Troubleshooting

1.The VC-4 is not powering up when con- nected to the amp

➢Is the power on the Valvetronix amp switched on?

➢Is the VC-4 properly connected to the Val- vetronix amp?

➢Is the correct cable being used?

Please check that all connections are properly made and that the contacts on the VOX BUS jack on the rear of the VC-4 and your amp are kept clean.

2.Effects cannot be switched on/off with the VC-4

➢Is the VC-4 in Individual mode?

➢Are the MOD, DELAY or REVERB sections on the Valvetronix amp off?

➢Are the MOD, DELAY or REVERB sections on the Valvetronix amp bypassed?

➢Is the correct cable being used?

Please check the effect settings on the Valvetronix amp and make sure the VC-4 is switched to Individ- ual Mode.

3.Effect(s) cannot be heard even if they are switched on by the VC-4

➢Are the effects on the Valvetronix amp bypassed?

Please check the settings on the Valvetronix amp. If bypass is “on”, none of MOD, DELAY, REVERB effects will be heard.

4.The pedal on the VC-4 does not control the effect being selected

➢Is the pedal set properly?

➢Is an external volume pedal being used?

In order to get the Expression pedal to function as an expression controller, keep the TAP TEMPO button pressed for more than 1 second until the Expression pedal LED lights up on the VC-4.

Also, check that the EX CTL switch, the setting of the MOD section and/or the setting of the PEDAL section on the Valvetronix amp are set properly.

5. The external volume pedal does not work

➢Is the connection properly made?

➢Is the correct cable being used?

➢Is the cable broken?

➢Is the external volume pedal compatible with the VC-4?

Please check the connection and cable. If the exter- nal volume pedal allows for a minimum setting, please set the value as low as possible.

6.The calibration needs to be adjusted on the built-in pedal and/or an external volume pedal

In case you aren’t getting the maximum or mini- mum effect when the pedal or an external volume pedal is used, please re-calibrate the VC-4 via the following steps.

TIP! When you calibrate the pedal, use your hand because using your foot may not enable an accurate adjustment.

a)Re-Calibrating the VC-4 using the built-in pedal.

1.First, make sure that the power to the Valvetronix amp is off.

2.Then, turn on the power to the Valvetronix amp while holding down footswitch 3 and the TAP TEMPO button on the VC-4. Doing this will

cause the Bank Display to show “ ” for a sec- ond and then “ ”.

3.Slowly “open” the pedal until it is fully “open” as shown in the diagram below.

4.Press the TAP TEMPO switch on the VC-4. This will set the minimum Expression/Volume setting and the Bank display will show “ ”. (as shown in the diagram below)

5.Slowly press the Expression/Volume pedal down until it is fully closed as shown below.

TIP! Pressing the FX ON-OFF/CHANNEL button on the VC-4 will terminate the adjust- ment.

10

TIP! When hooking up an external volume pedal to the VC-4 via the volume jack on the VC-4, the built in pedal automatically reverts to Expression only and volume is controlled by the external pedal only.

6.Press the TAP TEMPO switch on the VC-4. The Bank Display will show “ ” and the VC-4 will return to normal operation.

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Vox manual Troubleshooting, VC-4 is not powering up when con- nected to the amp, External volume pedal does not work
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VC-4 specifications

The Vox VC-4 is a state-of-the-art musical instrument amplifier that has gained significant popularity among musicians and audio enthusiasts. Renowned for its innovative features and cutting-edge technology, the VC-4 delivers exceptional sound quality and versatility.

One of the standout characteristics of the Vox VC-4 is its advanced digital modeling technology. This amplifier utilizes sophisticated algorithms to replicate the sound of traditional tube amplifiers, producing rich harmonics and dynamic response. Musicians can achieve a wide range of tones, from clean, crisp sounds to warm, distorted textures. This flexibility makes the VC-4 a perfect choice for guitarists, bassists, and even keyboard players.

The VC-4 is equipped with multiple onboard effects that further enhance its capabilities. These effects include delay, reverb, chorus, and more, allowing users to shape their sound without the need for additional pedals or external processing. The intuitive user interface makes it easy to access and tweak these effects in real time, enabling performers to adapt their sound on the fly.

In terms of connectivity, the Vox VC-4 boasts a wealth of options. It features line output for direct connection to mixers or recording equipment, as well as an auxiliary input for jamming along with external devices. Furthermore, the built-in Bluetooth capability allows for wireless streaming of music, making it an excellent tool for practice and performance alike.

Another notable feature of the VC-4 is its compact and lightweight design, which makes it highly portable. Musicians can easily transport this amplifier to gigs, rehearsals, or studio sessions without the burden of heavy equipment. Despite its small size, the VC-4 does not compromise on sound quality, delivering impressive volume and clarity.

The Vox VC-4 is also designed with durability in mind, featuring robust construction that can withstand the rigors of regular use. Its user-friendly controls and layout ensure that musicians of all levels can quickly acclimate to the amplifier and make the most of its features.

In conclusion, the Vox VC-4 stands out as an exceptional amplifier, offering a blend of classic tone, modern technology, and user-centric design. Whether you're a seasoned professional or a budding musician, the VC-4 provides the tools needed to take your sound to the next level, making it a worthy addition to any musician's gear collection.
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