No sign of power on logic board, no chime, no fan spin
MacBook pro-2015 won’t power. Client claimed he shut it down and disconnected from power supply night before, but the next morning, he tried to power it on, nothing comes on.
Have tried all key sequences, from SMC reset to NVRAM. No power still.
Here is what I found on the logic board.
PS: I’m open to technical solutions. I have little skill using OpenBoard, I have also downloaded the board-view along with a schematic diagram of the system.
@danj This is how far I can zoom the infected area.
Also, I have reviewed the link but haven’t done any cleaning yet.
@danj Am done with cleaning corroded area. I’m yet to connect to power. Wanted you to have a look before doing anything I will regret later on.
@danj broken coil I guess
@danj While checking power rail, I observed PP5V_S3_ALSCAM_F which are the three components I pointed are missing. The logic board is A1502 820-4924. Also, note that this is part of the corroded area.
what other diagnosis do you suggest I carry out?
Thank you for your help.
Cette question est-elle utile ?