I have a Philips 50PF9431D/37 Plasma , when I turn it on I have sound and can change channels but I have no display .. it looks like the set is turned off... anyone had a display go blank ... any ideas as to the cause???
my set has no warrenty and no extended service plan.... I'm on my own .... thanks for all replys...

Check your connections, cables, and re-do the installation/setup.