At present, I have 4 dead or dying-to-the-point-of-being-useless LCD monitors that I'd like to diagnose and fix.
They're all 28"
1920x1200 monitors, of various ages. I seem to go through one every 2 or 3 years, so the oldest one is about 8 years old, but has been sitting in a closet for 5 or so years gathering dust after it broke, and like that there. The newest one died several hours back. (And if that's not enough, I've got a few dozen similarly "worn out" ~19" screens to haul off to recycling for a client by next Friday, so it seems like this would be a highly worthwhile thing to figure out, and soon.)
They've all died from age, not being dropped or getting wet, and the symptoms are different in each case. (Which I can provide if that's helpful or there's no tool or general process to diagnosing a monitor failure.)
Anyway, this is a little out of my area of expertise, so I figured I'd ask for help here. Does anyone know how to diagnose a faulting component on an LCD monitor, and/or what tools I'd buy to do so? Through Google, I've found a bunch of places I can go to order replacement components, once I figure out which ones are faulty, but nothing really useful on how to identify what parts I need.
I think I'm looking for advice on what to look at once I crack the cases open, or an electrical tester of some sort, or any diagnostic tests I can do, but, as I say, I'm not sure, and a little out of my depth. Can anyone here offer me some advice or a push in the right direction?