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A bit OT: My panasonic is making a high pitched noise
I have a panasonic BT-LH170w that I bought second hand today.
When I came home with it ( and I handled it gently ) I heard a high pitched summing noise – very loud and irritating. ( reminds me of the noise that CRTs used to make late in their lifespan before they were ready to be scrapped… )
What can cause this sound? Someone said something about 50 or 60 hrz? And suggested that Id switch between the two – but found nothing in the menu…..
The picture is great, but Its hopeless to use it now..
Any ideas anyone?