Hi @jack1994 ,
Unfortunately your TV's HDMI ports are configured as In ports only, not bothway.
The only option for audio out from your TV is to use the TV's stereo (2.1) Audio Out RCA connectors.
Therefore you will not be able to have true surround sound emanating from your soundbar but you can have either stereo sound or "simulated" surround sound using 2 speakers only.
The TV has the option of playing 5.1 multichannel content over two speakers.
This is from the User guide:
"TruSurround XT is a patented SRS technology that solves the problem of playing 5.1 multichannel content over two speakers. TruSurround delivers a compelling, virtual surround sound experience through any two-speaker playback system, including internal television speakers. It is fully compatible with all multichannel formats"
To get stereo (or TruSurround XT) audio from the TV to the soundbar you will need to connect from the TV's RCA audio out sockets to the soundbar's Aux RCA input sockets using a RCA stereo audio cable (example only).
Alternatively you can connect from the TV's RCA audio out sockets to the soundbar's Audio In 3.5mm socket using a RCA stereo audio cable with a 3.5mm plug (example only)
(click on images to enlarge for better viewing)
Then you will have to set the TV speaker setting to OFF.
Go to Menu > Sound > TV Speaker > Off
To enable surround sound effect.
Go to Menu > Sound > SRS TS XT > On
You will also have to set the soundbar's Input to Aux by pressing the Aux button on the soundbar's remote control
(if using the alternative 2 x RCA to 3.5mm stereo cable option press Audio In on the soundbar's remote control)