CDU924S
CD-R Drive Unit
CDU924S
CD-R Drive Unit
User’s Guide
Mode d’emploi
Bedienungsanleitung
©1996 by Sony Corporation
Rev. 1.0
User’s Guide
BKC: 42264600
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Contents
Introduction
6
7
8
Example of System Setup
Location and Function of Parts and Controls
Front Panel.............................................................................................................8
Rear Panel .............................................................................................................9
Precautions
10
Installing the Drive Unit into the Computer
11
Getting Started......................................................................................................11
Setting the Jumpers..............................................................................................11
Opening the Computer.........................................................................................13
Mounting the Drive ...............................................................................................14
Connecting the Drive............................................................................................15
Mounting a Host Adapter......................................................................................18
Reassembling the Computer................................................................................19
Installing the Software Driver
20
Using Discs and Caddies
21
Loading a Caddy with a Disc ...............................................................................21
Storing Discs and Caddies...................................................................................23
Care of Discs........................................................................................................23
Operating the Drive
24
Starting Up ...........................................................................................................24
Ejecting a Caddy ..................................................................................................25
Specifications
27
5
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Introduction
Example of System Setup
The CDU924S is a drive unit for CD-R discs, which store a maximum of
To use the CDU924S, at least the following components are necessary.
650 Mbytes of digital data.
The drive unit has the following features:
●
●
●
●
●
Computer (IBM-PC*, HP Vectra**, or compatible equipment)
CDU924S CD-R Drive Unit
SCSI host adapter
Floppy disk drive
SCSI interface cable (Single ended, 50 pin flat.)
●
●
●
●
Reads and writes data in both CD-ROM and CD-ROM XA standard
formats.
Reads and writes data in CD-BRIDGE format which includes
PHOTO-CD.
Reads standard CD-DA (“Red Book”) encoded discs, and reads and
writes CD-R discs conforming to “Orange Book Part II.”
Supports the following write modes: Disc at once, Track at once,
Variable packet, Fixed packet, and Multi session.
Outputs the audio as 16-bit digital data over the SCSI interface.
Supports read and write operation at both standard speed and double
speed, and read-only operation at quadruple speed.
Supports real time error correction at all speeds.
5 1/4 inch half-height drive form factor.
Here are two examples of system setup.
Software
Software
Example 1
Example 2
●
●
Host computer ID No. 7
●
●
●
●
SCSI bus interface embedded. (Based on SCSI-2)
1 MB buffer memory.
Capable of audio CD playback provided with audio line output and
headphones jack.
ID No. 6
Host computer
CDU924S
Floppy disk
drive
Host adapter
ID No. 5
●
●
●
Fast access time assures high-speed reading and writing operations.
CD caddy for disc protection.
Automatic locking of the optical pick-up when the caddy is ejected.
This ensures safety during transport.
CDU924S
ID No. 4
ID No. 2
●
Emergency eject function which allows the caddy to be ejected
manually.
ID No. 3
ID No.1
●
●
Capable of real time layered error correction.
Employs a casing with an airtight frame.
■ Software requirement
Additional application or driver software required to operate this unit.
SCSI bus connection
Audio connection
*
IBM PC is a registered trademark of International Business Machines Corporation.
** HP Vectra is a registered trademark of the Hewlett-Packard Company.
6
Introduction
Example of System Setup
7
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Location and Function of Parts and Controls
Front Panel
Rear Panel
GND
GND
CD Caddy
ݗ ݘ Jumper block for SCSI bus
Specify assignment of the SCSI bus.
Terminators
ݗ ݘ ݙ ݚ Caddy insertion slot
Accepts a caddy loaded with a CD-ROM or CD-R disc.
The terminator resistors are inserted into the sockets. Remove the
resistors when the SCSI bus is to be terminated externally.
Eject button
Ejects the caddy from the drive unit.
Note:
Some models are shipped without terminators.
When installing the terminators, orient them so that the GND pin(the
end marked with a dot) is toward the right side of the socket.
Emergency eject hole
Insert a fine rod into this hole to eject a caddy manually in emergencies.
