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Hi ive got an 820-01700 that had a short on U9580 with 0 volts when plugged in , i removed U9580 and short went away , now ive replaced U9580 and board powers to 19.6V then cycles off when it reaches 1.6a , under the thermal cam it shows U9580 and U9400 getting very hot so im guessing i have a...
Hi , ive got an 820-01958 not booting into operating system, it boots to the apple logo but no loading bar, it draws 0.62 at startup then drops down to 0.25 and wont go any further , also if i try to go into recovery mode apple logo pops up then goes blank screen, dosnt run from battery either ...
Hi ive got a 820-00165 board thats missing PM_SLP_S4_L but im struggling to see what creates that rail as far as i can tell im left with cpu or smc , so ive changed the smc and still the same , Diode mode reading is 495 so im sure its not a short , does this mean dead cpu or am i looking in the...
Hi ive got an 820-00875 stuck at 19.3v no boot. ppbus_g3h is 12.93v pp5v_s5 is missing , diode reading is 450 on pp5v so guessing no short , i see it comes from pp5v_s5_ldo but cant find where that comes from, under the thermal cam the smc is getting hot . I did see the smc has pp5v_ldo but not...
Hi ive got an A820-00244 no voltage or amp draw from charger i have tried different charging ports with no change . Diode reading on both sides of F3050 is 590 so i dont think theres a short , i thought i should at least get 5v there ? , im a bit lost where to start with this one
Hi , ive got an 820-00840 which had a liquid spill , U7420 was shorted to ground , replaced U7420 and laptop switching on but no display , i did get a display once but when i turnt it off it didnt come back again . I have 3.3v on PP3V_S5_LCD @ U8501 , PP3V3_SOSW_LCD_R is missing...
Hi this is a strange one i have an 820-00923 stuck at 5v (Not strange yet) changed changed u7000 tested had 19v booting up , fitted in laptop back to 5v , took out and reflowed u700 incase it didnt sit properly, back to 19v , fitted in laptop back to 5v ,took out and changed u700 back to 19v ...
Hi ive got an 820-00150 that came in totally dead , (charger faulty) had to replace 4 usb controllers and isl9240 , now board working apart from if you close the lid the laptop will not wake the screen, same on battery power or mains power , you have to hold your finger on the power button to...
Hi , ive got an 820--01598 with no display, no signs of any liquid spill at all , board is very clean , ive tried 2 new screens . I can hear the charger being put in and out . not sure what voltages i should have without the screen connected but i have 5V on PP5V_SOSW_LCD_R and 0v ON...
Hi ive got an 820-00875 turning on and straight off, with board connected when you plug the charger in you will get the battery icon , with an amp meter connected it shows it goes to 19.6v and draws an amperage of .6a then goes down to .26a then off but stays at 19.6v , when measuring cpu vcore...
bit of an odd one which im sure im missing something but banging my head so thought id put it out there, 820-00165 will not power on with battery power, now its not the keyboard the laptop will switch on and off fine with the mains connected , will even run from the battery once on, will even...
Hi i have a water damaged 820-00850 that came in with back right usb not working but everthing else ok , it had water damage around u3200 so changed it and now usb working , i did knock off L3200 next to it but put it back on, before i started i did have a display and now i dont :-( , i have...
Hi ive got an 820-00165 with a backlight issue, the problem is backlight does come on for a sec then goes off , it did have a liquid pill but only very light, ive change led driver just incase and c7796, c7797, c7799 just to be sure , i am getting 8.5v at L7701 so voltage is getting there
820-00165 macbook air battery issue, problem is laptop will power on from the keyboard when the mains is plugged in but not when its on battery only, i dont mean the laptop turns on when the mains is connected i mean it turns on via the keyboard when mains connected but not when just on battery...
Hi, ive got an 820-3209 that keeps chiming repeatedly even with everything disconnected , there is no signs of spillage anywhere the board is as clean as a whistle, so im pretty stuck as to where to start with this one , so any help would be appreciated
hi i have an 820-00165 with no image on screen , board had liquid damge,repaired the board to turn on but now no image. on L8304 i get 0v, on pin 1 of u8300 (edp_panel_pwr) i get 0v , dosnt seam to be a short reads 0.619 in diode mode, edp_panel_pwr looks like it comes straight from cpu ??? is...
820-00165 no green light when battery plugged in, when battery unplugged board works fine , will not work from the battery only , somehow i have 19v on R7006 even with D7005 removed which means somehow the charger voltage is going directly to the battery ??? , i cant see on the schematic where...
Hi ive got an A1706 820-00239 that originally had a liquid spill back in Feb, i repaired the laptop and its still working :-) apart from the touchbar itself :-( , now first of all i thought maybe the touchbar itself got liquid a s well and just gave up so i replaced the touchbar but no luck ...
hi does anybody know if an 820-00244 board would work in an A1534 that had an 820-00687 inside ??, the reason i ask is i cant find a replacement board for an 820-00687 but can for an 820-00244
Hi, ive got an 820-00687 with no power and ppvrtc_g3h missing 0v , now this line looks like its a dead short to ground but i have noticed (maybe im wrong) that ppvrtc_g3h is connected to the cpu, so would it be safe to inject a little voltage to see what warms up ???, also im using schematics...