Good night, a Samsung LCD TV Samsung LN32C450E1 came to me. This tv has sound but it's dark, and from the source I have 24 volts. and the tubes all turn on very evenly but their lighting is poor , control welds and tensions, and at a time when I was measuring voltages on the inverter plate, the lights lit up a lot, almost as it should be and then it goes off, at the source I measured capacitors and components, in the inverter I measured some components but I really don't know what to do, thank you very much if you can give me a hand

change the inverter card or remove the protection from the ic that controls the lamp ... measure the ballast transformers that have the same impedance and if the lamp is worn the voltage is altered giving the order to activate the protection