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In ManualsFile, you can ask and answer questions about your issues. We - volunteers - or other people who own the product will help you.
You should also read the documentation for your own answers. Download documentation for this product here.
Also, if I find the SEK-4500 is not an improvement after setting it up, will it hurt to unplug it and go back to my regular tv settings?
I have 2 other HDMI besides ARC and MHL which SEK-4500 ate NOT to go in.
My other two HDMI are DVI and STB. Which one can I plug my SEK-4500 into?
If you have any questions about this product, please ask here.