[vdr] Rotor power: Was (Re: Re: cool down of dvb 1.3)

[Beppe <vdr@beep.mine.nu>]

Hi Reinhard,

Reinhard Walter Buchner wrote:
> Hi Johannes,
>
>
> > i know this has been discussed before (heat "problem" of 1.3)
> > but another idea: would i help to feed the lnb with an external power
> > supply? so the dvbs doesn't need to provide the power?
>
> I don't think this would help, because the tuner *doesn't* supply
> LNB power ;o)) There are two chips on the DVB, which provide
> LNB power. One is a bucking step-up converter (28V) and the
> other is the LNBP chip, which finally supplies the LNB with
> power. Both of these chips can easily handle the LNB power
> needs (max 500mA as per specs). The boost convertor can
> handle 3A cont (6A peak) and the LNBP can sink 900mA
> continious duty.
Has this chips some short circuit protection?

I read the list and saw that the Rotor HH-100 is working with DVB-S.
So i bougth one. In a hurry i set it up(the sun was on its way down, and 
it start to snow and i was like a child on Christmas Eve :p )
When i start my machin it didn't move :/ finding out that i put
the LNB cable in the reciver's input on the rotor :/

Do you still use your HH-100?
What Rev do you have on your card?

If i manage to get a new card rev2,1 or 2,2, i still have guarantee on 
it. Is it safe to use it with out any LNB power amplifier and
have the right connection on it :o)


::Beppe



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