D into the locked
position, and leave the disc lock B in the unlocked position.
Operating the Drive 23
English
How to Use the Disc Locks
The disc tray has four disc locks that prevent the disc from falling when
the drive is set up in vertical position.
Note:
When the drive is used in horizontal position, you do not need to lock the
disc.
■Locking and unlocking
All of the four locks are set in the unlocked position (facing outward)
when the drive is shipped from the factory. To set the lock in the locked
position, turn it with your fingers until you hear a click so that it faces
inward.
22 Operating the Drive
Disc locks
locked unlocked
to unlock to lock
BC
DA
DA
CB
Top side
Right side
Top side
Left side

■Dimensions and Mass
Dimensions Approx. 146 x 41.4 x 208 mm (w/h/d)
(5 3⁄4x 1 11⁄16 x 8 1⁄4inches)
Mass Approx. 0.80 kg (1 lb 13 oz)
■Power requirement
Voltage +5 V ± 5 % DC and +12 V DC ± 10 %
■Mating Connectors
DC INPUT connector Housing: AMP 1-480424-0 or equivalent
Pin header: AMP 170147-1 or 4 for AWG 24-18
AMP 170120-1 or 4 for AWG 20-14
INTERFACE CONNECTOR
AMP 746285-9 or equivalent
AUDIO OUT connector Molex 70066C or G, 700400C or G and
70430C or G, or equivalent
■Laser
Type Semiconductor laser GaAlAs
Wave length 780 nm
Output power 0.6 mW
Beam divergence 53.4 ° ± 1.5 °
Design and specifications are subject to change without notice.
Specifications 25
English
Specifications
■General
Host interface ATA-PI interface
Disc
Acceptable discs CD-Digital Audio discs
CD-ROM mode-1 data discs
CD-ROM mode-2 form 1 / form 2 data discs
CD-ROM XA discs (readable)
Audio-combined CD-ROM discs
CD-I discs (readable)
CD-I Ready discs (readable)
CD Bridge discs
Photo CD discs (single and multi session)
Disc diameter 12 cm or 8 cm
■Drive performance
Data transfer rate
Sustained rate 150 kbytes/s (normal)
300 kbytes/s (double)
600 kbytes/s (quadruple)
Data transfer mode Mode 1 (5.22 Mbytes/s)
I/O Channel ready supported
Average access time 190 ms (typical/quadruple)
■Audio
Output level
Line out 0.75 V at 47 kΩ
Headphone 0.55 V at 32 Ω
■Environmental conditions
Operating
Temperature 5° C to 50° C (41° F to 122° F)
Humidity 10 % to 90 % (Max wet bulb 29° C)
Atmosphere Non-condensing
Non-operating
Temperature -30° C to 50° C (-22° F to 122° F)
Humidity 10 % to 90 %
Atmosphere Non-condensing
24 Specifications

■Dimension diagram
Important:
The overhang of the screws should not exceed 6.0 mm from the surface of
the side panels or the bottom plate.
26 Specifications
(51/2)
(17/8)(3
1/8)
79.25
47.5
+
+
+
+
139.7
10
(1/32)
(1/32)
21.9(7/8)
(13/32)
0.5 0.4
(111/16)
41.4
5
(111/16)
42.3 203 (8)
146(53/4)
(7/32)
148 (57/8)
4 M3 mounting screws (4 on each side)
4 M3 mounting screws