Recent content by sangolossyfon

Damage on A2141. I got this laptop for $80 and it's perfect condition physically but has bad water damage on both "chicken wings" of the board. See photos. Everything in the center (cpu/gpu/t2) look good. Cleaned the board and reflowed as many chips as possible without messing anything up. Now...

Well unfortunately this has a sad ending as I removed all the capacitors around the CPU and it was still shorted to ground. So bad CPU unfortunately. Probably shouldn't have injected 5V into PP5V_S3. But it's a lesson learned. Donor board now :(

Sorry for the delayed update. I tested everything in diode mode. Here is what I found. (values are in the format "resistance, diode mode reading") (I made sure to put red to ground in diode mode) Are the dead shorts on PP1V rails a problem? Are they possibly connected to the 5V shorts? I just...

i actually measured all the resistance values before injecting voltage so they are accurate. correct me if I am wrong, but from the chart I made, 14 ohms of resistance on PP5vS0 is basically the same as 0 ohms on Pp5vs4... i would say anything under 20-30 ohms is a "pure short." what is the...

Hi everyone, I am a high school student and i am running a MacBook repair business in my free time. I have only recently gotten started on some board level repairs and have a few boards that I haven't been able to figure out. I have the boardview for this A1502 laptop and a schematic for...