ݙ ݚ ݛ Power-in connector
Connect to the power supply of the host computer.
Busy indicator
This indicator shows the unit’s status in various phases of operation.
* Seek, read and play audio:
* Write (disc at once or track at once): Flashes amber
When the power is turned on, the indicator lights up green.
Lights up amber and stays lit
SCSI bus interface connector
Connect to a SCSI host adapter using a connecting cable.
Audio output connector
Outputs analog audio signals.
See page 16 for detail.
ݛ ݜ Volume control
Controls the volume of the analog audio output provided via a
headphones jack.
ݜ Frame ground tab
Connect to one of the host computer’s ground cables when the drive
frame is not in direct contact with the computer.
Headphones jack
Provides two channel analog audio output.
8
Location and Function of Parts and Controls
Location and Function of Parts and Controls
9
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Precautions
Installing the Drive Unit into the Computer
■ Installation
As you go through this section, you may wish to refer to your computer’s
manual for a more detailed description of how to install internal drives.
●
Avoid placing the drive in a location subject to:
– high humidity
– high temperature
– excessive dust
Getting Started
– mechanical vibration
– direct sunlight.
●
Prepare the necessary parts and tools that have not been supplied:
– a flat-blade screwdriver
Use the drive in a horizontal position. Do not use it in a vertical or tilted
position.
– two mounting rails if your computer has mounting tracks.
Unplug the computer and disconnect the cables attached to the
back for your own safety. Do not turn on the power of the computer
before completing the entire installation process.
●
■ Operation
●
●
Do not move the drive during operation. This may cause it to
malfunction during reading or writing.
Setting the Jumpers
Avoid exposing the drive to sudden changes in temperature as
condensation may form on the lens inside the drive as a result. Should
the surrounding temperature suddenly rise while the drive is on, wait at
least one hour before you turn off the power. Operating the drive
immediately after a sudden increase in temperature, may result in a
malfunction during reading or writing.
Set the jumpers on the rear panel of the drive unit in accordance with the
configuration of your computer system.
The jumpers are preset, as illustrated, below at the factory.
■ Transportation
DEVICE TYPE
ID SELECT
PREVENT/ ALLOW
●
Keep the original packing materials for future transport of the drive.
Remove the caddy before moving the drive and, if you take the drive
out of the computer, repack the drive as you received it.
●
0
1
2
TEST MODE
KEY
= Pin removed
Terminators
12V+10%
GND
5V+5%
DC INPUT
INTERFACE CONNECTOR
2
TEST MODE
1
0
PREVENT/ALLOW
ID SELECT
R
GND
L
DEVICE TYPE
AUDIO OUT
F.GND
10
Precautions
Installing the Drive Unit into the Computer
11
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Remove the jumper to set to OFF, and install the jumper to set to ON.
The recommended jumper is AMP* Shunts (14227-1), JAE** Short
Socket (PS-2SH4-1) or equivalent.
Opening the Computer
1 If your computer has its rear side covered by a plastic panel attached
The following table shows the function of each jumper.
with plastic hook pad, pull it off.
Jumper
Function
2 Remove the cover mounting screws.
DEVICE
TYPE
The setting of this jumper determines whether the
SCSI device type code in the inquiry data is WO
or CD-ROM.
ON: WORM
OFF: CD-ROM
ID SELECT
Assign the drive unit’s ID number by setting these
jumpers to ON or OFF. Do not assign the same
number as one used for other SCSI device.
ID number
Jumper settings
0
1
2
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
0
1
2
3
4
5
6
7
Screws
3 Remove the cover of the computer.
KEY
Used to prevent the SCSI bus interface connector
from being plugged in upside down.
PREVENT/
ALLOW
ON: Allows insert and removal of a CD caddy
with the eject button and the eject
command.
OFF: Prevents insert and removal of a CD
caddy with the eject button or an eject
command.
TEST MODE ON: Enables test mode.
OFF: Enables normal operation.
Factory settings
Notes:
●
The upper row of pins is ground.
