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Ok so the cpu doesn't seem to be getting ppvcc_s0_cpu
Follow it back to U7310 and u7320. They both have very low readings from pins 2,1,8,5. Pin 6 is showing pp5v_s0.
But those pins go to a transistor so at pin 2 of L7310 and L7320 I should have 1.8v. But I don't.
Gonna leave it for now...
I'm lost, 5hrs down and counting here.. Determination definitely isn't the issue. Alas I have no idea why the CPU isn't working and I have no idea what to look at next. The vcore power rail exists. Being only my second ever attempt at repairing boards I obviously have a fuck load of learning...
hey mate, thanks for the reply. Confidence has gone from sky high to rock bottom here..
To answer your questions, only have thunderbolt to hdmi so can't test that. No there is no question mark folder (LCD doesn't seem to even show a backlight) and when I plug in a USB mouse it lights up for...
Hey guys, just diving in to board level laptop repairs here, I purchased a dead water damaged Macbook Air and also this Retina 13in to begin my learning quest. Macbook Air was repaired after hours and hours of watching Louis's videos which I'm absolutely stoked about! Thanks Louis! But now this...