Roland GR-77B User manual

2 nRoland
ШІН SASS GUITAR SYNTHESIZER
Gr-778
Owner's Manual

Ш PANEL DESCRIPTION
«Rear Paneb
G POWER ` Power Switch
!
9
r——
69MEMORY
CARTRIDGE
`
Memory
Cartridge
Holder
QGUITAR
INPUT
`
Guitar
Input
Connector
PROGRAMMER
:
Programmer
Connector
Өмір
OUT
`
MIDI
OUT
Connector
@MEMORY
PROTECT:
Memory
Protect
Switch
ӨРІТСН
`
Pitch
Control
Jack
ФУСЕ
:
VCF
Control
Jack
ET
die Roland SE.
Te Eë Н,
T 5 >
ЕТ ты. : Balanced Output Connectors
@LEVEL
`
Level
Selector
Switch
OUTPUT
`
Output
Jacks
@GUITAR
OUT
:
Guitar
Output
Jack
@AC INLET : Inlet
«Front Panel
@ Write Switch
@ Copy Switches
•
——sn
—
m
n
À
Ноій
Pedal
Switches
ГТ
—
——-
à)
Tune
Switch
ch
®
String
Selector
Switches
Ф String Mode Switches
(p Edit Switch
® Pitch Bend Switches
ФФ Displays
ШІ
|
| E e Number Pedals
(1 to 8)
*BBANK
:
Bank
Pedal
"САРТ
:
Cartridge
Pedal
WHOLO : Hold Pedal

IMPORTANT NOTES
Power Supply
The appropriate power supply for this unit is shown
onits name plate. Please make sure that the line vol-
tage in your country meets that.
Please do not use the same socket used for any
noise generating device (such as motor, variable
lighting system).
This unit might not work properly if turned on imme-
diately after turned off. If this happens, simply turn it
off and turn.it on again a few seconds later.
Before setting up the GR-778 with an external
amplifier or the Bass Guitar Controller, turn both of
them off.
This unit might get hot while operating, but there is
no need to worry about it.
Cleaning
* Use a soft cloth and clean only with a mild detergent.
e Do not use solvents such as paint thinner.
Location
* Operating the СА-778 near a neon or fluorescent
lamp may cause noise interference. If so, change
the angle or position of the GR-77B.
e Avoid using the GR-77B in excessive heat or humid-
ity or where it may be affected by direct sunlight ог ·
dust.
Repairing
* Savethe necessary data into a cartridge before hav-
ing the GR-77B repaired, in case it is accidentally
erased.
—
with поп-сегићед аг non-verified eq
RADIO AND TELEVISION INTERFERENCE
"Warning
-
This
equipment
has
been
verified
to
comply
with
the
knits
for
a
Class
8
computing
device,
pursuant
to
Subpart
J.
о!
Part
15,
of
ЕСС
Rules
Operation
pement 15 likely to resuit in interference to radio and TV reception.
The
equipment
described
іп
this
manual
generates
and
uses
radio-Irequency
energy
If
itis
not
instulled
and
used
property.
that
is,
in
strict
accordance
with
out
instructions,
it
may
cause
interference
with
radio
and
television
reception
This
equipment
has
been
tested
and
found
to
comply
with
the
limits
for
a
Class
B
computing
device
in
accordance
with
the
specifications
in
Subpart
J.
of
Part
15.
of
FCC
Rules.
These
rules
are
designed
to
provide
reasonable
protection
against
such
a
interference
in
a
residential
installation
However,
there
is
no
guarantee
that
the
interference
10
radio
or
television
reception,
which
can
be
determined
by
turning
the
equipment
0065
cause
interference
to
radio
or
television
reception,
which
can
be
determined
by
turning
the
equipment
on
and
aH,
the
user
is
encouraged
to
try
10
correct
the
interference
by
the
following
measure
Е
Disconnect
other
devices
and
their
input
output
cables
опе
at
3
time
И
the
interference
stops.
«t
їз
caused
by
either
the
other
device
ur
its
!
O
саше
These
devices
usually
require
Roland
designated
shielded
í
О
cables.
For
Rotang
devices,
you
can
obtain
the
proper
shielded
canie
from
your
dealer.
Far
non
Roland
devices.
contact
the
manufacturer
ог
dealer
for
assistance
if
your
equipment
does
cause
interference
to
radio
or
television
reception.
you
can
try
to
correct
the
interference
by
using
one
or
more
al
the
following
measures
H
Turn the TV or radio antenna unti the interferences stops
Move the equipment to one side ог the other of the TV or radio
Move the equipment larther away tram the TV or radio
Plug
the
equipment
into
an
outtet
that
is
ол
a
different
сисин
than
ine
TV
or
ramo
(That
is,
make
certain
the
equipment
ani
the
radia
ог
television
set
are
on
Circuits controlled by differant circuit needkers or fuses.)
Consider installing a rooftop television antenna wath coaxial cable lead in between the antenna ana TV
M
necessary,
you
should
consult
your
dealer
Or
an
experienced
radio
television
technician
far
additional
suggestions
You
m.
Брок! prepared by the Federal Commumcations Commission
“How to ideniify and Resolve Вано TY imterterence Proniems
This booklet is available from the US Government Prating Ole. Washington OC. 20:
as hid neptal the (оймен
2. Stock Мо 204 000 00345 4

