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took off q8150,
im sorry for my stupidity, but i am not good at determining which power supply pulls a line down,
i want to sound dumb and say PP3V3_S0,
Got this board, which i cant figure out, no story of what happened, no liquid damage, below some board info, Thank you guys in advance!
PPBUS_G3H: 12.59V
PP3V42_G3H: 3.431V
PPVRTC_G3H: 3.336V
PP5V_S5: 5.15V
PP5V_S4: 5.15V
PP5V_S3: 5.15V
PP3V3_S5: 3.341V
PP3V3_S4: 3.341V
PP3V3_S3: 3.341V...
problem was D7010, it was a bit damaged for some reason, so im guessing it was not opening, another sucessful repair, thank you guys so much, specially you 2informaticos!!
820-4924 PPbus_g3h was shorted at C7900 to ground, injected power, and it heated up, under microscope it was obvious damaged,
D7005 Pin 1 -1.6v-1.7v, Pin 2 0v, pin 3 1.49v-1.6v
D7005 on diod mode Pin 2 - 0.13, Pin 3 0.33
PPBUS_G3H: 0 V
PP3V42_G3H: 0.18V
PPVRTC_G3H: 0.0V
PP5V_S5: 0.0V...
hey guys, i have a 820-00840 which im using 820-00875 as schematics and board view, Customer opened the laptop for some reason and shorted F4800 , replaced it and it worked fine, battery was showing X, so i thought maybe he just killed his battery, placed a Known working battery and still X, do...
820-00239 - Message of "System Management Controller" issues at self siagnostic
hey guys,
i have a 820-00239, computer came from someone replacing the display, few months went by and no issues, until now
at the moment, the computer runs with fan loud, and when i ran diagnostic says SMC may...
i removed R7704 and ran wire from BKL_EN to PWM, and no backlight, did reset pram a few times, and nothing,
also checked XW7720 , D7701 pin 1 to U7701 Pin 5, and there is continuity, so i think bridge integrity is ok, :(
hey guys, '
i have a 820-00165 that has no backlight i have already replaced backlight filter (F7700), have also replaced LP8550, LCD Connector, Q7707, and nearly everything else around there, and back of the board,
and i know i should try to understand it, but i have spent hours on it and...
hey guys, please if anyone can help, i have 2 logic boards, 1 - 820-2915, 1 - 820-2914, they both have no liquid damage, never been repaired, only problem is they do not read wifi, does not detect WI-FI, any ideas where i should start
i have already tried new known wifi cards,
i have a 820-3115 with backlight issues, i have never not been able to repair a macbook with backlight before, :(
Replaced LCD Connector, backlight filter, and backlight fuse,
seems like Q9706 wont open
Q9706 pin 4 12.6V, pin 3 12.2 V
LCD_BKLT_EN - 0V
BKLT_PLT_RST_L - 3.30V
any help
820-3476 - board turns on, and it shows image, when i run from ssd it shows apple logo, it loads and then right when it suppose to switch from apple logo and black screen, it just stays black screen with the backlight,
any idea what i should look for