I've scoured all the usual sources online, and can't find a schematic for this A1407 (27" Thunderbolt display).  it has the Lite-On power supply (not the Flex-whatever-it-was).
Board PN is 614-0505 / PA-3251-31
There's no bulged caps, fuse is OK (pretty sure there's just the one?!), bridge is ok, none of the usual magic pixie escape smells. I picked this up off a chick who told me it 'just stopped working' with no spitz-n-sparkin, smoke, etc.
Are there common failure points on these? Like the pair of MOSFETS under HS2&3? Those look like the switches for the transformer anyhow (I was hesitating to tear into it until I asked around here!).
Thanks!
		
		
	
	
		 
	
		 
	
	
		
			
		
		
	
				
			Board PN is 614-0505 / PA-3251-31
There's no bulged caps, fuse is OK (pretty sure there's just the one?!), bridge is ok, none of the usual magic pixie escape smells. I picked this up off a chick who told me it 'just stopped working' with no spitz-n-sparkin, smoke, etc.
Are there common failure points on these? Like the pair of MOSFETS under HS2&3? Those look like the switches for the transformer anyhow (I was hesitating to tear into it until I asked around here!).
Thanks!