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Hello. Can you grab the part number from the power board, please? Are the inverters separate from this board, or are they integrated?
Just got back to workin on stuff, give me 10 minutes and I'll put this unit on the bench and get rdy to proceed. Hope you're online.
2300KPG101A-F = number printed on pcb, 2722 171 00695 v30100 = number on sticker
OK with the TV on we need to see if you have 24V going into the inverters. Usually there's a wiring harness with several 24V wires and several grounds. Check the 24V and let's see if the main board and power supply are doing their jobs. Sorry for the delayed response, by the way... this week got crazy.