For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
Hello,
I have an A2337 here, which had corrosion on the CD3217B12s.
I removed the ICs, cleaned the corrosion and replaced the chips.
board is sitting at 5V and around 100mA.
Last steps were: replaced the SMC from matching board, no change. replaced U7100 and got proper PPBUS. Plugged EL Capitan stick in and got an image. All working well now. I was to worried about stuck amperage. The SMC I took off bubbled so was faulty from the beginning
So I received the board with the SMC and placed on mine. The board has now 8,5V on F7140.
But still not turning on. Stuck still at 500mA and not charging. SMC reset did work by shorting with tweezers, but didn't make any difference. Under thermal I saw U4500 getting warmest as well as the CPU
Yes, I read and did what you wrote. No change. But please check this out. From What I thought, that the SMC is programmed, this Chinese seller doesn't confirm.
So I received the SMCs from China, no green then orange light, the board goes straight to 500mA and stays there, CPU is getting hot. No short in that area.
Hi Guys,
I’m having a A1466 board (820-000165A) here with no light on the charger(on DC power supply) and no power.
F7140 has 8.16V on both sides
I don´t have:
- PP5V5
- PP3V3S5
- an enable on U7501 on Pin 12
- signs of liquid damage
partially green light with OEM wall charger
Any help...
So can I Attach a jumper from pin 1(missing pad) of R5100 to R5127 or am I getting the schematic wrong? If so so, is there a way to jumper the missing pad 1 of R5100?
So I looked further over the board and found a ripped off pad with a may ripped off resitor (R5100). The board view and the actual parts are a bit confusing. If there is/was a resistor, any idea if this is cause of my issue and where can I jumper the pad to? Attached are some small pictures