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Topic # 109274 17-Sep-2012 11:58
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Hi all,  a while back ( 12 months ) i brought myself ( from cables direct ) a couple of 15 mtr component cables to run from my entertainment cabinet to the TV in the bedroom. I have noticed that for some reason i cant get a clear picture.
The picture is very watachable but when headlines or finer text is shown this is all distorted slightly which makes it quite annoying to watch.

I have also run 1 single 15 mtr HDMI cable over the same distance which runs crystal clear.

I have put up with this issue purely because i have been too lazy to sort it out, but i have now had my orders to sort it.

Any ideas what could be causing distortion in the picture?

Would i need a booster of some kind?

Have read many different forums where others have run the same lenghts or longer and dont have issues.

Cable is run up the wall in a cable run, through the cieling space and back down the wall to the TV which is wall mounted.

When we built our house 4 years ago i put a couple of lengths of marley rain guttering in the cieling space to use as cable runs. This sits in the middle of roof space which would make it 3 ft above any power cable that is run, so wouldnt have thought i would be getting interference.

any ideas would be most appreciated.

Regards
Sheldon


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  Reply # 687044 17-Sep-2012 12:03
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What is spitting out the component video signal that you are sending to the bedroom?
What size TV is the one in the bedroom?

I don't think a booster/amp will make any difference as it's more likely that the device that you are sending the component video signal from isn't putting out a very high resolution anyway.




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  Reply # 687053 17-Sep-2012 12:10
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Have you tried the picture on short cables on component to verify that it's the cable run causing it?

 
 
 
 




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  Reply # 687067 17-Sep-2012 12:28
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Sorry Should have added more info...

I have a Dish tv S7090 which is run via HDMI to the 42in Phillips tv in lounge,
I have attached 1 of my 15mtr component cables to this so i can see this unit on the bedroom tv ( 42in Sony)

I have a panasonic dvd recoder which is run to the lounge Tv via HDMI
I have attached the 2nd of my 15mtr component cables to this so i can see this unit on the bedroom tv ( 42in Sony)

I also have a Dishtv aerialBox Ultra T1050PVR in the same cabinet run via HDMI to the bedroom. Runs perfectly.

I have tried unplugging the HDMI cables, have tried swapping the Component cables.

When i move the units closer to the tv and use the short 1mtr cable they are fine, so this tells me it is a cable problem,  but i find it odd to have 2 cables with the same issue at the same time.

Sheldon

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  Reply # 687097 17-Sep-2012 13:15
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sheldybro: Sorry Should have added more info...

I have a Dish tv S7090 which is run via HDMI to the 42in Phillips tv in lounge,
I have attached 1 of my 15mtr component cables to this so i can see this unit on the bedroom tv ( 42in Sony)

I have a panasonic dvd recoder which is run to the lounge Tv via HDMI
I have attached the 2nd of my 15mtr component cables to this so i can see this unit on the bedroom tv ( 42in Sony)

I also have a Dishtv aerialBox Ultra T1050PVR in the same cabinet run via HDMI to the bedroom. Runs perfectly.

I have tried unplugging the HDMI cables, have tried swapping the Component cables.

When i move the units closer to the tv and use the short 1mtr cable they are fine, so this tells me it is a cable problem,  but i find it odd to have 2 cables with the same issue at the same time.

Sheldon


15m is definitely pushing it for Component Video.  You would need very high quality cables to make it this far with minimal distortion, I doubt you are going to be able to get a perfect picture at that distance on component video.

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  Reply # 687122 17-Sep-2012 14:09
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15m on decent RG59 shouldnt be an issue, but I have always found ground loop issues when taking analog baseband video around the place, which thankfully HDMI being differential is immune to.

There are boxes available with cable equalization to help with things like this but they are more targetted at the pro's so you will be paying for that.




Richard rich.ms

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