Hi there!
I'm quite new to electronics, and Dave's video inspired me to try to fix my old LCD monitor.
I've tried a few things but now I'm stuck, so I figured I'll ask here
It has an external power supply, and it seems to function. I measure the voltage it says to give out, and no caps looks damaged in it.
When I plug it in to the monitor the backlight (fluorescent tubes) only lights up for about 1/3 of a second accompanied with a fizzing sound. Then it goes black.
I can't see any physical damage to the tubes or any blown caps.
Any ideas what might be wrong, or how I should go about finding out?