I am trying to repair a Vizio TV for a friend, about half a year ago i replaced its mainboard/tcon board as the PSU was not getting the PWR/BL signal from it. and all voltages looked good (got backlight when manually jumping the PSU)

Well it stopped working again, was told they had sound but no image. I got it and i cant even get the device to get sound. the power LED comes on and fades away. I have 3.3v~ on both the PWR and the BL pins, 5.1v on the 5v rails and 11.9v on the 12v rails. However at the time i had no voltage to the LED's

Replaced the power supply, same...

Re: New Members - please post your introductions here

Hello, Im Jasper, aka JJJACER, I have been working on computers and electronics since i was 16, (17years ago), I love this forum for all its useful resources and hope to contribute along with getting my own questions answered.