While working on a 2011 iMac which shows no power, I stumbled across this website with a ton of service manuals for various computers. Among them is a huge list of official Apple Service manuals from 2010 on back. Thought I would share as this could be a valuable resource for future projects. 
http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-apple
On a side-note, I never have figured out why the iMac I was targeting doesn't power up. The trickle voltage from the PSU is working, and diagnostic LED 1 lights up accordingly, but no signs of life other than that. Any ideas on how to proceed with that are much appreciated, though probably should try not to sidetrack the thread too far.
(EDIT: If anyone happens to have any ideas, I went ahead and made a separate thread for that over on the iMac forum: https://forums.macrumors.com/threads/mid-2011-imac-with-no-power.2128578/)
http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-apple
On a side-note, I never have figured out why the iMac I was targeting doesn't power up. The trickle voltage from the PSU is working, and diagnostic LED 1 lights up accordingly, but no signs of life other than that. Any ideas on how to proceed with that are much appreciated, though probably should try not to sidetrack the thread too far.
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