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I have another macbook pro A1502 board model 820-4924-A that is consuming 520 ma, it does not have USB activity, it does not have thunderbolt activity. I have all the rails present (from the schematic page 68)... this is the second board that I have with this problem, please help me figure it...

PM_PCH_PWROK = 3.4v PM_PCH_SYS_PWROK = 3.4v CPU_VCCST_PWRGD = 1.010v

PLT_RESET_L = 0v when I first connect it it goes to .430 ma, then it goes down to .020 ma and then it turns on again and goes to .430 but doesn´t restart anymore...

Do you get CPU VCORE (C1031)? r= 1.87V Did you check for USB activity? THE PSU GOES TO .558MA and I get no light on an external USB drive... Update: I connected an USB mouse and it does not turn on... I´m stuck here... Please help, it´s my computer, the one that I use to see all the schematics...

Do you know of some one who gives online training? You are a staff member....

If you aren´t using a 85watt original adapter you won´t get the PM_BATLOW_L. That happened to me until I changed the PSU cable to a original 85 watt. And I understand that if you don´t have that voltage you wont be able to activate the PCH. see if this can help you...

Hi, I have this board which I dont know what else to do to it, I get all_sys_pwrgd but get no chime, and no image on it. When I connect it to the magsafe 2 (original magsafe 2 85watts, no adapter 1->2) I get a green light, and then it turns orange, no fan or chime... ppbus_g3h = 12.60...

Hi, I have this 820-3115-B with this weird voltage at ppbus_g3h, can you help me troubleshoot it? I have pp3v42 = 3.48v. I don´t know where else to check, I have checked the ISL6259, no luck. I removed the fuse so I can check without hurting the system side. So where should I start? Thanks

In fact, I have two similar cases... one works fine, if I close the lid for just a couple minutes, it wakes up just fine, but if I leave it for a couple hours, it doesnt turn on again. That is a 820-4924 For the other case it works fine and working with the battery it does it, it suddenly turns...

Hi, do you have had any 820-3436 that works fine but suddenly it turns off and if you try to turn it on right away it doesn´t turn on. You have to wait a couple minutes and then it turns on like nothing happened...

Hi, I have this board which doesn´t recognize the lower slot for the ram... is there anything that can be done to repair that? I have tried both dimms in the upper slot and they both work fine.... thank you!

SCL/SDA = 3.42V BOTH DIODE MODE TO GROUND: SCL= .446 SDA=.444 PPBUS_G3H = 12.30 V

PPBUS_G3H = 12.31v I'm thinking the SMC is dead maybe? Should I reball it?

Hi, I have this weird computer which has pp3v42_g3h, and all the correct voltages on the sys_onewire circuit, but it is still not turning the led on. Can you please help? Thank you!

Do you have voltage at L7510/20/30, but not L7630??? I don´t have voltage on any of those... Compare ohm value (not diode mode) to ground at L7630 with working board. Working board 20 ohms, my board 1.2 ohms Be sure all surrounding components and traces are good; pay atention to R/C7630...

So I have pretty much every 5v, 3v, 3.3v, rails... I am missing one that is created by the U7600: PPCPUVCCIO_S0_REG Voltages around U7600 13 = 5 14 = 5 3 = 3.3 6 = 0 10 = 0 4 = .5 7 = 0 9 = 0 12 = 4.74 11 = 0 15 = 0 8 = 0 2 = 0

Is it normal to have continuity to ground on this line: PPCPUVCCIO_S0_REG ??

I connected it to its original Magsafe 85w, its not turning on, when the battery is disconnected when plugin in the magsafe it goes orange-green-orange... when the battery is connected the magsafe goes green-orange like it should... should I measure the voltages using the original magsafe charger?

I will be checking that, but now I have a consumption of .180 mha on my PSU....

Red Probe Ground black probe pins on L7030 PIN 1 = 310 PIN 2 = 320