Boss Audio Systems GT-6B Troubleshooting, No sound / Volume is weak, Can’t Change Patches

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Appendices

Troubleshooting

If there is no sound, or if the GT-6B does not function as you expect, first check the following points. If the measures in this checklist do not resolve your problem, you should contact your dealer or the nearest Roland Service Center.

No sound / Volume is weak

❍Are the connection cables broken?

→Try exchanging the connection cable.

❍Is the GT-6B correctly connected to the other devices?

→Check connections with the other devices (p. 12).

❍Is the connected amp/mixer turned off, or the volume lowered?

→Check the settings of the connected device.

❍Is the EFFECT LEVEL knob lowered?

→Adjust the EFFECT LEVEL knob to an appropriate position (p. 17).

❍Is Tuner/Bypass set to ON?

→The direct sound is not output by setting the Tuner/ Bypass to “On” (p. 56).

❍Is each effect set correctly?

→Use the “Meter function” (p. 59) to check the output level of each effect. If there is an effect for which the meter is not moving, check the settings for that effect.

❍Is “FV: Level” or “MST: Effect Level” specified as a Pedal Assign Target?

→Carry out the operation in accordance with the source.(p. 50)

The volume level of the instrument connected to INPUT jack is too low:

❍Could you be using a connection cable that contains a resistor?

→Use a connection cable that does not contain a resistor.

I Can’t Change Patches

❍Is something other than the Play screen shown in the display?

→On the GT-6B, patches can be selected only when the Play screen is displayed. Press [EXIT] to return to the Play screen (p. 10).

Parameters specified with control assign can’t be controlled as intended

❍Is the effect switched off?

→To control a parameter using the expression pedal or CTL pedal, make sure the effect that contains the parameter you intend to control is switched on.

❍Is something other than “Assignable” selected for the SUB CTL 1,2 function setting?

→When operating a foot switch connected to the SUB EXP/SUB CTL 1, 2 jack, set the SUB CTL 1, 2 function to “Assignable.” (p. 63)

❍Do the MIDI channel settings of both devices match (when using MIDI)?

→Make sure that the MIDI channels of both devices match (p. 65).

*When “Omni On” is selected in Omni mode, messages on all MIDI channels are received, regardless of the MIDI channel settings (p. 65).

→Make sure that the controller numbers of both devices match (p. 66).

Volume level does not change with Foot Volume

❍Is “OFF” selected in Bypass EXP Mode (p. 55) and Noise Suppressor (p. 44)?

→If “OFF” is set in Bypass EXP Mode, note the following:

•When all effects are set to OFF, the analog bypass sound is output, and the volume cannot be controlled with Foot Volume (p. 44).

•When CHORUS or REV/DLY are the only effects being used, analog bypass sound is output for the direct sound, so only the effect sound is controlled with the FOOT VOLUME (p. 44).

