Poor Sky SD reception on TX-P42G10
Discussion
Folks
Picked up the above set just before xmas, hooked up to SD Sky, using its own speakers.
Find the picture on certain sky channels (Sky sports, Sky news, Sky 1 for eg) pixelates quite badly. On other channels the voice is slightly out of sync. Reverting back to CRT, all is fine?
Watching FreeSat, pic is fine, however voice is still slightly out of sync
Is this common? Any suggestions?
TIA
Picked up the above set just before xmas, hooked up to SD Sky, using its own speakers.
Find the picture on certain sky channels (Sky sports, Sky news, Sky 1 for eg) pixelates quite badly. On other channels the voice is slightly out of sync. Reverting back to CRT, all is fine?
Watching FreeSat, pic is fine, however voice is still slightly out of sync
Is this common? Any suggestions?
TIA
How have you connected the Sky box to the TV. You mention its SD Sky so I assume via SCART. If so you need to make sure the SCART output is set to RGB - its in the Picture Settings bit.
This should improve the picture.
But as said above SKY SD picture quality can vary somewhat. With you smaller CRT you would not notice as easily.
HTH
This should improve the picture.
But as said above SKY SD picture quality can vary somewhat. With you smaller CRT you would not notice as easily.
HTH
Lip sync issues can vary from box to box, believe me it is normal 
Why dosent it do it on the CRT? Well sky has a very small sync error, a plasma also has a small error due to the pic taking longer to process than the sound, add the two together and you sometimes get a noticeable error. Some boxes do this more than others same with plasmas some process the data faster than others, eventually we come across a combo of box/plasma that shows off an error.
You can often correct it by changing sky channel then changing back this re syncs the audio.
Its not a cableing issue, you cannot induce a lip sync error via a poor scart lead or the like.
Why dosent it do it on the CRT? Well sky has a very small sync error, a plasma also has a small error due to the pic taking longer to process than the sound, add the two together and you sometimes get a noticeable error. Some boxes do this more than others same with plasmas some process the data faster than others, eventually we come across a combo of box/plasma that shows off an error.You can often correct it by changing sky channel then changing back this re syncs the audio.
Its not a cableing issue, you cannot induce a lip sync error via a poor scart lead or the like.
Edited by headcase on Wednesday 20th January 22:15
Thanks for the input fellas
Sky box is connected via Scart and set to RGB already - no HDMI on my 10 year old panasonic box
Maybe pixelation isnt the correct term - i mean the pic and sound break up badly, basically unwatchable. BBC1 > Ch4 ok however
The lipsync problem on Freesat and Sky confuses me ? Presume the pic/sound breakup on Sky is dish alignment related ? Would the same cause lipsync issues?
Is there anything I can check on that front?
Sky box is connected via Scart and set to RGB already - no HDMI on my 10 year old panasonic box
Maybe pixelation isnt the correct term - i mean the pic and sound break up badly, basically unwatchable. BBC1 > Ch4 ok however
The lipsync problem on Freesat and Sky confuses me ? Presume the pic/sound breakup on Sky is dish alignment related ? Would the same cause lipsync issues?
Is there anything I can check on that front?
Intersting
We have just got the pany 46inch G15 a week ago with a standard sky box and the SD picture was great. We had some pixleation/ breakup of image on the 533 chanels more so than before changing the tv. As cornershop said making it unwatchable. It has freesat but we are not using that at the moment (apart from comparing the pic quality compared with SKy+ HD).
The above was a pain as I like the history channels the most but it also depended on the time of day as well.
Anyway we had SKy+HD box installed with multi room and the old SD box as the 2nd one. Now the picture quality on the SD chanels are slightly out of focus ie through the Sky+HD box but when we swap over to the Free sat the SD pic is perfect again, and I suspect if we swap over the SD Sky Box to the pany G15 again it will be back to great.
I think the HD+box has degraded the signal/pic.
