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765 posts

Ultimate Geek


#40553 30-Aug-2009 18:06
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After discovering that in our relatively recent conversion to digital TV, the tech installed a STB that only provided for composite out (Sony X series 1080p TV).

Just had that upgraded to the S-video version.  But ...

I cannot see any improvement in image quality whatsoever - still get jpeg type interference pattern around text etc.

New STB has 1x composite out + 1x S-video, instead of 2x composite out on the back of the original STB. Otherwise the units look identical.

Very easy to switch between S-video and composite, and I see no difference.  Even got the tech to put the old one back to check - still no difference.

Is this smoke & mirrors trickery to appease complaints by providing an "S-video" STB ..  ie. possible that they are internally the same but with the second composite out connected to an S-video socket?

To compound things the tech then forgot to reload the forward program data - will have to get that sorted tech support tomorrow.

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Uber Geek


  #251776 30-Aug-2009 18:43
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No smoke and mirrors. S-Video is one bar above the lowest quality output of Composite... Were you expecting too much? Can defintely see a difference here on our 52 inch HD LCD between Compostite and SVideo.

Check out my LPFM Radio Station at cool

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  #251780 30-Aug-2009 19:00
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The EPG data comes from the cable modem that's connected to the STB. The DVB EIT table only transmits now and next.

If you're not seeing this try powering the cable modem and STB off and on again.


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Uber Geek


  #251821 30-Aug-2009 22:40
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jpeg blocking will not be changed by the interconnect, well only in that it will look worse as you get better interconnects...


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  #251825 30-Aug-2009 23:03
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SVideo can remove the 'dot crawl' seen via Composite connections... That's what I've seen. This is what I think DS248 is talking about.

Correct procedure for resetting modem and stb to obtain epg

Power Off Cable Modem
Power Off Set top Box
Wait 10 to 30 seconds
Power Cable Modem Back on and wait until all lights (apart from 'PC Actvity' are solid and lit)
Power up set top box
Wait for EPG to download...

EPG can take up to 5 minutes to download, depending on traffic. If you have no EPG by then repeat the process.

Check out my LPFM Radio Station at cool

765 posts

Ultimate Geek


  #251839 31-Aug-2009 00:15
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Thanks for reset info. EPG reinstated.

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