●
ID SELECT, PREVENT/ALLOW, and TEST MODE are
recognized when the power supply is turned on or SCSI is reset.
TEST MODE is used exclusively for the factory testing. Do not set
TEST MODE to ON. Doing so may cause an unexpected result.
●
*
AMP is a registered trademark of AMP, Inc.
** JAE is a registered trademark of Japan Aviation Electronics Industry, Ltd.
12
Installing the Drive Unit into the Computer
Installing the Drive Unit into the Computer
13
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Mounting the Drive
Connecting the Drive
■ Power-in connector
1 Remove the screws and brackets from both sides of the drive spaces.
Insert the plug and push it firmly in place.
Match beveled edges
Power-in connector
Power supply connector
(4-pin connection cable)
2 If mounting rails are necessary, attach them to the drive unit in the same
way as the ones on your floppy disk drive and slide the drive unit into
the bottom half-height space. Otherwise screw the drive unit in place.
The power supply connector recommended has Molex 8980-3 contacts and
a Molex 8981-04P housing.
Pin assignment
GND
GND
+12V DC
+5V DC
14
Installing the Drive Unit into the Computer
Installing the Drive Unit into the Computer
15
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■ Frame ground
■ Interface connector
1 Insert one end of the interface cable into the interface connector firmly.
When normally installed, the drive unit is not in contact with the host
computer directly and should be grounded. Connect the frame ground tab
to one of the host computer’s ground cables.
Frame ground tab
Interface
connector
Frame ground
cable
The frame ground cable recommended has a AMP 1-480435-0 housing and
170203-2 or 60711-1 contacts.
2 Attach the other end of the cable to the host adapter.
■ Audio output connector
The audio output connector recommended is Molex 5159PBT contacts and
5051-04 housing or 5103 PBT contacts and 5102-04 housing.
Host adapter
Pin assignment
Interface
connector
Left signal
GND
Right signal
GND
16
Installing the Drive Unit into the Computer
Installing the Drive Unit into the Computer
17
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Mounting a Host Adapter
Reassembling the Computer
Install a host adapter in the computer by inserting it securely in a system
expansion slot. Refer to the operating instructions of the host adapter for
complete instructions on its installation and the assignment of its switches.
1 Tuck the cables behind the drives so that they do not come up above the
power supply.
Power supply
Check the following before closing the computer:
Note:
●
Are the connections between the drive and computer correct?
Are the switches set to the appropriate positions?
If you connect external SCSI device(s), you must remove a host adapter’s
terminator resistors.
●
2 Slide the computer’s cover on and fasten the cover mounting screws at
the back of the computer.
Computer
Remove the host
adapter's terminator.
3 Remount the rear plastic panel, if any.
Floppy disk
drive
ID No. 7
CDU924S
Host adapter
Attach the terminator to
the last unit in the system.
18
Installing the Drive Unit into the Computer
Installing the Drive Unit into the Computer
19
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Installing the Software Driver
Using Discs and Caddies
MSCDEX and the device driver for an ordinary CD-ROM drive can be
Loading a Caddy with a Disc
used when using the CDU924S as a SCSI CD-ROM drive.
Use the device driver for a CD-R drive when using the CDU924S as a
recordable drive.
Be sure to install the device driver before operating the drive. Refer to the
manual supplied with the host adapter for instructions.
1 To open the caddy lid, press the tabs on the both sides of the caddy at
the end opposite to the shutter.
2 Set a disc, with its label upward, in the caddy.
Be careful not to touch the recording surface when setting a CD-R disc
in the caddy. Data cannot be recorded if the recording surface is
contaminated.
20
Installing the Software Driver
Using Discs and Caddies
21
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3 Close the lid firmly.
Storing Discs and Caddies
●
●
Remove the caddy from the drive unit before moving the drive.
Do not store the disc and caddy in a location subject to:
– high humidity
– high temperature
– excessive dust
– direct sunlight
Care of Discs
●
●
●
Hold the disc by its edge. Do not touch the surface.
Wipe the CD-ROM disc with the optional CD cleaner to clean it.
