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OK I just replaced a dc power jack on a hp/compaq nx7400 system board. The replacement jack doesn't exactly match the original so i had to mod it a bit. http://cgi.ebay.com/OEM-REPLACEMENT-DC-POWER-JACK-HP-COMPAQ-NX7400_W0QQitemZ110289847820QQihZ001QQcategoryZ158847QQcmdZViewItem Now my ground is not connected. A schematic of the power section of the system board would be fantastic so I would know which pins to connect to 18v, 19v, and ground respectively. Can you help?

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  • auriuman78 Oct 04, 2008

    I am an electronics tech w/assoc degree, i just cant find any technical info out on the net about this fella here. Thanks!

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Dude.. you're way too deep into the subject so I honestly don't think you may get your answer here unless an actual technitian from HP may be able to get that info him/herself for you..

the best I can probably suggest is this.

1. I would probably give tech support a call to have them provide some suggestions (you may have to pay for the info)

2. check with the manufactorer of the motherboard (I don't know if it's hp/compaq or another company that supply that info... now is possible that the info may be propiatery so may not be avaliable to the public

3. try this website http://www.supplyframe.com/datasheet-pdf/search/DC%2520POWER%2520JACK%2520HP%2520COMPAQ

if needed this is the service manual for your laptop.. but I could not see anything as specific/detailed as your question.. but here it is if you need it..
http://bizsupport.austin.hp.com/bc/docs/support/SupportManual/c01035648/c01035648.pdf

sorry I was not much help.. if you find the source of your info once you found it.. post back and share your source if possible.

Posted on Oct 04, 2008

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9807c6d.jpg
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