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Imac 27 A1419 820-3299a with diag #2 Led flashing.
Hi! I have this imac with diagnostic LED 1 on and LED 2 blinking. I tested all the S5 rails present and working well. I couldn't find any evident short lines. I tested the board with and without ram with no different results. When led 2 flashes, all rails (S4, S0) are high at that moment and...- Scultetus
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- Forum: Macbook Logic Board Repair Questions