Yamaha GW50 User manual

FCC INFORMATION (U.S.A.)
1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!
This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements. Modifications not expressly approved
by Yamaha may void your authority, granted by the FCC, to use the product.
2. IMPORTANT: When connecting this product to accessories and/or another product use only high quality shielded cables. Cable/s supplied with this
product MUST be used. Follow all installation instructions. Failure to follow instructions could void your FCC authorization to use this product in the
USA.
3. NOTE: This product has been tested and found to comply with the requirements listed in FCC Regulations, Part 15 for Class ”B” digital devices.
Compliance with these requirements provides a reasonable level of assurance that your use of this product in a residential environment will not
result in harmful interference with other electronic devices. This equipment generates/uses radio frequencies and, if not installed and used according
to the instructions found in the users manual, may cause interference harmful to the operation of other electronic devices. Compliance with FCC
regulations does not guarantee that interference will not occur in all installations. If this product is found to be the source of interference, which can
be determined by turning the unit ”OFF” and ”ON”, please try to eliminate the problem by using one of the following measures:
Relocate either this product or the device that is being affected by the interference.
Utilize power outlets that are on different branch (circuit breaker or fuse) circuits or install AC line filter/s.
In the case of radio or TV interference, relocate/reorient the antenna. If the antenna lead-in is 300 ohm ribbon lead, change the lead-in to co-axial type
cable.
If these corrective measures do not produce satisfactory results, please contact the local retailer authorized to distribute this type of product. If you
can not locate the appropriate retailer, please contact Yamaha Corporation of America, Electronic Service Division, 6600 Orangethorpe Ave, Buena
Park, CA 90620
The above statements apply ONLY to those products distributed by Yamaha Corporation of America or its subsidiaries.
* This applies only to products distributed by YAMAHA CORPORATION OF AMERICA.
Litiumbatteri!
Bör endast bytas av servicepersonal.
Explosionsfara vid felaktig hantering.
VA OITUS!
Lithiumparisto, äjähdysvaara.
Pariston saa vaihtaa ainoastaan alan
ammattimies.
ADVA SEL!
Lithiumbatteri!
Eksplosionsfare. Udskiftning må kun foretages
af en sagkyndig, – og som beskrevet i
servicemanualen.
CANADA
THIS DIGITAL APPA ATUS DOES NOT EXCEED THE “CLASS B” LIMITS FO ADIO
NOISE EMISSIONS F OM DIGITAL APPA ATUS SET OUT IN THE ADIO INTE FE -
ENCE EGULATION OF THE CANADIAN DEPA TMENT OF COMMUNICATIONS.
LE P ESENT APPA EIL NUME IQUE N’EMET PAS DE B UITS ADIOELECT IQUES
DEPASSANT LES LIMITES APPLICABLES AUX APPA EILS NUME IQUES DE LA “CLASSE
B” P ESC ITES DANS LE EGLEMENT SU LE B OUILLAGE ADIOELECT IQUE
EDICTE PA LE MINISTE E DES COMMUNICATIONS DU CANADA.
* This applies only to products distributed by YAMAHA CANADA MUSIC LTD.
* Ceci ne s’applique qu’aux produits distribués par Yamaha Canada Musique Ltée.

SPECIAL MESSAGE SECTION
92-BP
PLEASE KEEP THIS MANUAL
This product utilizes an external power supply (adapter). DO NOT
connect this product to any power supply or adapter other than one
described in the manual, on the name plate, or specifically recom-
mended by Yamaha.
WARNING: Do not place this product in a position where anyone
could walk on, trip over, or roll anything over power or connecting
cords of any kind. The use of an extension cord is not recom-
mended! If you must use an extension cord, the minimum wire size
for a 25’ cord (or 1 cm) is I8 AWG. NOTE: The smaller the AWG
number, the larger the current handling capacity. For longer exten-
sion cords, consult a local electrician.
This product should be used only with the components supplied, or
a cart, rack, or stand that is recommended by Yamaha. If a cart,
etc., is used, please observe all safety markings and instructions
that accompany the accessory product.
SPECIFICATIONS SUBJECT TO CHANGE: The information
contained in this manual is believed to be correct at the time of
printing. However, Yamaha reserves the right to change or modify
any of the specifications without notice or obligation to update
existing units.
Do not attempt to service this product beyond that described in the
user-maintenance instructions. All other servicing should be re-
ferred to qualified service personnel.
This product, either alone or in combination with an amplifier and
headphones or speaker/s, may be capable of producing sound levels
that could cause permanent hearing loss. DO NOT operate for long
periods of time at a high volume level or at a level that is uncom-
fortable. If you experience any hearing loss or ringing in the ears,
you should consult an audiologist. IMPORTANT: The louder the
sound, the shorter the time period before damage occurs.
Some Yamaha products may have benches and/or accessory mount-
ing fixtures that are either supplied with the product or as optional
accessories. Some of these items are designed to be dealer assem-
bled or installed. Please make sure that benches are stable and any
optional fixtures (where applicable) are well secured BEFORE
using. Benches supplied by Yamaha are designed for seating only.
No other uses are recommended.
NOTICE: Service charges incurred due to lack of knowledge relat-
ing to how a function or effect works (when the unit is operating as
designed) are not covered by the manufacturer’s warranty, and are
therefore the owner’s responsibility. Please study this manual care-
fully and consult your dealer before requesting service.
ENVIRONMENTAL ISSUES: Yamaha strives to produce prod-
ucts that are both user safe and environmentally friendly. We sin-
cerely believe that our products and the production methods used to
produce them, meet these goals. In keeping with both the letter and
the spirit of the law, we want you to be aware of the following:
Battery Notice: This product MAY contain a small non-recharge-
able battery which (if applicable) is soldered in place. The average
life span of this type of battery is approximately five years. When
replacement becomes necessary, contact a qualified service repre-
sentative to perform the replacement.
This product may also use “household” type batteries. Some of
these may be rechargeable. Make sure that the battery being
charged is a rechargeable type and that the charger is intended for
the battery being charged.
When installing batteries, do not mix old batteries with new, or
with batteries of a different type. Batteries MUST be installed cor-
rectly. Mismatches or incorrect installation may result in overheat-
ing and battery case rupture.
Warning: Do not attempt to disassemble, or incinerate any battery.
Keep all batteries away from children. Dispose of used batteries
promptly and as regulated by the laws in your area. Note: Check
with any retailer of household type batteries in your area for battery
disposal information.
Disposal Notice: Should this product become damaged beyond re-
pair, or for some reason its useful life is considered to be at an end,
please observe all local, state, and federal regulations that relate to
the disposal of products that contain lead, batteries, plastics, etc. If
your dealer is unable to assist you, please contact Yamaha directly.
NAME PLATE LOCATION: The graphic below indicates the lo-
cation of the name plate for this model. The model number, serial
number, power requirements, etc., are located on this plate. You
should record the model number, serial number, and the date of
purchase in the spaces provided below and retain this manual as a
permanent record of your purchase.
Model
Serial No.
Purchase Date

