A few channels can't be viewed, why?Please help...

[grasssu]

I'm using a pansat 2700 to receive signals from satallite 121. It worked fine before, but today there're a few channels that can't be viewed--it says "scrambled or bad channel" while most other channels are still ok. Do you know why this happened? The pansat 2700's autoroll function is still working. as I checked the keys and they're correct. Please help...

[smilingjack]

FTA goes down to FTA

[grasssu]

FTA goes down to FTA
Sorry, what does this mean? Please excuse my silly question as I'm a real newbie. I know FTA=free in the air, but don't know its exact meaning. Would appreciate it if you could give addtional explanation and solution!

[grasssu]

Please, does anybody know why?