Lost all Hd channel,need help

[zhangyukai]

My ultra HD box lost all hd channel from yesterday. There was an power transformer shut down in our community, and it caused my house lost power for a day, I was watching the HD channel when the power down.
Today when I start the Tv there is no signal for hd channel, The Sd channel are still working.
The strength of signal is only 40% for 82 and 129 now. Other sats are fine. So how can I know whether the hd module is down or not. Anyway to test it? Any suggestion?

Thank you

[benfica]

maybe ur module got fried....:(

[Nostradamus]

no maybe about it

[BanHammer]

if the tuner did get fried, you wouldn't get anything.

check channel 9421. it's on 110w and doesn't need and internet connection.

[Nostradamus]

that really depends on what is gone in the tuner, if it is just something specific to the turbo 8psk then HD is gone and SD is there but yes genrally when they pop they are totally dead

[zhangyukai]

What do you meaning 'when they pop they are totally dead'
My sd channel are good, the singal of 91 is strong. Do you think I need to replace the tuner. Any way to test it?

[Nostradamus]

well if you are pointed at DN as well then read post #4

[patsfan87]

I would also check your disq if you're using one, very easy to blow a port on those suckers.With r6 disconnected at stb switch the ports of 91 and 82 at the disq,then reconnect and see if you now have a signal.

[Fastcompany]

Most likely the tuner. Happened to me... SD picture no HD. Changed the tuner, all was well again. They are cheap to buy.