I have this macbook 820-00850 it does not turn on, it is stuck at 20v 0.260~0.220a and it restarts
I checked u9080 in pin 1 diode mode and it was short-circuited, I changed it, the short went away but I did not have 12v on pin 1-5-9-13-17-21, I had 0.9v or 3v, remove the ic, connect the charger and I had 12v, I continued checking and in resistor R9082 it had 1.7v and not 2.7v check that line that comes from u9000 pin 45 SSD0_VR_P2v7_EN I reballed and nothing changed
in summary
I do not have 2v7 enabled in the R9082 resistor, u9080 does not have 12v, check again and in
L9080 and L9081 I have a short 1v socket I see that it heats up U8900 which is an SSD, if someone can help me it would be great, I hope what I wrote is not so confusing
I checked u9080 in pin 1 diode mode and it was short-circuited, I changed it, the short went away but I did not have 12v on pin 1-5-9-13-17-21, I had 0.9v or 3v, remove the ic, connect the charger and I had 12v, I continued checking and in resistor R9082 it had 1.7v and not 2.7v check that line that comes from u9000 pin 45 SSD0_VR_P2v7_EN I reballed and nothing changed
in summary
I do not have 2v7 enabled in the R9082 resistor, u9080 does not have 12v, check again and in
L9080 and L9081 I have a short 1v socket I see that it heats up U8900 which is an SSD, if someone can help me it would be great, I hope what I wrote is not so confusing
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