[linux-dvb] Technotrend Budget S2-3200 Digital artefacts on HDchannels

Alex Betis alex.betis at gmail.com
Tue Jan 27 21:40:00 CET 2009


On Tue, Jan 27, 2009 at 10:14 PM, Manu Abraham <abraham.manu at gmail.com>wrote:

> Alex Betis wrote:
> >> It won't. All you will manage to do is burn your demodulator, if you
> happen
> >> to
> >> be that lucky one, with that change. At least a few people have burned
> >> demodulators by now, from what i do see.
> >>
> > What are the symptoms of burned demodulator? How can someone know if its
> > still ok?
>
> The first time i saw it was that the DVB-S2 demod was returning no
> carrier. After some time it was stating timing error for DVB-S as
> well. Finally it all ended up with demodulator I2C ACK failure, and
> eventually a frozen machine after a week (my test boxes run throughout)
>
> Touching the demodulator, i happened to have almost a burned finger.
> I wanted to know whether this was a single case. During the
> development phase, i did mention it to Julian about this, since he
> was the very first person to test for the stb0899 driver. He
> jovially laughed about a burned demodulator and a finger, left his
> machine on after i did some tests on it. Eventually he too had the
> same results. Finally we changed cards.

What frequency did you use to burn it?

I didn't see anyone here on the list that reported a hardware failure so
far.

By the way, Igor returned the chip frequency for 27.5 channels to 99MHz and
raised it a bit for higher SR channels, so there is no danger for majority
of the users.


>
> >
> > Does your mantis driver work ok with such channels?
>
> I don't have such channels. Tested with a max of 27.5 MSPS
>
> Regards,
> Manu
>
>
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