signal problems and no lock?

manxbhoy

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i have 4 sky digi boxes in my house. all of them worked ok till recently, when a neighbour installed a freeview aerial above in on same scaffold pole. i then had picture freezing problems on 3/4 of the boxes. followed by "no signal received" alerts now on 3/4. i checked the boxes on the one cable drop that functioned, all are ok. thinking that this could be a faulty lnb, i replaced it with a new one. hooked up all the cables and still no signal received on 3/4 boxes. thinking that this may be a cable drop problem i replaced one of the faulty cables with a new "sattelite link-white" cable from b&q. same no signal reported. running out of ideas now. could a misallignment of the dish/lnb be the problem, would it allow one cable drop signal through and not the other 3. checked lnb power was on and that the same transponder reading were showing on each box. but on the 3 others there is no lock and thenetwork id reads as either 0000 or 0002, transport stream reads 0000 or 07d4 any ideas would be appreciated before i replace all the cables b4 i order a dish reallignment with a independant engineer...thanks

satelliteman

Welcome,

From what you said about the aerial being fitted, first thing I'd do is have a dish re-alignment done properly with a meter. It's possible your man has knocked it. Take it from there after

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Here's what I Posted in reply "elsewhere":

If it is actually a Sky Dish, then the LNB is positively located and can't be "misaligned" - unless the entire arm has been bent.

You should, however, check that the Skew is set properly (Usually at "3").

I think it is odds on that the Dish has been knocked out of alignment, but the fact that one feed works suggests it is only a small amount out and is "on the margin".

Therefore, as long as you take care, you should be able to correct this yourself.

If there is someone who can help you, get them to observe the Signal/Quality Bars and (without blocking the signal!) you gently push the LNB arm first one way, then the other, then up, then down.

You should be able to deduce from that which way to move the Dish - and remember it will be a matter of millimetres only.