Roland DM-80 User manual

Roland
MULTI
TRACK
DISC
RECORVER
DM-80
OWNER’S MANUAL
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CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
A
ATTENTION RISQUE ОЕ СНОС ELECTRIQUE NE PAS OUVRIR
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
A A
The lightning flash with arrowhead symbol, within an equilateral
triangle,
is
intended
to
alert
the
user
to
the
presence
of
un-
insulated
"dangerous
voltage"
within
the
product's
enclosure
thal
may
be
of
sufficient
magnitude
to
constilule
a
risk
of
electric shock to persons.
The
exclamation
point
within
an
equilateral
triangle
is
intended
to
alert
the
user
to
the
presence
of
important
operaling
and
maintenance
(servicing)
instructions
in
the
literature
accom-
panying
the
product.
IMPORTANT
SAFETY
INSTRUCTIONS
WARNING
—
When
using
electric
products,
basic
precautions
should
always
be
followed,
including
the
following:
. Read all the instructions before using the product.
.
Do
not
use
this
product
near
water
—
for
example,
near
a
bathtub,
washbowl,
kitchen
sink,
in
a
wet
basement,
or
near
a
swimming
pool,
or
the
like.
.
This
product
should
be
used
only
with
a
cart
or
stand
that
is
recommended
by
the
manufacturer.
.
This
product,
either
alone
or
in
combination
with
an
amplifier
and
headphones
or
speakers,
may
be
capable
of
producing
sound
levels
that
could
cause
permanent
hearing
loss.
Do
not
operate
for
a
long
period
of
time
at
a
high
volume
level
or
at
a
level
that
is
uncomfortable.
If
you
experience
any
hearing
loss
or
ringing
in
the
ears,
you
should
consult
an
audiologist.
.
The
product
should
be
located
so
that
its
location
or
position
does
not
interfere
with
its
proper
ventilation.
.
The
product
should
be
located
away
from
heat
sources
such
as
radiators,
heat
registers,
or
other
products
that
produce
heat.
.
Avoid
using
the
product
where
it
may
be
affected
by
dust.
.
The
product
should
be
connected
to
a
power
supply
only
of
the
type
described
in
the
operating
instructions
or
as
marked
on
the
product.
9.
10.
11.
12.
13.
14.
The
power-supply
cord
of
the
product
should
be
unplugged
from
the
outlet
when
left
unused
for
a
long
period
of
time.
Do not tread on the power-supply cord.
Do
not
pull
the
cord
but
hold
the
plug
when
unplugging.
When
setting
up
with
any
other
instruments,
the
procedure
should
be
followed
in
accordance
with
instruction
manual.
Care
should
be
taken
so
that
objects
do
not
fall
and
liquids
are
not
spilled
into
the
enclosure
through
openings.
The
product
should
be
serviced
by
qualified
service
per-
sonnel
when:
A. The power-supply cord or the plug has been damaged;
or
Objects have fallen, or liquid has been spilled into the
product; or
The product has been exposed to rain; or
The product does not appear to operate normally or
exhibits a marked change in performance; or
The product has been dropped, or the enclosure dam-
aged.
m oo 9
. Do not attempt to service the product beyond that described
in the user-maintenance instructions. All other servicing
should be referred to qualified service personnel.
SAVE THESE INSTRUCTIONS
WARNING:
For the U.K.
THIS APPARATUS MUST BE EARTHED
IMPORTANT:
THE
WIRES
IN
THIS
MAINS
LEAD
ARE
COLOURED
IN
ACCORDANCE
WITH
THE
FOLLOWING
CODE.
GREEN-AND-YELLOW:
EARTH,
BLUE:
NEUTRAL,
BROWN:
LIVE
As
the
colours
of
the
wires
in
the
mains
lead
of
this
apparatus
may
not
correspond
with
the
coloured
markings
identifying
the terminals in your plug proceed as follows:
The
wire
which
is
coloured
GREEN-AND-YELLOW
must
be
connected
to
the
terminal
in
the
plug
which
is
marked
by
the
letter
E
or
by
the
safety
earth
symbol
CD
ог
coloured
GREEN
or
GREEN-AND-YELLOW.
The
wire
which
is
coloured
BLUE
must
be
connected
to
the
terminal
which
is
marked
with
the
letter
N
or
coloured
BLACK.
The
wire
which
is
coloured
BROWN
must
be
connected
to
the
terminal
which
is
marked
with
the
letter
L
or
coloured
RED.
The
product
which
is
equipped
with
a
THREE
WIRE
GROUNDING
TYPE
AC
PLUG
must
be
grounded.

