Chosen Solution
Hello, as of yesterday my LG 43uk6470plc TV has an issue. I read some similar posts but none that match the exact issue I have. After turning it on, there is a fade out to black from left to right in about one second, just long enough to show the channel number in the upper right cornerThe backlight is still on, no image can be seen with a flashlightAudio still worksThe red LED on the bottom blinks a few times on start-up I’ve left the power off over night which didn’t make a difference. Today I popped off the back and I’m not seeing much out of the ordinary (no blown capacitors) but there is some yellow substance which I assume is glue or something but I’m not sure Does this description ring any bells for anyone? I’m not very experienced with hardware issues myself, any suggestions are appreciated!
@rvdl you do want to find out the exact number of blinks for the power led. That is an error code that will help with the troubleshooting. So, count it. This could be a mainboard issue. Measure the voltages going from the connectors on the mainboard and check against the legend printed on the board for that connector. Make sure that you have all the right voltages. Let us know what you find out.
hard to tell from the picture angle, but C201, C202, & C203 look like they might be suspect bad. The tops should look like C205. They look a little convex instead of flat to concave.
