On Tue, Jan 27, 2009 at 10:14 PM, Manu Abraham <abraham.manu@xxxxxxxxx> wrote:
Alex Betis wrote:> What are the symptoms of burned demodulator? How can someone know if its
>> 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.
>>
> 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.
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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