When I turn on the TV there is no picture and a second later I hear a click as if I have turned it off, however the green 'on' light stays illuminated. I have tried manually and with the remote. Also, when I try to turn it off, the green light stays on, but still no picture. This has happened for the past few days and I can usually get the picture to appear after a number of attempts.

SOURCE: Sampo PME-42S6 black screen

I have the exact same problem and sent an e-mail to Sampo in Taiwan today (March 3rd) with a technical explanation and description of the problem you have reported. I included information on the status of the LEDs inside the unit. My suspision is that the power distribution board has developed a fault. I am going to try to find out if a schematic is available to repair the board or if a new board can be purchased. I will provide an update when I have one. Glenn

SOURCE: TV won't power on

ya u repair ur smps power sullpy soon ,nither ur power supply gone damage

SOURCE: I have a Sony Bravia

YOU HAVE A BAD INVERTER YOU NEED TO CHECK TO SEE IF THERE IS 30 VOLTS ACROSS THE INVERTER ALSO CHECK TO SEE THAT ALL THE FUSE ARE NOT BLOWN ANOTHER ISSUE WITH THESE TV IS THE LCD ITSELF BUT 9 OUT OF 10 ITS THE INVERTER OR THE POWER SUPPLY PLEASE CHECK THE FUSE ON THE INVERTER THATS USUALLY A BIG PROBLEM