I work with Philips consumer products alot and the refurb plant where im employed. do you have the model number and the manufacture date for the TV. Alot of Philips TV's now will flash and error code. when there is a problem.Usually a single long flash means 10 a short flash 1 a short pause then it starts again. And the codes can mean something totally different if they are a different color. I know there was a service pack that had to be replaced on certain 32 flat screen TV. (Inductor,resistor, and a tansistor.)
(I hopes this helps u out, if u get model and manfacture i can sure i can find the problem). Or know someone who does (right now main projects im working on is 42 and 50 plasma, have experience in LCD,CRT,MP3,and HP printers if u have any question on these just ask.