i
Congratulations and thank you for purchasing the Yamaha GW50 Guitar Performance Effector.
The GW50 combines high-quality multi effects for guitar (and other instruments as well) with a
sophisticated backing section that provides realistic automatic rhythmic accompaniment for you
to play along with. The dual functions — effects and backing — make the GW50 useful in a wide
range of applications, from live performance and studio use to home recording and individual
music practice.
Some of the advanced features of the GW50 include:
Effect Section
■Five basic effect blocks, featuring Compressor,
Distortion, Equalizer, Chorus and Reverb/
Delay, plus additional effect types within each
block, such as Overdrive, Wah, Amp Simulator,
Flanger, Phaser, Pitch Shifter, Tap Delay, and a
built-in Noise Gate.
■User memory for storing up to 50 user-created
effect programs, all instantly selectable from
the convenient Pedal Switches. (See pages 11,
25.)
■High-quality sound in all effects, plus added
sonic benefit of having all effects integrated
into one unit.
■Comprehensive parameter control over all
effects, yet exceptional ease-of-use — you can
adjust the main parameters of the effect blocks
just as you would on conventional pedal effects.
Backing Section
■A total of 248 automatic rhythm and accompa-
niment patterns, using realistic drum, bass and
other backing instrument sounds. (See page 32.)
The automatic accompaniment includes sophis-
ticated chord control, with 25 different chord
types available in all keys. (See pages 33-35.)
■Song record capability, for creating songs with
the rhythm/accompaniment patterns and chord
changes, as well as automating effect program
changes, effect bypass and other functions. (See
pages 36-38.)
■A special Root Select function (see page 78),
which lets you change the root note of the
backing chord by playing the note on your
guitar, and Triggered Run (see page 82), which
allows you to start a song or pattern just by
playing a note on your guitar.
Other Features
■Convenient Pedal Switch control over many
functions, including chord change, start/stop of
pattern/song playback, bypassing of effects, and
so on.
■Built-in tuner, allowing you to tune your instru-
ment without removing it from the signal chain.
(See page 39.)
■Various MIDI features for interfacing with a
wide range of other MIDI devices. (See pages
101-107.)

ii PRECAUTIONS
PRECAUTIONS
(This message appears only when the power is
turned on, and stays in the LCD until a panel
button is pressed.) When this happens, save all
original data to a MIDI data storage device (see
note below) or write down all necessary settings
to a piece of paper, then have the battery
replaced by qualified Yamaha service person-
nel as soon as possible. DO NOT ATTEMPT
TO REPLACE THE BACKUP BATTERY
YOURSELF!
IMPORTANT
BACKING UP DATA—We recommend that you
transfer all important data to a MIDI data re-
corder, such as the Yamaha MDF2 MIDI Data Filer
or another data storage device, for safe, long-
term storage. (For more information, refer to the
section on the MIDI Bulk Dump function, page
102.) Yamaha cannot be held responsible for data
loss caused by battery failure or improper
operation of the GW50.
■AVOID PHYSICAL SHOCKS
Although the GW50 has been constructed to
withstand the normal rigors of stage and studio
use for optimum sturdiness and reliability,
avoid subjecting it to strong physical shocks
(such as dropping or hitting it), since this may
damage the unit. Since the GW50 is a preci-
sion-made electronic device, also avoid apply-
ing excessive force to the various controls.
Also, avoid stepping on any part of the GW50
other than the Pedal Switches, since this may
damage or break the controls or glass of the
display.
PRECAUTIONS
■USE THE CORRECT POWER
SUPPLY
Power to the GW50 should be supplied only
from the appropriate Yamaha AC adaptor (the
included PA-3). Use of another adaptor may
cause serious damage to the unit. Also make
sure that the adaptor you have is appropriate for
the AC mains supply voltage in the area where
you intend to use the GW50. (The correct input
voltage is marked on the adaptor.)
■USE ONLY APPROPRIATE FOOT
CONTROLLERS AND
FOOTSWITCHES
Certain functions of the GW50 can be control-
led by the optional Yamaha FC7 Foot Con-
troller and the FC5 (or FC4) Footswitch. Use
of any other pedal or footswitch besides those
recommended here may result in erratic opera-
tion or may cause some other trouble in the foot
controller or footswitch itself.
■MEMORY BACKUP
The GW50 memorizes the following data, even
when the power is turned off: Memory effect
program data, Manual effect data (excepting
main parameter values), song data, and
general panel settings. The GW50 contains a
special long-life lithium battery that retains this
data in the internal RAM memory. The battery
should last for approximately five years from
the date of manufacture. When the backup
battery power becomes too low to maintain the
memory contents, a warning message appears
in the LCD:

