My iMac doesnt start - Black screen

iMac 27" EMC2546

Hello!

I have a big problem with my iMac.

I can´t start the iMac - there is no gong, fan or something else. Always black screen.

These things i have already done:

- SMC reset

- cleaning the fan

- change the power supply

- change the battery on the logic board

Now i dont have any ideas, what i can do.

I don´t hav a garranty for the iMac - it is from 2013.

If anybody have a idea, please let me know!

kindest regards

Klaus

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Commentaires:

Did you solve your problem? I have the same problem except that I can hear the gong.

par

Tell us what the diagnostic LEDS on the logic board are telling you.

par

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