So I have a LG Soundbar LAS550H, the wireless subwoofer is not turning on, I opened it up, there was a T5AL250VP fuse in the board which burnt as it was all black, I changed it but still the subwoofer wont power on. I want to know if I can add any other subwoofer by using some receiver or HDMI splitter kind of thing or the other option is to get a cheap soundbar like Yamaha YAS-109 and add any good car subwoofer as this soundbar has an option to add subwoofer using RCA cable. Thank you.