I acquired an lcd tv for free that didn't have a picture. But while the tv is on in a dark room you can see that the tv is clearly on.
After my first visual inspection on the power supply unit I came across a round fuse with a black mark on both sides of it and I checked It and it was open. So I moved on to the rectifier diodes nearby and pulled a leg on all four of them. They all checked out good. The next thing I pulled was a pair of MosFets that apon testing them via transistor tester were bad. I checked the surrounding resistors tied to the gate and they read fine.
I did a lot of reading and I'm unsure why they went bad. Did one just go bad taking the other? I bought two more but am nervous install them. (New fuse already installed.)
Should I troubleshoot further in some ones opinion? Or when should I stop troubleshooting?
After my first visual inspection on the power supply unit I came across a round fuse with a black mark on both sides of it and I checked It and it was open. So I moved on to the rectifier diodes nearby and pulled a leg on all four of them. They all checked out good. The next thing I pulled was a pair of MosFets that apon testing them via transistor tester were bad. I checked the surrounding resistors tied to the gate and they read fine.
I did a lot of reading and I'm unsure why they went bad. Did one just go bad taking the other? I bought two more but am nervous install them. (New fuse already installed.)
Should I troubleshoot further in some ones opinion? Or when should I stop troubleshooting?