Chosen Solution

Lg TV turns on then goes black the audio works .

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Hi @lollalitta Does this occur on all signal input types or only on the one input or input type e.g. co-ax, HDMI, AV etc? If on all input types here’s an image taken from the service manual for the TV showing the fault symptoms triage chart and also the No video/Normal audio troubleshooting flowchart.

(click on image to enlarge for better viewing). Hopefully this is a start to finding the problem