CONTENTS
INTRODUCTION 3
FEATURES 3
PRECAUTIONS 4
Power Supply 4
Location 4
Care 4
Other 4
Copyright
4
HARD ББК HANDLING 5
Transportation 5
CONVENTIONS 5
System Configuration 5
Track Minutes 5
HOW THE DM-80 WORKS 6
DIGITAL RECORDING 6
DISK RECORDING 7
FRONT PANEL CONTROLS AND INDICATORS 8
AUDIO CONNECTIONS 9
DATA CONNECTIONS 10
INSTALLATION 11
PLACEMENT 11
Location | 11
Power Su 11
НООКОР iid 11
Before Making Connections 11
Connecting the DM-80-R Remote 12
Connecting the DM-80-F Fader Unit 12
Connecting Roland Track Manager Software 13
Using More Than One DM-80 Unit 14
Connecting External Disk Drives 15
Connecting Audio 15
Connecting SMPTE 15
Connecting Video Sync 16
Connecting MIDI 16
POWER ON SEQUENCE Ё 17
Power Up 17
Power Down 17
SCSI CONFIGURATION 18
Record and Playback 18
Tape Backu 18
ABOUT DISK GROUPS 19
Disk Groupings 20
Disk Formatting 20
Before Making SCSI Connections 20
SCSI DEVICE NUMBERS 21
Changing Device Numbers 21
TERMINA ION 21
ROLAND DM-80-4 / DM-80-8 e OWNER'S MANUAL 1

DISK
DRIVE
SPECIFICATIONS
22
Hard Disk Drives 22
Optical Drives 22
Tape Backup 22
UPGRADES AND SERVICE 23
SYSTEM SOFTWARE 23
EIGHT TRACK UPGRADE (DM-80-E) 23
IF THE DM-80 DOESN'T FUNCTION 23
RETURNING FOR SERVICE 24
MIXER
SECTION
BLOCK
DIAGRAM
25
MIDI
IMPLEMENTATION
26
SPECIFICATIONS
29
Analog I/O 29
Digital //O 29
General 29
Included Items 31
Options 31
INDEX
32
2 ROLAND DM-80-4 / DM-80-8 « OWNER'S MANUAL

INTRODUCTION
Thank you for purchasing the Roland DM-80 hard disk recorder. The
DM-80 is a multi-track disk recording workstation offering state of the
art performance and features, at a ground-breaking price. The basic
model (DM-80-4) can record and play back any combination of four
tracks simultaneously. The expanded DM-80-8 can record and play
back any combination of eight tracks simultaneously.
The DM-80 is a full-featured professional system including multiple
digital & analog I/Os, built-in disk drives, real time sample rate
conversion, and optical disk support.
Utilizing the resources of one of the leaders in digital sound
technology, the Roland DM-80 system brings this leading-edge
performance and reliability to a new low price point.
Recording time is limited to the amount of hard disk storage. One SCSI
bus and disk(s) is required per 4 tracks of audio. The recording format
is 16 bits linear; sample rates of 32, 44.1, and 48 kHz may be selected.
A 100 megabyte hard disk will allow roughly 18 monophonic minutes
of recording time at the CD rate of 44.1 kHz. A single recording or
project may be spread over multiple hard disks for even longer
recording times.
On playback, the DM-80 uses a trick borrowed from MIDI sequencers
and drum machines, where any one recorded section may be re-used
any number of times. A re-used section may have different start, stop,
fade in, and fade out times than the original use of the section. Also,
when a track is silent, no disk memory is used. Therefore, the total
playback time may be much longer than the total recorded time.
FEATURES
16-bit multi-track hard disk recording.
Record and play back any combination of four tracks simultaneously
(DM-80-4).
Expansion to eight track capability (DM-80-8). One SCSI bus and disk
per 4 tracks of audio.
16 bit linear recording format; sample rates of 32, 44.1, and 48 kHz
available.
Each 100 megabyte hard disk allows approximately 18 track minutes of
recording time at 44.1 kHz.
Recordings can be spread over multiple disks for longer recording
times.
а
ROLAND DM-80-4 / DM-80-8 • OWNER'S MANUAL 3

