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Gotcha, I've done some looking on how to do that and would love to try my hand. How do I find out which ME version I need?

I got a diamond in the rough board in a shipment of "donor boards" today. Its an 820-3437-B that looked to be in good shape except it was missing its BIOS chip and termination resistors. For grins I pulled a BIOS chip from another board and put the missing components back on. It posts and seems...

Thanks a ton, definitely a dead SMC, I SMC_RESET_L is high at 3.3v. Damn, I really hate these. Can't thank you guys enough; really helped me out.

Found a bad diode, very hard to see that it was cracked--D6990. Replaced the diode and now getting a green intermittent light on the charger. Checked PPBUS_G3H, I now have a steady 12.28v. With the battery and charger plugged in, I get a steady green light, not orange. Jumped the power on pads...

Apologies, 1.81 Mega Ohms.

My apologies, 2.08 Mega Ohms.

Resistance to GND from PPBUS_G3H is 0.439v.

Sorry for the delay, under the weather. The board doesn't power on with the battery plugged in, but with just the power from the battery, I do get 11.8v on pin 24 of U7000. On just the DC jack, I get 2v.

No trouble, can't thank you guys enough. I'm out of the office at the moment but will be in around 5:00 PM EST. I'll give that a look and let you know.

I'm very sorry, I don't mean to be stupid but from the schematic it sounds like the PPCHGR_DCIN is the DCIN for U7000, but if not I'd definitely like to be corrected. I've replaced the U7000 twice, I'm concerned I may have a bad batch, Thanks a bunch for the help.

Oh and yes, 16.8v on PPCHGR_DCIN

Pins 17/18: 3 Ohms Pins 27/28: 20 Ohms

PPBUS_G3H isn't at 12.6v, only 1.3v. Charger was unplugged.

SMC_PM_G2_EN is high, 3.38v. PP5V1_CHGR_VDD is 5.469 PP5V1_CHGR_VDDP is 5.474 Resistance to ground on PPBUS_G3H is -1.025 fluctuating Mega Ohms. May not be doing this right. Not sure why it would show negative unless I had the probes backwards. The fuses F7040/41 appear fine.

Thanks Duke I did that covered it with some kapton tape to look official and it is working nicely!

Working on a stack of 820-3330's tonight and I have stumbled across a weird one. I had to replace the ISL as it had blown Q7030 and Q7035 MOSFETs. It came in with no power but occasionally gets a green light. When the light is on or off the PP3V42 is high (3.415 V), SMC_ACOK is 3.25V, I am...

I have a board that runs fine on battery, however I get no green light on the charger. All the power rails are there and even adapter sense but only at U6901 and U6900. There is most likely an internal short on Adapter Sense as there is no continuity from pin 5 of U6901 to pin 5 of the DC In...

I️ think I️ know where this board is headed, but I️ just want to be sure as this is a weird issue. It’s a mid 2010 13” that gets weird black blocks on the screen and other graphic anamolies, and the ram all by the keyboard is bad. ASD gives Error 60 Video Controller Failure. The problem persists...

SMC_LID stays high at 3.42 V with the IO board cable disconnected and with the trackpad cable disconnected, with the IO cable connected and the trackpad cable disconnected it gets 0.8 V on SMC_LID. The only other places that leaves is that there is probably crap under / dead SMC? I do not see...

So I put the board back in the case, I had the machine "bread boarded" out while I was measuring before. With the IO Cable connected I still get the same 2.65 V and this time I was actually able to watch it drop down as low as 1.73 V at one point and of course the backlight was cutting on and...