Hi,
I have the same problem with an 32PF3320.
The used Panel is a Quanta QL21HD02.
The TV has no picture, audio and backlight are OK
No Videotext and onscreen display or menu.
I also found a bad fuse F1 in the input of the T_CON board.
I replaced it.
There is still the same problem. I found no bad parts yet.
Any idea??