A:AnswerThis TV supports only one audio output at a time.
You can connect a Sound Bar to the 3.5 mm headphone jack or using the Digital Optical Audio output.
The Quick Setup Guide is available under the Overview section, here is the link:
https://files.bbystatic.com/tVr9lvzeNV%2FimsYVq4YlsQ%3D%3D/Quick%2BSetup%2BGuide