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Am I correct in thinking. If a 5V line has issues and a 3V line has issues, there's no point looking at the 3V line since it's produced by the 5V anyway and the issue is most likely with the 5V?

PP5V_S5 is pulsing on u7200. but PPBUS_S5_HS_OTHER_ISNS is stable of course

3v3_S5 is pulsing like crazy. 0 - 3.3V 3v3_SUS is pulsing as well but from 0 - 1v and then 0 - 0.04v

thank you! found someone here that sells rebelled U7000 on Ebay. Have installed it now. It's different now. 3 of the ports show 5V but are now pulsing from 0-0.04 amps Then one of the ports is now 20V but doesn't pulse at all and shows 0 amps

Liquid damaged by the LVDS connecter. Can't see anything anywhere else. Already replaced u7000 and q7085 on U7000 Pin1 = 0v pin2 = 17.5v pin3 = 4.2v pin9 = 0v pin12 = 3.47v pin14= 3v pin 15 = 0.3v pin17 = 12.54v pin19 = 5v pin20= 5v pin27 = 17.5

Hi there! This one had a badly damaged U7000 area. I didn't have this exact board in stock so I used a 820-00239 board instead. Replaced some of the components around it and also u7000 itself. I'm starting to realise that this u7000 might not be compatible with the 820-00850. Is that why it's...

Worked!!! thank you so much!

Does anyone know where I can get a replacement from? Without having the whole board? I need one fast in the UK

Can someone tell me where to find the board number on this thing? any way, The thing does chime, no image on display. Plug in USB drive with flashing light at first then turns off, flashing reappears, then off. Removed display, LED 1 and two come on, 3 doesn't and 4 is off I assume because no...

forget that. I replaced Mosfet again and it works! wooo. Solved

I have replaced both mosfets and the resisters next to them. That eventually gave me green light on the original charger too, but with a slight flicker. Works fully on fake charger. Also replaced ISL6259 PP3v42 is getting 3.48V

im so unlucky with these boards recently wtf

0V on that. dead short on PPVCC_S0_CPU. 0 ohm short yes I get 3v3_SUS Guess it's dead :(

sorry yes I meant R7202. Both sides are 8.59V on that. on r7201 it's 0v on both sides pin 1 is 0V Pin 16 0v pin 17 8.59v of course also checked R1951 just in case. 0V both sides. checked all big coils on top. everything is 0V except for L7560 and of course L7130 is 8.59V I forgot to...

Have a bad feeling with with this MacBook Air. I have replaced both U7200 and r7200 and no luck. I'm weirdly getting 8.59 on ppbus. I know that this line is sensitive so im going to guess that even that is too high . Also I had to run a Jumper on pin 17.... Pin 16 looked toasty as well. Looks...

I thought this would be the case no matter if its original or not? Like on an iPhone screen you need to program the LCD to the phone. Is that not the case on these True Tone MacBooks?

Is that active by default or would it theoretically have to be programmed? Is there a chip I can transplant in this case?

The only strange thing I've found there is that PP3v3_S5_SMC_VDDA is 3.415V just like the PP3v42 line. So PP3v42 is not quite 3.42 and PP3v3_S5_SMC_VDDA is slightly too high. Not sure if im nitpicking here but I always saw the pp3v42 line as an almost perfect 3v42 on other MacBooks

Another SMC, no change. I guess this is a no fix

I get 1.6V on SMC_EXTAL and 1.2 on SMC_XTAL_R Does 1.6 seem too high to you? Ok will try another SMC