Chosen Solution
I have replaced T-Con board, Main board, and all cables and the problem still has not resolved itself. What should I try next? Pictures:
Conor Dolan you need to check your boards to ensure they have the proper output/input etc. Just replacing boards can be expensive and may not resolve any issues. If you replaced the T-con Board and the Main board then the only thing left for now is the power board. If that does not work you have a bad panel. Update (04/07/2018) Start by checking the use on your T-con board for power. With your TV on etc. use a multimeter set for VDC place the positive probe on either point of the fuse and the negative probe on some metal on the chassis. Let us know what the voltage is. You also want to measure the voltage on your power supply connector CNL802. You should have something like ~250V so be careful you don’t get zapped :-)
Conor the oldturkey is right. The t-con needs the right input voltage to output correctly. Never dismiss the power board just because the tv turns on. P.s i am guessing you have tested analogue seperate to digital inputs.
Don’t forget the tcon is getting power from the mainboard not directly from the power supply.