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Contents Printing Conventions in This Manual Copyright 2002 Boss CorporationPage Page Maintenance Power SupplyPlacement Memory BackupContents Contents Main Features COMP/LIMITER p Compressor/Limiter Panel DescriptionsFront Panel OVERDRIVE/DISTORTION p REV/DLY p Reverb/DelayPanel Descriptions Chorus pFX-2 p Panel Descriptions WAH pFX-1 p Rear Panel Playing Sounds Making ConnectionsSwitch on the Power switch on the GT-6B’s rear panel Turning On the PowerAdjusting the Output Level Next, turn on the power to the bass amp power ampSelecting Patches What is a Patch?How to Switch Patches Switching Patches by Specifying the Bank and Number Turning Off the PowerIf the Patch Does Not Switch Turning Each of the Effects in a Patch On and OffComp ATK Compressor attack Adjusting the Tones with the KnobsGetting the Tones You Want- Fast EZ Tone Limiter THR Limiter thresholdCreating You Own Favorite Tones Patches Adding and Omitting Effects To select another effect to be switched on and offSwitch on and off Repeat Steps 1Rotate the Value dial to select the effect setting you Parameter whose settings are to be changedQuick Setting Rotate the Value dial to change the settings valuePress FX-2 Turn on the FX-2 effect Adding Effects p Using the Pedal Effects Wah, Pedal Bend, Ring ModulatorPedal Bend Press FX-1 Turn on the FX-1 effect Adding Effects p Naming TonesRing Modulator Press NAME/NS/MASTER until Name appears in the displayChanging the Order of the Effects Effect Chain Appears in the displayCopying Patches Saving the Tones You Have CreatedWrite Exchanging Patches Saving the Tones You Have CreatedEffects Explained Compressor/LimiterDST Distortion OD/DIST Overdrive/DistortionOD Overdrive FUZ FuzzREV/DLY Reverb/Delay/ SOS Sound On Sound DLY Delay REV ReverbPreamp Reverb & DelaySOS Sound On Sound Speaker Freq Frequency WH Pedal WahEffects Explained Direct Level FX Select Effect SelectTW Touch Wah AW Auto WahENH Enhancer FX-1OCT Octave Effects Explained RateEffects Explained Sens SG Slow GearDEF Defretter Mix LevelPH Phaser FX-2FL Flanger HRM HarmonistPitch Shifter PB Pedal Bend 2CE 2x2 ChorusASL Auto Slap Sound SDD Short DelayLength Trigger VIB VibratoHMN Humanizer VowelSYN Bass Synth PWM Depth Pulse Width Modulation Depth Octave ShiftPWM Rate Pulse Width Modulation Rate Noise LevelManual Settings p FV Foot VolumeQuick Settings p NS Noise SuppressorSettings for Using Expression Pedal Setting the Range of the Volume ChangePedal Settings for the Expression Pedal Switch Making Settings Instantly Quick SettingsSetting the Pedal Functions Pedal Assign Pedal Settings for the CTL PedalTarget Editing Quick SettingsSource Mode Target Variation RangeMaking the Assign On/Off Setting Press Pedal AssignWhen using the expression pedal Making the Parameter SettingsWhen using the foot switch TargetSource Mode SourceExample Act. Range Lo 40, Act. Range Hi Setting the Pedal Functions Pedal Assign Active RangeFor Foot Volume For Pitch ShifterUsing the Customize Function Making Custom Overdrive/Distortion SettingsMaking Custom Pedal Wah Settings Using the Customize FunctionNumber 4 pedal Stop, Erase Using Sound On SoundProcedure Switching Bypass On and Off Convenient Features of the GT-6BUsing the Expression Pedal Even When Bypass Is in Effect Switching the XLR Output Connector SignalsAbout the Display During Tuning Quick Patch Volume Adjustment Effect Level KnobTuning the Bass Convenient Features of the GT-6BStandard Pitch 435-445 Hz How to TuneChanging the Tuner Settings NS Thrshold Noise Suppressor Threshold -20 dB-+20 dB Using the Digital OutAdjusting the Output Level from Digital OUT Revrb Level Reverb Level 0%-200%Checking the Effect Output Level with the Level Meter Press Utility a number of times until Meter is displayedSwitching Only the Number Adjusting the Display Contrast LCD ContrastLimiting the Banks That Can Be Switched Bank Extent Other FunctionsPress a number pedal to select the patch you want to use Other Functions Switching the Bank and NumberPress the Bank or Bank pedal to select the desired bank ImmediateOther Functions Setting Expression Pedal HoldSelecting the PATCH/VALUE Dial Function Dial Function Patch No.& ValueSetting the Knob Functions Knob Mode Operating From the GT-6B Using MidiWhat Can You Do with MIDI? Controlling the GT-6B Remotely From an External Midi DeviceMaking the Settings for Midi Functions Using MidiMidi EXP OUT Midi Expression Pedal Out Off, 1-31 Midi Expression Pedal Switch Out Off, 1-31Midi PC OUT Midi Program Change Out Off, On Midi CTL OUT Midi Control Pedal Out Off, 1-31Making the Connections Transmitting and Receiving Midi DataTransmitting Data to an External Midi Device Bulk Dump TransmittingReceiving When Receiving Data Saved on a Midi SequencerReceiving Data from an External Midi Device Bulk Load Press Exit to quit Bulk LoadSetting the Program Change Map Initial Program Change Map SettingsUsing Midi How Midi messages are transmitted and received AppendicesAbout Midi Main types of Midi message used by the GT-6BFactory Settings About the Midi implementationAppendices Restoring the Factory Settings Factory ResetAdjusting the Expression Pedal SystemVolume level does not change with Foot Volume TroubleshootingNo sound / Volume is weak Can’t Change PatchesReceived Error MessagesAppendices Midi messages are not transmitted Midi Implementation Chart Main Specifications GT-6B Bass Effects ProcessorIndex NumericsIndex LPFTHR Memo Memo Avis G601744601
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