You do have the service manual? Without it a TV tech may be lost.
i have a samsung LN-T5365FX/XAA. the picture is out sound is on, CAN see the menu when i shine light on screen, power board is new, main board replaced, i turn on tv and backlights come on for just a second and then out...i think i tested inverters correctly?...by checking the middle pins on the black boxes of the inverter boards ( there are four) they registered between 1.5 to 2.2 on the left two and
3.5 to 4.2 on the right two....any ideas on what i may be doing wrong or not checking?..i'd like to get this sucker working!.....thanks for input.