Just a quick note for the few owners of Samsung FP-T5084X/XAA (a.k.a. Samsung FPT5084) : the power supply in your TV has a known series of bad capacitors leading to a dead TV.
We could confirm that after we've had several units brought in for service over the course of the past month and they all had the same symptom - a totally dead TV with a very slight whining to be heard from the back (I guess not everyone might be able to hear it).
The FPT5084X/XAA would not respond to power on command from neither the standard power button nor the remote. They'd all just be totally dead.
My first thought was for a bad main board, but it turned out the same old power supply issue. In this case it was coming from power board BN44-00175A as shown below.
Here's the Samsung FP-T5084X/XAA without the back cover (click to enlarge):
And here are two of the problematic capacitors:
Given this is a Samsung plasma I'd expect problems with the Y-Main and buffer boards before anything, but in this case apparently not.
Here is a link to our store where you can get the replacement capacitors and possibly other kits and repair services for the Samsung FP-T5084X/XAA.