Hi, my LG 50PJ350 plasma TV has been temperamental. Sometimes it picks up signal, sometimes it doesn't. When it picks up signal, everything is working fine. But when it says no signal (due to the tv is faulty or there's really no signal I don't know), obviously I can't watch any channel, the strange thing is when I try to watch DVD or play games from game console (Wii), there's no sound but perfect picture. So I've plugged audio cables to external speakers and I get sound.
Any idea what's wrong with the TV and what need to be repaired? I've bought this second hand, though it's new in box, but I won't get any warranty since I don't have a receipt
Would it be worth it to repair the TV?
Any idea what's wrong with the TV and what need to be repaired? I've bought this second hand, though it's new in box, but I won't get any warranty since I don't have a receipt

Would it be worth it to repair the TV?