I'm sorry to hear you've been have the problem with your TV. The forum is actually meant for North American products and customers. Unfortunately, it seems your TV is Czech, so I wouldn't have any information on it; however, I did some research, and I found the support page for this product in your country: http://www.samsung.com/cz/support/model/LE40C570J1SXXH
I'd encourage you to contact the support team there for your issue. I hope you have a good day!
-- HD Tech
we have Samsung tv type LE40C570. It has built in DVB-S2 tunner, but when we plug the cable from LNB to the TV the signal meter is at 0 and the number of false bits is 2000. Any idea what could be wrong? The Setup maybe ? Or the cable ? I dont know