Hi guys,
if have also a 2009 iMac A1311 EMC 2308. Its not powering up.
* diagnose led 1 is on
* 12V on pin 4 is present
* after pressing power button, 12V is present on pin 11 but diagnose led 2 stays off!
* power on request signal (pin 12) has 0V after pressing the button, arround 4V before pressing it
In the manual it says its probably the PSU. But I thought the power on request signal comes from the logic board?!
Does anybody has an idea?
Thx in advance!
Greetings from germany, Ruben