[vdr] AW: Re: burned DVB-s

["Bläser, Lars" <LBlaeser@hofheim.de>]

> Von: Roberto Deza [mailto:rdeza@unav.es]
> Gesendet am: Freitag, 18. Oktober 2002 11:15
> An: vdr@linuxtv.org
> Betreff: [vdr] Re: burned DVB-s
...
> I'm sorry by your card but I don't have any hope that this problem can
> have any recovery, if your card is really damaged :-( ; the Composite 
> Video goes out directly from the AV711x and any semiconductor is very 
> easy to broken.
> 
> Many times, the reason of this type of problems is the lack 
> of a "common 
> ground" between the to be interconnected devices. The "common 
> ground" is 
> a simple wire that *permanently* interconect the metal chasis of all 
> devices (in your case, the PC and your TV) and is not need 
> that this wire 
> will be connected to a real Ground.
> 
> This common ground precaution is extensive to every device 
> that need to 
> be connected to the PC as, printers, scaners, STBs (perhaps with some 
> BDM, JTAG, etc interface), etc. Regrettably, I've heard and 
> know myself
> many of this problems.
> 
> IMHO, this *security measures* are not too know and commented, as it 
> should be :-((.

no imho this is a layout problem of the board, there should be a curcuitry that prevents this



-- 
Info:
To unsubscribe send a mail to listar@linuxtv.org with "unsubscribe vdr" as subject.