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York c740 I have had to replace my power pack as it was lost in a recent shift. I have purchased a generic replacement but do not know if it should be on positive or negative polarity. Can you please help. Thanks

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Posted on Jan 02, 2017


SOURCE: Lost ac power supply adaptor for Mli 190 speakers 12vac

Posted on Jan 22, 2007

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SOURCE: power supply

At the adaptor input on the device there is a small diagram that shows the polarity of the tip and the shield of the connector. If it is not there, check the information plate on the back of unit. It has the model/serail number on it as well as the power consumption and build date.

Posted on Jun 25, 2007

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SOURCE: IBM T30 laptop- replacing CMOS battery

Provided the laptop booted (albeit to requiring bios set up), all is well. The data such as time needs to be re-entered manually, because since the battery is required to maintain volatile memory, when the battery goes flat or is removed, the data is lost. Re-enter all data, including boot sequence (i.e. IDE 0, CD-ROM/DVD)! exit saving to CMOS. should reboot to OS.

Posted on Jan 31, 2008

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SOURCE: need to replace lost power cord fpr back pack bantam 181100

the factory power transformer is 5V 1 A model TRX-022A input is AC100-240V 50/60 Hz 0.15A output DC5V 1A

Posted on Dec 29, 2008

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SOURCE: I need to know the


I found the spec for the adaptor:
Output: 12V DC
Current: up to 5A / 60W max

Connector: Barrel, Center +

It means positive is the inner side of the connector.
Here is some useful links.

It is not a very special adapor i think.

Posted on Jan 12, 2009

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Go Ahead. Use Us.

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