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My dell studio 1440 14z can't turn on .I need help from her

by efang622 / November 11, 2012 7:49 AM PST

My dell studio 1440 14z can't turn on. It is my daughter's laptop and now she sent it to me.
I tested power supply, power adapter card and power bottom. I think all of them are ok except power bottom ,because I don't know how to test to power bottom . Yesterday I received a motherboard which I ordered from eBay.I put the board on my laptop but got some result! Now I have no idea what is next I can do and hope get some advices from here. Thanks!

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All Answers

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A power button is easy to test.
by R. Proffitt Forum moderator / November 11, 2012 7:52 AM PST

It's a switch and an Ohm meter across the 2 pins will show it open and close. Pretty basic stuff so I'll stop here.

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I like to know how
by efang622 / November 11, 2012 9:16 AM PST
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Looks like you put the Ohm meter across
by R. Proffitt Forum moderator / November 12, 2012 12:15 AM PST
In reply to: I like to know how

The switch contacts on the PCB. D3 looks to be an LED.

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