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hi there, i have a samsung sp-50l7hx and i recently moved home but since i moved my tv there has been a whinning sound coming from the tv it sounds like a puppy whine, i turned the tv off last week and it would not come back on, it tried to start about 3 times then i had a triangle with a small bulb symbol on the bottom left side of the triangle, my booklet states i needed a new lamp so i got one and have fitted it today and i still have the same problem, the tv whines and tries to start 2-3 times then i get the triangle and bulb symbols again, it is a new bulb so im a bit confused as to my problem with the tv, do i have somthing else wrong or have i been sent a duff lamp?

thanks in advance steve.