PRECAUTIONS
POWER SUPPLY
LOCATION
CARE
OTHER
COPYRIGHT
Be sure to use only the correct AC voltage. Do not connect the DM-80 to
the same circuit as devices which produce electrical noise (motors, lighting
dimmers, etc.) or devices which consume large amounts of power (heaters,
air conditioners, etc.)
Avoid damaging the power cord; do not step on it or place heavy objects on it.
For best performance from the DM-80's hard disk be sure to install the DM-
80 rack mount unit in a solid, level location, in an area free from excess
vibration or movement.
‘Operating the DM-80 near devices containing large power transformers
(e.g. power amplifiers) may induce hum.
If the room suddenly changes temperature, or if the DM-80 is brought from a
cold location into a warm room, condensation may form on the hard disk or
other components, which can cause damage. In this situation, wait for one hour
or more for the DM-80 to adjust to the new temperature before operating.
Do not subject the unit to temperature extremes (e.g. direct sunlight in an
enclosed vehicle). Avoid storing or using the unit in dusty or humid areas,
or areas that are subject to high vibration levels.
This unit may interfere with radio and television reception. Do not use this
unit in the vicinity of such receivers.
For everyday cleaning, wipe the unit with a soft dry cloth, or one that as
been slightly dampened with water. To remove stubborn dirt use a mild
neutral detergent. Afterwards be sure to wipe the unit thoroughly with a
soft, dry cloth.
Never use benzene, thinner, alcohol or solvents of any kind to avoid the
risk of discoloration or deformation.
Do not subject the DM-80 to strong shocks.
Do not press hard on the display or allow it to be hit.
The DM-80 may produce some heat when operating normally.
Always turn off the power to all equipment before making connections
with other devices.
Do not allow objects or liquids of any kind to penetrate the unit. In the
event of such an occurrence, discontinue use immediately. Contact
qualified service personnel as soon as possible.
Should a malfunction occur (or if you suspect there is a problem)
discontinue use immediately. Contact qualified personnel immediately.
Copyright ©1991 by ROLAND CORPORATION. All rights reserved. No
part of this publication may be reproduced in any form without the
permission of ROLAND CORPORATION.
Apple and Macintosh are registered trademarks of Apple Computer, Inc., U.S.A.
4 ROLAND DM-80-4 / DM-80-8 * OWNER'S MANUAL

