I have removed the led panel, plugged in the tv and powered up the backlights to determine which backlight strips are defective. I replaced the strips that were suspect and now all strips light up for a few seconds and then the top and bottom strips on both sides (4 strips) go out. After a few minutes the tv then shuts down. I have tested each strip individually with a led tester and each strip shows all led's working. I replaced the power supply board and the led driver board with used boards that I believe are good boards. Any ideas or suggestions will be very much appreciated. Thanks in advance.
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Re: Vizio D65u-D2 backlight issues
I have had backlight strips that tested 'good' but when connected to PSU they go out. My recommendations to you are:
(1) Check the connections on the strips and ensure they are secure by re-soldering them.
(2) Replace the original LED strips with new strips, so that all the strips would have been replaced. -
Re: Vizio D65u-D2 backlight issues
I forgot to mention......I swapped the connector from the working led strip with the non working led strip and the non working led strip then lights up and the working led strip does not work. It's like the wire harness is defective but I tried another wire harness and I get the same results. Any ideas? Thanks.Comment
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Re: Vizio D65u-D2 backlight issues
Just wanted to share this with hopes of helping someone else. The backlight issues I was having actually turned out to be the mainboard. I hope this might save someone some time in their diagnoses.
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Re: Vizio D65u-D2 backlight issues
Thanks for the follow up.Willing to help but I'm no expert.Comment
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