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i have a 820-00875 and fixed the backlight chip, because it had some damage around there and also tested Fuse, correct output on both sides, plugged it all in and it worked, put it all back together and when i type in the password to log in it starts to load and then the screen goes black, but...

820-3787 replace the CPU FETs, can you guys tell me which are the ones that i have to replace i have this 820-3787 that has random shutoffs, been reading and duke had posted that was the issue,

This board was taken somewhere else for repair, looks like they cleaned it but no board repair was done, i have tested power aliases to see, but im stuck here, also test short to ground on missing power aliases and got no shorts, did not do ohms to ground, ( i know i should have not posted S4...

820-00165 with damage U7100 pin 12 (pp3v42), replaced U7100 and corrected all other burned caps and resistors also damage around SMC , C5125, L5001, C5001, C5020, REPLACED ALL and also replaced SMC with known working, there was damaged at U1950, replaced also C1950 There was damage at U1900...

i have a 820-01521 with minor liquid damage at and around u8200, and C8200 (replaced both) C6404, C6406, C6415 all damaged, all replaced, also R3108 (2) replaced, PPBUS_G3H 0.69V - Tested ohms to ground - 205 ohms, diode mode 0.108 and can i use...

have a 820-4924 and had very minor liquid on u 8300 and mostly on C8352 pin 2, is this a GPU issue, i seen it pin 2 of C8352 goes to the GPU,

820-00163 no green light, damage was the trackpad was shorting F4800, replaced trackpad and replaced F4800, now short is gone, but no green light, please help, i think SMC, want yalls opinion before doing that. U7000 1- 3.4v 2- 0 3- 0 4- 0.7V 5- 0.7V D7005 1- 16.53V 2- 12.29 3- 16.2V...

820-00165 Damage at C7103 (1) Replaced Damage at U8040, Replaced and ther was minor damage in between L7320, and L7310, also bit on Q7320 Pin 5, No CPU Vcore, PPBUS G3H 8.6v PPBUS_S5_HS_COMPUTING 8.6v PPBUS_S5_HS_OTHER_ISNS 8.6v PP3V42_G3H 3.42v PPVRTC_G3H 3.32v PP5V_S5 5.1v...

820-00426 , ppbus_g3h 3.86 resistance to ground on ppbus_g3h started at 18 kohms and dropping diode mode 0.65, NO GREEN LIGHT U7000 PIN 1 3.4V 5 0.72V 4 0.78V U7100 PIN 5 3.41V PP3V4S_G3H PIN 4 3.3V PIN 1 &2 3.26V (SMC_BC_ACOK) any ideas

hey guys, i just want to ask, i have a 2015 iMac 5K with description of lines on display, when they connect external monitor it all goes away and it works perfectly, Known GPU issues?

got this 820-3332 and U8900 was burned, seen at the top, replaced it but still no image or backlight, anything else i should look at or dead ? board turns on, just no image or backlight

820-00239 had small liquid damage at U8501, so i replaced U8501, U8510, U8500, did not work so i also replaced U8400, i tried a new display, and still nothing, it this helps any, the SMC had some damage coming from around PIN 161 (PM_SLP_S3_L) PM_SLP_S3_L is present by the way 3.3V

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...

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...

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