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hmmm still exacvtly the same, even after reflow any other directions in mind ?

SMC_ADAPTER_EN - 3.4v will try to reflow tom tom thank you @2informaticos

PCH_INTRUDER_L (R1301) - 2.8v PCH_INTVRMEN (R1302) - 3.1v

PM_BATLOW_L - 3.3v PCH_DSWVRMEN - 3.2v PM_DSW_PWRGD - 3.4v -- PCH_CLK32K_RTCX1 (U1900) - 0.41v PCH_SRTCRST_L (R1300) - 3.3v PPVOUT_S0_PCH_DCPRTC (C0895) - 1.3v PPVRTC_G3H (C1910) - 3.3v RTC_RESET_L (R1303) - 3.3v

thanks for your reply yep only original charger. PM_SLP_SUS_L (Q5510) pin2 - 0V 3V3_SUS (U8130) pin2 - 0V

Hey forum I've got 820-00165 board - no liquid damage, never touched, never opened before. I have those voltages but still can't power it. L7310 - 8.58v L3095 - 0 L7340 - 0 L7630 - 0 L7560 - 3.3v C3287 (pin1) - 3.3v C8142 (pin1) (S5_PWR_EN) - 8.58v U5110 pin1- 3.43 pin2- GND pin3- 3.43...

sorry for late reply was very busy hmm weird on first attempt to measure on U8200 I had basically the same OUT 1.79 but on further attempts i'm getting 0V on IN and OUT U8200 U8205 U8210 U8220 VIN1 - 0V VOUT - 0V

yep also pulsating PLT_RST_L - 1.29V L7930 - 1.79V on page 64 I have 4x mono speaker amplifier, is that it ?) I'm using 820-00840 (ZEON) Schematic diagram

still the same behaviour. Tried on both ports : it goes till 0.60-0.65A and back to 0.05A and steady 20V fan spins only once and rapidly stops

oh okok sorry for confused post so fan spins only once then stops and doesn't spin anymore. on coils I get L7210, L7220 - pulsating 0.94V to 0V L7370 - pulsating 1.05V to 0V L8060, L7900 - pulsating 1V to 0V L7960 - pulsating 0.9V to 0V L8030 - pulsating 1.2V to 0V L7030 - pulsating 13V to...

it goes like this when plugged, voltage goes to 3.6V when fan starts to spin, goes up 13V after back to 3.7V, then 4V, then 0V and back to 13V and fan does spin any more. Tested on F7000 pin2

Great I've got back the 20V after replacing U7000. So now I have steady 20V, fan spins ones and amps go to 0.6 and back to 0.05A So basically looping as before I short-circuited the U7000

thank for your reply ) F7000 - is good PPBUS_G3H - 0.45 U7000 : P_IN - 5V AUX_DET - 1.28V SMC_RST_IN - 0V VDDA/P - 0.38V EN_VR1 - 0.29V SMC_RST - 0.1V AUX_OK - 0V A/BMON - 0.28 on both

Hey everybody I've got a motherboard A-820-00840 but it's kinda messy. HISTORY : The customer brought it saying that it suddenly won't turn on. He said that the laptop was always and only serviced by Apple Store. It appears that they already replaced the screen and the motherboard :LOL:))))...

😍😍 Indeed ! there was no continuity between C8326 pin2 and R8317 pin1 thank you @2informaticos 🙏 Great as always

true true sorry having a hangover since yesterday o_O so when I plug the ssd and speakers I do have a chime and a backlight but no image and fan at max level I do get on J8300 40V on pin1 5V on pin 28,29,30 L7710 - 10V

now with the lcd connected and open lid I do get 5V on L8300 and 5V on pin 28,29,30 on J8300

ok just replaced J8300 (to be sure) L8300 go indeed to 2.5V for a few seconds (not 5V anymore) LCD_HPD_CONN (C8353) goes high but very quickly, don't have time to spot exact voltage

thanks for your reply oh I forgot to mention all measurement were done without LCD connected here how R8317, R8318 and C8302 are connected now with the lcd connected, i'm getting : on J8300 pin 12 : 1.5V on L8300 : 0V on both ends

Hey everybody and Happy New Year I've got an issue with 820-3476-A board. Customer brought it after another shop repair attempt. The board had minor oxidation around jtag port and J8300. R8317, R8318 and C8302 were knocked off. After replacing them I'm still missing some voltages...