Whine from DVD

Umbongo · Post by **Umbongo** » Mon Oct 09, 2006 8:35 pm

I got a DVD, screen and new stereo fitted last week. When playing a DVD there is some sound interference and a whine that increases as the revs rise.

I'm sure I've had that problem in an old car years ago but I can't remember the cause.

Any ideas how to fix it?

The toys were fitted professionally but they couldn't make it go away.

ChrisEm · Post by **ChrisEm** » Mon Oct 09, 2006 8:48 pm

You need a suppresor. Can be bought cheaply from halfrauds or similar, normally fit inline on a feed wire cuts down on interference signals from electronicky bits and bobs. Either that try a different supply from an alternative source.

Bongopatrol · Post by **Bongopatrol** » Mon Oct 09, 2006 8:51 pm

Hi Umbongo, ChrisEm is right about the suppresor you could also fit it to the alternator.

CarAudio_James · Post by **CarAudio_James** » Thu Oct 12, 2006 11:51 am

What you have is an earth loop,

a surpressor may help cover it up, but you could well be getting interference into some of your cabling from poor conections, somthing shorting to earth that should not be getting an earth

have a look on here,

http://www.talkaudio.co.uk/vbb/showthre ... whine+cure

ChrisEm · Post by **ChrisEm** » Thu Oct 12, 2006 12:14 pm

Splendid answer that one!

Umbongo · Post by **Umbongo** » Thu Oct 12, 2006 8:01 pm

Thanks for the suggestions guys

All my stuff is powered from the leisure battery, does that make a difference?

CarAudio_James · Post by **CarAudio_James** » Thu Oct 12, 2006 8:10 pm

Doesn't make any difference, just shows you where to look for possible faults

Look into the equipment and check the earthing as a starting point