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General discussion (archive)I lost my netbook adapter...(44 posts)(44 posts)
(44 posts)
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This is my favourite topic
Posted May 03, 2011
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iuliand: Good!
Now check for the polarity. You have 90% chances to be the same (10% is because Chinese sometimes see things differently). Look for the small sketch I mentioned earlier. If you have the old adapter (maybe you recovered something from hamster's belly) look on it for clues regarding the polarity. You have greater chances to find the polarity mentioned on the adapter but look also on the netbook (sometimes is engraved in plastic near the plug). You just have to look carefully. If there is no polarity indication you may check it with a measuring instrument if you have one (just ask if you need further assistance).
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macuahuitlgog: My gaming laptop adapter has something on it that looks like this o--c---o. The first circle has a minus in it. The half circle has a dot in it. The second circle has a plus in it.
So that would appear to be your polarity. The middle circle is your neutral wire and the other two are your ground/earth and positive. At least that is what I can tell from the little I know about household current. Make sure the symbols on your adapter and on your laptop match.
Posted May 03, 2011
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iuliand: Good!
Now check for the polarity. You have 90% chances to be the same (10% is because Chinese sometimes see things differently). Look for the small sketch I mentioned earlier. If you have the old adapter (maybe you recovered something from hamster's belly) look on it for clues regarding the polarity. You have greater chances to find the polarity mentioned on the adapter but look also on the netbook (sometimes is engraved in plastic near the plug). You just have to look carefully. If there is no polarity indication you may check it with a measuring instrument if you have one (just ask if you need further assistance).
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macuahuitlgog: My gaming laptop adapter has something on it that looks like this o--c---o. The first circle has a minus in it. The half circle has a dot in it. The second circle has a plus in it.
Yep, that's it. You found the polarity sketch. That means that + is in the middle of the connector.
Look for something similar on the netbook. The polarity should match the same rule with + in the middle. Most probably it is the same. I have yet to see one with + on the outer contact...
Post edited May 03, 2011 by iuliand
Posted May 03, 2011
I can't find such symbols on my netbook. :(
Posted May 03, 2011
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macuahuitlgog: My gaming laptop adapter has something on it that looks like this o--c---o. The first circle has a minus in it. The half circle has a dot in it. The second circle has a plus in it.
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iuliand: Yep, that's it. You found the polarity sketch. That means that + is in the middle of the connector.
Look for something similar on the netbook.
I thought that the second circle with the + in it would be the + side? At least that is what I gathered from the description...

o- c . o + : please explain how the + is in the middle of the adapter. The "drawing" I made was from OP's description. Asking for clarification/educational purposes :D.
Posted May 03, 2011
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macuahuitlgog: I can't find such symbols on my netbook. :(
The symbols should be next to the plug hole for your netbook. If it's like my laptop, you really have to squint to see the identations.
Posted May 03, 2011
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macuahuitlgog: I can't find such symbols on my netbook. :(
If I were you I would just plug it. I have never seen yet a reversed connector. Anyway if you go and buy a new aftermarket adapter you will face the same dilemma (unless you buy an original part). Theoretically + is always in the middle.
Posted May 03, 2011
Ok, I will just plug it in and turn on the netbook, later tonight. :) It is either that or I have a new drink coaster. :)
Posted May 03, 2011
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iuliand: Yep, that's it. You found the polarity sketch. That means that + is in the middle of the connector.
Look for something similar on the netbook.
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JudasIscariot: I thought that the second circle with the + in it would be the + side? At least that is what I gathered from the description...

o- c . o + : please explain how the + is in the middle of the adapter. The "drawing" I made was from OP's description. Asking for clarification/educational purposes :D.
Well, you just have to see the sign and everything will be clear... :)
It is practically a drawing of the plug seen from front.
The "C" represents the outer contact and is interrupted in order to make possible to draw trough it the line pointing to the center contact. I hope I was clear with my explanation :)
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macuahuitlgog: Ok, I will just plug it in and turn on the netbook, later tonight. :) It is either that or I have a new drink coaster. :)
Good choice.
I'm positive everything will be fine.
Checking the polarity was meant just to be extra sure.
Are the notebook and the netbook made by the same brand? If so, there is one reason more not to worry about.
Post edited May 03, 2011 by iuliand
Posted May 03, 2011
Thanks, I appreciate the help. :)
Posted May 03, 2011
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JudasIscariot: I thought that the second circle with the + in it would be the + side? At least that is what I gathered from the description...

o- c . o + : please explain how the + is in the middle of the adapter. The "drawing" I made was from OP's description. Asking for clarification/educational purposes :D.
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iuliand: Well, you just have to see the sign and everything will be clear... :)
It is practically a drawing of the plug seen from front.
The "C" represents the outer contact and is interrupted in order to make possible to draw trough it the line pointing to the center contact. I hope I was clear with my explanation :)
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macuahuitlgog: Ok, I will just plug it in and turn on the netbook, later tonight. :) It is either that or I have a new drink coaster. :)
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iuliand: Good choice.
I'm positive everything will be fine.
Checking the polarity was meant just to be extra sure.
Are the notebook and the netbook made by the same brand? If so, there is one reason
more not to worry about.
Well with the " c. " being in the middle of the "drawing" makes it difficult for me to believe that it represents the outer contact. I'm sure it's correct but I still think electrical engineers are just trolling the populace :D.
Posted May 03, 2011
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macuahuitlgog: Thanks, I appreciate the help. :)
You're welcome.
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JudasIscariot: Well with the " c. " being in the middle of the "drawing" makes it difficult for me to believe that it represents the outer contact. I'm sure it's correct but I still think electrical engineers are just trolling the populace :D.
Please check this article and look at the image on the right depicting "positive polarity" diagram.
http://en.wikipedia.org/wiki/Polarity_symbols
Post edited May 03, 2011 by iuliand
Posted May 03, 2011
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Fenixp: My bunny ate my adapter for notebook! Thank god I have bought this awesome superthing with changable reduction, I can use the same adapter for notebook and netbook with different voltage (by the way, it shoots 120W in both and they work fine... Well, it could to be more precise)
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ceemdee: Was the bunny okay?
Oh he was the bastard
Posted May 03, 2011
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macuahuitlgog: Thanks, I appreciate the help. :)
If you feel uneasy not knowing for sure the polarity of the netbook then post the model here and maybe we can find some information over the net or maybe someone else has one and can confirm the polarity from the adapter.

edit: I looked up on the internet and it seems that there are some LG notebooks using negative polarity. It's just I never seen one yet. There is no standard but the majority use positive polarity. I hope you are not terribly unlucky... :)
Post edited May 03, 2011 by iuliand
Posted May 03, 2011
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macuahuitlgog: Thanks, I appreciate the help. :)
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iuliand: You're welcome.
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JudasIscariot: Well with the " c. " being in the middle of the "drawing" makes it difficult for me to believe that it represents the outer contact. I'm sure it's correct but I still think electrical engineers are just trolling the populace :D.
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iuliand: Please check this article and look at the image on the right depicting "positive polarity" diagram.
http://en.wikipedia.org/wiki/Polarity_symbols
Thanks for the link. It made everything clear now.
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General discussion (archive)I lost my netbook adapter...(44 posts)(44 posts)
(44 posts)