so, I've got a sony KDL40s5100, basic barebones model, the firmware is updated, the warranty is expired and I am fairly savy with electronics so I will not be calling a repairman. is anyone here familiar with television repair? I've been having difficulties with my television lately, sometimes the hdmi ports wont work or sometimes the audio drops (whether I'm using tv speakers or external audio through optical cable). sometimes it requires me to turn off the television, sometimes it requires me to completely unplug it from the outlet. if I replace the main unit board http://www.ebay.com/itm/SONY-KDL-40S...ht_1151wt_1164 will it fix these problems? technically it would be a whole different television wouldn't it?? thanks in advance to whoever helps me!