Poor Picture quality

mrm1 · 25-01-2004, 17:00

Any one else getting major picture break up in the Swindon Area tonight ?

Bifta · 25-01-2004, 17:39

It's probably the work of the Wookie Hole Witch!

25-01-2004, 18:01

Quote:

Originally Posted by mrm1

Any one else getting major picture break up in the Swindon Area tonight ?

Any particular channels or all?

**Chris** · 25-01-2004, 18:44

We've been getting regular picture freezing and half-second blackouts for the last fortnight, seems to be on all channels ... unfortunately by the time I sit down in front of the TV in the evening it's usually after 8pm and CS is closed! Of course I've forgotten by the morning...

25-01-2004, 18:54

Record it happening then you have proof for a visiting tech. It has two main causes, the box overheating, or the levels getting to your box are pants.
If the box doesn't get adequate airflow around it then the heat cannot escape, a box in a cabinet will get very hot.
The tech can only sort out a poor levels issue.

iadom · 25-01-2004, 19:10

What are adequate power levels, PPUB? th'eng was at my house yesterday ( paying his debts ) and happened to mention that the power levels on my STB seemed a little low... reading is, Return power 40dBmV. The 2000 series box is very reliable but the 1000 series has shown "tuning parameters corrupt" for over 18 months. It does have a tendency to freeze when using the EPG, needing a reboot to clear, but otherwise the picture is fine.

25-01-2004, 19:19

Quote:

Originally Posted by iadom

What are adequate power levels, PPUB? th'eng was at my house yesterday ( paying his debts ) and happened to mention that the power levels on my STB seemed a little low... reading is, Return power 40dBmV. The 2000 series box is very reliable but the 1000 series has shown "tuning parameters corrupt" for over 18 months. It does have a tendency to freeze when using the EPG, needing a reboot to clear, but otherwise the picture is fine.

The return power is exactly that, the power your STB is sending back to its UBR. The return power is not really a good estimate of what your forward path levels are. You would need to measure them with a suitable level meter really.
Are you getting this info from the Engineering menus ( I don't really get to play with Bromley boxes)? If so then :-
[Official mode] YOU CAN RENDER YOU BOX USELESS BY MESSING ABOUT IN THE ENGINEERING MENUS. YOU WILL BE CHARGED FOR SOMEONE TO FIX IT FOR YOU. [end Official mode]

Id be looking at what the box thinks of the level. From memory I cant remember if the Bromley box gives a SNR value but that would be a better guide than return power.

By the way mate, thats a crap coloured rose. Mines far better. From the right side o'pennines.

EDIT : Kos eye carnt spel.

iadom · 25-01-2004, 19:24

SNR is 32.6.dB, getting this info by using the Pageup/down-Blue buttons.

To quote the Oldham Tinkers in a song called Owdham Edge, "and now wi *** t'Yorkshires line, a' can't see nowt past thee're but grime.

25-01-2004, 19:29

Quote:

Originally Posted by iadom

SNR is 32.6.dB, getting this info by using the Pageup/down-Blue buttons.

To quote the Oldham Tinkers in a song called Owdham Edge, "and now wi *** t'Yorkshires line, a' can't see nowt past thee're but grime.

That SNR is only relevant to the mux which the channel you are currently tuned to is on. There are approx 26 or so different muxes.

Typical engineer then!! Owing money.

We built t'pennines to keep you thieving lot out.

mrm1 · 25-01-2004, 19:39

Its finally cleared itself. no idea what the problem was, but it was on vitually all channels, some worse than others. All ok now though.