"ONN": 16 models sold there, wow, and bad documents?
no model told, ONN, and stinking walmart do show them on their lame web site.
TV has many ways to connect things.
the $29 ONN shows
Bluetooth wireless streaming audio technology
1 Optical + (means TOSLINK )Fiber optical link cable
1 3.5mm phone jack AUX Connection (input)
+ 1 Line In connections (means pair of)
jacks line-out on TV pair Left/right to line-in to bar. pair.
Sanyo not samsung , ouch wrong maker told.
actual, manual found.
the TV supports them all, wired. HDMI, RCA pair, Toslink and 3.5mm phone jack out. to head phones or BAR.
in your case buy a pair of RCA cables,
3ft or longer as you need
this works for sure. if RCA on both ends . TV does.
16 sound bars ONN sold, I refuse to read all 16 manuals sorry.
no model told.