I think that unit has a 17pw26 power supply and I recently was given a 32" Technika that exhibited the same problem. I did a lot of research to try and find a fix. In the end I reseated all connectors and the tele sprung to life. Not saying this will solve your problem but we experience a lot of problems with PCs at work and reseating the connectors seems to help a lot. A modern tele is similar to a PC - motherboard, PSU and screen.
Good luck.
muttley1966
June 2010