The Prowise ProLine+ has lost all sound, what can I do about this?

Check the following settings in the Prowise Central menu:
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Is the volume set at a value higher than '0'?
Is there a physical connection with earphones on the Prowise ProLine+? 
- If so, the audio is muted since it is playing through the earphones.
- In the settings/audio/output menu, select internal (only audio output via the touchscreen) or both (audio output through earphones and the touchscreen).
- Or remove the earphones (2) so the sound is no longer muted.
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Check whether the output is set to External.
- If so, the speakers are muted because the sound is set to play though an external speaker.
- Select 'internal' or 'both' to activate the speakers on the Prowise ProLine+. 

Check whether the Mute feature is activated.
- If so, the speakers will be muted.
- Disable the mute feature to let the sound play through the speakers of the Prowise ProLine+.

In case the internal PC module is used as source, check:
- The Windows volume settings
- Device that is playing (in the Window audio settings)
      Prowise (Intel Display Audio)
- Audio drivers.
      Update the Audio drivers for the Prowise Intel Display Audio device in the Windows device manager.

In case an external PC is used as source, check:
- The external cabling of the external PC to the Prowise ProLine+.
- Whether the Windows volume settings are correct.

If the steps listed above do not lead to the desired result, please contact the Prowise Customer Service. (service@prowise.com) 

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