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It's the function button to switch between the three functions.
Sorry, there was a problem. Please try again later.It's the the source button for optical , Bluetooth or auxiliary .Best to leave it on optical.
Sorry, there was a problem. Please try again later.I pressed the f button now no sound comes back on my control
Sorry, there was a problem. Please try again later.The "F" on the remote control for the LG - 2.1-Channel Soundbar System with Wireless Subwoofer and Digital Amplifier - Black, Model # SH3K changes the input source for the Soundbar...^IFV
Sorry, there was a problem. Please try again later.The "F" on the remote changes the input sources. Here's the manual for any other questions you might have. http://www.lg.com/us/lgecs.downloadFile.ldwf?DOC_ID=20150173152187&what=MANUAL&fromSystem=LG.COM&fileId=FYbK2dt4artpDoc0VfZA&ORIGINAL_NAME_b1_a1=LAS464B.DUSALLB_WEB_1801.pdf
Sorry, there was a problem. Please try again later.Front sound bar
Sorry, there was a problem. Please try again later.Function
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