We have contacted Sky and they are coming out to have a look on Sunday. So I will report back. At the moment its not that restfull watching SD tv (HD is perfect) as my eyes are always trying to adjust for the very slightly out of focus image. As mentioned before with the SD Skybox and the G15 tv it was great.
We have ensured the RGB is on, changed over the HDMI lead to a good quality, reset the sky+HD box but no luck. If they cant fix it then we will go back to a normal Sky SD box or + box.
We have just got the pany 46inch G15 a week ago with a standard sky box and the SD picture was great. We had some pixleation/ breakup of image on the 533 chanels more so than before changing the tv. As cornershop said making it unwatchable. It has freesat but we are not using that at the moment (apart from comparing the pic quality compared with SKy+ HD).
The above was a pain as I like the history channels the most but it also depended on the time of day as well.
Anyway we had SKy+HD box installed with multi room and the old SD box as the 2nd one. Now the picture quality on the SD chanels are slightly out of focus ie through the Sky+HD box but when we swap over to the Free sat the SD pic is perfect again, and I suspect if we swap over the SD Sky Box to the pany G15 again it will be back to great.
I think the HD+box has degraded the signal/pic.
We have contacted Sky and they are coming out to have a look on Sunday. So I will report back. At the moment its not that restfull watching SD tv (HD is perfect) as my eyes are always trying to adjust for the very slightly out of focus image. As mentioned before with the SD Skybox and the G15 tv it was great.
We have ensured the RGB is on, changed over the HDMI lead to a good quality, reset the sky+HD box but no luck. If they cant fix it then we will go back to a normal Sky SD box or + box.
Edited by superlightr on Thursday 21st January 20:51
Edited by superlightr on Thursday 21st January 20:52
Edited by superlightr on Thursday 21st January 20:53
Edited by superlightr on Thursday 21st January 20:54
Edited by superlightr on Thursday 21st January 20:55
cornershop said:
Thanks for the input fellas
Sky box is connected via Scart and set to RGB already - no HDMI on my 10 year old panasonic box
Maybe pixelation isnt the correct term - i mean the pic and sound break up badly, basically unwatchable. BBC1 > Ch4 ok however
The lipsync problem on Freesat and Sky confuses me ? Presume the pic/sound breakup on Sky is dish alignment related ? Would the same cause lipsync issues?
Is there anything I can check on that front?
Picture break up is normally caused by a poor signal from the dish, could be alignment, Faulty LNB, poor cable termination, problem with the cable, poor termination at the sky box end, also DECT cordless phones can cause a similar problem if the base is too close to the sky box. Its also possible to cause a lip sync error.Sky box is connected via Scart and set to RGB already - no HDMI on my 10 year old panasonic box
Maybe pixelation isnt the correct term - i mean the pic and sound break up badly, basically unwatchable. BBC1 > Ch4 ok however
The lipsync problem on Freesat and Sky confuses me ? Presume the pic/sound breakup on Sky is dish alignment related ? Would the same cause lipsync issues?
Is there anything I can check on that front?
But this dosent happen at all on the CRT or could this be a coinsidence that it started since you got your plasma?
Try hooking them up at the same time, connect the TV scart to the plasma and the VCR scart to the CRT, it is possible you have a main board problem on the plasma.
superlightr said:
Intersting
We have just got the pany 46inch G15 a week ago with a standard sky box and the SD picture was great. We had some pixleation/ breakup of image on the 533 chanels more so than before changing the tv. As cornershop said making it unwatchable. It has freesat but we are not using that at the moment (apart from comparing the pic quality compared with SKy+ HD).
The above was a pain as I like the history channels the most but it also depended on the time of day as well.
Anyway we had SKy+HD box installed with multi room and the old SD box as the 2nd one. Now the picture quality on the SD chanels are slightly out of focus ie through the Sky+HD box but when we swap over to the Free sat the SD pic is perfect again, and I suspect if we swap over the SD Sky Box to the pany G15 again it will be back to great.
I think the HD+box has degraded the signal/pic.
