How can I turn up and down the volume on my Vizio 39 Tesla without a remote control? Please help!

[sweetbootydelight]

I lost my remote for my Vizio 39 Tesla TV and I was wondering how I could turn the volume up and down. Please help!

 

[americanaudiophile]

Without a model number can't say for sure but according to this
http/cdn.vizio.com/documents/downloads/hdtv/E390A1/UM_E390A1.pdf
There are controls on the side panel.

 

[dmansampson21]

It’s only 1 botton and it don’t give the option to turn it up or down