I have a 50lbrq45 I have torn it down completley.
First symptoms red standby light would change to blue no audio or video wouldn't turn off. After tearing it down checking voltages everywhere I baked the main board at 400 degrees for 9 mins. The did the flashlight test and found I had picture and audio but no backlight. One thing I noticed is I could turn the set off after I baked the board. I am not 100 percent baking the board did anything and maybe I turned off before the usual shutdown occurs. I only have pic and sound when I unplug the wire lead for the led,s otherwise they all flash and the unit shuts down. I individually plugged in each light strip and two seem to flash brighter then two others. I am at a dead end
First symptoms red standby light would change to blue no audio or video wouldn't turn off. After tearing it down checking voltages everywhere I baked the main board at 400 degrees for 9 mins. The did the flashlight test and found I had picture and audio but no backlight. One thing I noticed is I could turn the set off after I baked the board. I am not 100 percent baking the board did anything and maybe I turned off before the usual shutdown occurs. I only have pic and sound when I unplug the wire lead for the led,s otherwise they all flash and the unit shuts down. I individually plugged in each light strip and two seem to flash brighter then two others. I am at a dead end
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