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AVS › AVS Forum › Display Devices › Rear Projection Units › Samsung HL61A750 LED DLP Purple screen flashing problem
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Samsung HL61A750 LED DLP Purple screen flashing problem

post #1 of 3
Thread Starter 
I have had this TV for a little over Two years now and it just started to have this issue, the screen will flash a purple color on and off all the time when you go to the guide in satalite tv. it will do it sometimes when your watching tv but not as bad. It seems to be worse on HD channels, you turn the TV off and back on it will be ok until you go to the TV guide.
it will even do this when I have a blue ray player turned on and it in the main menue screen, Netflix, Pandora, you tube screen.
post #2 of 3
you might try a firmware upgrade. 1005.3 If this doesn't fix your problem, sound like you have an issue with your main pcb.
post #3 of 3
Thread Starter 
I do have the latest software, but I may have figured it out. In talking to a friend of mine at work who is into audio video equipment he said it sounds heat related. I pulled off the back cover and found three fans and they all seem to be working. I did notice that the larger fan blows air through a large heat sink. Well lets say this heat sink was plugged up so bad that there was no way it going to cool. So I blew it out and cleaned up all of the fan and the rest of the insides and i have not seen any more purple flashing.
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AVS › AVS Forum › Display Devices › Rear Projection Units › Samsung HL61A750 LED DLP Purple screen flashing problem