CONNECTIONS
*
Before
making
or
breaking
connection,
be
sure
to
turn
ail
the
units
off.
* Setup with the Guitar Controiler
““НІЕЕНоіапа ~~ =
:
А о[ ______е if |
r TY
LM
1
C-24G
1. Guitar Input Connector Ө y
Connect
the
Bass
Guitar
Controller
here
by
using
the
supplied
cable
C-24G.
€ Using supplied cable C-24G
Push the side buttons of the socket, and without releas-
ing
them
insert
the
socket
into
the
connector.
Then
release
the
buttons,
and
the
socket
will
be
automaticaily
locked.
To
disconnect
the
socket,
press
the
side
but-
tons down and pull it out.
*
The
supplied
cable
C-24G
can
be
used
to
connect
any G-series Guitar Controller. Ө Guitar Input Connector
(C

* Setup with amplifiers, mixer etc.
To Monitor
2. Output Jacks ©
These jacks are used to connect amplifiers. When these
are the only output jacks used, mixed sound of direct
and synthesizer will be obtained. To fully benefit the
advantages of the GR-77B, use keyboard amplifiers and
Speakers, PA, or audio equipment. If two amplifiers are
used (stereo), chorus effect will sound more effective.
3. Level Selector Switch Ф
With this switch, select an appropriate output level
depending on the type of the amplifier you use. The
knack is to select the position that allows undistorted
sound of desirable level with the amplifier's volume set
to 5 to 7.
4. Guitar Output Jack @
This jack is provided to connect a bass amplifier.
Through this jack, only direct bass sound is sent ош.
Also, a preamplifier is built in here, therefore, good
result can be expected when an effect device or foot
volume is used. If both this jack and the Output Jack
are used at the same time, the pure synthesizer sound
is output through the Output Jack Ф
PA, Amplifier, etc. PA, Mixer, etc.
5. Balanced Output Connectors ®
These
are
used
for
setting
up
the
GR-778
with
the
bal-
anced
type
mixer
or
effect
device.
The
signal
sent
out
through
these
connectors
are
the
same
as
the
output
jacks
Ф,
but
the
maximum
output
level
is
OdB
regard-
less
of
the
position
of
the
Level
Selector
Switch
Ф.
If
setting
up
in
monaural,
be
sure
to
mix
the
signals
of
both
channels.
Also,
the
output
from
this
connectoris
transformless,
so
to
convert
it
into
unbalanced
output,
keep
the
2nd
pin
open.
©
©
€ Balanced Output Connector
5. Programmer Connector ©
Connect
the
programmer
PG-800
loptional)
here
by
using the 6P DIN Cord supplied with the PG-800
7. MIDI OUT Connector Ө
This
is
to
connect
а
MIDI
sound
module.
Use
the
оочопа! MIDI Sync Cable MSC-15, 25 or 50
6

e
8. Pitch Control Jack Ө and VCF Control Jack ©
By connecting the Foot Volume FV-200 (8055), you can
control the pitch and VCF Cutoff by depressing the
pedal.
" Use the Output Jack of the FV-200.
* Setthe Minimum Volume of the FV-200 to zero.
* Remove the spring holder from the FV-200. (Refer to
the operation manual of the FV-200 to see how to
remove it).
* When you are not using the FV-200, set the pedal to
its highest position.
9. Memory Cartridge Hoider €
Connect the supplied Memory Cartridge M-16C.
Set the Protect Switch on the cartridge to the ON posi-
tion, and insert the cartridge securely into the Memory
Cartridge Holder Ф of the GR-77B with the Protect
Switch of the cartridge facing upward. (See the picture
shown below.)
Connecting the Memory Cartridge
Connecting the Volume Pedal
7 ө
|
PEDAL
PITCH VCF
00000
Ғу-200
COUTFUT)
A A
vv
т a= алад Әй
ir
1
T
|
|
Protect Switch
~

