iMac 21.5" Black Screen Diagnostic LEDs All Green

Question

iMac Intel 21.5" EMC 2428

Model A1311 / Mid 2011 / 2.5 & 2.7 GHz Core i5 or 2.8 GHz Core i7 Processor

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Corbin Titus @corbintitu79939

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Gönderildi: 4 Oca 2021

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iMac 21.5" Black Screen Diagnostic LEDs All Green

Hey guys!

Recently bought an imac to repair and flip, just replaced the logic board, but upon turning the machine on and hearing the chime, the screen remains black.

I tried shining my phone on it to see if the blacklight was bad, but no luck. All 4 diagnostic LEDs on the motherboard are green and lit up.

Any ideas?

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Dan @danj İtibar: 478,9b Self employed contract worker 35 329 970 · Answer 1 · 2021-01-04T17:10:25-07:00

Dan @danj

İtibar: 478,9b

Self employed contract worker

35

329

970

Gönderildi: 4 Oca 2021

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You likely need a brighter light to see the faint image of the desktop and its icons. I use a LED flashlight and its not easy to see if you have a bright room.

My money is on the iMac Intel 21.5" EMC 2428 LED Driver Board needing repairs or the cable is not connecting (bad or damaged connectors on either the display or the logic board)