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So if this is the schematic info on L7510, how would I get the values I should expect from the multimeter? Haha sorry I'm a total beginner. Thank you so much!
Thanks, makes sense.
Maybe I'll get a board for components, but in the meantime what values (voltage, resistance, etc) should I be getting from the 2R2 coil and the component at L7510?
Cleaned the flux off the board, and after some searching I still can't find what the Ra/Rb divider is. Would you mind explaining?
Just got some super fine multimeter probe adapters for the small chips and I'm in the process of checking the continuity of the traces in the region, will update...
Haha yeah not looking the best.
By saying I should check the traces and solder, do you mean with the multimeter or just visually to see if everything is intact?
What's the Ra/Rb divider? Tried looking it up but can't find anything on it. Thanks.
Hi! Haven't done more since my forum post. Do you mean that you have the same problem that you replaced the cap but it still reads 0.3 V? Or that you are gearing up to replace the cap?
Thank you, it's my first try with logic board stuff. Hope I eventually get it! Good luck to you too.
Thanks! Good to know about the need for short connections. Given that the 0.3 V reading was happening before I used the wires (with the cap right on the board), any ideas of where I should start testing to find the potential source of the problem?
Hello. I have a 17" 2009 Macbook Pro (logic board 820-2610 I believe). For the past few years it was having trouble starting up and then it would shut off quickly. Occasionally it would boot completely and then it would work fine for days. A few months ago it stopped starting up completely. I...