What voltage should magsafe dc adapter check at?
If I were to use a multimeter to check voltage on a magsafe dc jack, what reading should I get? Also, if anyone can pinpoint in a picture what point I need to actually check on the dc in. I have an a1181 model macbook. My problem is that the computer will not power up at all, even bridging the power solders. When I check the power solders though, I do get a reading of voltage as I do on many other parts of the board. I wanted to check the magsafe dc in to make sure it wasn't starting up because of a bad magsafe dc in.
Ist dies eine gute Frage?
Now that I have though about it after I posted that, when plugged in it will charge the battery, I tried booting with the battery only and it still does not work. I'm at a loss, there are no signs of damage to the logic board at all.
Have you searched using the troubleshoot boot problem macbook tag to see a list of diagnosis steps. e.g. Will it boot to an optical drive? Has this unit been dropped or wet? What makes you think this is a charging issue, not a cable or HD problem?
The unit gets no power at all, no noises, no fan spin-ups, no optical drive noise whatsoever. It is possible that it has been dropped or had liquid damage, I have not been with it 100% of the time, however there is no apparent drop or liquid damage, all of the liquid sensors are still white on the computer. I've tried to boot with no ODD attached as well as no HDD and no ram, still gets no power. It was just weird to me that I was still getting a current throughout different parts of the board, including the power pinouts, but it would not give me any signs of life when trying to start.
Oh and I have used to known working Magsafe power cords. They both will turn bright green when plugged in, they both charge the battery while it is in the computer, computer still will not boot.
I have similar problem. i tried to measure voltage in my power supply ( i have this model http://hardware.be/power-supply/dell/x14... and it shows that everything ia okay! But time to time it stops work. Could you tell me any advices, please!
von Scott Waschlerner
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