We have contacted Sky and they are coming out to have a look on Sunday. So I will report back. At the moment its not that restfull watching SD tv (HD is perfect) as my eyes are always trying to adjust for the very slightly out of focus image. As mentioned before with the SD Skybox and the G15 tv it was great.
We have ensured the RGB is on, changed over the HDMI lead to a good quality, reset the sky+HD box but no luck. If they cant fix it then we will go back to a normal Sky SD box or + box.
Stick a scart cable from the HD box to your TV. Try the SD channels on scart. Picture for standard defenition is normally better over scart than HDMI. Leave both plugged in, Switch back to HDMI for a HD channel.We have just got the pany 46inch G15 a week ago with a standard sky box and the SD picture was great. We had some pixleation/ breakup of image on the 533 chanels more so than before changing the tv. As cornershop said making it unwatchable. It has freesat but we are not using that at the moment (apart from comparing the pic quality compared with SKy+ HD).
The above was a pain as I like the history channels the most but it also depended on the time of day as well.
Anyway we had SKy+HD box installed with multi room and the old SD box as the 2nd one. Now the picture quality on the SD chanels are slightly out of focus ie through the Sky+HD box but when we swap over to the Free sat the SD pic is perfect again, and I suspect if we swap over the SD Sky Box to the pany G15 again it will be back to great.
I think the HD+box has degraded the signal/pic.
We have contacted Sky and they are coming out to have a look on Sunday. So I will report back. At the moment its not that restfull watching SD tv (HD is perfect) as my eyes are always trying to adjust for the very slightly out of focus image. As mentioned before with the SD Skybox and the G15 tv it was great.
We have ensured the RGB is on, changed over the HDMI lead to a good quality, reset the sky+HD box but no luck. If they cant fix it then we will go back to a normal Sky SD box or + box.
Edited by superlightr on Thursday 21st January 20:51
Edited by superlightr on Thursday 21st January 20:52
Edited by superlightr on Thursday 21st January 20:53
Edited by superlightr on Thursday 21st January 20:54
Edited by superlightr on Thursday 21st January 20:55
I've noticed it on most HD boxes that i've fitted, Conjecture being sky deliberetly blur the SD channels over HDMI to make the HD channels look better in comparison.
Correct end point, but the reasoning is wrong, at least as I understand it.
Fundamentally scaling is difficult, and should be avoided to the greatest extent possible. It is difficult to do well. Where it cannot be avoided, it should be done with the best available equipment, to the least extent possible and in as few steps as possible.
When you use Sky HDMI the box does some (720p IIRC) upscaling and then the TV does the rest. This is bad as the TV is amplifying an already enlarged image, including the original scaling errors.
With SCART RGB, the TV is fed the unadulterated raw data, allowing for a single scaling operation, using the original source, improving accuracy and decreasing what is in effect generational losses.
The scaler unit in the TV is almost certainly able to outclass that included in the Sky box.
Fundamentally scaling is difficult, and should be avoided to the greatest extent possible. It is difficult to do well. Where it cannot be avoided, it should be done with the best available equipment, to the least extent possible and in as few steps as possible.
When you use Sky HDMI the box does some (720p IIRC) upscaling and then the TV does the rest. This is bad as the TV is amplifying an already enlarged image, including the original scaling errors.
With SCART RGB, the TV is fed the unadulterated raw data, allowing for a single scaling operation, using the original source, improving accuracy and decreasing what is in effect generational losses.
The scaler unit in the TV is almost certainly able to outclass that included in the Sky box.
headcase said:
cornershop said:
Thanks for the input fellas
Sky box is connected via Scart and set to RGB already - no HDMI on my 10 year old panasonic box
Maybe pixelation isnt the correct term - i mean the pic and sound break up badly, basically unwatchable. BBC1 > Ch4 ok however
The lipsync problem on Freesat and Sky confuses me ? Presume the pic/sound breakup on Sky is dish alignment related ? Would the same cause lipsync issues?
Is there anything I can check on that front?
