Roland VGA-3 owner manual Troubleshooting, Trouble with the Sound, Other Problems

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Additional Data

Troubleshooting

This section explains some things that might go wrong when using the VGA-3, and what needs to be done to correct the problem.If you think there may be something wrong with your VGA-3, please check through the following first. If these suggestions don't fix the problem, then go ahead and contact the store you bought it from, or your nearest Roland Service Station.

Trouble with the Sound

Odd Sound / No Sound When Guitar Is Played

●Is the value for the [MASTER], [GAIN], or [VOLUME] knobs, or for the [GAIN] or [VOLUME] settings stored in the memory set to “0”?

➔Raise the volume to a suitable level.

●Are the [BASS], [MIDDLE], or [TREBLE] knobs set to “0”?

➔Depending on the model selected with the Amp Type (p. 17), no sound may be produced when [BASS], [MIDDLE], and [TREBLE] are all set to “0.”

●Are you using an expression pedal?

➔There may be no sound produced when the pedal portion is set to the released position. Try operating the pedal.

●If controlling the volume with MIDI, was the MIDI connection disrupted while the volume was set to “0”?

➔Reconnect the MIDI device and raise the volume, or turn the VGA-3’s power off and then on again.

●Is TUNER set to ON?

➔Turn TUNER off, or set the volume to be used for the TUNER function (p. 24).

●Is the unit in SYSTEM SETUP mode?

➔Exit SYSTEM SETUP mode. Depending on the SYSTEM SETUP parameters, sounds may not be output.

●Is there anything plugged into the RECORDING OUT/ PHONES jack?

➔Disconnect the plug. No sound is output from the built- in speaker when anything is plugged into the RECORDING OUT/PHONES jack.

The COSM GUITAR sound isn’t right

●Is the GK pickup setting correctly?

➔Check the GK pickup setting (p. 11).

Internal Effects Not Being Applied

●Is a foot switch connected?

➔If the effect has been turned off with the foot switch, you can turn the effect on by returning the knob to the “0” position.

Wah Sound Not Produced

➔An expression pedal (the optional EV-5) is required to alter the filter used for the wah effect.

Interruptions in the Sound

●Is the noise suppressor effect set near “10” (higher threshold)?

➔Make a lower noise suppressor effect setting (p. 25).

The volume level of the instrument connected to EXT IN is too low

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

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

Other Problems

VGA-3 Receives Commands from Foot Controller or Other Device, But Memories Do Not Switch

●Is the external device transmitting over a MIDI channel that cannot be received by the VGA-3?

➔Set the MIDI channel on the external device to Channel 1. Otherwise, set MIDI OMNI MODE in the VGA-3’s MIDI settings to ON (p. 26).

Tuner Meter Indicator Flashes With MIDI Device In Use

●Could the external MIDI device have transmitted a large volume of data all at once?

➔After the indicator flashes for a short while, the VGA-3 automatically returns to the condition it was in before receiving the data. Reduce the amount of data that will be transmitted by the external device, then have it send the data again.

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Contents Cosm Amplifier Main FeaturesImportant Safety Instructions Page Fig. a Maintenance Power SupplyPlacement Additional Precautions Contents Front Panel Basic OperationWrite Button Rear Panel Turning the Power OnBasic Setting Procedure Settings for the GK Pickup GK SetupPreparations for using the GK Pickup GK Direction Setting Type of SettingsGK Setting Settings GK S1/S2 Setting GK Phase SettingGK Sens 6-1 Settings Rotate Guitar Type to selectFinishing the GK Setup GK Level SettingGK Setup Chart Press TunerElectric List of Guitar TypesAcoustic SpecialSynth Filter More Advanced OperationPoly Octave String Select Select Poly Octave Press Pickup to select the patternCombo List of Amp TypesStack Effects Changing the Doubling Delay Time Setting the Delay Time with TAP InputClear WarmSpring PlateOperate the knob for the setting you want to check Storing Knob and Button Settings to Memory WriteCalling Up Memory Press Memory button to select the memory to be called upConnecting the VGA-3 and the GFC-50 Using the GFC-50 to Operate the VGA-3How to Call Up the VGA-3’s Memories Using the GFC-50 Switching Memories With the GFC-50Press the VGA-3’s Write 1 once more Storing Writing to the VGA-3’s Memories Using the GFC-50Control Using an External Foot Switch or Pedal Tuner Pitch Setting Making the System Settings System SetupTuner Level Setting Start the System SetupFoot SW FS1/FS2 Setting NS Threshold SettingEXP Pedal Mode Setting EXP Pedal Hold SettingSystem Setup Chart Finishing the System Setup Midi Omni Mode SettingWhen Restoring All Settings to Their Factory Settings Restoring the Factory SettingsHold down Write while you switch on the Power switch Additional DataPress Write two times Trouble with the Sound TroubleshootingOther Problems Block Diagram/Effect Connection Procedure Midi Implementation Chart VGA-3 V-GUITAR Amplifier SpecificationsGuitar Type AMP Type EFX Delay Reverb Memory Sheet Factory SettingsMemo Avis
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