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I have tested LED strips and all light up. I test them with led tested an both line test out at 100v and all come on. When plugged into the power board I am getting 180 to the 1st + and 90 to the 2nd but still will not light up. I have changed out both the power board and the main board. I get flashing standby light and see image with flashlight test, yet still mo backlights Update (02/19/2021)
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Hi @green68j, Try the following: Turn off the TV if it is on and disconnect the power from the TV. Remove the back cover from the TV and disconnect the cable between the power board and the mainboard. Reconnect the power to the TV. The TV backlights should turn on full intensity and stay on. There will be no images on the screen because the mainboard is disconnected. If they turn on and stay on then there is a problem with the mainboard or the cable or cable connections between the mainboard and the power board. Check the voltages at the connector where the mainboard cable was connected to to see if they’re as per what is shown on the power board. Be safety aware as there is exposed lethal AC voltage on the power board If they blink or don’t turn on then there is a problem with the power board or the connection between the power board and the LED strips Disconnect the power from the TV and then disconnect the LED power cable from the power board. Reconnect the power to the TV and then measure the voltage at the LED power connector on the power board between each of the +VLED pins and earth. The voltage should read >220V DC. If there is this amount of voltage then there is a problem from the LED power cable to the LEDs or a faulty connection between the LED power cable and the power board
Do you know anything about good lighting? Maybe you can help me. My daughter asked me to cover her room with LED stripes and Johnny Depp posters. I found some cool posters, but as for the LED, I had a few questions. Are LED car strips suitable for indoor lighting? for example this https://ww.vont.com/product/vont-car-sma… . My neighbor said that these stripes are fine, but I doubt it. Maybe you could give me a clue how to do it? The main thing is to be able to change the color of the lighting, because the same color of lighting can get boring.
