philips tp2784 picture goes black
I have a Philips TP2784 which has had an interesting problem since we bought it many years ago. The picture is fine for an arbitrary amount of time, but then suddenly goes black. However, if you turn the volume up or down, then you can see the correct picture inside the volume letters and bars, which are usually yellow. It is as if the TV gets confused about what is picture and what is supposed to be masked.
The only way to fix this problem is to turn the TV off for about 10 seconds, then turn it back on. *Usually* the picture is then fine.
The TV started behaving this way shortly after we bought it. We had the Philips repair man out several times, and he finally replaced the main processor. The TV behaved itself until it was well out of warranty. It then occasionally blacked out. It has suddenly taken a turn for the worse and is blacking out about ten to fifteen times a day.