820-2530-A - Green light but wont turn on

larossmann

Administrator
Staff member
Only 15" 2009 have that problem. 13" are unaffected by the cap plague. If 1.05v is present on C7771, you will have to start looking elsewhere.

Does PM_SLP_S4_L go up to 3.3v when you press power button? Do the rest of the power rails in the machine work? There's a lot more here than JUST PPBUS_G3H!
 

dukefawks

Administrator
Voltage on pin 5 of U6901? Is it possible to power it on in SMC bypass mode? Remove power and battery, press power button and insert AC adapter, keep holding power button for another 5 seconds. Release it and press it again.
 

Tony Tone

Member
I have a question on this one. I do not get 3.3V when I press power. But if I put into SMC bypass I get 3.3V. (On PM_SLP_S4_L)
 
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