iMac 21,5 A1311 model 2011 - problem! - YouTube
What to do when your iMac won't turn on?
What to do when your iMac won't turn on?
27" iMac suddenly won't turn on… completely dead? | MacRumors Forums
mid 2011 27" won't power up and only 1 diagnostic LED | MacRumors Forums
SOLVED: Won't Boot: How to diagnose if Logic board or PSU at fault? - iMac Intel 21.5" EMC 2428 - iFixit
iMac led's fault finding - YouTube
SOLVED: Where are the diagnostic LEDs on the iMac mid-2011 27" EMC 2429? - iMac mid-2011 27" EMC 2429 (2.7GHz i5) - iFixit
SOLVED: iMac won`t power on. Power button pressed = LED # 2 lights up briefly - iMac Intel 27" Retina 5k Display - iFixit
SOLVED: Where are the diagnostic led's on this model's logic board - iMac Intel 21.5" EMC 2389 - iFixit
iMac Intel 27" EMC 2390 LED Driver Board Replacement - iFixit Repair Guide
Diagnostic LEDs - Apple iMac 17 inch - Mac Specialist
mid-2011 imac no power--logic board? | MacRumors Forums
What to do when your iMac won't turn on?
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iMac Mid-2010 Video issues? - Apple Community
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How to find and read the Diagnostic LEDs - iFixit Repair Guide
SOLVED: iMac won't turn on - iMac Intel 27" EMC 2429 - iFixit
SOLVED: iMac wont start, only diagnostic led 1 on - iMac Intel 27" EMC 2309 and 2374 - iFixit
SOLVED: Where are the diagnostic LEDs on the iMac mid-2011 27" EMC 2429? - iMac mid-2011 27" EMC 2429 (2.7GHz i5) - iFixit
SOLVED: Won't Boot: How to diagnose if Logic board or PSU at fault? - iMac Intel 21.5" EMC 2428 - iFixit
Dead iMac Part 2: The Final Fix - YouTube
