No power, No power led
Hey, today a 55 inch uhd tv rolled in my door and i proceeded with some diagnostics in my attempt to try to learn this kind of stuff. i’m very new but i want to learn hehe.
So, to my tests and findings.
I plugged in the power, tried powering on with controller and button on the tv. Nothing.
I opened it up, unplugged the power cable to the motherboard from the PSU to see if the backlight would turn on. Nothing.
I then checked the voltages of said cable compared with the stamped pinout on the board and everything is wrong. Every 5v shows 3.6v and every 12v shows 3.4v.
Now, i can replace the PSU, but are my findings a definitive PSU board issue? Also how do i go about finding the exact culprit?
Cette question est-elle utile ?