View Full Version : High pitched whine on EXT1
Total newbie to the techie side of sound and vision but..........
Recently bought Philips LX8000SA home cinema dvd and speakers.
Setup pretty easy - 5 speakers, subwoofer and TV to dvd (phono) connection.
V happy - good sound.
One week later the W/S TV arrived and I replaced the scart and the phono connections to the new TV (also Philips as was the last one)
Now however, as I cycle through the input sources to the dvd (EXT1, EXT2, SVID and AV), I get a high pitched whine when lingering on EXT1. This did not happen on the previous telly and is stopped by pressing DISC source, or by pulling the TV phonos
Is this in the wrong forum? :?~:-?~:???:
29-12-2003, 06:20 PM
Welcome to AV Talk, nodz. :thumbup:
This may be in the wrong forum, but before I move it perhaps we could try and pin down whether it is a cable problem, a TV problem or your LX8000SA, and then move it to the most appropriate forum. :?~:-?~:???:
It sounds like your problem may possibly be with the new W/S TV. Can you give us some more details about which model TV you now have. I've never owned a Philips TV myself, but someone else here may have had the same model as you and come across the same problem. :nod:
Also, when you say you replaced the scart and phono connections, are you using the same cables as before, plugged into similar sockets on the new TV? Or have you changed things? :?~:-?~:???:
When you say you get a high-pitched whine, is it there in the background when you are listening to TV sound through the system and how loud is it? I assume that you select EXT1 to play TV stereo sound through the system. If you plug the TV phonos into another input on the LX8000SA (EXT2 / AUX???) does the whine move to that input instead? :?~:-?~:???:
29-12-2003, 11:37 PM
Good advice above.
Also, let us know exactly which type of cable you are connecting to where. It sounds to me like you may have the phono leads in in the wrong sockets somewhere ;)~;-)~:wink:.
02-01-2004, 06:12 PM
You can get a feedback whine depending on your configuration of the scart leads. If the TV has several scarts connected, the feedback noise can occur. I would connect the DVD direct to to the TV via scart and connect the video via scart to the DVD (if 2nd socket is available on the DVD player). Do not connect the video player direct to the TV via scart. This may well eliminate the whine if you have multiple scarts to the TV. Let me know what happens. :)~:-)~:smile:
Thanks for you help!
It IS a feedback problem apparently! (So says the audio visual repair man)
The TV model is a Philips 28PW6517 and has 2 scart sockets and twin phono out.
The man 'in the know' said that there was feedback because both the TV phono AND the DVD scart were carrying sound.
His solution was to ditch the DVD->TV scart, and replace it with a DVD composite video -> TV scart adapter.
This solved the feedback, but the picture quality was poor IMO.
Yes I'm using the same cables as on the previous Philips
The feedback ceases if I turn on the DVD unit
There is no feedback if I use DVD-AUXin instead of DVD-TVin
I do not have a 2nd scart on the DVD
I do have a vid in the TV's 2nd scart, although the feedback continues regardless of whether this is connected or disconnected.
Incidentally, when the vid play is pressed, the TV flicks to EXT2 and sound can be heard but no picture.
Am I just unlucky or should I bin AV technology and stick to board games for entertainment?!
06-02-2004, 10:23 AM
Are you using a separate amp/surround processor, or just the sound from the TV?
06-02-2004, 11:33 AM
You can get a Scart with RGB cables only in it, this would give you the best picture and no sound feedback.
Supra makes one, look here (http://www.shopfox.co.uk/hi-fi/1307.htm).
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