hi guys, i botught cx520 from London and brought it to Bangladesh but having difficulties setting it up. the channels here are analogue and PAL system so i just went to analogue settings and scanned for channels. it found only 29 out of 80 and there's no sound. instead i get the usual hissing noise that we get when there is no signal. my PS3 and Blu-ray home theater works absolutely fine though. so i am wondering if i can manually fine tune it. am i doing anything wrong? what would be the ideal approach towards this? i would be forever grateful if u can help me solve this issue. thank you.