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Model A1419 / Late 2013 / 3.2 & 3.4 GHz Core i5 or 3.5 GHz Core i7 Processor, ID iMac14,2

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Diagnostic LED flashes once, but PSU works

Essentially LED #1 flashes once, and then goes off. I’ve read a lot over it, and it seems like it would be a Power Supply issue. However, I have replaced said power supply, and been shocked by it (twice now) when trying to verify that all parts are working. I don’t have the current equipment to try and verify pin outs, as the multimeter leads have been burnt out. Now essentially I need verification that this is a fixable issue, but having no feedback when trying to diagnose this machine is becoming increasingly frustrating. So any feedback would be greatly appreciated

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I’m thinking you have a short on the main logic board and/or the GPU MXM board.

You’ll need to get your meter working so you can make measurements.

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Connor Ware 将永远感激不已
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