When recording from Compact Discs or other sources, please respect
copyright laws. Refrain from copying and/or distributing copyrighted
material in any way, without the approval of the copyright holder.
A hard disk is a very delicate storage device. Do not subject it to shock
or vibration of any kind. Be especially careful not to move or bump
the unit while the power is on.
Shut down the DM-80 by using the Shut Down command before
turning off the power. After shutting down the unit, wait until the drive
has stopped rotating, about 30 seconds, before moving the unit.
It will take several minutes for the hard disk to “boot up” after the
power is turned on.
Never turn off the power while the hard disk is being accessed (while
any of the hard disk indicators are lit).
if the cooling fan is obstructed, overheating may cause data to be lost
or other malfunctions to occur.
When handling external hard disks, etc., refer to the manual for each device.
Roland cannot be responsible for any data lost while using the DM-80.
It is strongly suggested that you frequently make backup copies of your
hard disk data.
TRANSPORTATION
Always
pack
the
DM-80
in
its
shipping
box
or
shock-mount
rack
case.
Make
sure
the
drives
have stopped
rotating
before
moving
the
unit.
Since
disk
drives
are
quite
sensitive
to
vibration,
take great precautions
to
protect
the
unit
from
shock and
other
vibration.
CONVENTIONS
SYSTEM
CONFIGURATION
_
The
DM-80
is
available
in
two
versions:
the
DM-80-4
with
four
tracks
and a single 100MB hard disk drive; and the DM-80-8 with eight tracks
and two 100MB hard disk drives.
TRACK MINUTES Any mention of recording time refers to track minutes. Track minutes is
the total number of minutes available for recording on one track. 10
track minutes means 10 minutes of mono recording, 5 minutes of
stereo recording or 2.5 minutes of four track recording. Remember that
recording time is utilized differently in a disk system compared to tape,
resulting quite often in substantially longer actual project lengths.
BANNER
n
nm
ROLAND DM-80-4 / DM-80-8 • OWNER'S MANUAL 5

HOW THE DM-80 WORKS
The DM-80 is possible because of a series of technological
advancements. The most important of these are Digital Recording and
Disk Recording.
DIGITAL RECORDING
Digital recording, popularized by the advent of the Compact Disc,
records sound by storing a series of numbers – a series of digital
snapshots. These snapshots are then played back in series, much a like
a motion picture. The number of snapshots per second is.called the
sampling rate. In a CD the sampling rate is 44.1 kHz, which means
there are 44100 sonic snapshots every second. A DAT recorder has
rates of 48 kHz, 44.1 kHz and 32 kHz. The DM-80 can record and
playback at these same rates. The higher the rate, the higher the
frequency response.
l a- Sound Wave
0.50 1.00 1.50 1.88 2.13 225 225 2.13 1.88 1.50 1.00 0.50
6 ROLAND DM-80-4 / DM-80-8 * OWNER'S MANUAL

DISK RECORDING
Disk recording means storing digital recordings on a disk rather than a
tape. Why is this important? Because it makes possible random
access. Random access enables your recording to be played in any.
order you like. This means any note, measure, background vocal, or
even the entire project can be played back instantly, without having to
rewind and fast forward a tape. This also means any recording can be
played anywhere within the song you like, just like a MIDI sequencer —
except here we are working with complete digital recordings. The
possibilities are quite profound and we encourage you to experiment
and “push the envelope” of musical creativity.
LINEAR TAPE ACCESS:
Another thing to be considered is the issue of the data itself. If over 44
thousand samples per second sounds like a lot of data, you're right. In
fact ten seconds of digital audio represents about the same amount of
data as the manual you are holding in your hands right now. So we are
talking about extremely large amounts of data moving in and out of the
DM-80 at very high speeds.
What makes the DM-80 feasible is a big, fast disk drive. Floppy disk?
Way too slow, and even if it was fast enough, you'd fill it up after
recording 10 seconds. Fortunately, the kind of big, fast disk drives
needed for disk recording are now easily available. The DM-80-4 has
a 100MB drive built-in, and the DM-80-8 has two 100MB drives.
External disk drives can also be used.
aene
MM
M—
M
————ÀÁ
M
M
ROLAND DM-80-4 / DM-80-8 • OWNER'S MANUAL 7

