scan-s2 tool with yavdr

[sami8519]

Hi,

I am really struggling to make manual scan using scan-s2 tool and yavdr. My DVB card tuners are recognized and I have installed the scan-s2 tool in the path /usr/local/bin. When I run the command scan-s2 -a 0 astra_scan-s2.conf always tuning failed.
I used this option to locate the lnb position in a diseqc: scan-s2 -a 0 -s(S) 2 astra_scan.conf but no luck as well. Anybody help me please!!!

>>> tune to: 12577:hC23M5O25S1:S0.0W:27500:
DVB-S IF freq is 1977000
WARNING: >>> tuning failed!!!
>>> tune to: 12577:hC23M5O25S1:S0.0W:27500: (tuning failed)
DVB-S IF freq is 1977000
WARNING: >>> tuning failed!!!
ERROR: initial tuning failed
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