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A2116 / 2019 / 3.6 GHz quad-core i3, 3.0 GHz 6-core i5, or 3.2 GHz 6-core i7 processor. Released March 19, 2019.

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iMac won`t power on.

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?

Answered! View the answer I have this problem too

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Chosen Solution

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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Nezif Gürkan will be eternally grateful.
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