Desktop iMac purchased 16 months ago won't power on
My iMac (purchased in February 2021) won't power on. I received the following diagnosis from a local repair shop -
"I’m suspecting that it’s got faulty main logic board.
Built in LED diagnostics only light up to LED #2 – it only flickers by pressing power button and will not power on the system.
Got same result after swapping out with power supply. The cost to repair is approximately $850."
Does this seem like a reasonable diagnosis?