Yes, your remote has a square box in center and another small one inside that one which is the ok button, larger outside one is up, down, left and right.
I have confirmed it is how I explained before so here in page 22 you will see how to change the input source: Click here for the manual
To change the input device:
Press the INPUT button on
the remote. The input menu is displayed.
Use the Up/Down Arrow buttons or the
INPUT button on the remote to highlight the input
you wish to view and press OK.
The selected input is displayed.
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