No model numbers means no exact answer.
Most likely the only audio outputs on the TV are optical and HDMI-ARC.
If the sound bar doesn't have either then you would need to convert the optical audio output to analog and connect it to the aux input on the soundbar (if it has one).
You can also connect a bluetooth transmitter to the optical out of the TV and pair the soundbar with it.
Check the TV manual on how to use the optical output.