PRECAUTIONS iii
PRECAUTIONS
■AVOID EXCESSIVE HEAT,
HUMIDITY, DUST AND VIBRATION
Keep the unit away from locations where it is
likely to be exposed to high temperatures (such
as direct sunlight) or humidity. Also avoid
locations which are subject to excessive dust
accumulation or vibration which could cause
mechanical damage.
■DO NOT OPEN THE CASE OR
ATTEMPT REPAIRS OR
MODIFICATIONS YOURSELF
This product contains no user-serviceable parts.
Refer all maintenance to qualified Yamaha
service personnel. Opening the case and/or
tampering in any way with the internal circuitry
will void the warranty.
■MAKE SURE POWER IS OFF
BEFORE MAKING OR REMOVING
CONNECTIONS
Always turn the power off prior to connecting
or disconnecting cables.
■HANDLE ALL CONNECTIONS
CAREFULLY
Always be careful to connect and disconnect all
cables and cords by gripping the connector
itself, not by pulling on the cord.
■CLEAN WITH A SOFT, DRY CLOTH
Never use solvents such as benzine or thinner to
clean the unit, since these will damage the
finish. Wipe clean with a soft, dry cloth. If
necessary, use a soft, clean cloth slightly mois-
tened with a diluted, mild detergent — making
sure to wipe the case off again with a dry cloth.
■ELECTRICAL INTERFERENCE
Since the GW50 contains digital circuitry, it
may cause interference and noise if placed too
close to TV sets, radios or similar equipment. If
such a problem occurs, move the GW50 further
away from the affected equipment.
■MIDI CABLES
When connecting the GW50 to other MIDI
equipment, be sure to use only high-quality
cables made especially for MIDI data transmis-
sion. Also avoid cables longer than 15 meters,
since long cables can result in data errors.

iv TABLE OF CONTENTS
TABLE OF CONTENTS
PRECAUTIONS.................................................... ii
HOW TO USE THIS MANUAL
(READ THIS FIRST!!) ......................................... 1
THE GW50:
WHAT IT IS AND WHAT IT CAN DO ............. 2
PANEL CONTROLS AND TERMINALS .......... 5
ASSIGNABLE BLOCK AND PEDAL
SWITCH FUNCTIONS ................................ 10
GUIDED TOUR (TUTORIAL) — SETTING UP,
PLAYING AND USING YOUR GW50
SETTING UP AND PLAYING YOUR
GW50 .................................................................... 19
DEMO MODE PLAYING THE
DEMONSTRATION SONGS .............................. 22
EFFECT SECTION ............................................... 24
PLAYING WITH SOME OF THE
EFFECTS .......................................................... 24
CHANGING THE SOUND OF
THE EFFECTS ................................................. 26
CHANGING (EDITING) AN EFFECT
PROGRAM AND SAVING IT ........................ 29
USING THE NOISE GATE TO GET
A CLEAN SIGNAL .......................................... 31
BACKING SECTION ........................................... 32
PLAYING PATTERNS —
PATTERN MODE ............................................ 32
PLAYING AND RECORDING SONGS —
SONG MODE ................................................... 36
USING THE BUILT-IN TUNER ......................... 39
TABLE OF CONTENTS
REFERENCE/EFFECT SECTION
ABOUT THE MANUAL, MEMORY AND
MEMORY EDIT MODES .................................... 43
MANUAL MODE ................................................. 44
Selecting an Effect Type ............................... 44
Turning Individual Effects On and Off......... 44
Editing Parameters ........................................ 44
Utility Functions............................................ 45
Determining the Order of the Effect
Blocks — CONNECT............................... 45
Bypass Switching of Effect Blocks —
GROUP ..................................................... 45
Setting the Function of the External Foot
Controller — FOOT.................................. 46
Setting the MINIMUM VOLUME Level
(for External Foot Controller and
ASSIGNABLE Block Volume Control) —
MIN VOL.................................................. 47
ASSIGNABLE Block Functions —
MIN/MAX Volume and Auto Volume......... 48
Setting the AUTO VOLUME Rate —
AUTO VOL .................................................. 49
MANUAL JOB MODE ........................................ 50
Saving the Manual Mode Settings to
an Effect Program ......................................... 50
MEMORY MODE ................................................ 51
Selecting Effect Programs............................. 51
Checking Parameter Values of the Effect
Program ......................................................... 51
ASSIGNABLE Block and Pedal Switch
Functions ....................................................... 51
Effect Program Selection .......................... 51
Bypass Switching of Effect Blocks .......... 52

