Boss Audio Systems GT-6B Power Supply, Placement, Maintenance, Repairs and Data, Memory Backup

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IMPORTANT NOTES

291a

In addition to the items listed under “USING THE UNIT SAFELY” on page 2–3, please read and observe the following:

Power Supply

301

Do not use this unit on the same power circuit with any device that will generate line noise (such as an electric

motor or variable lighting system).

302

The AC adaptor will begin to generate heat after long hours of consecutive use. This is normal, and is not a

cause for concern.

307

Before connecting this unit to other devices, turn off the power to all units. This will help prevent malfunctions and/or damage to speakers or other devices.

Placement

351

Using the unit near power amplifiers (or other equipment containing large power transformers) may induce hum. To alleviate the problem, change the orientation of this unit; or move it farther away from the source of inter-

ference.

352a

This device may interfere with radio and television exception. Do not use this device in the vicinity of such

receivers.

352b

Noise may be produced if wireless communications devices, such as cell phones, are operated in the vicinity of this unit. Such noise could occur when receiving or initi- ating a call, or while conversing.

Should you experience such problems, you should relocate such wireless devices so they are at a greater

distance from this unit, or switch them off.

355

To avoid possible breakdown, do not use the unit in a wet area, such as an area exposed to rain or other moisture.

Maintenance

401a

For everyday cleaning wipe the unit with a soft, dry cloth or one that has been slightly dampened with water. To remove stubborn dirt, use a cloth impregnated with a mild, non-abrasive detergent. Afterwards, be sure to wipe

the unit thoroughly with a soft, dry cloth.

402

Never use benzine, thinners, alcohol or solvents of any kind, to avoid the possibility of discoloration and/or deformation.

Repairs and Data

452

Please be aware that all data contained in the unit’s memory may be lost when the unit is sent for repairs. Important data should always be backed up in another MIDI device (e.g., a sequencer), or written down on paper (when possible). During repairs, due care is taken to avoid the loss of data. However, in certain cases (such as when circuitry related to memory itself is out of order), we regret that it may not be possible to restore the data, and Roland assumes no liability concerning such loss of data.

Memory Backup

501b

This unit contains a battery which powers the unit’s memory circuits while the main power is off. When this battery becomes weak, the message shown below will appear in the display. Once you see this message, have the battery replaced with a fresh one as soon as possible to avoid the loss of all data in memory. To have the battery replaced, consult with your retailer, the nearest Roland Service Center, or an authorized Roland distributor, as listed on the “Information” page.

Additional Precautions

551

Please be aware that the contents of memory can be irretrievably lost as a result of a malfunction, or the improper operation of the unit. To protect yourself against the risk of loosing important data, we recommend that you periodically save a backup copy of important data you have stored in the unit’s memory in another MIDI

device (e.g., a sequencer).

552

Unfortunately, it may be impossible to restore the contents of data that was stored in another MIDI device (e.g., a sequencer) once it has been lost. Roland Corporation

assumes no liability concerning such loss of data.

553

Use a reasonable amount of care when using the unit’s buttons, sliders, or other controls; and when using its jacks

and connectors. Rough handling can lead to malfunctions.

554

Never strike or apply strong pressure to the display.

556

When connecting / disconnecting all cables, grasp the connector itself—never pull on the cable. This way you will avoid causing shorts, or damage to the cable’s

internal elements.

558a

To avoid disturbing your neighbors, try to keep the unit’s volume at reasonable levels. You may prefer to use headphones, so you do not need to be concerned about

those around you (especially when it is late at night).

559a

When you need to transport the unit, package it in the box (including padding) that it came in, if possible. Otherwise,

you will need to use equivalent packaging materials.

561

Use only the specified expression pedal (EV-5; sold separately). By connecting any other expression pedals,

you risk causing malfunction and/or damage to the unit.

562

Use a cable from Roland to make the connection. If using some other make of connection cable, please note the following precautions.

Some connection cables contain resistors. Do not use cables that incorporate resistors for connecting to this unit. The use of such cables can cause the sound level to be extremely low, or impossible to hear. For infor- mation on cable specifications, contact the manufac- turer of the cable.