Do not wipe a CD-R disc with a cleaner before recording data. To avoid
scratching the recording surface, blow away dust using an air blower.
Important:
●
Do not drop the disc or the caddy.
●
The caddy is designed so that its shutter automatically opens when it is
inserted into the drive unit. Do not open the shutter manually and touch
the disc.
●
Data cannot be recorded if the recording surface is contaminated.
●
The caddy is precisely adjusted at the factory. Do not disassemble it.
22
Using Discs and Caddies
Using Discs and Caddies
23
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Operating the Drive
Make sure that the application software is installed in the host computer
before using the drive.
In such a case, eject the caddy and re-insert it properly. If the busy
indicator remains lit amber, consult your dealer or qualified service
personnel. The busy indicator also lights amber during audio play.
However, this is not a malfunction.
Starting Up
Ejecting a Caddy
1 Turn on the power supply.
2 Insert the caddy into the drive slot with the disc’s label facing up, and
push it partially into the drive until the automatic loading mechanism
pulls the caddy in.
1 Turn on the power supply.
2 Press the eject button on the drive unit.
Important:
When inserting the caddy, let the automatic loading mechanism pull it into
the drive by itself. Do not hold onto the caddy or attempt to overpower the
loading mechanism.
Notes:
●
The eject button does not work if it is disabled by the software.
To eject a caddy when the eject button is disabled by the software:
– Make sure that the jumper block’s PREVENT/ALLOW is set to ON.
– Turn the power of your computer off, and turn it on again. (Or reset
the SCSI bus using a software command.)
The drive begins reading the Table of Contents (TOC) data. The busy
indicator lights amber while the TOC data is being read.
When the busy indicator changes to green, the drive is ready to receive
commands, and data may be retrieved from the disc.
After loading the CD-R disc, it takes a moment for the drive to become
ready while the Program Memory Area is read.
●
From here on, follow the instructions provided with the application
software.
Notes:
●
The drive unit does not allow a caddy to be inserted if:
– PREVENT/ALLOW of the jumper block is set to OFF.
– the host computer is set to the PREVENT mode by the software.
The busy indicator keeps on lighting amber if:
– the disc is not properly inserted.
●
– a malfunction occurs.
24
Operating the Drive
Operating the Drive
25
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Specifications
■ Ejecting a caddy manually in an emergency
In the event of electrical or mechanical failure of the drive unit, a manual
■ General
Host interface
Read Function
SCSI-2, single ended, 50 pin
Acceptable discs:
CD-ROM Mode-1 data discs
CD-ROM Mode-2 data discs
CD-ROM XA discs
emergency eject is provided to allow removal of the caddy from the drive
unit.
CD-Audio discs
1 Turn off the power of your computer.
Audio-combined CD-ROM discs
(includes CD-EXTRA)
CD-I discs
2 Insert a pointed object, such as a paper clip, into the emergency eject
hole, and push with hand. (Typical required force is 46 N [4.7 kg])
CD-I Ready Discs
CD Bridge discs
CD-R discs (Conforming to
“Orange Book Part II”)
Write Function
Applied Format:
CD-ROM Mode-1
CD-ROM Mode-2
CD-ROM XA
CD-Audio
Audio-combined CD-ROM
CD-I
CD-I Ready
CD Bridge
Writing Method:
Disc at once
Track at once
Variable packet writing
(Packet size: max. 1 Mbyte)
Fixed packet writing
(Packet size: max. 1 Mbyte)
Multi-session
at least 35 mm
After removing the caddy from the drive unit, consult your dealer or
qualified service personnel.