TABLE OF CONTENTS v
TABLE OF CONTENTS
SONG MODE ....................................................... 79
SONG PLAY MODE
(SONG PLAYBACK)....................................... 79
Selecting and Playing Songs ......................... 79
Cursor Control in Song Mode....................... 80
Changing the Tempo ..................................... 80
Muting the Accompaniment, Bass and
Drums ............................................................ 80
Position Controls........................................... 81
ASSIGNABLE Block and Pedal Switch
Functions in Song Mode ............................... 82
Backing Control —
Selecting and Playing a Song ................... 82
Triggered Run ........................................... 82
RECORDING AND EDITING SONGS .......... 83
REALTIME RECORDING MODE
(REALTIME RECORDING)............................ 83
ASSIGNABLE Block and Pedal Switch
Functions in Song Realtime Recording ........ 86
Hints on Realtime Recording........................ 87
STEP RECORDING MODE
(STEP RECORDING)....................................... 88
SONG EDIT MODE (SONG EDITING) ......... 90
Viewing Recorded Events............................. 90
Editing (Changing) Recorded Events ........... 92
Erasing Recorded Events .............................. 92
Set A and Set B Operations .......................... 92
Marking Measure A and Measure B......... 92
Jumping to Measure A or Measure B....... 92
Loop (Repeat) Playback (A to B) ............. 92
Loop (Repeat) Recording (A to B) ........... 93
SONG JOB MODE ........................................... 94
Copying Measures Between A and B ........... 94
Deleting Measures Between A and B ........... 94
Naming Songs ............................................... 95
RESTORING FACTORY PRESET SONGS ... 95
MEMORY EDIT MODE .................................. 53
Compare Mode (Comparing the Edited
Program with the Original) ........................... 53
Saving the Memory Edit Mode Settings to
an Effect Program ......................................... 53
Recalling the Settings of the Original Program
(in Compare Condition) ................................ 54
MEMORY JOB MODE .................................... 54
Copying an Effect Program .......................... 54
Swapping One Effect Program with
Another.......................................................... 55
Naming an Effect Program ........................... 55
Using an External Footswitch ....................... 56
RESTORING FACTORY PRESET EFFECT
PROGRAMS ..................................................... 57
EFFECTS AND PARAMETERS ......................... 58
COMPRESSOR................................................. 58
DISTORTION ................................................... 59
EQUALIZER..................................................... 59
CHORUS........................................................... 63
REVERB/DELAY............................................. 66
NOISE GATE ................................................... 69
REFERENCE/BACKING SECTION
PATTERN MODE ................................................ 73
Selecting and Playing Patterns...................... 73
Cursor Control in Pattern Mode.................... 74
Changing Chords........................................... 74
Changing the Tempo ..................................... 76
Muting the Accompaniment, Bass and
Drums ............................................................ 76
ASSIGNABLE Block and Pedal Switch
Functions in Pattern Mode ............................ 77
Backing Control ........................................ 77
Chord Recall ............................................. 77
Root Select ................................................ 78

vi TABLE OF CONTENTS
TABLE OF CONTENTS
ASSIGNABLE BLOCK AND PEDAL
SWITCH FUNCTIONS CHART .......................... 128
EFFECT PARAMETER CHART ......................... 130
FACTORY SET MEMORY EFFECT
PROGRAM LIST .................................................. 132
MEMORY EFFECT PARAMETER LIST ........... 133
MANUAL EFFECT FACTORY SET
PARAMETER CHART ........................................ 143
PRESET PATTERN LIST .................................... 144
DRUM AND PERCUSSION SOUNDS
USED FOR DRUM PARTS ................................. 146
FACTORY SET SONG LIST ............................... 147
MIDI SPECIFICATIONS ..................................... 148
MIDI IMPLEMENTATION CHART .................. 150
CHART OF CHORD FINGERINGS
FOR GUITAR ....................................................... 152
USE OF ADVANCED RECORDING TECHNIQUES
– FACTORY SET SONG 1 .................................. 153
DEMO SONG 1-6 – CHORD CHARTS .............. 156
REFERENCE/OTHER FUNCTIONS
(TUNER/MIDI)
TUNER MODE ..................................................... 99
MIDI ...................................................................... 101
MIDI BULK TRANSMISSION MODE .......... 102
CHANGING EFFECT PROGRAMS ON
THE GW50 FROM A CONNECTED
DEVICE ............................................................ 103
CHANGING PROGRAMS ON A CONNECTED
DEVICE FROM THE GW50 ........................... 104
TURNING INDIVIDUAL EFFECTS
ON AND OFF FROM A CONNECTED
DEVICE ............................................................ 104
SYNCHRONIZING ANOTHER DEVICE
WITH THE GW50 ............................................ 105
USING THE BACKING PATTERNS
TO PLAY OTHER SOUND MODULES ........ 106
APPENDICES
ERROR MESSAGES ............................................ 111
TROUBLESHOOTING ........................................ 114
SPECIFICATIONS ............................................... 117
INDEX ................................................................... 119
SUPPLEMENTAL INFORMATION
BLOCK DIAGRAM ............................................. 125
JOB TABLE .......................................................... 126

HOW TO USE THIS MANUAL (READ THIS FIRST!!) 1
HOW TO USE THIS MANUAL (READ THIS FIRST!)
HOW TO USE THIS MANUAL (READ THIS FIRST!!)
You are probably eager to try out your new GW50
right away and hear what it can do, rather than
have to read through a lot of instructions before
you can even get a sound out of it.
Before you do anything else, however, you should
read the PRECAUTIONS section. This tells you
briefly how to care for your new GW50, how to
avoid damaging it, and how to ensure long-term,
reliable operation.
Next, read through the section The GW50:
WHAT IT IS AND WHAT IT CAN DO.
This briefly gives you an overview of the
functions of the GW50 and how you can use it
effectively.
The bulk of the manual has been organized into
two parts: the GUIDED TOUR (TUTORIAL)
and the REFERENCE section.
Read the GUIDED TOUR (TUTORIAL) next. It
guides you step-by-step in setting up your GW50,
connecting it properly, and (most importantly!)
getting sound out of it. The section also goes on to
take you through some of the more important
functions of the GW50, explaining by way of
example how to use it.
The REFERENCE section, on the other hand, is a
comprehensive guide to all functions. You won’t
need (or want) to read through all of it at once, but
it is there for you to refer to when you need infor-
mation about a certain feature or function.
The PANEL CONTROLS AND TERMINALS is
also mainly for reference. However, you should
read through the parts here concerning the Pedal
Switches, since these are particularly useful and
convenient in operating the GW50. In general,
look through this section to familiarize yourself
with the controls, and refer to it when necessary.
The INDEX in the APPENDICES sections at the
back of this manual is also very helpful. It lists and
gives page numbers for virtually every function,
feature, control and terminal found on the GW50,
and gives you a quick, easy way to find what
you’re looking for.
Other parts of the APPENDICES and SUPPLE-
MENTAL INFORMATION sections provide
additional useful information: lists of all effect
programs, patterns and songs of the GW50, a list
of error messages, tips on troubleshooting (when
something doesn’t work as expected), and other
important information.

