Got this TV, tried to turn on, the screen flashing less than a second then went black, then power off. But when press any button, it show picture same short time then black again. This is obvious the backlight issues.
LG LCD TV uses master and slave inverters, this symptom looks like the one part of the inverters working but other part didn't.
Open the back cover and saw the connectors between upper and lower inverters for the mater inverters were fired, really bad look.
So I cut and soldered out/clean the connectors, only keep the 4 wires (for the inverter feed back), and connected them with 4 proper size wires.
Powered on, backlight came back and TV works good. Hope this can help some one has same issue.
LG LCD TV uses master and slave inverters, this symptom looks like the one part of the inverters working but other part didn't.
Open the back cover and saw the connectors between upper and lower inverters for the mater inverters were fired, really bad look.
So I cut and soldered out/clean the connectors, only keep the 4 wires (for the inverter feed back), and connected them with 4 proper size wires.
Powered on, backlight came back and TV works good. Hope this can help some one has same issue.
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