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Just an update, I have fan spin after replacing u7100 and the voltage that used to be 1.3 v is now 8.2v, am rebuilding the computer to see if it will work properly.

OK so CHGR_RST_L is now .555 ohm to ground... no idea how, red probe on ground then black probe on each side of the component I am changing u7100 and will test again

With power applied the only is 3ohms turns to 1.8 ohms

Around u7100 looks good, f7140 not blown resistance to ground on PPBUS_G3H is 166 ohms CHGR_RST_L beeps @ 3ohms PP5V1_CHGR_VDD there PP5V1_CHGR_VDDP there c7150 beep like it is a filter though...

I have said goodbye to it

I have tried a new battery and does not do anything. When connecting power with the battery connected or not connected the light on the charge connector goes green then red, no fan spin. I have found r7005 has dc in voltage r7006 only has 1.3v. So is G3H voltage not being boosted or being...

15 inch macbook pro sn c02hd7u5dv7l fine lines across screen from left right, looks like it could be the vga processor to me, everything looks ok with lids connector and cable etc... any point in looking further or is it the usual graphics issue for this build? It only goes as far as a question...

I have seen a few of these MacBook airs like that now. Connect power, get green then red light and will not switch on. Found shorts on a while host of components, one of which. C1001. All of them have reference to the processor. As I say, I have seen quite a few of these now, so is the...

I never do, but in this case I'm not going any further. It has shorts to ground in quite a few places so I'm not wasting my time with it.

Thanks for the the pgnd thing. They only sent the board so I am going to try to get the board in a case for testing. Will update when I can.

820 3588 Replaced: FB8108 and f8100 U8102 is shorted to ground when beeping between ground and pin 5 from the board view Looking at the schematic it is actually PGND and not GND so is this still a short to ground that need removing or is this OK ad the fault is somewhere else? Thanks

Exactly what happened? F!? knows. They only sent the board so I am working back from the connector to see if there is anything no testing as it should, they have stated on the board they have changed a component, but changed nothing. They put a cap where a filter should be..... I have found the...

Has anyone got a schematic and board view for that board or know where I can get one from? Thanks

Diode mode Red probe on ground and black on actual ground reads 0 red probe on ground and black on voltage side reads 13 On beer testing, both sides beep

I have a new board and cable, but before that: C1084 and everything on that line (ppvcc _s0_cpu) is shorted to ground a I don't see anything else on that line so is this game over for the processor? C7260 - shorted to ground - is this due to the other shorts maybe? C7213 - shorted to ground also...

Son of a gun, I have some work to do then. Will update when I know more.

Both the board and the cable look effected, I have tried a new board and no change. Don't have another cable to try, but will get some. The connector on the logic board looks effected, the contacts look like hey have been hit with the liquid so I will investigate the connector and tracks that...

Opening up, board was a mess. General disruption all over the board, most disturbance is inside the case where he fan normally is. Cleaned board and looked again, even after cleaning L5001 looks burnt out, but beeped and about 3 ohms. Replaced anyway, now beeps at 2ohms. With board back in...

Beep test the board with the flex connected and see if there are any shorts at that point?

Beep the none grounded pins on the connector to ground and see if any beep then you will know if there is a short on the connector and it will be a starting point. You could also bet all surrounding caps to ground to see if there are any shorts in the line any of these caps are on that will be...