Kind of a different question...

[budm]

Re: Kind of a different question...

Bottom line, you need to ground the exposed metal of the computer to the AC safety ground, and to add safety, plug the AC adapter into GFCI outlet.

[EasyGoing1]

Re: Kind of a different question...

Bottom line, you need to ground the exposed metal of the computer to the AC safety ground, and to add safety, plug the AC adapter into GFCI outlet.

You mean one of those outlets they put in bathrooms?

[stj]

Re: Kind of a different question...

the metal in the socket bit is probably just for strength.
meter the resistance between that stud and the macbook body with the charger connected.

[EasyGoing1]

Re: Kind of a different question...

the metal in the socket bit is probably just for strength.
meter the resistance between that stud and the macbook body with the charger connected.

Big goose egg ... but I can still connect a wire to it on the inside of the PSU and use it as my point of entry.

[stj]

Re: Kind of a different question...

maybe you can just replace the 2pin socket with a cloverleaf style

[eccerr0r]

Re: Kind of a different question...

if it's a true ground pin why doesn't #%&*$ offer a 3 prong head for that charger?

But even if they do, where's that Y capacitor? Is it in the head?

[eccerr0r]

Re: Kind of a different question...

The magic smoke leaked out of this one ... https://www.badcaps.net/forum/showthread.php?t=94756 seems that round button is connected somewhere.

[stj]

Re: Kind of a different question...

no, they are just using the backing to secure a thermal fuse.

[EasyGoing1]

Re: Kind of a different question...

maybe you can just replace the 2pin socket with a cloverleaf style

That's a good idea ... I'll have to see what I'm dealing with once I get the PSU apart. The default configuration of the PSU is an adapter with just two prongs sticking out... no power cable at all... and the PSU is so big and heavy, plugging it into a power strip that way is useless.

[EasyGoing1]

Re: Kind of a different question...

The magic smoke leaked out of this one ... https://www.badcaps.net/forum/showthread.php?t=94756 seems that round button is connected somewhere.

You might be right ... unless this wire is coming from the transformer ...

[TechGeek]

Re: Kind of a different question...

Can confirm that the metal stud is grounded. Connect a grounded Apple charger cable to it and your problem should be solved.

[EasyGoing1]

Re: Kind of a different question...

Can confirm that the metal stud is grounded. Connect a grounded Apple charger cable to it and your problem should be solved.

I'm not so sure about that. This PSU is from a 2019 MBP and when I did a continuity check between the metal stub and the chassis of the laptop, I got nothin.

[TechGeek]

Re: Kind of a different question...

As in infinite resistance or 0 resistance?

[petehall347]

Re: Kind of a different question...

might be worth asking apple what to do ..or maybe first ask if you should be feeling electricity on the metal parts .

[stj]

Re: Kind of a different question...

apple: "that's not electricity your feeling, it's euphoria from the joy of owning apple"

[budm]

Re: Kind of a different question...

Use your AC Volt meter to measure the Voltage between AC outlet ground and the metal part of the Macbook.
Plug the Macbook power supply into the GFCI outlet then use your AC Amp meter between outlet ground and the metal part of the Macbook to see how much current you are seeing.

[EasyGoing1]

Re: Kind of a different question...

Use your AC Volt meter to measure the Voltage between AC outlet ground and the metal part of the Macbook.
Plug the Macbook power supply into the GFCI outlet then use your AC Amp meter between outlet ground and the metal part of the Macbook to see how much current you are seeing.

This is how much Apple Euphoria I'm getting from my laptop right now... that's from the ground port on the wall socket and the part of the laptop where I often rest my palm.

[petehall347]

Re: Kind of a different question...

now test the current .

[EasyGoing1]

Re: Kind of a different question...

now test the current .

im getting ZERO for amperage

[stj]

Re: Kind of a different question...

your meter is not showing it right - i'v seen that with flukes before, i think they filter out high frequency stuff.