9 replies to this topic

[ruttle]

I get very fine diagonal lines running through the tv screen if I select HDMI on the tv. I have a hdmi cable from the dvd player to my tv , and I also have AV cables from my DVD player to my tv, and the lines only go if I select the AV option on the tv. My setup is.....1/. foxtel cable to SD foxtel decoder,  2/. SCART from foxtel decoder to SCART input on DVD player, 3/. HDMI(& AV cable from DVD player to HDTV. any ideas as this is driving me nuts!

[Tazzy2Heads]

Why do you need the AV CABLES from the DVD to the TV ?Isn't that duplicating the HDMI cable which should have AUDIO and VIDEO through it Digitally if it is working ok.Disconnect the AV LEADS while watching via the HDMI input on the tv and see what happens if you haven't already tried that.
Cheers Tazzy

[ruttle]

Tried both HDMI & AV cables individually Tazzy, it was a last resort to go back to AV cables but the fine diagonal lines with HDMI cables were too annoying    cheers    ruttle

[Tazzy2Heads]

Its a process of elimination,you have to see if the lines are interference from something local in the system or from the outside world via the antenna or antenna cable.
Get the lines happening and pull out the antenna flylead from the wall socket and see what happens .Are the lines moving across the screen ? It may be FM Radio interference getting in some where. Are you close to any strong FM Radio towers?
Are the lines there when you are watching FTA tv using the tv tuner or only when the DVD is playing ?Try disconnecting the external AV leads between your gear one at a time and see what happens.Do you have another HDMI cable you can try ?

[Ron12]

First off, if you've connected the Foxtel box to the DVD player then maybe it's a DVD recorder.

Secondly, what are you watching when this happens?  Is it a bought or rented DVD, a program from a Foxtel channel live off the air, or a Foxtel program that was recorded on the DVD recorder and you're playing it back?

Some Foxtel programs, mainly Main Event and pay per view programs, have copy protection that makes VCRs and DVD players go funny when playing back recorded program.  This should not affect programs watched live through the VCR or DVD player, except that it sometimes does.  So one possibility is that the DVD player/recorder is picking up copy protection and adding these vertical lines to the HDMI signal. But that may not be it.

You could try the following:

1) On the Foxtel box, try switching the SCART plug between the TV OUT and VCR sockets.

2) On the Foxtel box, go into active -> Settings -> Advanced settings -> Video settings (or similar) and make sure that the output type is set to composite (or similar).

3) On the TV, while seeing these fine diagonal lines, press the button to see program info.  If it says (amongst other things) 60Hz or 30Hz then this is the problem - it should say 50Hz.  This is the DVD player/recorder's fault, see the next step.

4) On the DVD player/recorder, see if you can set the output resolution for the HDMI output to different rates (e.g. 576i, 576p, 1080i) and see if that helps.  Also, make sure the frame rate is set to 50 or 25Hz, not 30 or 60Hz.

Edited by Ron12, 12 June 2013 - 04:59 PM.

[ruttle]

HI Ron12,  The problem occurs when I watch tv via the foxtel channels. DVDs are good & recorded playback is also good. If I change to watching tv via the digital channels, the programs(pictures) are good. I will try your recommendations out & let you know. ruttle

[ruttle]

to ron12, on the dvd player, changed video format with HDMI to 576i/480i(was 1080i) and working great!!.can't find a frame rate change on the dvd player but probably don't have to!   many thanks ron.

[Ron12]

That's great that it worked with 576i/480i.

Not sure why 1080i didn't work.

[jsmith]

Ron12, on 13 June 2013 - 11:16 PM, said:

That's great that it worked with 576i/480i.

Not sure why 1080i didn't work.

What type of HDMI cable are you using... an old one? High speed?

BTW, this area is for digital radio... being DAB+.

JSmith

Edited by jsmith, 14 June 2013 - 01:46 PM.

[ruttle]

maybe spoken too soon!  very fine diagonal lines back this afternoon.  tried resetting output resolution for the HDMI output to different rates (e.g. 576i, 576p, 1080i but no effect. makes me think now it may be an outside interference!    ruttle