How To Troubleshoot Apollo or Volt Hardware

When troubleshooting an issue with a UA interface, it is good to rule out any possible software factors.
These tests help to validate if any issue is related to the hardware itself.
 

How to troubleshoot Apollo hardware in Standalone mode

1. Disconnect Apollo from the host computer
2. Perform an Apollo Hardware Reset and power OFF the device
3. Connect input devices (Mic, Line, Hi-Z)
4. Connect output devices (Monitors, Headphones)
5. Do not re-connect the data cable
6. Power on Apollo. Set I/O levels using Apollo's physical controls (PREAMP, MONITOR, HP, +48v if needed)
7. Verify audio functionality and fidelity

Notes

• Bus powered models such as Apollo Solo TB3 & Arrow may not be used in Standalone mode.
  You can perform a hardware reset, and test with your computer in a logged out state, or the UAD Software uninstalled.
• Apollo 16 and Apollo x16 models do not have PREAMP or HP controls.

How to troubleshoot first generation Volt hardware in Standalone mode

Note - this does not apply to Volt Gen 2 or Volt MAX

1. Disconnect USB-C from Volt
2. Connect power to the Volt using the included 5VDC power cable or power adapter
3. For Volt 876, follow the Volt 876 Factory Reset, Volt desktop Interfaces can skip this step.
4. Connect input devices (Mic, Line, Instrument)
5. Connect output devices (Monitors, Headphones)
6. Do not re-connect the data cable
7. Power on Volt. Set I/O levels using Volt’s physical controls (GAIN, MONITOR, HP)
8. Verify audio functionality and fidelity

How to troubleshoot Volt Gen2 or Volt Max hardware

Reset Volt Gen 2 or Volt Max hardware to Factory Default

Volt Gen2 and Volt Max require a host connection to a computer to pass audio.
Use the following procedure to reset your Volt to default values:

1. Power off the Volt unit by unplugging the USB port(s).

2. Press and hold both TONE and 48V buttons and plug in the USB port(s) to power the

unit.

3. Wait for the backlit text above all buttons to flash four times, then release the buttons.

'Connect Host' will display on the Smart Display until a connection to a computer, iOS, or Android is detected.

If the Volt is connected to a computer, open UAD Console, and create a new UAD Console session 
(File -> New) to test the inputs in a clean state. Any DAW or other audio software should be closed.

If on iOS or Android, you can skip that step.

Connect input devices (Mic, Line, Hi-Z)

1. Connect output devices (Monitors, Headphones)
2. Power on Volt. Set I/O levels using Volt's physical controls (Input, Speaker Volume, HP, +48v if needed)
3. Verify audio functionality and fidelity

Notes

• Volt 4, 476, and 476p models can be powered using the included 5VDC power supply unit.
• Volt 876 has an IEC mains power inlet.
• Volt 4 Gen2 and Volt 4 Max and Volt 4P Max have a 5V DC USB C power inlet compatible with USB chargers. 15W is sufficient.
• All other Volt models can be powered using the included 5VDC cable connected to a charger rated at 2.0A or higher.  It is important to power Volt Desktop interfaces when troubleshooting, to rule out insufficient bus power issues.

For more information, read the Volt Specifications.