2 THE GW50: WHAT IT IS AND WHAT IT CAN DO
THE GW50: WHAT IT IS AND WHAT IT CAN DO
THE GW50: WHAT IT IS AND WHAT IT CAN DO
WHAT IT IS …
The Effect and Backing sections are active simul-
taneously; however, when making adjustments or
performing certain operations within a mode in
one of the sections, generally you should press the
desired mode button ([MANUAL], [MEMORY]
or [SONG/PATTERN]) to make sure that the
mode is properly called up before attempting the
operation.
Functions in Each Mode
Specific functions and operations of the various
modes include:
Manual: Changing the parameters of the effects.
Manual Job: Storing parameter settings to a pro-
gram.
Memory: Selecting and using an effect program.
Memory Edit: Changing the parameters of an
effect program.
Memory Edit Compare: Comparing the sound and
values of edited program with the
original.
Memory Job: Copying, swapping and naming
effect programs.
Pattern: Playing the patterns of the Backing sec-
tion.
Song: Playing a song, or using the Step Recording
features to edit a song.
Song Realtime Recording: Recording events to a
song in realtime.
Song Job: Copying or deleting measures within a
song; naming a song.
Keep in mind as you read this manual that the
phrase “main modes” refers to the Manual,
Memory, Pattern and Song modes, and that
“mode buttons” refers to the [MANUAL],
[MEM RY] and [S NG/PATTERN] buttons.
Effect and Backing Sections
The GW50 is actually two different devices in one.
On the one hand, it has an Effect section which
provides high-quality and easy-to-use multi effects
designed especially for processing electric guitar.
On the other, it has a Backing section which
provides realistic automatic rhythm, chord and
bass patterns for creating your own accompani-
ment. Moreover, the GW50 includes a built-in
tuner for tuning your instrument without having to
remove it from the effect chain.
The Effect section has two mode groups: Manual,
which lets you use the GW50 effects just as would
a normal pedal effect unit, and Memory, which
lets you call up preset effect programs and create
your own original programs.
The Backing section also has two mode groups:
Pattern, which lets you play the various rhythm
patterns, and Song, which lets you play pre-pro-
grammed songs and create your own original
songs.
Modes of the GW50
The tree chart on the next page shows the relation-
ships of the various modes of the GW50. There
are four main modes — Manual, Memory, Pattern
and Song — indicated by the shaded areas. All
other modes are either separate from them (as with
Tuner, MIDI Bulk Transmission and Demo) or are
subordinate to them.

THE GW50: WHAT IT IS AND WHAT IT CAN DO 3
THE GW50: WHAT IT IS AND WHAT IT CAN DO
the bank number/program number configuration to
which they can be stored.
The illustration below shows what comprises an
effect program (either Manual or Memory), and
Contents of an Effect Program
Compressor Distortion Equalizer Chorus Reverb/Delay
IN
order changeable order changeble
Noise
Gate
OUT
•DIST1
•DIST2
•DIST3
•DIST4
•Overdrive
• Equalizer
• Wah+EQ
•Amp
Simulator
+EQ
• Chorus 1
•Chorus 2
•Pitch
Shifter
•Flanger
•Phaser
•Reverb
•
Delay (Tap)
•Delay
+Reverb
EFFECT
ORDER
EFFECT
TYPE
EFFECT
PARAMETERS
BYPASS
SETTINGS
OTHER UTILITY
SETTINGS (Group, Foot Controller, Minimum Volume, Auto Volume)
Manual Effect Program
write
(store)
Memory Effect Program
There are 50 factory preset memory
effect programs. These can be freely
edited and stored.
Bank
number Program number
ONE EFFECT PROGRAM
EFFECT SECTION
MANUAL MODE
MEMORY MODE
or
JOB MODE
EDIT MODE
JOB MODE
or
COMPARE MODE
BACKING SECTION
PATTERN MODE
SONG MODE
or
REALTIME RECORDING MODE
JOB MODE
or
(PLAY / STEP RECORDING / EDIT)
TUNER MODE
MIDI BULK TRANSMISSION MODE
DEMO MODE
or
or
or
Main modes

4 THE GW50: WHAT IT IS AND WHAT IT CAN DO
THE GW50: WHAT IT IS AND WHAT IT CAN DO
The illustration below shows how the Pattern
mode and Song mode are used.
Pattern Mode
In the Pattern mode, individual patterns are played
back and repeated.
Song Mode
In the Song mode, the preset patterns can be strung
together to create a song. Other events, such as
chord changes and muting events, can also be
entered.
WHAT IT CAN DO …
Here are a few ideas on how you can
use your GW50. The list below is in
no way comprehensive, but is meant
to be a starting point or spring-
board for your own creative ideas
and explorations.
■All-in-one effect unit for
on the stage, in the
studio, or in rehearsal
With its five effect blocks, the GW50 has all you
need to augment your sound, whatever the applica-
tion. Any or all five effects can be used in virtually
any combination as an effect program, and you can
instantly select from 50 different effect programs
as you play. Plus, flexible effect bypass (on/off)
functions give you even more real time control
over the sound.
■Convenient practice tool
The rhythm, bass and accompaniment patterns of
the GW50 are perfect for playing along with. By
stringing together the rhythm patterns and record-
ing chord changes, you can create and playback
complete songs over which you can practice.
Having the full accompaniment behind you is a
much more inspiring and exciting way of
practicing than using just a metronome.
■Sketchpad for composing and
arranging
The accompaniment features can also be used to
help you flesh out your own musical ideas. With
the wealth of chords (a total of 25 different chord
types for each of the 12 keys) and the convenient
editing features, the GW50 makes it exceptionally
easy to quickly turn your inspirations into complete
songs. Plus, the extraordinarily realistic sounds
give you the tools to present polished versions of
your ideas to others.
Now that you have a basic idea of how the GW50
can help you in your music, go on to the GUIDED
TOUR (TUTORIAL), and learn how to set up and
use your GW50.
(for examples,
2 measures)
Pattern A Pattern B
Recorded events (chord changes, muting events etc.)