PROBLEMS
CAUSED
BY
YOUR
IMPROPER
PLAYING
MANNER
The
GR-77B
digitally
processes
the
vibration
of
the
strings,
producing
digital
signal
that
controls
each
sec-
tion
of
the
synthesizer.
In
other
words,even
the
string
vibration
inaudible
in
usual
bass
guitar
performance
is
bound to be processed.
Therefore, you may be annoyed by unexpected reaction
of the bass guitar controller when playing it. The follow-
ing are possible symptoms and how to resolve them.
a. Sound Delay
The GR-778 reads the waveform of the string vibration,
and then detects the pitch by its computer. The lower
tone (slower vibration) needs more time for pitch detec-
tion, resulting in sound delay. The open 4th string (E)
requires at least 25ms (0.025 seconds). The sound
delay is also caused by a certain playing manner,
because the GR-778 is designed not to output sound
until the string vibration has become stable, to obtain
accurate pitch.
b. Sound cannot be muted
The 3rd and 4th strings are likely to keep vibrating even
when muted. So, when you play tremoio or repeat an
Open chord or muteless stroke on these strings, the
created
sounds
may
not
be
muted.
€.
Irrelevant
sound
is
heard
The
GR-77B
processes
even
the
string
vibration
irrele-
vant
for
deciding
pitch.
Therefore,you
need
a
special
care
for
picking.
d. No sound is heard
When
the
vibrating
time
of
string
is
too
short
or
the
pitch
is
ambiguous,
or
you
have
not
picked
or
touched
the
str-
ing
hard
enough,
pitch
detection
is
difficult.
Watch
that
your
picking
is
hard
enough.
*
Harmonics
playing
Avoid
playing
in
harmonics
manner,
if
possible.
The
problems
are
often
caused
by
feeble
string
vibration
in
harmonics manner

e
e
[4] OPERATION
1. GUITAR CONTROLLER
(2) Touch Plates
1) Balance Knob (3)
With
this
knob
turned
fully
counterclockwise,
only
direct
bass
sound
is
obtained.
As
you
rotate
it
clockwise,
syn-
thesizer
sound
will
be
increased
and
at
its
fully
clock-
wise
position,
only
synthesizer
sound
will
be
heard.
2) Master Volume (B)
This knob sets the overall volume.
3) Mode Switch ©
AtIposition Only direct bass sound is
obtained, and the Balance Knob (8)
does not work.
А апаш Both direct and synthesizer
position sounds are available.
4) Vibrato Knob @ and Touch Plats (€
By using these knobs, you can add vibrato effect.
1. When using the G-33 or G-88
Slightly turn the Vibrato Knob (S) and touch the Touch
Plate А while holding the strings down. To stop vibrato,
touch the Touch Plate 8 and .mmediately release it
© Mode Switch
@ Vibrato Knob
@ Edit Knob
( Master Volume
(£ Cutoff Frequency Knob
(2) Balance Knob
2.
When
using
the
G-77
Slightly
turn
the
Vibrato
Knob
@
and
touch
the
Touch
Plate
while
holding
the
strings
down.
To
stop
vibrato,
release
the
Touch
Plate.
If
the
Vibrato
Knob
(9)
is
set
to
zero,
no
vibrato
is
obtained
at
all.
That
is,
you
are
not
annoyed
by
unex-
pected
vibrato
effect
caused
by
touching
the
Touch
Plate
accidentally.
The
rate,delay
time
and
depth
of
the
vibrato
effect
change
according
to
its
set
level
in
writing.
5)
Cutoff
Frequency
Knob
(f)
6)
Edit
Knob
@
(Resonance
Knob
in
other
С
series)
These
knobs
work
exclusively
in
Edit
mode.
The
Cutoff
Frequency
Knob
@
is
provided
specif-
ically
for
controlling
the
VCF
Cutoff
Frequency.
The
Edit
(Resonance!
Knob
(9)
is
used
to
control
par-
ameters
other
than
the
cutoff
frequency
r to the owner's manual of
h bass guitar con-
tailer
for
the
other
contro!
knots

2. PLAY, EDIT & WRITE MODES
These Programs JIT | | E: ]
can be rewritten.
ETEA TIJ
4 |
— — eR
5
These Programs E
cannot be
"E FETA EIE TIE
Ж is a Program of Bank 3,
Patch Number 5.(3-5)
Set up 68-778 with amplifier and speaker, etc., and
power it up „and it will be ready to play. (= PLAY Mode)
There are 64 different tone colors preprogrammed (8
bank X 8 patch numbers) as shown left. And you can
recall any of those patches and edit it as you like.
(—EDIT Mode) This editing operation, however, dose
not autornatically rewrite the existing patch program.
if you wish to write the edited program, an appropriate
writing operation is required. Writing a new patch pro-
gram, however, replaces the one currently written. (=
WRITE Mode)
The 32 patches programmed in the bank 1 to 4 can be
rewritten, but the bank 5 to 8 are ail fixed programs.