Hello from Finland.
I have Philips TV 29PT8702 chassis: MD2.12E which whines a lot. It has also odd phenomenon which looks like ringing or ghost. Few vertical bars on the left and the right part of picture.
I have varnished the L.O.T. and linearity coiletc. but no help at all. The whining comes (I'm quite sure) from L.O.T. I took few pictures if you like to take a look of the phenomenon.
I remember that I have seen this phenomenon in Barco monitor and it was caused by bad voltage. I checked the voltages from PWR but they were quite OK (if I haven't missed one or two).
Thanks a L.O.T!