i would like to thank anyone who responds for their time.I am new to the site but have used some info to fix a few tvs. i am just learning and doing this as a hobby and to add some lcd tv's to my house
My problem is i have an lg 42lg30 lcd tv that i bought with a bad backlight problem.The backlight would go on for a second but go off and the screen did not show a usable screen.But if i disconnect the inverters from the bulbs the screen when viewed in the dark with a flashlight shows a good image. Now for the info on what i have found.First when i got the tv i could smell burnt plastic, took apart the tv found the board that holds the ccfl bulbs had a fire on the main inverter side. a bulb was broken as well. Ordered used board and replaced all ccfl bulbs with good ones. still the same problem. 24 volts going into inverters but the thing i have to ask is when checking for a short with my ohm meter i happened to test the plug where the pink and white wire go into the board and when i touched the leads to the pins it showed resistence between them. both inverters do this and i am unsure if that is correct as i would think if voltage was going in and out of the bulbs they shouldnt be showing resistence.Again thank you for any help and as i am new to all this i might not be explaining it well so if you can help and want some info please ask.