Re: Samsung PN51D550 unable to power on

It also should be noted that when plugged in there is no clicking noise and the logic board LED appears to go through a normal system test and then settle into a 1 per second steady blink.

My guess is I have to do some reset or I have another bad board (the one with all the inputs that the power on sensor wiring runs through). I see no popped caps or any other anomalies.

Re: Samsung PN51D550 unable to power on

OK finally found some time to work this a little further and get back to the boards.

I watched the video and had a dead logic board was the answer. A new power board did not power up the logic board LED light and there was nothing getting through the logic board according to the youtube video Samsung has up and was linked here.

So now I have a blinking LED on the logic board (once every second with a click every few minutes) and still the set won't power on. When I select the power on I get no change in LED or...

Re: Samsung PN51D550 unable to power on

OK I have a Samsung PN51D550 that is dead to the world. I had the blinking green LEDs and changed out the X board and it powered back up. Fast forward a month and boom goes the dynamite we are unable to power up again.

Pulled the back and this time no green light on the control board just a single click on the power board. Saw a cheapie on ebay and threw that on and no difference so it is not the power board(most likely).

I am willing to throw another X and a new Y at this if needed or trash it as multiple failures...

Re: New Members - please post your introductions here

Hello