No power, iMac is dead!
I've got a 21.5" iMac that will not power on, there is no sign of life (no fans starting up etc). I've taken it apart and have noticed that only one of the diagnostic leds lights up but when the power button is pressed the led goes off.
So far I've re-seated the PSU, motherboard, tried disconnecting everything bar the power button from the motherboard, bypassing the power button, resetting the SMC and Pram but nothing seems to work.
I've been in touch with the guys at Apple and they have told me to try a new PSU first then if that doesn't work try a new motherboard. As you may well know this is a rather expensive suggestion, so what I ask is, has anyone else had the same problem and what was the outcome?
Is this a good question?