I got this as an anniversary gift from my company. Sony model DVD-
NS75H. I searched this group and found nothing on this particular
model. Too much trouble to return, so either I repair or trash. Since
day one when playing a DVD, the picture slowly alternates between
normal brightness, to dark (not black), back to normal, to bright, and
so on. I don't have much experience with DVD players, but was hoping
someone in this group could tell me what they think is happening and
where to start looking for a possible fix. Thankyou as always.