PANEL CONTROLS AND TERMINALS 5
PANEL CONTROLS AND TERMINALS
PANEL CONTROLS AND TERMINALS
This section shows and explains all of the controls and terminals of the GW50. Since
the explanations below are fairly brief, you should turn to the page references given
for more information on individual buttons and features.
A few general comments:
■Some of the buttons described below must be
pressed together to call up a certain function.
These are indicated either by a “+” mark (for
example, “[SHIFT] + [SUB PARAM]”), or by
the word “with” (for example, “With
[SHIFT]:”).
■Markings for three of the panel controls which
are used simultaneously with another control —
SHIFT
,
CHORD
and
B
(for the ASSIGN-
ABLE Block Pedal Switch) — are enclosed in a
border which indicates the direction(s) in which
their companion controls can be found. For
example, the
CHORD
mark points to the right,
indicating that the settings below the buttons on
the right can be selected by simultaneously
pressing
CHORD
and the appropriate button.
■Also, keep in mind that the function which is
enabled — simultaneously holding down
SHIFT
,
CHORD
or
B
, and pressing that
button — is always printed below the button.
■The buttons whose primary functions are indi-
cated in boxed titles above each button
([MANUAL], [M MORY] and [SONG/PAT-
T RN]) are referred to as the “mode buttons”
and can be conveniently used as exit buttons to
“escape” from most in-progress operations
(such as Copying, Naming, MIDI Bulk
Transmission, etc.).
■All controls that are used to increase or de-
crease values feature continuous and rapid
operation, to let you more quickly and easily
reach a desired value. With the [–]/[+] buttons,
hold down one button to continuously move
through the values and, while holding down
that button, press the other to increase the
speed. Releasing the second button returns to
normal speed. With Pedal Switches 1 and 2
(when used for [–]/[+] control) and the Position
Control buttons (<, >, etc.), holding down the
appropriate control moves through the values
with increasing speed.

6 PANEL CONTROLS AND TERMINALS
PANEL CONTROLS AND TERMINALS
11
20 21
22
23
24
12 13
14 15 16
17 18 19
1
10
2
3
4
5 6 78 9
s
■TOP PANEL
In Memory Edit mode: For selecting which
effect blocks are active in an effect program.
(See page 11.)
In Pattern mode: For performing various
control functions, such as (when BACKING
CONTROL is selected) selecting patterns,
starting or stopping a pattern, or (in CHORD
RECALL) changing to pre-assigned chords.
(See page 12.)
In Song mode (playback): For performing
various control functions, such as: selecting
songs, fast forwarding/rewinding within a
song, starting/stopping songs. (See page 13.)
In Song mode (recording): For starting or
stopping song recording and selecting pre-
assigned chords. (See page 13.)
• The REVERB/DELAY Pedal Switch is also
used as a delay time tap control. (See page 67.)
For more information on the Pedal Switches, see the
boxed section “ASSIGNABLE BLOCK AND PEDAL
SWITCH FUNCTIONS” on pages 10-14.
1ffect Type Switch
• For selecting the different effect types available
in each effect block. These are active only in the
Manual and Memory Edit modes. (See pages 26,
44.)
2Parameter Knobs
• For adjusting the main parameters of the ef-
fects. These are active only in the Manual and
Memory Edit modes. (See page 26.)
3ffect Block Pedal Switches
• The Pedal Switches have different functions
depending on the mode selected.
In Manual mode: For turning individual effect
blocks (or groups) on and off. (See page 11.)
In Memory mode: For selecting effect pro-
grams and changing the banks of the effect
programs. (See page 11.) Also, when AS-
SIGNABLE Pedal Switch has been pressed
twice quickly, for turning individual effect
blocks (or groups) on and off. (See page 11.)