FRONT PANEL CONTROLS AND INDICATORS
SELECTED INDICATOR
This indicator lights when
control signals are received
from the Remote, Fader, or
Track Manager software, via
the DM Buss .
HARD DISK INDICATORS
These indicator light to
show disk activity.
ШЕ sangre
STATUS INDICATORS
These indicators show the
status of the eight tracks:
Play, Mute, or Record.
CLIP INDICATORS
These LEDs indicate that a
track or master level has
exceeded the digital
maximum (008).
Roland МИ-ЕЗСЈ мал ma mse mache
ня BR м seats OR MEE
*» Boo Bo » om
СП NR INT
НЕ
ожо
йты.
Baruna.
ТУ METER, DISPLAY SAMPLING RATE ,,BOWER SWITCH
e isplay on the front pane is switch turns on the
shows input and output levels for These ndi INDICATORS system. The initializin
each of the eight inputs and track current sample так and process takes severa
outputs, plus the stereo outputs of sampling Chock Source minutes.
the internal mixer. ping 3 E
The levels shown are either
Pre-Fader or Post-Fader, selected by
the corresponding display on the
Remote or Track Manager software.

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INSTALLATION
PLACEMENT
LOCATION
POWER SUPPLY
HOOKUP
BEFORE MAKING
CONNECTIONS
For best performance from the DM-80's hard disk be sure to install the
DM-80 rack mount unit in a solid, level location, in an area free from
excess vibration or movement.
Operating the DM-80 near devices containing large power transformers
(e.g. power amplifiers) may induce hum.
Note: If the room suddenly changes temperature, or if the DM-80 is brought from a cold location
into a warm room, condensation may form on the hard disk or other components, which can cause
damage. In this situation, wait for one hour or more for the DM-80 to adjust to the new tempera-
ture before operating.
Be sure to use only the correct AC voltage. The DM-80 power supply is
designed for use in the country of purchase. If you plan to use the DM-
80 in another country, a power converter or other accessories may be
required. Please contact a Roland service center for additional
information.
Do not connect the DM-80 to the same circuit as devices which
produce electrical noise (motors, lighting dimmers, etc.) or devices
which consume large amounts of power (heaters, air conditioners, etc.)
Use the cables packed with the DM-80-4/8 and the DM-80-F. Use of
other cables may result in damage to the units.
When making connections, be sure the DM-80-4/8 is powered off. Do
not apply power until after all connections have been made. If not, the
DM-80 system will not function.
Never disconnect any DM BUSS cable while operating the DM-80
system. If a DM BUSS cable is disconnected and then re-connected, the
system will cease functioning. You will need to power off the unit
before it can be restarted. If this occurs, all unsaved data will be lost.
The above conditions also apply to a system being controlled by Track
Manager software. Never disconnect any cable between the computer and
DM-80 system—whether DM BUSS, MIDI or RS-422—or the system may
cease functioning. You will need to power off the computer and DM-80
and restart. If this occurs, all unsaved data will be lost.
ROLAND DM-80-4 / DM-80-8 • OWNER'S MANUAL 11

CONNECTING THE
DM-80-R REMOTE
Connect the cable included with the DM-80-4/8 into the jack labelled
DM BUSS IN. Connect the other end of the cable to the jack labeled
DM BUSS OUT on the rear panel of the remote.
CONNECTING THE
DM-80-F FADER
UNIT
Connect the cable included with the DM-80-4/8 to the jack labeled
DM BUSS IN. Connect the other end of the cable to the jack labeled
DM BUSS OUT on the rear panel of the fader unit. Connect the DM-
80-R or Track Manager software to the DM-80-F's DM BUSS IN
Connector, using the cable supplied with the DM-80-F.
OO
(db
1 2 ROLAND DM-80-4 / DM-80-8 • OWNER'S MANUAL

CONNECTING
ROLAND TRACK
MANAGER
SOFTWARE Track Manager duplicates the functions of the DM-80-R on the Apple
Macintosh screen. Either the Track Manager software or the DM-80-R
can be used — but not both simultaneously.
Using the IB-1 interface box (option) and cables supplied with the DM-
80-4/8 and fader unit if you are using one , connect the DM-80 system
as shown below.
If you are planning to utilize a single Macintosh for both DM-80
control and music data such as created by a MIDI sequencer, we
recommend using two MIDI interfaces—one for the DM-80 and the
other for your other MIDI instruments.
Note: Be careful not to confuse the DM BUSS and MIDI ports. The MIDI ports are used only for actual
MIDI data (MIDI dock and time code, notes, controllers, etc.)
ROLAND DM-80-4 / DM-80-8 * OWNER'S MANUAL 13

