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129 posts

Master Geek


# 179302 3-Sep-2015 13:15
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Hi - I bought a video converter box from AliExpress, problem is it shipped with a 2 prong straight pin power adapter.. stats AC100-240V input, 5V DC output 1000mA.  Am I right in thinking I can buy this and it will work fine?  http://tinyurl.com/pemape3

Thanks in advance.

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590 posts

Ultimate Geek


  # 1379056 3-Sep-2015 13:37
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Should be ok.

Just have to make sure the barrel plug is the correct size, and the polarity is correct, ie centre positive or negative.
Check for a diagram on the AliExpress adapter to see what polarity the centre connector is.

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Uber Geek

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  # 1379057 3-Sep-2015 13:37
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Assuming the pin size and polarity is correct, yes.

If it's not a multi voltage adapter with swappable plugs is probably the best option.



 
 
 
 




129 posts

Master Geek


  # 1379250 3-Sep-2015 16:13
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problem - i don't know what the polarity is and can't see a diagram on the power adapter.  its model number is SJ-0510-U which i googled but can't find info on polarity.  will setting the wrong polarity damage the device?  considering its a cheap piece of crud from china lol.

https://cdn.geekzone.co.nz/imagessubs/blog7846aa0a3ee29218939cbefb5811a35a.jpg

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Uber Geek

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  # 1379257 3-Sep-2015 16:23
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When the product arrives the polarity should be marked on the power supply.  It will probably be centre positive.

If it is not marked find a multimeter and an adaptor plug to convert US plug to NZ plug, plug in the power pack and measure the output.

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  # 1379260 3-Sep-2015 16:27
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arcon: ... will setting the wrong polarity damage the device?  ...

Yes.




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229 posts

Master Geek


  # 1379267 3-Sep-2015 16:39
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I use these if stuff turns up from AliExpress with Chinese adapters:

http://www.trademe.co.nz/electronics-photography/other-electronics/adaptors-chargers/auction-942473101.htm

Y
ou can also get from $2 type shops.


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  # 1379294 3-Sep-2015 17:14
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nbroad: I use these if stuff turns up from AliExpress with Chinese adapters:

http://www.trademe.co.nz/electronics-photography/other-electronics/adaptors-chargers/auction-942473101.htm

Y
ou can also get from $2 type shops.



Fine for at home, but if you are using it in a business that will not fly.




Richard rich.ms

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