Issue tunner dm 800 hd

[max246]

I got a dm 800 hd clone and it was working fine for over a year, the fan was doing some horrible noise so I have bought another one and then replaced it.

After few days I couldn't watch anymore some channels but some of them I can!

From Dmesg I read:
[4294767.932000] unknown fec code: 0
[4294768.762000] unknown fec code: 0
[4294769.209000] unknown fec code: 0
[4294770.463000] unknown fec code: 0
[4294774.580000] unknown fec code: 0
[4294776.141000] unknown fec code: 0
[4294777.641000] unknown fec code: 0
[4294779.142000] unknown fec code: 0
[4294823.088000] unknown fec code: 0
[4294824.588000] unknown fec code: 0
[4294826.088000] unknown fec code: 0
[4294832.847000] unknown fec code: 0
[4294832.964000] unknown fec code: 0


and from the screen I read Service not found (SID not found in PAT) or tune failed. I have updated the channel list so everything is fine.

The Viaaccess card works perfectly and the .......................... that I am using on the dm500 everything works, same cable.

I think the tuner is broken but I am not sure, how can I check it?

[inahat]

Probably worth rescanning the satellite if you can still watch some channels, maybe satellites.xml was corrupted.
Or perhaps the recent bad weather has knocked your dish a bit