HI, everyone needing a little help I have a 70 inc tv that has the turning on and back off issue. changed the main board no luck, checking the power supply and JP819 is only showing 4v i have 12.90 standby voltage can i assume that the power supply needs replacing. any help will be greatly appreciated.
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Samsung un70nu6900 power supply issue
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Re: Samsung un70nu6900 power supply issue
Well, it means the power supply is working, or you also purchased a non-working board, or you do not have a working panel.
Now try to connect it back to the motherboard, but disconnect the cables that go to the panel and check it will turn on from the remote control.
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Re: Samsung un70nu6900 power supply issue
yes, 12.91 at the jumper in the image you sent but not at pin 8 in the plug that go to the main board, and when I do the cables, it turns on with remote and back of with in a second unless I unplug the main power cable to the main board then it will stay on.
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Re: Samsung un70nu6900 power supply issue
Yes
Here is a video that can help determine the malfunction (and all the malfunctions of these models are panels).
https://www.youtube.com/watch?v=atNmhu7HMj0
https://www.youtube.com/watch?v=zGAVbMQrSekLast edited by lotas; 10-13-2022, 05:05 PM.
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