Hi new to this forum. Also not very well versed in modern electronic circuits but well versed vintage vacuum tube electronics I'm owner/operator of www.nosvalves.com I appreciate any insight you folks my have on this TV problem.
Anyway I've owned this TV for 6, 7 or 8 years? It started losing back light LED strips until the picture was getting dark over about 40% of the screen. I checked online and found a full set of led strips for $82 shipped so thought why not give it a whirl. Watched a couple YouTube how to videos. Ended up not being to hard but it was tedious.. the bad part is once done I fired it up all the led lit so I put it back together hung it on the wall hooked all the sources.. it again was obvious the led strips all lit up but it never boots to the "V" Vizio logo. It seems the LCD is inoperable now. I took it back down checked and triple checked all the connections.
So I went to checking all the voltages on cable sockets of the power supply board. See 3 photos for results. 24Vs are 2+ volts high, 12V are slightly up. Tcon volts not present. Some voltage present that are not specified on the board.
Any clue what might be the problem?
Thanks for any help!
Craig
Anyway I've owned this TV for 6, 7 or 8 years? It started losing back light LED strips until the picture was getting dark over about 40% of the screen. I checked online and found a full set of led strips for $82 shipped so thought why not give it a whirl. Watched a couple YouTube how to videos. Ended up not being to hard but it was tedious.. the bad part is once done I fired it up all the led lit so I put it back together hung it on the wall hooked all the sources.. it again was obvious the led strips all lit up but it never boots to the "V" Vizio logo. It seems the LCD is inoperable now. I took it back down checked and triple checked all the connections.
So I went to checking all the voltages on cable sockets of the power supply board. See 3 photos for results. 24Vs are 2+ volts high, 12V are slightly up. Tcon volts not present. Some voltage present that are not specified on the board.
Any clue what might be the problem?
Thanks for any help!
Craig
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