I have problem with my 32PFL7862D/10

If I am starting a FULL search, then it finds only 1 digital channel. Its on 610MHz freq. Then if I want to add some new freq (which are for other channels) via CHANNEL INSTALLATION / DIGITAL RECEPTION TEST and it don`t find enything!

What i must to do to find other channels.

P.S. also i use CAMmodule with Card