Cache memory (R/W)
Disc diameter:
1 Mbyte
12 cm
Rotational speed
Innermost track:
600 min–1 (600 rpm) at CLV = 1.4 m/s
(normal)
1200 min–1 (1200 rpm) (double)
2400 min–1 (2400 rpm) (quadruple)
200 min–1 (200 rpm) at CLV = 1.2 m/s
(normal)
Outermost track:
400 min–1 (400 rpm) (double)
800 min–1 (800 rpm) (quadruple)
26
Operating the Drive
Specifications
27
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■ Drive performance
Data transfer rate
Shock
Operating
Read: 49 m/s2 (5 G) at 11 ms half sine
wave (includes 5 retries)
Sustained rate (Mode 1): 150 kbytes/s (normal)
300 kbytes/s (double)
600 kbytes/s (quadruple)
SCSI Interface
Write: 4.9 m/s2 (0.5 G) at 11 ms half sine
wave
Non-operating
Transportation
490 m/s2 (50 G) at 11 ms half sine wave
76 cm drop (with standard individual package)
Burst rate:
2.5 Mbytes/s
4.0 Mbytes/s (synchronous)
■ Dimensions and weight
Access time
Full stroke:
450 ms (typical/normal)
420 ms (typical/double)
400 ms (typical/quadruple)
360 ms (typical/normal)
300 ms (typical/double)
250 ms (typical/quadruple)
Dimensions
Mass
146.05 x 41.4 x 203.2 mm (w/h/d)
(5 3/4 x 1 5/8 x 8 inches)
1.2 kg
Average:
■ Power requirement
Voltage
Ripple
+5 V ±5% DC and +12 V DC ±10%
+5 V: 0.05 Vp-p
■ Reliability
+12 V: 0.1 Vp-p
MTBF:
100,000 POH (with 25% duty cycle)
Current
Hold track state
+5 Vdc
+12 Vdc
< 750 mA (Max)
< 600 mA (Max)
■ Audio
Seeking, spin up & write
(50% duty cycle)
Output level
Line out:
+5 Vdc
740 mA (Typ)
< 1200 mA (Max)
620 mA (Typ)
0.7 V at 47 kΩ
0.55 V at 32 Ω
Headphone:
+12 Vdc
< 1400 mA (Max)
■ Environmental conditions
Relative humidity
■ Connectors
10% to 90% (no condensation)
Temperature
Operating
Power-in connector
Audio connectors
Molex 53450-5411 or equivalent
Molex 50460-4A or equivalent
5°C to 45°C (41°F to 113°F)
–40°C to 60°C (–40°F to 140°F)
(within 72 hours)
–30°C to 50°C (–4°F to 122°F)
(within 6 months)
Transportation
■ Laser
Storage
Type
Wave length
Output power
Semiconductor laser GaAlAs
778 ~ 787nm (at 25°C)
2.5 mW (Read)
35 mW (Write)
60 degree
Temperature and
humidity gradients
Vibration
10°C/hour, 10%/hour
Operating
Read: 1.96 m/s2 (0.2 G peak) at 5 Hz to
300 Hz (sweep)
Beam divergence
Write: 0.98 m/s2 (0.1 G peak) at 5 Hz to
300 Hz (sweep)
Non-operating
Transportation
19.6 m/s2 (2 G peak) at 7 Hz to 300 Hz
1.44 m2/s4-Hz (0.015 G2/Hz) at 5 Hz to 50 Hz
28
Specifications
Specifications
29
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■ Supplied accessory
User’s Guide
■ Dimension diagram
(1 each)
(1 each)
Disc Caddy OPA-2000
41.4(1 5/8)
21.84(7/8)
146.05
(5 3/4)
■ Optional accessories
139.7
(5 1/2)
9.91(13/32)
CD ROM discs:
YHDS-50 “CD-ROM Test Disc Type 1.3”
(equivalent to YHDS-4)
YHDS-100 “CD-ROM Test Disc Type 2.0”
(audio-combined)
Additional caddies:
OPA-2000
OPA-1011/2
■ Crystal frequency
22.5792 MHz
24.0000 MHz
33.8688 MHz
Design and specifications are subject to change without notice.
4-M3 Mounting
screws
148.5
(5 7/8)
4-M3 Mounting screws
0.6 (1/32)
(1/32) 0.5
42.5 (1 11/16)
Unit : mm (in)
Important
Screws must not extend more than 4.0 mm into the side panels or the
bottom plate.
30
Specifications
Specifications
31
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