PANEL CONTROLS AND TERMINALS 7
PANEL CONTROLS AND TERMINALS
•With [SHIFT]: For calling up Noise
Gate effect parameter. (See pages 31, 69.)
This also calls up the sub parameters of the
Equalizer, Chorus and Reverb/Delay effects.
(See page 44.)
8~#Position Control Buttons
8~@ffect Selector Buttons
8CMP/<< (SONG NAM )
• After pressing [SHIFT] + [SUB PARAM]:
Calls up Noise Gate parameter.
• In Connect and Group functions: Selects
Compressor effect block.
• In Song mode: For moving to the top of the
current or last measure. Hold down for rapid
operation.
• In Song mode, with [v]: For returning to the
beginning of a song.
9DST/< (M AS D L)
• After pressing [SHIFT] + [SUB PARAM]:
Calls up Noise Gate parameter.
• In Connect and Group functions: Selects
Distortion effect block.
• In Song mode: For moving backward in 16th-
note steps. Hold down for rapid operation.
• In Song mode (with [SHIFT]): For deleting a
selected range of measures from a song.
• In Song mode, with [n]: For returning to the
beginning of a song.
0Q/> (M AS COPY)
• After pressing [SHIFT] + [SUB PARAM]:
Calls up Equalizer Sub parameters.
• In Connect and Group functions: Selects
Equalizer effect block.
• In Song mode: For moving forward in 16th-
note steps. Hold down for rapid operation.
• In Song mode, with [>>]: For moving to the end
(last recorded event) of a song.
• In Song mode (with [SHIFT]): For copying a
selected range of measures in a song.
4MANUAL (TUN R)
• For selecting the Manual mode. Pressing this
button in any operating condition calls up the
Manual mode.
• With [SHIFT]: For selecting the Tuner
function. (See pages 39, 99.)
5M MORY (COPY/NAM )
• For selecting the Memory mode. Pressing this
button in any operating condition calls up the
Memory mode.
• With [SHIFT]: For calling up (and toggling
between) the Effect Copy, Effect Swap and
Effect Name operations.
6DIT/COMPAR (MIDI BULK)
• In Memory mode: Selects the Memory
Edit mode, and serves as a Compare switch to
toggle between the newly edited settings of an
effect program and its original settings (the
LED flashes in the Compare condition). (See
pages 29, 53.)
• With [SHIFT]: For calling up the MIDI
Bulk Transmission operation. (See page 102.)
7ffect Utility Switch
(CONN CT … AUTO VOL)/(SUB PARAM)
• For selecting the miscellaneous Utility func-
tions of the GW50:
■CONNECT — For determining the order of
the effect blocks. (See page 45.)
■GROUP — For simultaneously switching
several effect blocks on/off. (See page 45.)
■FOOT (Foot Controller) — For determin-
ing how the optional FC7 Foot Controller is
used. (See pages 46, 47.)
■ MIN VOL (Minimum Volume) — For deter-
mining the minimum volume setting for the
optional FC7 Foot Controller and the ASSIGN-
ABLE Block Pedal Switch (which can be used
to instantly change between minimum and
maximum volume). (See page 47.)
■AUTO VOL (Auto Volume) — ASSIGN-
ABLE Block Pedal Switch can be used to
gradually fade up volume at the rate set here.
(See page 49.)

8 PANEL CONTROLS AND TERMINALS
PANEL CONTROLS AND TERMINALS
!CHO/>> ( RAS )
• After pressing [SHIFT] + [SUB PARAM]:
Calls up Chorus Sub parameters.
• In Connect and Group functions: Selects
Chorus effect block.
• In Song mode: For moving to the top of the
next measure. Hold down for rapid operation.
• In Song mode, with [>>]: For moving to the end
(last recorded event) of a song.
• In Song mode (with [SHIFT]): For erasing the
recorded event(s) at a specific position in a
song.
@R V/S T-A (JUMP-A)
• After pressing [SHIFT] + [SUB PARAM]:
Calls up Reverb/Delay Sub parameters.
• In Connect and Group functions: Selects
Reverb/Delay effect block.
• In Song mode: For setting the “A” mark in a
song. Pressing [SHIFT] + [JUMP-A] jumps to
the A-marked measure.
#Foot Controller/S T-B (JUMP-B)
• In the Foot (Foot Controller) function: For
determining how the connected foot controller
is used. (See page 46.)
• In Song mode: For setting the “B” mark in a
song. Pressing [SHIFT] + [JUMP-B] jumps to
the B-marked measure.
$SHIFT
• For selecting the shifted-state functions, indi-
cated by the names printed below the appropri-
ate buttons. Hold down this button and simulta-
neously press the appropriate button. (The
arrow marks printed with the button name
indicate the direction in which the appropriate
buttons can be found.)
%– (ACCOMP)
• For decreasing a selected parameter value (as
described for the modes below). Hold down for
rapid operation.
11
20 21
22
23
24
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14 15 16
17 18 19
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2
3
4
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PANEL CONTROLS AND TERMINALS 9
PANEL CONTROLS AND TERMINALS
In Song/Pattern mode: For decreasing the
value at the cursor position (for example,
Tempo or Pattern).
In Memory mode: For moving backward through
the effect programs, one by one (when the
cursor arrow is not shown in the display).
In Manual and Memory Edit mode (sub pa-
rameters, MIN VOL, and AUTO VOL): For
decreasing the value of the selected sub
parameter (when the cursor arrow is at the
bottom of the display).
• With [SHIFT] (in the Song/Pattern modes):
For turning the sound of the Backing Accompa-
niment on and off, while the song or pattern is
playing.
^+ (BASS)
• For increasing a selected parameter value (as
described for the modes below). Hold down for
rapid operation.
In Song/Pattern mode: For increasing the value
at the cursor position (for example, Tempo
or Pattern).
In Memory mode: For moving forward through
the effect programs, one by one (when the
cursor arrow is not shown in the display).
In Memory Edit mode (sub parameters, MIN
VOL, and AUTO VOL): For increasing the
value of the selected sub parameter (when the
cursor arrow is at the bottom of the display).
• With [SHIFT] (in the Song/Pattern modes):
For turning the sound of the Backing Bass on
and off, while the song or pattern is playing.
&6 CURSOR (DRUMS)
• In Song/Pattern modes: For moving the cursor
arrow in the display.
• With [SHIFT] (in Song/Pattern modes): For
turning the sound of the Backing Drums on and
off, while the song or pattern is playing.
*SONG/PATT RN (SONG R C)
• For switching between the Song and Pattern
modes. The LED of the selected function lights.
• With [SHIFT]: For enabling realtime recording
of a song (the LED flashes to indicate record
standby). (See pages 37, 84.)
(START/STOP (A-B R P AT )
• For starting/stopping the Backing Song or
Pattern (the LED flashes).
• With [SHIFT]: For enabling the Repeat func-
tion. (See pages 92, 93.)
)CHORD
• Similar to [SHIFT], for selecting the secondary
(lower) functions of the Chord buttons. The
arrow mark pointing right (printed with the
button name) indicates the direction in which
the appropriate buttons can be found. (For
details on this and other chord-related functions,
refer to pages 74-76.)
qChord Buttons
• For selecting the chord root note, or (after
pressing [CHORD] + [on/ROOT]) for select-
ing the bass note.
• With [CHORD]: For selecting the chord type.
wNT R (on/ROOT)
• In Song mode (step recording): For recording or
entering event data to a song.
• With [CHORD]: For enabling selection of the
bass note.

