On Wed, 09 Jun 2021 13:21:39 +0100, "Dave Plowman (News)"
wrote:

snip

Since it's very easy to get at from the roof terrace, I've dug out the
motor instructions and compass etc and am going to start from the
beginning.

I'm pretty certain the mounting is solid and plumb and hasn't moved.

So are you saying it has previously worked ok with the same dish / LMB
/ mount (and you don't believe it's moved since)?

If so, whilst it might not hurt to check the settings (if it's easy to
get at as you say) then it might be worth / also considering other
aspects, like (guessing) the polarizer? Could it be possible the TV
uses it differently to the previous setup?

Is this all on a single coax (I've only really had hands on with
systems with separate polarizers (/ shotgun / FO8 cable etc) but the
principles should be the same)?

Cheers, T i m