USING MORE THAN
ONE DM-80 UNIT
Up to four DM-80 rack units can be operated simultaneously as one
unit with up to 32 tracks, controlled from an Apple Macintosh
computer running Track Manager software. A multi-port MIDI
interface, such as the MIDI time Piece from Mark of the Unicorn is
recommended.
Multiple DM-80-F Fader Units can also be used. Use the diagram
below as a connection reference.
CASCADING
AUDIO
—
You
can
use
the
Aux
inputs
to
cascade
the
audio
from
each
unit
into
a
final
stereo
output. Connect
as
shown
below
and
check
the
Track
Manager
Owner's
Manual section titled
“Cascading
Audio”
for the
setup
procedure.
FOLLOW THE DIAGRAM BELOW WHEN
CONNECTING SEVERAL UNITS TOGETHER:
14 ROLAND DM-80-4 / DM-80-8 • OWNER'S MANUAL

CONNECTING
EXTERNAL DISK
DRIVES
CONNECTING
AUDIO
ANALOG AUDIO
DIGITAL AUDIO
CONNECTING
SMPTE
You can expand recording time beyond the DM-80's internal capacity
of 18 track minutes @ 44.1 kHz (double for a DM-80-8) by connecting
additional disk drives.
With a DM-80-4, connect drives to the SCSI A port. With an eight track
DM-80-8, connect drives in pairs; one to SCSI A and the other to SCSI В.
Fixed and optical disk drives can be used. Please check the SCSI
CONFIGURATION section, starting on Page 18.
There are a number of audio inputs and outputs in the DM-80. The
proper connections depend on your particular application.
Any of the inputs (analog or digital) can be routed to any of the tracks
for recording, or to the mixer's auxiliary inputs for combining in the
master mix.
The DM-80 has four inputs and four outputs (eight each for the DM-80-
8). In addition, the output of the mixer appears at the Mix Output jacks.
All analog audio connections are balanced at +4dBm using 3-
conductor phone jacks. These jacks also accept unbalanced
connections. When you use them in an unbalanced configuration, the
output level becomes -2dBm.
Note: The input levels can be changed to -10dBm Бу an Authorized Roland Service Center. Please
contact your dealer or Roland for the nearest service center.
The DM-80 features XLR as well as Coaxial inputs and outputs. The
DM-80-4 has one input pair (DIGITAL A) and the DM-80-8 has two
pairs (DIGITAL A&B). Coaxial or XLR input connectors can be selected
using the Select Switch for each input on the rear panel, as shown in
the AUDIO CONNECTIONS diagram on page 9. The mixer output
appears at either the XLR or Coaxial connector, as selected by the
Select Switch.
Note: To record from the DIGITAL A input, remember to select DIGITAL A as the Sampling Clock
Source in the System menu.
The DM-80 reads and generates SMPTE Linear Time Code. To slave the
DM-80 to SMPTE, connect a SMPTE code source to the SMPTE IN, and
select SMPTE as the Timing Base in the System menu.
Note: Be sure to also select the proper frame rate and format.
For more information, check the DATA CONNECTIONS diagram, page
10, and also the sections about SMPTE in the DM-80-R Remote and
Track Manager user manuals.
ROLAND DM-80-4 / DM-80-8 • OWNER'S MANUAL 15

