Hey Guys
I currently have an iMac 21.5" 4K Late 2019.
The iMac will not turn on.
Diagnostic LED # 1 lights up when the Mac is powered.
There are no fans running.
Power supply is fine.
Someone an idea?
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What transpired before you opened the system? Was it working and stopped after doing something?
Have you taken the logic board fully out to inspect it for visible damage?
I suspect its time to pull out the schematics and board view drawings to trace out the power rails.
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yes, I turned on the system,
I used the last one and turned it off normally,
when I turned it on the next day, it did not turn on,
when I plug power only the 1st led light up,
I did not see any damaged parts on the motherboard.
I couldn't find schematics and brd
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