Palhano
Member
Mac arrived without turning on, with 5v on all ports. Perfect board, no oxidation.
It didn't have the PP3v3_g3h line. I discovered problems on the PPVIN_G3H_P3V3G3H line, with 2v on the PM_EN_P3v3_G3H, after replacing the D6902, I now have 4v on the PM_EN_P3v3_G3H, but 2.2v on the PP3v3_g3h.
Looking at other topics, I followed some tips, but without success. I checked nearby resistors and everything was perfect. I removed the R6923 and I have 3.4v on the L6900, so the problem is on the PP3v3_g3h line.
In diode mode, I have 0.360 on the PP3v3_g3h line. I tried injecting 3.4v on the line, nothing got hot!
Any other tips?
It didn't have the PP3v3_g3h line. I discovered problems on the PPVIN_G3H_P3V3G3H line, with 2v on the PM_EN_P3v3_G3H, after replacing the D6902, I now have 4v on the PM_EN_P3v3_G3H, but 2.2v on the PP3v3_g3h.
Looking at other topics, I followed some tips, but without success. I checked nearby resistors and everything was perfect. I removed the R6923 and I have 3.4v on the L6900, so the problem is on the PP3v3_g3h line.
In diode mode, I have 0.360 on the PP3v3_g3h line. I tried injecting 3.4v on the line, nothing got hot!
Any other tips?