CONNECTING
VIDEO
SYNC
Video
Sync
can
be
used
to
control
the
DM-80's
Sampling
Rate
Clock.
Connect
an
NTSC
or
PAL
format
video
signal
to
the
Video
Sync
input
and
set
the
Sampling
Clock
Source
to
VIDEO
SYNC
in
the
System
menu.
CONNECTING
MIDI
мо!
serves
several
important
functions.
MIDI
TIME
CODE
MIDI
Time
Code
(MTC)
can
be
patched
into
the
DM-80
in
two
ways:
1) Via the MIDI IN port, if you are using an application that generates
MTC, such as Mark Of The Unicorn's Performer or Opcode Vision
sequencing software.
2) If you are using Track Manager as the MIDI Time Code master, you
can send MTC via the DM BUSS. This means you can send control
information and MTC sync from one Macintosh port, leaving the other
port free for other tasks.
MIDI
CLOCKS
The
DM-80
generates
MIDI
Beat
Clocks
based
on
the
Tempo
Map,
which
defines
the
relationship
between
Minutes:Seconds:Frames
and
Measures:Beats.
MIDI
Clocks
are
output
from
the
MIDI
OUT
jack.
NOTE TRIGGERS The DM-80's Trigger Mode provides a method of using MIDI note
information to trigger recorded phrases. Trigger notes are defined in the
Trigger Mode screen. Notes must be received on the MIDI Control
Channel, set in the System Menu.
RECORD
TRIGGER
—
MIDI
Continuous
Control
Change
#4
can
be
used
for
punching
in
or
out
of
Record
mode.
Controller
#4
can
be
selected
as
the
record
trigger
in
the
Record
Common
screen.
The
control
change
must
be
received
on
the
MIDI
Control
Channel,
set
in
the
System
Menu.
MIDI METRONOME MIDI notes can be used as a metronome. The notes are defined in the
Metronome window (in record parameters). Notes are transmitted to the
MIDI OUT jack, on the MIDI Control Channel set in the System Menu.
MIDI ТАР — MIDI notes can be used to enter the tempo in Tap Tempo mode. MIDI
notes are defined in the Tap Teach Screen. Notes must be received on
the MIDI Control Channel, set in the System Menu.
MIDI Clocks can also be used to calibrate the Tempo Map. The MIDI
Clocks option is selected in the Tap Teach screen.
For more information about MIDI, please see the DM-80-R Remote or
Track Manager user manuals.
16 ROLAND DM-80-4 / DM-80-8 « OWNER'S MANUAL

POWER UP
POWER DOWN
Interconnected computer devices need to be turned on and off in a
particular order. Please observe the following suggestions.
Before turning on the DM-80, be sure to confirm all DM BUSS, SCSI,
Audio and MIDI connections. Reduce the audio monitor level.
le Power on the terminated SCSI devices.
2. Post on the other, non-terminated SCSI devices. Wait for all drives to come up to
speed.
3* Power on the ОМ-80.
4* Power on the computer, if you are using Track Manager software.
5 • Power on any MIDI and SMPTE devices.
6* Finally, turn on any other audio equipment.
Before powering down the DM-80, be sure to save the current Project,
and reduce the audio monitor level.
le Execute the SHUT DOWN command from the Remote Unit or Track Manager. № will take about 30
seconds for all drives to stop spinning. Check that heads of all external drives have been parked
(in other words, not spinning) and eject any removable disks or tapes.
2* Power off audio devices.
3% Power off the DM-80
ROLAND DM-80-4 / DM-80-8 • OWNER'S MANUAL 17.

SCSI CONFIGURATION
SCSI stands for Small Computer System Interface. SCS! is a computer
industry-standard interface, defined by the American National
Standards Institute (ANSI). The DM-80 can be connected to a wide
number of devices for recording or high-speed data transfer.
There are several SCSI ports, used for different purposes:
RECORD AND
PLAYBACK — Use the SCSI A connector to connect additional devices for recording
and playback. If you are using a DM-80-8, connect additional drives in
pairs; one to SCSI A and the second to SCSI B.
TAPE BACKUP Use the DM-80's SCSI EXT connector for SCSl-based tape backup devices.