10 PANEL CONTROLS AND TERMINALS
PANEL CONTROLS AND TERMINALS
LCD Display
Note: Other display indications are explained later in
the relevant sections of the manual.
3
14
24
ASSIGNABL BLOCK AND P DAL SWITCH FUNCTIONS
ABOUT TH ASSIGNABL BLOCK L D INDICATORS
The following illustration shows how and under what conditions
the ASSIGNABLE block LEDs are lit.
ASSIGNABLE Block Controls
eASSIGNABL Block Type Switch
• For selecting various control functions for the
ASSIGNABLE Block Pedal Switch and the
other Pedal Switches including effect program
selection, turning individual effect blocks (or
groups) on and off, MIN/MAX Volume, Auto
Volume, Backing Control and Chord Recall.
rASSIGNABL Block Pedal Switch
• For performing various control functions,
including effect program selection, turning
individual effect blocks (or groups) on and off,
MIN/MAX Volume, Auto Volume, Backing
Control and Chord Recall. (The arrow mark
printed with the button name at the bottom left
indicates the direction in which the appropriate
buttons can be found.)
For more information on the ASSIGNABLE
Block Pedal Switch and the other Pedal
Switches, see the section “ASSIGNABLE
BLOCK AND PEDAL SWITCH FUNCTIONS”
on pages 10-14.
1INPUT PEAK indicator — for monitoring the input signal
level (lights continuously when level is too high).
2BANK/MEMORY indicator — displays the memory bank
and program numbers. When selecting songs, this briefly
displays the song number. In the Tuner function, this displays
the string number (when an open string is played) and/or the
name of the note played (for example, 6E).
3Sharp indicator — This flashes when a sharp note (for
example, Gor C) is played in the tuner function.
46— This cursor arrow points to a value in the display that can
currently be changed by using the [–]/[+] buttons.
When [MANUAL] or [MEMORY] are pressed (calling up
the Effect mode display), the arrow automatically disappears
from the display. You can use [6CURSOR] to move the
cursor arrow back “in” the display. When [SONG/PAT-
TERN] is pressed (calling up the Backing mode display), the
cursor automatically appears in the display.
LED status
: Lit
: Flashing
: Off
Indicates bank/
program number
can be selected.
Indicates maximum
volume.
Indicates minimum
volume.
Indicates maximum
volume.
Indicates mute
or fade-in condition.
On
(active).
Off
(not active).
Off
(not active).
MEMORY ( BANK)/ x2 ON•OFF
MIN/MAX VOLUME
AUTO VOLUME ( MUTE
FADE IN)
BACKING CONTROL
CHORD RECALL
Note: The MEMORY LED
above will still be lit or flashing,
even if either of these is on.
When [MANUAL] is pressed
When [MEMORY] is pressed
When [SONG/PATTERN] is pressed
When [SHIFT] + [SONG REC]
are
p
ressed
On
(active).
Off
(not active).
Off
(not active).
the MEMORY LED here flashes,
and no other LED in this block is lit.
only the MEMORY LED here is lit or flashing.
only the BACKING CONTROL LED is lit.
only the CHORD RECALL LED is lit.
Indicates effect
(or effect group) can
be turned on/off.
Off
(not active).
Indicates Triggered
Run standby condition.
s

PANEL CONTROLS AND TERMINALS 11
PANEL CONTROLS AND TERMINALS
ABOUT THE PEDAL SWITCHES
The Pedal Switches have many different functions, depending on the ASSIGNABLE block settings
(indicated by the LEDs in the ASSIGNABLE block) and the selected mode. The following panel illus-
trations and explanations should help you in understanding how the Pedal Switches are used.
In the Manual, Memory* and Memory Edit mode :
When switching on/off individual effect blocks (or Groups) is enabled —
* Available in Memory mode only when ASSIGNABLE Block Pedal Switch has been pressed twice
quickly (enabling effect on/off control).
In the Memory mode:
When selection of effect bank number/program number is enabled —
Memory LED flashes.
Turns Compressor
(or selected Group)
on or off.
Turns Distortion
(or selected Group)
on or off.
Turns Equalizer
(or selected Group)
on or off.
Turns Chorus
(or selected Group)
on or off.
Turns Reverb/Delay
(or selected Group)
on or off. In Memory mode, pressing
once enables effect program
selection with Pedal Switches
1–5. For controlling MIN/MAX
VOLUME or AUTO VOLUME
(when either of those functions
have been selected with the
type switch).
Memory LED is lit continuously.
Selects effect program
number 1 (for the
current bank); with the
ASSIGNABLE Block
Pedal Switch, selects
bank 1 or 6.
Selects effect program
number 2 (for the
current bank); with the
ASSIGNABLE Block
Pedal Switch, selects
bank 2 or 7.
Selects effect program
number 3 (for the
current bank); with the
ASSIGNABLE Block
Pedal Switch, selects
bank 3 or 8.
Selects effect program
number 4 (for the
current bank); with the
ASSIGNABLE Block
Pedal Switch, selects
bank 4 or 9.
Selects effect program
number 5 (for the
current bank); with the
ASSIGNABLE Block
Pedal Switch, selects
bank 5 or 0.
Pressing this once and pressing another Pedal Switch selects banks 1 – 5.
Holding this and pressing another Pedal Switch selects banks 6 – 0.
Pressing twice quickly enables Pedal Switch control over on/off of individual effect or selected Group.
For controlling MIN/MAX VOLUME or AUTO VOLUME
(when either of those functions have been selected with the type switch).