[linux-dvb] DiSEqC trouble with TT S-1500

Doru Marin Doru.Marin at Deuromedia.ro
Wed Feb 13 15:01:19 CET 2008


Hi,

Can you explain how you select those 4 positions ? DiSEqC commands or 
tone/voltage changes ?
Also can you determine the input type of those positions (Hi/Low, H/V, 
etc) ? A scenario to see when and why that happens, would be more useful.

P. van Gaans wrote:
> Hi,
>
> I've got a Technotrend S-1500 (if it matters: I use it with Kaffeine 
> 0.8.3). It works mostly fine, but there's a strange problem. With my 
> Spaun 4/1 DiSEqC switch (they cost approx 25-40 euro), I can only switch 
> without trouble to position 1 and 2. If I tune directly to position 3 it 
> won't lock.
>
> However, if I first tune to a channel on position 1 or 2 and try a 
> channel on position 3 after that, it will work. Position 4 however is 
> completely unreachable.
>
> On a standalone receiver, there's no trouble with the same cable.
>
> Now Spaun is a really expensive and respected brand. So their switches 
> possibly work in a different way, because a cheap Maximum 4/1 switch 
> works perfectly with the S-1500. Position 1, 2, 3 and 4 all work 
> perfectly. I also did some "dry testing" indoors and it looks like a 7 
> euro Satconn 4/1 switch would also work fine, but a 17 euro Axing SPU 
> 41-02 probably won't.
>
> I'm guessing this could be solved in stv0299.c but I'm not much of an 
> expert. I took a look at the code but I'm not really sure what to do.
>
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