Picture break up is normally caused by a poor signal from the dish, could be alignment, Faulty LNB, poor cable termination, problem with the cable, poor termination at the sky box end, also DECT cordless phones can cause a similar problem if the base is too close to the sky box. Its also possible to cause a lip sync error.Sky box is connected via Scart and set to RGB already - no HDMI on my 10 year old panasonic box
Maybe pixelation isnt the correct term - i mean the pic and sound break up badly, basically unwatchable. BBC1 > Ch4 ok however
The lipsync problem on Freesat and Sky confuses me ? Presume the pic/sound breakup on Sky is dish alignment related ? Would the same cause lipsync issues?
Is there anything I can check on that front?
But this dosent happen at all on the CRT or could this be a coinsidence that it started since you got your plasma?
Try hooking them up at the same time, connect the TV scart to the plasma and the VCR scart to the CRT, it is possible you have a main board problem on the plasma.
Having only watched Band of Brothers on DVD, i tried Peep Show this morning - appears I have lip sync issue on DVD too! DMP- BD60 Blu Ray player connected via HDMI
Does this point to a TV set issue? The lip sync bugs me more than the picture break up!
bobthemonkey said:
Correct end point, but the reasoning is wrong, at least as I understand it.
Fundamentally scaling is difficult, and should be avoided to the greatest extent possible. It is difficult to do well. Where it cannot be avoided, it should be done with the best available equipment, to the least extent possible and in as few steps as possible.
When you use Sky HDMI the box does some (720p IIRC) upscaling and then the TV does the rest. This is bad as the TV is amplifying an already enlarged image, including the original scaling errors.
With SCART RGB, the TV is fed the unadulterated raw data, allowing for a single scaling operation, using the original source, improving accuracy and decreasing what is in effect generational losses.
The scaler unit in the TV is almost certainly able to outclass that included in the Sky box.
Also a big Thank you. This has helped a lot. We now watch SD from the scart and HD on the HDMI.Fundamentally scaling is difficult, and should be avoided to the greatest extent possible. It is difficult to do well. Where it cannot be avoided, it should be done with the best available equipment, to the least extent possible and in as few steps as possible.
When you use Sky HDMI the box does some (720p IIRC) upscaling and then the TV does the rest. This is bad as the TV is amplifying an already enlarged image, including the original scaling errors.
With SCART RGB, the TV is fed the unadulterated raw data, allowing for a single scaling operation, using the original source, improving accuracy and decreasing what is in effect generational losses.
The scaler unit in the TV is almost certainly able to outclass that included in the Sky box.
superlightr said:
bobthemonkey said:
Correct end point, but the reasoning is wrong, at least as I understand it.
Fundamentally scaling is difficult, and should be avoided to the greatest extent possible. It is difficult to do well. Where it cannot be avoided, it should be done with the best available equipment, to the least extent possible and in as few steps as possible.
When you use Sky HDMI the box does some (720p IIRC) upscaling and then the TV does the rest. This is bad as the TV is amplifying an already enlarged image, including the original scaling errors.
With SCART RGB, the TV is fed the unadulterated raw data, allowing for a single scaling operation, using the original source, improving accuracy and decreasing what is in effect generational losses.
The scaler unit in the TV is almost certainly able to outclass that included in the Sky box.
Also a big Thank you. This has helped a lot. We now watch SD from the scart and HD on the HDMI.Fundamentally scaling is difficult, and should be avoided to the greatest extent possible. It is difficult to do well. Where it cannot be avoided, it should be done with the best available equipment, to the least extent possible and in as few steps as possible.
When you use Sky HDMI the box does some (720p IIRC) upscaling and then the TV does the rest. This is bad as the TV is amplifying an already enlarged image, including the original scaling errors.
With SCART RGB, the TV is fed the unadulterated raw data, allowing for a single scaling operation, using the original source, improving accuracy and decreasing what is in effect generational losses.
The scaler unit in the TV is almost certainly able to outclass that included in the Sky box.
As with anything like this, the end user has a massive part in the equation.
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