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Contents Printing Conventions in This Manual Copyright 2002 Boss CorporationPage Page Power Supply PlacementMaintenance Memory BackupContents Contents Main Features Front Panel Panel DescriptionsCOMP/LIMITER p Compressor/Limiter REV/DLY p Reverb/Delay Panel DescriptionsOVERDRIVE/DISTORTION p Chorus pFX-1 p Panel Descriptions WAH pFX-2 p Rear Panel Playing Sounds Making ConnectionsTurning On the Power Adjusting the Output LevelSwitch on the Power switch on the GT-6B’s rear panel Next, turn on the power to the bass amp power ampHow to Switch Patches What is a Patch?Selecting Patches Turning Off the Power If the Patch Does Not SwitchSwitching Patches by Specifying the Bank and Number Turning Each of the Effects in a Patch On and OffAdjusting the Tones with the Knobs Getting the Tones You Want- Fast EZ ToneComp ATK Compressor attack Limiter THR Limiter thresholdCreating You Own Favorite Tones Patches To select another effect to be switched on and off Switch on and offAdding and Omitting Effects Repeat Steps 1Parameter whose settings are to be changed Quick SettingRotate the Value dial to select the effect setting you Rotate the Value dial to change the settings valuePedal Bend Using the Pedal Effects Wah, Pedal Bend, Ring ModulatorPress FX-2 Turn on the FX-2 effect Adding Effects p Naming Tones Ring ModulatorPress FX-1 Turn on the FX-1 effect Adding Effects p Press NAME/NS/MASTER until Name appears in the displayChanging the Order of the Effects Effect Chain Appears in the displayWrite Saving the Tones You Have CreatedCopying Patches Exchanging Patches Saving the Tones You Have CreatedEffects Explained Compressor/LimiterOD/DIST Overdrive/Distortion OD OverdriveDST Distortion FUZ FuzzREV/DLY Reverb/Delay/ SOS Sound On Sound DLY Delay REV ReverbSOS Sound On Sound Reverb & DelayPreamp Speaker WH Pedal Wah Effects Explained Direct LevelFreq Frequency FX Select Effect SelectTW Touch Wah AW Auto WahFX-1 OCT OctaveENH Enhancer Effects Explained RateSG Slow Gear DEF DefretterEffects Explained Sens Mix LevelPH Phaser FX-2FL Flanger HRM HarmonistPitch Shifter PB Pedal Bend 2CE 2x2 ChorusASL Auto Slap Length SDD Short DelaySound VIB Vibrato HMN HumanizerTrigger VowelSYN Bass Synth Octave Shift PWM Rate Pulse Width Modulation RatePWM Depth Pulse Width Modulation Depth Noise LevelFV Foot Volume Quick Settings pManual Settings p NS Noise SuppressorSettings for Using Expression Pedal Setting the Range of the Volume ChangeMaking Settings Instantly Quick Settings Setting the Pedal Functions Pedal AssignPedal Settings for the Expression Pedal Switch Pedal Settings for the CTL PedalEditing Quick Settings Source ModeTarget Target Variation RangeMaking the Assign On/Off Setting Press Pedal AssignMaking the Parameter Settings When using the foot switchWhen using the expression pedal TargetSource Mode SourceSetting the Pedal Functions Pedal Assign Active Range For Foot VolumeExample Act. Range Lo 40, Act. Range Hi For Pitch ShifterUsing the Customize Function Making Custom Overdrive/Distortion SettingsMaking Custom Pedal Wah Settings Using the Customize FunctionProcedure Using Sound On SoundNumber 4 pedal Stop, Erase Convenient Features of the GT-6B Using the Expression Pedal Even When Bypass Is in EffectSwitching Bypass On and Off Switching the XLR Output Connector SignalsQuick Patch Volume Adjustment Effect Level Knob Tuning the BassAbout the Display During Tuning Convenient Features of the GT-6BChanging the Tuner Settings How to TuneStandard Pitch 435-445 Hz Using the Digital Out Adjusting the Output Level from Digital OUTNS Thrshold Noise Suppressor Threshold -20 dB-+20 dB Revrb Level Reverb Level 0%-200%Checking the Effect Output Level with the Level Meter Press Utility a number of times until Meter is displayedAdjusting the Display Contrast LCD Contrast Limiting the Banks That Can Be Switched Bank ExtentSwitching Only the Number Other FunctionsOther Functions Switching the Bank and Number Press the Bank or Bank pedal to select the desired bankPress a number pedal to select the patch you want to use ImmediateSetting Expression Pedal Hold Selecting the PATCH/VALUE Dial Function Dial FunctionOther Functions Patch No.& ValueSetting the Knob Functions Knob Mode Using Midi What Can You Do with MIDI?Operating From the GT-6B Controlling the GT-6B Remotely From an External Midi DeviceMaking the Settings for Midi Functions Using MidiMidi Expression Pedal Switch Out Off, 1-31 Midi PC OUT Midi Program Change Out Off, OnMidi EXP OUT Midi Expression Pedal Out Off, 1-31 Midi CTL OUT Midi Control Pedal Out Off, 1-31Transmitting and Receiving Midi Data Transmitting Data to an External Midi Device Bulk DumpMaking the Connections TransmittingWhen Receiving Data Saved on a Midi Sequencer Receiving Data from an External Midi Device Bulk LoadReceiving Press Exit to quit Bulk LoadSetting the Program Change Map Initial Program Change Map SettingsUsing Midi Appendices About MidiHow Midi messages are transmitted and received Main types of Midi message used by the GT-6BFactory Settings About the Midi implementationRestoring the Factory Settings Factory Reset Adjusting the Expression PedalAppendices SystemTroubleshooting No sound / Volume is weakVolume level does not change with Foot Volume Can’t Change PatchesAppendices Midi messages are not transmitted Error MessagesReceived Midi Implementation Chart Main Specifications GT-6B Bass Effects ProcessorIndex NumericsIndex LPFTHR Memo Memo Avis G601744601