This looks to be cross posted and if you follow this forum my bet is you'll get a reply to arrange for service. I have yet to find any technician offer more than that in this forum. Those other forums you posted to may offer advice to the TV tech (which you are since you are replacing boards.)
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.