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Actually PP3V3_S5 is shorted but present, so could it heat with the MagSafe only ? I don't have any lab supply yet and I tried with the MagSafe and an IR camera, the only hot point is under PCH (or the other side of the board I don't know). CPU heatsink was already removed.
I never plugged the board since I removed SMC and U7501. The short is 22ohms. When I lift L7560 the short is on PIN 2 and when U7501 lift up the short is only on PIN17, it looks like the short is on PP3V3_S5_REG_R. When I remove components I put them back in place after I checked the short still...
Hello there !
I have a 3437-B from a MBA 2013. At the beginning I had no light on charger and no fan spin, no more historic. I found corrosion on PP3V42_G3H supply, I replaced the bad components and still no light on charger. I tried reflow SMC without success, and I finally had a light on...
Every components are present. Diode mode on these caps gives me 0.267. Does someone have a good 820-4924 to confirm me these values ?
Also, I measured EDP_BKLT_PSR_EN and EDP_PANEL_PWR_OR_PSR_EN on U8330, I have both 3.3V. I ordered a new assembly, I'll give you some news as soon as it arrive...
Ok so it's a good news if 40V is normal, all my power rails seems to be fine on the LCD connector. I'll try an other assembly as soon as I find an other one.
When you say "check all C832x", you mean check for a short on the pins or there is an other way to check a capacitor ? All traces between...
Hello, I have a A1502 with a 820-4924-A that is working well when plugged in Display Port on external display. With internal display plugged in I have no image on it (but still on external display). The Apple Logo on the back cover is ON when the OS boot is over and I have PPVOUT_S0_LCDBKLT =...
"U4406
PIN 4 DFR_DISP_SMC_RST_L = 3,42V
There is an error; please post accurate information."
My bad I mean PIN 1 DFR_DISP_SMC_RST_L = 3,42V
"Check lid, reset and detect signals at J4402."
J4402
- PIN 2 DFR_TOUCH_LID = 1,76
- PIN 1 TOUCH_PANEL_DETECT = 0,05
- PIN 15 DFR_CLKIN_RESET_L = 0,09
-...
Boot fine in safe mode but touchbar and backlight keyboard doesn't work (I assume it's normal bc of safe mode). With normal boot the macbook ask me for a critical uptade, tried with wifi, wired cable and I also tried what this guy say on a forum...