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OT: Laptop Charger Pack
scootz - 16/9/14 at 12:16 PM

I need to replace the 12v male connector (goes into lighter socket) for a Panasonic Toughbook laptop charger pack.

I have 2 wires going from the adapter to the male connector. A solid black one and a black one with a thin white stripe along its length.

Unfortunately I threw away the old connector, and didn't check which was running to live. Doh!

I don't have my multi-meter with me.

I have always thought that the wire with the thin white stripe would be the +ve... is this correct?

Cheers!


whitestu - 16/9/14 at 12:51 PM

From my experience that is usually correct.

Stu

scootz - 16/9/14 at 01:00 PM

quote:
Originally posted by whitestu
From my experience that is usually correct.

Stu




Cheers.

Trollyjack - 16/9/14 at 02:42 PM

I would go for that also

mookaloid - 16/9/14 at 03:12 PM

There is often a symbol next to the socket on things which confirms which is the positive.




Although I agree that the centre is usually +ve

scootz - 16/9/14 at 03:22 PM

Cheers. Will have a look when next in the office.

scootz - 18/9/14 at 04:16 PM

quote:
Originally posted by mookaloid
There is often a symbol next to the socket on things which confirms which is the positive.




Although I agree that the centre is usually +ve


Cheers. The first of those symbols appears on the adapter (+ve polarity). I've know nothing about that symbol... can I determine from it that the black wire with the thin white stripe is +ve and the solid black -ve?

David Jenkins - 18/9/14 at 04:42 PM

quote:
Originally posted by scootz
Cheers. The first of those symbols appears on the adapter (+ve polarity). I've know nothing about that symbol... can I determine from it that the black wire with the thin white stripe is +ve and the solid black -ve?


It *usually* is - but the only way you'll know for certain is to put a multimeter on it. This might be a pain, but it's better than frying a laptop!

scootz - 18/9/14 at 04:45 PM

Ta muchly.

scootz - 18/9/14 at 09:42 PM

Lol... blew the fuse!

I guess the Black/White is not the +ve!