TV input wont fine-tuning?
Answers: From your ask it is unclear whether the remote does not own a button for the function you are looking for, or if the button is ineffective.
If it doesn't have a button, and it is the manufacturer's remote for the TV, I would be deeply surprised. The button might be labeled "Source" rather than "Input". Or you might hold to access a "Menu" button to choose the input source from an On Screen Menu.
If the button is ineffective, it might be that your set does not recognize that other inputs are connected. Try powering on the input device first, and THEN powering on the TV. Some TVs (stupidly designed ones) simply check the inputs on power up, and if there is no signal detected at the input, the TV assumes nil is connected.
Get a universal remote control for the tv and see if that works.
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